<?xml version="1.0" encoding="utf-8"?><?xml-stylesheet href='http://feed.feedsky.com/styles/temp01.xsl' type='text/xsl' ?><!--这是一个由Feedsy提供技术支持的Feed，为了提高读者阅读的体验，以及满足用户美化自己Feed的需要，我们设计了多种精美的Feed模板，提供给大家选择，所有最终呈现出来的样式，皆由用户自愿选择使用，未经许可，任何团体和个人，请不要擅自修改样式或者盗用，这是对于用户选择权的尊重。--><rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:fs="http://www.feedsky.com/namespace/feed" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0"><channel><atom:link href="http://feed.feedsky.com/Bioku" type="application/rss+xml" rel="self"></atom:link><fs:self_link href="http://feed.feedsky.com/Bioku" type="application/rss+xml"></fs:self_link><lastBuildDate>Wed, 16 May 2012 10:23:33 GMT</lastBuildDate><title>Bioku</title><description>带你畅游生命科学的海洋！</description><link>http://www.bioku.net</link><sy:updatePeriod>hourly</sy:updatePeriod><sy:updateFrequency>1</sy:updateFrequency><language>en</language><pubDate>Wed, 16 May 2012 10:23:33 GMT</pubDate><item><title>中国市场上的移液器品牌（三）官方网站</title><link>http://www.bioku.net/archives/2772</link><content:encoded>&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;1. Eppendorf 艾本德&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.eppendorf.cn/&quot; rel=&quot;nofollow&quot;&gt;http://www.eppendorf.cn/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2. Gilson 吉尔森（总代理：香港华运）&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.gilson.com.cn/Article/ShowClass.asp?ClassID=8&quot; rel=&quot;nofollow&quot;&gt;http://www.gilson.com.cn/Article/ShowClass.asp?ClassID=8&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;3. Finnpipette 雷勃（热电）&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.thermo.com.cn/Category397.html&quot; rel=&quot;nofollow&quot;&gt;http://www.thermo.com.cn/Category397.html&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;4. BIOHIT 百得&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.biohitchina.com/index.asp&quot; rel=&quot;nofollow&quot;&gt;http://www.biohitchina.com/index.asp&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;5. Brand 布兰德&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.brand.de/cn/&quot; rel=&quot;nofollow&quot;&gt;http://www.brand.de/cn/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;6. Rainin 瑞宁&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://cn.mt.com/cn/zh/home/products/level1_pipettes.html&quot; rel=&quot;nofollow&quot;&gt;http://cn.mt.com/cn/zh/home/products/level1_pipettes.html&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;7. &lt;span style=&quot;font-family: Arial;&quot;&gt;NICHIRYO 立洋 &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.nichiryochina.com/&quot; target=&quot;_blank&quot;&gt;http://www.nichiryochina.com/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;8. SOCOREX&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.socorexchina.com&quot; target=&quot;_blank&quot;&gt;http://www.socorexchina.com&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;9. Labnet  莱伯特&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.labnetinternational.com/&quot; target=&quot;_blank&quot;&gt;http://www.labnetinternational.com/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;10. Axypet（中文网站上无此，在国内代理商主要有北京赛泰克、上海百赛和深圳赛泰克等）&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.axygen.com/&quot; rel=&quot;nofollow&quot;&gt;http://www.axygen.com/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;11. Hamilton 哈美顿&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.hamiltonchina.com/products.asp?lx=small&amp;amp;anid=72&amp;amp;nid=6&quot; rel=&quot;nofollow&quot;&gt;http://www.hamiltonchina.com/products.asp?lx=small&amp;amp;anid=72&amp;amp;nid=6&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;12. CAPP 凯博&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.capp.dk/ch/index.php&quot; target=&quot;_blank&quot;&gt;http://www.capp.dk/ch/index.php&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;13. Dragonmed 大龙&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.dragon-lab.com/dragonLab/?c=product&amp;amp;a=listPipettes&quot; rel=&quot;nofollow&quot;&gt;http://www.dragon-lab.com/dragonLab/?c=product&amp;amp;a=listPipettes&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/639111887/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2772&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>移液器</category><category>官网</category><category>购物贴士</category><pubDate>Wed, 16 May 2012 18:23:33 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2772#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2772</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2772</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/639111887/6883460</fs:itemid></item><item><title>中国市场上的移液器品牌（二）进口品牌</title><link>http://www.bioku.net/archives/2763</link><content:encoded>&lt;p&gt;在全球范围内，市场占有率超过5％的品牌有五个，分别是EPPENDORF、RAININ、GILSON、FINNPIPETTE和BIOHIT。但具体到中国，情况则有很大不同。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;第一梯队&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;第一梯队非德国艾本德（EPPENDORF）莫属。作为移液器的发明者，艾本德在移液器市场近几年无论是在全球还是国内，都稳居第一。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/EPPENDORF.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2764&quot; title=&quot;EPPENDORF&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/EPPENDORF.jpg&quot; alt=&quot;&quot; width=&quot;450&quot; height=&quot;300&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;最初，香港基因公司作为艾本德的中国总代，对艾本德在中国的发展起了非常重要的作用；直到2007年，艾本德才在上海设立公司，并收回了基因公司的总代理权。艾本德除了移液器，其离心机在中国声名显赫，而其基因扩增仪（PCR）和工作站等在市场上也颇有影响。&lt;/p&gt;
&lt;p&gt;艾本德移液器的主要特点是：其一，设计精巧，如吸/排液按钮与量程调节旋钮分离、量程视窗在移液过程中可见，而且其外观的白色基调也比较清新——可能就是因为其设计过于精巧，目前尚且没有找到仿制的产品；其二，故障率低，如果您在使用过程中避免摔落地面等冲击移液器的现象，其移液器在正常使用情况下不容易出现故障，但一旦出现故障其配件价格也很“高端”；其三，耐腐蚀性强，其中间量程移液器的活塞用陶瓷，大量程移液器活塞用塑料（Research Plus系列的活塞用PEI），基本没有活塞生锈的问题。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;第二梯队&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;第二梯队有两个品牌，其一是美/法吉尔森（GILSON），其二是芬兰雷勃（Finnpipette），这两个品牌在中国市场的占有率都在10％以上。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/GILSON.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2765&quot; title=&quot;GILSON&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/GILSON.jpg&quot; alt=&quot;&quot; width=&quot;300&quot; height=&quot;296&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;吉尔森在中国由香港华运代理，没有办事机构。吉尔森的移液器都是不锈钢活塞，其Pipetman系列移液器自上市以来，享誉数十年，以结实精准著称；但人体工程学元素很少，非常笨重，力气小的人如果长时间使用颇有些痛苦。近几年推出的Pipetman Neo系列和Ultra（液晶显示屏）系列虽然在人体工程学方面略有改进，却在结实耐用方面明显有退步。另外，华运的服务态度尚可，但服务能力有限。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Finnpipette.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2766&quot; title=&quot;Finnpipette&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Finnpipette.jpg&quot; alt=&quot;&quot; width=&quot;400&quot; height=&quot;376&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;雷勃现在是美国热电（Thermo Fisher）的子公司。其彩枪和白枪都是在中国生产的，采用塑料活塞，品质一般，但价格低廉，在中国市场的接受度非常高，与大龙一起是高校学生用的最多的产品。另外，其多道移液器性价比比较高，在中国市场接受度也很高。当然，雷勃这几年新推出了F系列也颇有卖点（如银离子涂层），只是销售量还不大，我没有怎么研究过，对其品质尚不能评论。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;第三梯队&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;第三梯队都是中档产品，包括芬兰百得（BIOHIT）和德国普兰德（BRAND）。这两个品牌在中国市场的占有率都在5％以上。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/BIOHIT.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2767&quot; title=&quot;BIOHIT&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/BIOHIT.jpg&quot; alt=&quot;&quot; width=&quot;315&quot; height=&quot;396&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;百得在欧洲也算得上是高档产品，但在中国却一直都没能体现其高贵的血统。其Proline系列上市已久，性能中庸，现在在国内生产，也是众多国内品牌的仿制对象。而百得的mline系列是较新的产品，有些比较突出的特点，如量程锁定按钮和较轻的吸/排液用力，算得上是高性价比的产品（现在也在国内生产）。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/BRAND.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2768&quot; title=&quot;BRAND&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/BRAND.jpg&quot; alt=&quot;&quot; width=&quot;470&quot; height=&quot;446&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;普兰德在国内成名已久，但一直没有大作为——这可能与其区域代理的销售模式和非主流的产品特点有很大关系。普兰德的移液器用玻璃作为活塞的材质，其Transferpipette系列（灰枪和白枪），外形非常独特，但现在已逐渐退出市场。现在普兰德主推的是其整支灭菌的Transferpipette S系列，性价比有所提高，但外形则中规中矩，缺乏特色了。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;第四梯队&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;其它的所有进口品牌都可以列入第四梯队。其中主要有美国瑞宁（RAININ）、日本立洋（NICHIRYO）、瑞士SOCOREX、瑞士哈美顿（Hamilton）、波兰HTL、美国Labnet和丹麦CAPP等。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/RAININ.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2769&quot; title=&quot;RAININ&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/RAININ.jpg&quot; alt=&quot;&quot; width=&quot;507&quot; height=&quot;600&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;瑞宁现在是瑞士梅特勒－托利多的子公司，在美国是与EPPENDORF平分秋色的大品牌，在中国销售时间短。但最近几年梅特勒－托利多对移液器投入很大，由此瑞宁在中国的发展非常迅速，再加之产品种类齐全、品质优良，进入第二或三梯队指日可待；立洋在中国市场一直不温不火，在中国也是通过代理来销售。立洋在国内卖得最多的是NPX系列，用陶瓷活塞，耐腐蚀但用起来有些费力。其电动移液器看起来比较有特色，远看象个手机，但实用性如何则不得而知；SOCOREX的产品颇有些特点，如拆装非常方便的退吸头器等，但其办事机构在香港，服务的及时性恐难保证；哈美顿在欧美市场有些地位，产品有点象BIOHIT的mline系列；Hamilton的手动移液器有些自己的特色，在美国也有一定的市场占有率，但在中国目前基本没有声音；HTL是仿GILSON的，现在被AXYGEN收购，改名为AXYPET，依托AXYGEN吸头在中国的影响力，接下来的发展有提速的可能；Labnet也是仿制GILSON，与HTL同属一家集团；CAPP的产品有点特色，如金属套柄，也是唯一能提供48道（用于96孔板）和64道（用于384孔板）移液器的厂家。&lt;br /&gt;
（出自：“傻鸟：不专业的专业移液器博客”）&lt;/p&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/639111888/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2763&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</content:encoded><wfw:commentRss>http://www.bioku.net/archives/2763/feed</wfw:commentRss><slash:comments>0</slash:comments><description>在全球范围内，市场占有率超过5％的品牌有五个，分别是EPPENDORF、RAININ、GILSON、FINNPIPETTE和BIOHIT。但具体到中国，情况则有很大不同。 第一梯队 第一梯队非德国艾本德（EPPENDORF）莫属。作为移液器的发明者，艾本德在移液器市场近几年无论是在全球还是国内，都稳居第一。 最初，香港基因公司作为艾本德的中国总代，对艾本德在中国的发展起了非常重要的作用；直到2007年，艾本德才在上海设立公司，并收回了基因公司的总代理权。艾本德除了移液器，其离心机在中国声名显赫，而其基因扩增仪（PCR）和工作站等在市场上也颇有影响。 艾本德移液器的主要特点是：其一，设计精巧，如吸/排液按钮与量程调节旋钮分离、量程视窗在移液过程中可见，而且其外观的白色基调也比较清新——可能就是因为其设计过于精巧，目前尚且没有找到仿制的产品；其二，故障率低，如果您在使用过程中避免摔落地面等冲击移液器的现象，其移液器在正常使用情况下不容易出现故障，但一旦出现故障其配件价格也很“高端”；其三，耐腐蚀性强，其中间量程移液器的活塞用陶瓷，大量程移液器活塞用塑料（Research Plus系列的活塞用PEI），基本没有活塞生锈的问题。 第二梯队 第二梯队有两个品牌，其一是美/法吉尔森（GILSON），其二是芬兰雷勃（Finnpipette），这两个品牌在中国市场的占有率都在10％以上。 吉尔森在中国由香港华运代理，没有办事机构。吉尔森的移液器都是不锈钢活塞，其Pipetman系列移液器自上市以来，享誉数十年，以结实精准著称；但人体工程学元素很少，非常笨重，力气小的人如果长时间使用颇有些痛苦。近几年推出的Pipetman Neo系列和Ultra（液晶显示屏）系列虽然在人体工程学方面略有改进，却在结实耐用方面明显有退步。另外，华运的服务态度尚可，但服务能力有限。 雷勃现在是美国热电（Thermo Fisher）的子公司。其彩枪和白枪都是在中国生产的，采用塑料活塞，品质一般，但价格低廉，在中国市场的接受度非常高，与大龙一起是高校学生用的最多的产品。另外，其多道移液器性价比比较高，在中国市场接受度也很高。当然，雷勃这几年新推出了F系列也颇有卖点（如银离子涂层），只是销售量还不大，我没有怎么研究过，对其品质尚不能评论。 第三梯队 第三梯队都是中档产品，包括芬兰百得（BIOHIT）和德国普兰德（BRAND）。这两个品牌在中国市场的占有率都在5％以上。 百得在欧洲也算得上是高档产品，但在中国却一直都没能体现其高贵的血统。其Proline系列上市已久，性能中庸，现在在国内生产，也是众多国内品牌的仿制对象。而百得的mline系列是较新的产品，有些比较突出的特点，如量程锁定按钮和较轻的吸/排液用力，算得上是高性价比的产品（现在也在国内生产）。 普兰德在国内成名已久，但一直没有大作为——这可能与其区域代理的销售模式和非主流的产品特点有很大关系。普兰德的移液器用玻璃作为活塞的材质，其Transferpipette系列（灰枪和白枪），外形非常独特，但现在已逐渐退出市场。现在普兰德主推的是其整支灭菌的Transferpipette S系列，性价比有所提高，但外形则中规中矩，缺乏特色了。 第四梯队 其它的所有进口品牌都可以列入第四梯队。其中主要有美国瑞宁（RAININ）、日本立洋（NICHIRYO）、瑞士SOCOREX、瑞士哈美顿（Hamilton）、波兰HTL、美国Labnet和丹麦CAPP等。 瑞宁现在是瑞士梅特勒－托利多的子公司，在美国是与EPPENDORF平分秋色的大品牌，在中国销售时间短。但最近几年梅特勒－托利多对移液器投入很大，由此瑞宁在中国的发展非常迅速，再加之产品种类齐全、品质优良，进入第二或三梯队指日可待；立洋在中国市场一直不温不火，在中国也是通过代理来销售。立洋在国内卖得最多的是NPX系列，用陶瓷活塞，耐腐蚀但用起来有些费力。其电动移液器看起来比较有特色，远看象个手机，但实用性如何则不得而知；SOCOREX的产品颇有些特点，如拆装非常方便的退吸头器等，但其办事机构在香港，服务的及时性恐难保证；哈美顿在欧美市场有些地位，产品有点象BIOHIT的mline系列；Hamilton的手动移液器有些自己的特色，在美国也有一定的市场占有率，但在中国目前基本没有声音；HTL是仿GILSON的，现在被AXYGEN收购，改名为AXYPET，依托AXYGEN吸头在中国的影响力，接下来的发展有提速的可能；Labnet也是仿制GILSON，与HTL同属一家集团；CAPP的产品有点特色，如金属套柄，也是唯一能提供48道（用于96孔板）和64道（用于384孔板）移液器的厂家。 （出自：“傻鸟：不专业的专业移液器博客”）&lt;table class=&quot;wumii-related-items&quot; cellspacing=&quot;0&quot; cellpadding=&quot;3&quot; border=&quot;0&quot;  style=&quot;clear: both;&quot;&gt;
    
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                &lt;font size=&quot;-1&quot; color=&quot;#bbbbbb&quot; style=&quot;display: block !important; font-family: arial !important; padding: 5px 0 !important; font-size: 12px !important; color: #bbb !important;&quot;&gt;无觅&lt;/font&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/639111888/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2763&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>品牌</category><category>百得</category><category>艾本德</category><category>GILSON</category><category>吉尔森</category><category>瑞宁</category><category>SOCOREX</category><category>Eppendorf</category><category>NICHIRYO</category><category>Labnet</category><category>波兰</category><category>BIOHIT</category><category>HTL</category><category>瑞士</category><category>Rainin</category><category>中国</category><category>Hamilton</category><category>哈美顿</category><category>进口</category><category>移液器</category><category>丹麦</category><category>美国</category><category>雷勃</category><category>立洋</category><category>普兰德</category><category>购物贴士</category><category>市场</category><category>FINNPIPETTE</category><category>CAPP</category><pubDate>Wed, 16 May 2012 17:53:48 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2763#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2763</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2763</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/639111888/6883460</fs:itemid></item><item><title>中国市场上的移液器品牌（一）国产品牌</title><link>http://www.bioku.net/archives/2759</link><content:encoded>&lt;p&gt;最近有几位朋友希望我能向其推荐移液器的品牌，这着实让我踌躇了很久：首先，最贵的未必最好，最好的也未必最适用。每个人的需求不同，适用的移液器也就不同了；其次，无论我推荐哪一个品牌，都难脱做广告的嫌疑——毕竟我就是卖移液器的——虽然各位读者并不知道我究竟卖哪个品牌。所以，我想还是罗列一下当前中国市场上主要的一些品牌，通过介绍其市场地位和基本特点，以便于读者自行选择。&lt;/p&gt;
&lt;p&gt;在正式开始之前，我首先简单介绍一下行文的顺序：首先是把当前市场上的各品牌按照业内普遍认可的规则分为国产品牌（“假洋鬼子”也归入此类）和进口品牌（强调一点：进口品牌不等于进口产品）；然后再按照市场占有率（销售额，下同）由大到小的顺序来把不同的品牌归入几个梯队，在每一个梯队内的不同品牌的市场占有率没有大小顺序。另外还要声明一点：我所说的市场占有率是基于某些第三方数据以及我的观察和调查，并不能保证完全正确——目前还没有任何一个机构能提供比较权威的数据。&lt;/p&gt;
&lt;p&gt;到此，我们终于可以正式开始了——让我们从简单的开始：国产品牌。&lt;/p&gt;
&lt;p&gt;第一梯队&lt;/p&gt;
&lt;p&gt;第一梯队只有一个品牌：大龙（Dragonmed）。其市场占有率在中国不输于绝大多数进口品牌，并且每年还有大量的出口，在国产品牌中用“孤独求败”来描述似乎也不为过。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Dragonmed.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2760&quot; title=&quot;Dragonmed&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Dragonmed.jpg&quot; alt=&quot;&quot; width=&quot;360&quot; height=&quot;340&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;大龙的技术来源于BIOHIT，所以其产品的外观和构造与BIOHIT的Proline系列没有多少明显的差别。近两年，大龙似乎颇有雄心，生产线丰富了很多，其工厂也从上海搬到了北京。但只有努力摆脱“仿制”的嫌疑，并规范其市场和销售行为，将来才有可能真正成为国产品牌中的“龙头大哥”。&lt;/p&gt;
&lt;p&gt;第二梯队&lt;/p&gt;
&lt;p&gt;第二梯队也只有一个品牌：金花（北京青云）。虽然其市场占有率与大龙远不可相提并论，相对于大多数进口品牌也处于下风，但由于其历史较长，在市场上的影响力亦不容忽略。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/金花-北京青云.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2761&quot; title=&quot;金花 北京青云&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/金花-北京青云.jpg&quot; alt=&quot;&quot; width=&quot;606&quot; height=&quot;453&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;金花仿制了GILSON，其产品的外观和构造与GILSON的Pipetman几乎相同，但看起来要粗糙些。由于金花近几年在市场推广和产品改进方面没有什么动作，其市场占有率有逐渐萎缩的趋势。&lt;/p&gt;
&lt;p&gt;第三梯队&lt;/p&gt;
&lt;p&gt;第三梯队的品牌（客观的说，品牌说不上，只能说是牌子或商标）就多一些了。这些产品的共同特点是质量不高、价格低和市场知名度低。&lt;/p&gt;
&lt;p&gt;我们简单的举几个例子：其一，上海托莫斯（美国TOMOS），虽然看起来是美国品牌，但其企业拥有人是中国人，生产在中国，且其产品完全仿制RAININ，甚至其型号名称都与RAININ相同，偶尔也有冒名顶替的欺骗行为；其二，上海科华，仿制BIOHIT；其三，浙江华威，仿制GILSON；其四，上海荣泰，仿GILSON和BIOHIT。&lt;br /&gt;
（文章来源：“傻鸟：不专业的专业移液器博客”）&lt;/p&gt;
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                &lt;font size=&quot;-1&quot; color=&quot;#bbbbbb&quot; style=&quot;display: block !important; font-family: arial !important; padding: 5px 0 !important; font-size: 12px !important; color: #bbb !important;&quot;&gt;无觅&lt;/font&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638911254/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2759&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</content:encoded><wfw:commentRss>http://www.bioku.net/archives/2759/feed</wfw:commentRss><slash:comments>0</slash:comments><description>最近有几位朋友希望我能向其推荐移液器的品牌，这着实让我踌躇了很久：首先，最贵的未必最好，最好的也未必最适用。每个人的需求不同，适用的移液器也就不同了；其次，无论我推荐哪一个品牌，都难脱做广告的嫌疑——毕竟我就是卖移液器的——虽然各位读者并不知道我究竟卖哪个品牌。所以，我想还是罗列一下当前中国市场上主要的一些品牌，通过介绍其市场地位和基本特点，以便于读者自行选择。 在正式开始之前，我首先简单介绍一下行文的顺序：首先是把当前市场上的各品牌按照业内普遍认可的规则分为国产品牌（“假洋鬼子”也归入此类）和进口品牌（强调一点：进口品牌不等于进口产品）；然后再按照市场占有率（销售额，下同）由大到小的顺序来把不同的品牌归入几个梯队，在每一个梯队内的不同品牌的市场占有率没有大小顺序。另外还要声明一点：我所说的市场占有率是基于某些第三方数据以及我的观察和调查，并不能保证完全正确——目前还没有任何一个机构能提供比较权威的数据。 到此，我们终于可以正式开始了——让我们从简单的开始：国产品牌。 第一梯队 第一梯队只有一个品牌：大龙（Dragonmed）。其市场占有率在中国不输于绝大多数进口品牌，并且每年还有大量的出口，在国产品牌中用“孤独求败”来描述似乎也不为过。 大龙的技术来源于BIOHIT，所以其产品的外观和构造与BIOHIT的Proline系列没有多少明显的差别。近两年，大龙似乎颇有雄心，生产线丰富了很多，其工厂也从上海搬到了北京。但只有努力摆脱“仿制”的嫌疑，并规范其市场和销售行为，将来才有可能真正成为国产品牌中的“龙头大哥”。 第二梯队 第二梯队也只有一个品牌：金花（北京青云）。虽然其市场占有率与大龙远不可相提并论，相对于大多数进口品牌也处于下风，但由于其历史较长，在市场上的影响力亦不容忽略。 金花仿制了GILSON，其产品的外观和构造与GILSON的Pipetman几乎相同，但看起来要粗糙些。由于金花近几年在市场推广和产品改进方面没有什么动作，其市场占有率有逐渐萎缩的趋势。 第三梯队 第三梯队的品牌（客观的说，品牌说不上，只能说是牌子或商标）就多一些了。这些产品的共同特点是质量不高、价格低和市场知名度低。 我们简单的举几个例子：其一，上海托莫斯（美国TOMOS），虽然看起来是美国品牌，但其企业拥有人是中国人，生产在中国，且其产品完全仿制RAININ，甚至其型号名称都与RAININ相同，偶尔也有冒名顶替的欺骗行为；其二，上海科华，仿制BIOHIT；其三，浙江华威，仿制GILSON；其四，上海荣泰，仿GILSON和BIOHIT。 （文章来源：“傻鸟：不专业的专业移液器博客”）&lt;table class=&quot;wumii-related-items&quot; cellspacing=&quot;0&quot; cellpadding=&quot;3&quot; border=&quot;0&quot;  style=&quot;clear: both;&quot;&gt;
    
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638911254/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2759&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>移液器</category><category>品牌</category><category>北京青云</category><category>TOMOS</category><category>国产品牌</category><category>科华</category><category>荣泰</category><category>Dragonmed</category><category>托莫斯</category><category>购物贴士</category><category>金花</category><category>市场</category><category>中国</category><category>大龙</category><pubDate>Wed, 16 May 2012 09:16:46 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2759#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2759</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2759</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638911254/6883460</fs:itemid></item><item><title>罗氏Roche Hygromycin B（潮霉素B）800元特价抢购</title><link>http://www.bioku.net/archives/2751</link><content:encoded>&lt;h1&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;Roche明星产品，冰点折扣&lt;/span&gt;&lt;/strong&gt;&lt;/h1&gt;
&lt;p&gt;&lt;strong&gt;活动规则：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;产品报价：￥1933元&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;促销价格：￥800元&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;时间：2012年5月1日到2012年12月31日&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Hygromycin-B.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2757&quot; title=&quot;Hygromycin B&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/Hygromycin-B.jpg&quot; alt=&quot;&quot; width=&quot;310&quot; height=&quot;310&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;作用机理：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;潮霉素B是由吸水链霉菌(Streptomyces hygroscopicus)产生的一种氨基糖苷类抗生素，通过抑制蛋白质合成能杀死细菌、真菌和高等真核细胞，用于筛选和保持转化（转染）有潮霉素抗性基因的原核和真核细胞。&lt;/p&gt;
&lt;p&gt;潮霉素B与大多数氨基糖苷类抗生素一样，通过中断易位并增加 80S 核糖体上的错误翻译抑制蛋白质的合成。可以稳定核糖体大亚基上的tRNA结合位点，导致空载tRNA不能脱离核糖体，抑制了翻译的继续进行，潮霉素的抑制作用对于原核细胞与真核细胞的核糖体都是有效的。&lt;/p&gt;
&lt;p&gt;由于它所采用的作用模式与 Geneticin®、Blasticidin S 和 Zeocin™ 不同，因而十分适合与其它选择试剂配合用于双选择实验。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;抗性基因：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;潮霉素B磷酸转移酶（Hph）提供对潮霉素的抗性。Hph催化环醇的4—OH基团，产生在体内体外都失去活性的7&quot;-O型磷酸化潮霉素B。&lt;/p&gt;
&lt;p&gt;已经有两种编码Hph的基因。第一种基因是从产生潮霉素B的Streptomyces hygroscopicus中分离出来。第二种基因是Escherichia coli 和Klebsiella pneumoniae中分离出来的一种质粒传染抗性基因。在基因转染实验中使用的大部分潮霉素B载体利用的是E. coli的hph基因。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;产品编号：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;货号：10843555001&lt;/p&gt;
&lt;p&gt;规格：1 g (20 ml)&lt;/p&gt;
&lt;p&gt;英文名称：Hygromycin B&lt;/p&gt;
&lt;p&gt;分子式：C20H37N3O13&lt;/p&gt;
&lt;p&gt;分子量：527.53&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;理化性质：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;溶解性：水溶性&lt;/p&gt;
&lt;p&gt;样品状态：溶液，50 mg/ml，缓冲液为PBS（phosphate-buffered saline），经过0.2 µm孔径滤膜过滤。&lt;/p&gt;
&lt;p&gt;纯度：&amp;gt;80% (HPLC)&lt;/p&gt;
&lt;p&gt;LD50：小鼠（i.v.）6 mg/kg；天竺鼠(i.p.) 13 mg/kg； 大鼠 (i.p.) 63 mg/kg&lt;/p&gt;
&lt;p&gt;工作浓度：细胞培养中为50 - 1,000 µg/ml。哺乳动物细胞培养通常使用的浓度为200 µg/ml。但是，最适浓度必须通过实验确定，这需要根据细胞类型不同而改变。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;供应信息：&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;您可以通过以下方式与我们取得联系并订货：&lt;/p&gt;
&lt;p&gt;TEL:15901191633&lt;/p&gt;
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&lt;p&gt;MSN:xisuan2000@hotmail.com&lt;/p&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638707305/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2751&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>打折促销</category><pubDate>Tue, 15 May 2012 16:39:26 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2751#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2751</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2751</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638707305/6883460</fs:itemid></item><item><title>GE HiTrap预装柱在循环模式蛋白纯化中的应用视频演示</title><link>http://www.bioku.net/archives/2748</link><content:encoded>&lt;p&gt;&lt;embed src=&quot;http://player.youku.com/player.php/sid/XMzI5MzQ4OTA0/v.swf&quot; quality=&quot;high&quot; width=&quot;480&quot; height=&quot;400&quot; align=&quot;middle&quot; allowScriptAccess=&quot;sameDomain&quot; allowFullscreen=&quot;true&quot; type=&quot;application/x-shockwave-flash&quot;&gt;&lt;/embed&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/hitrap.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/hitrap.jpg&quot; alt=&quot;&quot; title=&quot;hitrap&quot; width=&quot;416&quot; height=&quot;352&quot; class=&quot;aligncenter size-full wp-image-2749&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;HiTrap 是通用电气医疗集团生命科学部著名品牌之一，于1991 年上市。HiTrap 柱的预填充模式获得了巨大的成功，为以往费力的色谱柱层析提供便利和节省时间。&lt;/p&gt;
&lt;p&gt;1991 年最初上市的六种色谱柱分别为：HiTrap Protein A HP、HiTrap Protein G HP、HiTrapHeparin HP、HiTrapChelating HP、HiTrapBlue HP 以及HiTrap NHS-actived HP。&lt;/p&gt;
&lt;p&gt;多年以后，诸多成功的色谱柱加入到HiTrap 产品家族，为学术研究者和工艺研发者们提供了较广的选择范围。&lt;/p&gt;
&lt;p&gt;到2011 年2 月，HiTrap 家族将会增至135 种不同的层析柱产品，涵盖了最常用的色谱分析技术-脱盐、亲和、离子交换色谱（IEX）和疏水相互作用色谱法（HIC）。&lt;/p&gt;
&lt;p&gt;此类产品受欢迎程度较高，试想一下，如果我们把2010 年在全球所卖出的所有HiTrap 层析柱首尾相连，则这些层析柱的整体长度约为5000 米左右（3 英里多），这真是太让人吃惊了！&lt;/p&gt;
&lt;p&gt;如需了解与HiTrap 柱有关的更多信息和查看全部产品，请访问&lt;a href=&quot;http://www.gelifesciences.com/hitrap&quot; target=&quot;_blank&quot;&gt;http://www.gelifesciences.com/hitrap&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Convenient and reliable prepacked HiTrap™ columns are designed for fast and easy small-scale preparative protein purifications. HiTrap columns can be connected in series for easy scale-up. All you need is a HiTrap column, and a syringe, pump, or a chromatography system.&lt;/p&gt;
&lt;p&gt;In 1991, six HiTrap columns were launched with the aim to simplify everyday protein purification. At a time when laboratory personnel spent hours, if not days, with the tricky task of packing small-scale columns, HiTrap prepacked columns became an immediate success. HiTrap offered researchers consistent quality, convenience, and significant timesavings.&lt;/p&gt;
&lt;p&gt;Over the years, the HiTrap family has grown to give researchers and process developers one of the widest choices of chromatography media. Today, there are over 130 different columns covering the most commonly used chromatography techniques—desalting, affinity, ion exchange, and hydrophobic interaction. The HiTrap family also includes a range of kits that streamline chromatography media screening and ease technology transfer from the lab bench to pilot scale to large-scale processes.&lt;br /&gt;
Much has happened since the first six columns launched in 1991, but their signature ‘red hat’ and quality remain. The HiTrap format is still as popular as ever, and if all the columns sold in 2010 were connected, they would build a chain almost 5 km (3 miles) long!&lt;br /&gt;
 Product Description&lt;/p&gt;
&lt;p&gt;HiTrap Columns are available in 1-ml and 5-ml sizes and are made of biocompatible polypropylene. The columns can be directly coupled to ÄKTA design systems without the need for connectors. They can also be used singly or connected in series for easy scale up together with a syringe, peristaltic pump, or chromatography system. Each pack includes instructions and connectors for coupling the columns to many different systems.&lt;/p&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326051/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2748&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>循环模式</category><category>recirculation mode</category><category>公司产品</category><category>演示</category><category>recirculation</category><category>视频</category><category>HiTrap</category><category>预装柱</category><category>蛋白纯化</category><category>GE</category><pubDate>Mon, 14 May 2012 21:19:01 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2748#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2748</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2748</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638326051/6883460</fs:itemid></item><item><title>GE HiTrap预装柱密封操作视频演示</title><link>http://www.bioku.net/archives/2744</link><content:encoded>&lt;p&gt;&lt;object width=&quot;480&quot; height=&quot;400&quot; classid=&quot;clsid:d27cdb6e-ae6d-11cf-96b8-444553540000&quot; codebase=&quot;http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0&quot;&gt;&lt;param name=&quot;src&quot; value=&quot;http://player.youku.com/player.php/sid/XMzI5MzQ4MzU2/v.swf&quot; /&gt;&lt;param name=&quot;quality&quot; value=&quot;high&quot; /&gt;&lt;param name=&quot;allowscriptaccess&quot; value=&quot;sameDomain&quot; /&gt;&lt;param name=&quot;allowfullscreen&quot; value=&quot;true&quot; /&gt;&lt;embed width=&quot;480&quot; height=&quot;400&quot; type=&quot;application/x-shockwave-flash&quot; src=&quot;http://player.youku.com/player.php/sid/XMzI5MzQ4MzU2/v.swf&quot; quality=&quot;high&quot; allowscriptaccess=&quot;sameDomain&quot; allowfullscreen=&quot;true&quot; /&gt;&lt;/object&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/USMM-86MKE2-1331045240346.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2745&quot; title=&quot;USMM-86MKE2-1331045240346&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/USMM-86MKE2-1331045240346.jpg&quot; alt=&quot;&quot; width=&quot;500&quot; height=&quot;333&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;HiTrap 是通用电气医疗集团生命科学部著名品牌之一，于1991 年上市。HiTrap 柱的预填充模式获得了巨大的成功，为以往费力的色谱柱层析提供便利和节省时间。&lt;/p&gt;
&lt;p&gt;1991 年最初上市的六种色谱柱分别为：HiTrap Protein A HP、HiTrap Protein G HP、HiTrapHeparin HP、HiTrapChelating HP、HiTrapBlue HP 以及HiTrap NHS-actived HP。&lt;/p&gt;
&lt;p&gt;多年以后，诸多成功的色谱柱加入到HiTrap 产品家族，为学术研究者和工艺研发者们提供了较广的选择范围。&lt;/p&gt;
&lt;p&gt;到2011 年2 月，HiTrap 家族将会增至135 种不同的层析柱产品，涵盖了最常用的色谱分析技术-脱盐、亲和、离子交换色谱（IEX）和疏水相互作用色谱法（HIC）。&lt;/p&gt;
&lt;p&gt;此类产品受欢迎程度较高，试想一下，如果我们把2010 年在全球所卖出的所有HiTrap 层析柱首尾相连，则这些层析柱的整体长度约为5000 米左右（3 英里多），这真是太让人吃惊了！&lt;/p&gt;
&lt;p&gt;如需了解与HiTrap 柱有关的更多信息和查看全部产品，请访问&lt;a href=&quot;http://www.gelifesciences.com/hitrap&quot; target=&quot;_blank&quot;&gt;http://www.gelifesciences.com/hitrap&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Convenient and reliable prepacked HiTrap™ columns are designed for fast and easy small-scale preparative protein purifications. HiTrap columns can be connected in series for easy scale-up. All you need is a HiTrap column, and a syringe, pump, or a chromatography system.&lt;/p&gt;
&lt;p&gt;In 1991, six HiTrap columns were launched with the aim to simplify everyday protein purification. At a time when laboratory personnel spent hours, if not days, with the tricky task of packing small-scale columns, HiTrap prepacked columns became an immediate success. HiTrap offered researchers consistent quality, convenience, and significant timesavings.&lt;/p&gt;
&lt;p&gt;Over the years, the HiTrap family has grown to give researchers and process developers one of the widest choices of chromatography media. Today, there are over 130 different columns covering the most commonly used chromatography techniques—desalting, affinity, ion exchange, and hydrophobic interaction. The HiTrap family also includes a range of kits that streamline chromatography media screening and ease technology transfer from the lab bench to pilot scale to large-scale processes.&lt;br /&gt;
Much has happened since the first six columns launched in 1991, but their signature ‘red hat’ and quality remain. The HiTrap format is still as popular as ever, and if all the columns sold in 2010 were connected, they would build a chain almost 5 km (3 miles) long!&lt;br /&gt;
Product Description&lt;/p&gt;
&lt;p&gt;HiTrap Columns are available in 1-ml and 5-ml sizes and are made of biocompatible polypropylene. The columns can be directly coupled to ÄKTA design systems without the need for connectors. They can also be used singly or connected in series for easy scale up together with a syringe, peristaltic pump, or chromatography system. Each pack includes instructions and connectors for coupling the columns to many different systems.&lt;/p&gt;
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                &lt;font size=&quot;-1&quot; color=&quot;#bbbbbb&quot; style=&quot;display: block !important; font-family: arial !important; padding: 5px 0 !important; font-size: 12px !important; color: #bbb !important;&quot;&gt;无觅&lt;/font&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326052/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2744&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>公司产品</category><category>演示</category><category>视频</category><category>Sealing</category><category>HiTrap</category><category>密封</category><category>预装柱</category><category>GE</category><pubDate>Mon, 14 May 2012 21:09:12 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2744#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2744</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2744</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638326052/6883460</fs:itemid></item><item><title>GE HiTrap预装柱串联视频演示</title><link>http://www.bioku.net/archives/2741</link><content:encoded>&lt;p&gt;&lt;object width=&quot;480&quot; height=&quot;400&quot; classid=&quot;clsid:d27cdb6e-ae6d-11cf-96b8-444553540000&quot; codebase=&quot;http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0&quot;&gt;&lt;param name=&quot;src&quot; value=&quot;http://player.youku.com/player.php/sid/XMzI5MzQ4MTEy/v.swf&quot; /&gt;&lt;param name=&quot;quality&quot; value=&quot;high&quot; /&gt;&lt;param name=&quot;allowscriptaccess&quot; value=&quot;sameDomain&quot; /&gt;&lt;param name=&quot;allowfullscreen&quot; value=&quot;true&quot; /&gt;&lt;embed width=&quot;480&quot; height=&quot;400&quot; type=&quot;application/x-shockwave-flash&quot; src=&quot;http://player.youku.com/player.php/sid/XMzI5MzQ4MTEy/v.swf&quot; quality=&quot;high&quot; allowscriptaccess=&quot;sameDomain&quot; allowfullscreen=&quot;true&quot; /&gt;&lt;/object&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/USMM-86GHLP-1331038476695.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/USMM-86GHLP-1331038476695.jpg&quot; alt=&quot;&quot; title=&quot;USMM-86GHLP-1331038476695&quot; width=&quot;500&quot; height=&quot;333&quot; class=&quot;aligncenter size-full wp-image-2742&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;HiTrap 是通用电气医疗集团生命科学部著名品牌之一，于1991 年上市。HiTrap 柱的预填充模式获得了巨大的成功，为以往费力的色谱柱层析提供便利和节省时间。&lt;/p&gt;
&lt;p&gt;1991 年最初上市的六种色谱柱分别为：HiTrap Protein A HP、HiTrap Protein G HP、HiTrapHeparin HP、HiTrapChelating HP、HiTrapBlue HP 以及HiTrap NHS-actived HP。&lt;/p&gt;
&lt;p&gt;多年以后，诸多成功的色谱柱加入到HiTrap 产品家族，为学术研究者和工艺研发者们提供了较广的选择范围。&lt;/p&gt;
&lt;p&gt;到2011 年2 月，HiTrap 家族将会增至135 种不同的层析柱产品，涵盖了最常用的色谱分析技术-脱盐、亲和、离子交换色谱（IEX）和疏水相互作用色谱法（HIC）。&lt;/p&gt;
&lt;p&gt;此类产品受欢迎程度较高，试想一下，如果我们把2010 年在全球所卖出的所有HiTrap 层析柱首尾相连，则这些层析柱的整体长度约为5000 米左右（3 英里多），这真是太让人吃惊了！&lt;/p&gt;
&lt;p&gt;如需了解与HiTrap 柱有关的更多信息和查看全部产品，请访问&lt;a href=&quot;http://www.gelifesciences.com/hitrap&quot; target=&quot;_blank&quot;&gt;http://www.gelifesciences.com/hitrap&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Convenient and reliable prepacked HiTrap™ columns are designed for fast and easy small-scale preparative protein purifications. HiTrap columns can be connected in series for easy scale-up. All you need is a HiTrap column, and a syringe, pump, or a chromatography system.&lt;/p&gt;
&lt;p&gt;In 1991, six HiTrap columns were launched with the aim to simplify everyday protein purification. At a time when laboratory personnel spent hours, if not days, with the tricky task of packing small-scale columns, HiTrap prepacked columns became an immediate success. HiTrap offered researchers consistent quality, convenience, and significant timesavings.&lt;/p&gt;
&lt;p&gt;Over the years, the HiTrap family has grown to give researchers and process developers one of the widest choices of chromatography media. Today, there are over 130 different columns covering the most commonly used chromatography techniques—desalting, affinity, ion exchange, and hydrophobic interaction. The HiTrap family also includes a range of kits that streamline chromatography media screening and ease technology transfer from the lab bench to pilot scale to large-scale processes.&lt;br /&gt;
Much has happened since the first six columns launched in 1991, but their signature ‘red hat’ and quality remain. The HiTrap format is still as popular as ever, and if all the columns sold in 2010 were connected, they would build a chain almost 5 km (3 miles) long!&lt;br /&gt;
 Product Description&lt;/p&gt;
&lt;p&gt;HiTrap Columns are available in 1-ml and 5-ml sizes and are made of biocompatible polypropylene. The columns can be directly coupled to ÄKTA design systems without the need for connectors. They can also be used singly or connected in series for easy scale up together with a syringe, peristaltic pump, or chromatography system. Each pack includes instructions and connectors for coupling the columns to many different systems.&lt;/p&gt;
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                &lt;font size=&quot;-1&quot; color=&quot;#bbbbbb&quot; style=&quot;display: block !important; font-family: arial !important; padding: 5px 0 !important; font-size: 12px !important; color: #bbb !important;&quot;&gt;无觅&lt;/font&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326053/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2741&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>串联</category><category>公司产品</category><category>演示</category><category>Protein Purification</category><category>视频</category><category>HiTrap</category><category>预装柱</category><category>chromatography</category><category>GE</category><pubDate>Mon, 14 May 2012 20:53:56 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2741#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2741</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2741</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638326053/6883460</fs:itemid></item><item><title>GE医疗集团生命科学部完成对Xcellerex, Inc.的收购</title><link>http://www.bioku.net/archives/2712</link><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/ge.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2713&quot; title=&quot;ge&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/ge.jpg&quot; alt=&quot;&quot; width=&quot;790&quot; height=&quot;815&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;英格兰CHALFONT ST GILES--(美国商业资讯)--通用电气(NYSE: GE)旗下的医疗保健业务部门GE医疗集团 (GE Healthcare)今日宣布已完成对XcellerEX， Inc.的收购，Xcellerex是一家为快速增长的生物制药行业提供创新生产技术的供应商。&lt;/p&gt;
&lt;p&gt;此次收购扩大了GE医疗集团为生物制药生产提供技术和服务的能力，生物制药生产是该公司增长的关键领域，如重组蛋白、抗体和疫苗的生产。双方公司间的强大战略契合与在产品开发和营销方面的扩大能力相结合，将通过产品和服务的互补而为客户提供显著效益。&lt;/p&gt;
&lt;p&gt;GE医疗集团生命科学部生物技术副总裁兼首席执行官Nigel Darby博士就此次收购的完成评论道：&quot;Xcellerex在生物制药生产技术方面的专长和声誉与我们的业务极为契合。GE和Xcellerex拥有共同的愿景，整合式作业可帮助客户优化其自始至终生产过程中的每一个阶段，可望提高生产的灵活性，而且在缩短产品进入市场时间的同时，还具有提供更高成品产量的潜能。我们相信，两家公司技术的结合将为我们的业内客户带来巨大利益。&quot;&lt;/p&gt;
&lt;p&gt;如需了解更多有关GE医疗集团生命科学部技术及服务方面的信息，请访问：www.gelifeSCiences.com&lt;/p&gt;
&lt;p&gt;关于GE医疗集团&lt;/p&gt;
&lt;p&gt;GE医疗集团提供变革性的医疗技术和服务，塑造患者护理新时代。我们在医疗成像与信息技术、医学诊断、病人监护系统、药物开发、生物制药生产技术、绩效提升以及绩效解决方案服务方面的广泛专业经验能够帮助客户以更低的成本，为全球更多患者提供更好的医疗保健。此外，我们还与医疗业领军者合作，力图促成全球政策的必要调整，实现向可持续发展的医疗体系的顺利转型。我们着眼于全球，以降低成本、扩大可及范围、提高质量为重点，不断开发创新解决方案。在此过程中，我们的&quot;健康创想&quot;(healthymagination)远景蓝图计划邀请全世界加入我们的行列。GE医疗集团总部位于英国，是通用电气公司（纽约证券交易所：GE）旗下业务部门，年销售额达160亿美元。GE医疗集团员工全力为100多个国家的医护专业人员及患者服务。如需了解GE医疗集团的更多信息，请访问我们的网站：www.gehealthcare.com。&lt;/p&gt;
&lt;p&gt;关于Xcellerex， Inc.&lt;/p&gt;
&lt;p&gt;Xcellerex商业化统包生物制造解决方案，这些解决方案变革生产医用蛋白（包括生物仿制药和疫苗）的速度和经济性。公司的FleXFactory®是基于一次性使用技术、先进加工自动化和紧凑洁净室结构的完全模块化的轻便生产链。&lt;/p&gt;
&lt;p&gt;FlexFactory能够更加迅速地配置GMP生产能力，而且与传统设施相比，极大地降低了成本。在合作伙伴对其新的FlexFactory进行性能验证期间，Xcellerex通过其BridgeSourcinGTM服务，为合作伙伴生产生物分子。当合作伙伴的设施准备就绪后，Xcellerex即开展其TransPlantTM过程，对合作伙伴自己的FlexFactory进行安装、验证并对合作伙伴人员进行培训。这种并行模式既加速了进入临床和商业化生产的进程，又使合作伙伴能够管理与增加生产能力相关的开发和市场风险。&lt;/p&gt;
&lt;p&gt;Xcellerex还通过销售SDR生物反应器、XDM Quad混合器和相关一次性使用组合为其专有的一次性使用技术融资。迄今为止，应用Xcellerex技术，已为临床实验研究生产了超过20种的医用蛋白和疫苗。公司拥有135名员工，2011年的总收入约为5千万美元。如需了解更多信息，请访问公司网站：www.xcellerex.com&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;GE Healthcare to acquire Xcellerex&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;The health care unit of GE today said it will acquire biopharmaceutical company, Xcellerex Inc., a developer manufacturing systems for biotherapeutics and vaccines, for an undisclosed amount.&lt;/p&gt;
&lt;p&gt;The acquisition of Marlborough-based Xcellerex by GE Healthcare, which is based in England, will allow it to expand its capabilities in manufacturing proteins, antibodies and vaccines, GE said in a release today.&lt;/p&gt;
&lt;p&gt;Xcellerex’s production-scale, single-use bioreactor systems are well-suited for GE Healthcare’s products and range of media for cell culture, and will enable the company to help its customers increase their production, according to GE.&lt;/p&gt;
&lt;p&gt;Jefferies &amp;amp; Co. acted as sell-side advisor to Xcellerex in its acquisition by GE Healthcare.&lt;/p&gt;
&lt;p&gt;Xcellerex formed a collaboration deal with Gallus BioPharmaceuticals LLC in May 2011 to help Gallus round out its biologics contract manufacturing with more lab and manufacturing capabilities.&lt;/p&gt;
&lt;p&gt;The acquisition is expected to close in the second quarter 2012.&lt;/p&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326054/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2712&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</content:encoded><wfw:commentRss>http://www.bioku.net/archives/2712/feed</wfw:commentRss><slash:comments>0</slash:comments><description>英格兰CHALFONT ST GILES--(美国商业资讯)--通用电气(NYSE: GE)旗下的医疗保健业务部门GE医疗集团 (GE Healthcare)今日宣布已完成对XcellerEX， Inc.的收购，Xcellerex是一家为快速增长的生物制药行业提供创新生产技术的供应商。 此次收购扩大了GE医疗集团为生物制药生产提供技术和服务的能力，生物制药生产是该公司增长的关键领域，如重组蛋白、抗体和疫苗的生产。双方公司间的强大战略契合与在产品开发和营销方面的扩大能力相结合，将通过产品和服务的互补而为客户提供显著效益。 GE医疗集团生命科学部生物技术副总裁兼首席执行官Nigel Darby博士就此次收购的完成评论道：&quot;Xcellerex在生物制药生产技术方面的专长和声誉与我们的业务极为契合。GE和Xcellerex拥有共同的愿景，整合式作业可帮助客户优化其自始至终生产过程中的每一个阶段，可望提高生产的灵活性，而且在缩短产品进入市场时间的同时，还具有提供更高成品产量的潜能。我们相信，两家公司技术的结合将为我们的业内客户带来巨大利益。&quot; 如需了解更多有关GE医疗集团生命科学部技术及服务方面的信息，请访问：www.gelifeSCiences.com 关于GE医疗集团 GE医疗集团提供变革性的医疗技术和服务，塑造患者护理新时代。我们在医疗成像与信息技术、医学诊断、病人监护系统、药物开发、生物制药生产技术、绩效提升以及绩效解决方案服务方面的广泛专业经验能够帮助客户以更低的成本，为全球更多患者提供更好的医疗保健。此外，我们还与医疗业领军者合作，力图促成全球政策的必要调整，实现向可持续发展的医疗体系的顺利转型。我们着眼于全球，以降低成本、扩大可及范围、提高质量为重点，不断开发创新解决方案。在此过程中，我们的&quot;健康创想&quot;(healthymagination)远景蓝图计划邀请全世界加入我们的行列。GE医疗集团总部位于英国，是通用电气公司（纽约证券交易所：GE）旗下业务部门，年销售额达160亿美元。GE医疗集团员工全力为100多个国家的医护专业人员及患者服务。如需了解GE医疗集团的更多信息，请访问我们的网站：www.gehealthcare.com。 关于Xcellerex， Inc. Xcellerex商业化统包生物制造解决方案，这些解决方案变革生产医用蛋白（包括生物仿制药和疫苗）的速度和经济性。公司的FleXFactory®是基于一次性使用技术、先进加工自动化和紧凑洁净室结构的完全模块化的轻便生产链。 FlexFactory能够更加迅速地配置GMP生产能力，而且与传统设施相比，极大地降低了成本。在合作伙伴对其新的FlexFactory进行性能验证期间，Xcellerex通过其BridgeSourcinGTM服务，为合作伙伴生产生物分子。当合作伙伴的设施准备就绪后，Xcellerex即开展其TransPlantTM过程，对合作伙伴自己的FlexFactory进行安装、验证并对合作伙伴人员进行培训。这种并行模式既加速了进入临床和商业化生产的进程，又使合作伙伴能够管理与增加生产能力相关的开发和市场风险。 Xcellerex还通过销售SDR生物反应器、XDM Quad混合器和相关一次性使用组合为其专有的一次性使用技术融资。迄今为止，应用Xcellerex技术，已为临床实验研究生产了超过20种的医用蛋白和疫苗。公司拥有135名员工，2011年的总收入约为5千万美元。如需了解更多信息，请访问公司网站：www.xcellerex.com GE Healthcare to acquire Xcellerex The health care unit of GE today said it will acquire biopharmaceutical company, Xcellerex Inc., a developer manufacturing systems for biotherapeutics and vaccines, for an undisclosed amount. The acquisition of Marlborough-based [...]&lt;table class=&quot;wumii-related-items&quot; cellspacing=&quot;0&quot; cellpadding=&quot;3&quot; border=&quot;0&quot;  style=&quot;clear: both;&quot;&gt;
    
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            &lt;a style=&quot;text-decoration: none !important;&quot; href=&quot;http://www.wumii.com/widget/relatedItems&quot; target=&quot;_blank&quot; title=&quot;无觅相关文章插件&quot;&gt;
                &lt;font size=&quot;-1&quot; color=&quot;#bbbbbb&quot; style=&quot;display: block !important; font-family: arial !important; padding: 5px 0 !important; font-size: 12px !important; color: #bbb !important;&quot;&gt;无觅&lt;/font&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326054/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2712&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>收购</category><category>生命科学部</category><category>GE医疗集团</category><category>Xcellerex</category><category>产业资讯</category><category>acquire</category><category>GE Healthcare</category><category>GE</category><pubDate>Fri, 11 May 2012 20:57:54 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2712#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2712</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2712</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638326054/6883460</fs:itemid></item><item><title>GE推出新型复合模式层析介质Capto Core 700</title><link>http://www.bioku.net/archives/2707</link><content:encoded>&lt;p&gt;Capto Core 700 设计用于病毒和其它大生物分子的中度纯化和精细纯化步骤。新型的核心微球技术以及复合模式、辛胺配基使Capto Core 700 在一种层析介质（树脂）中具有大小分离以及吸附层析的双重功能。这些特点使 Capto Core 700 成为了疫苗生产中病毒纯化最后阶段典型使用的凝胶过滤（分子筛层析介质）介质的极佳的备方案。凝胶过滤（GF）因其在精细纯化步骤流速低且样品上样量有限常常被视为生产率的瓶颈，而 Capto Core 700 提供的一系列性能优点都超越了凝胶过滤。&lt;br /&gt;
Capto Core 700 的关键性能特点包括：&lt;br /&gt;
 与 GF 相比，高达 100 倍的样品上样量以及明显更高的流速确保了生产效率显著提高&lt;br /&gt;
 具有激活的配基核心以及未激活的壳层的核心微球技术可有效的捕获污染物，同时使目标分子流穿&lt;br /&gt;
 由于穿流层析和稳定的性能，方便的条件优化，可以使用更广泛操作范围，&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;介质的特性 &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;核心微球技术&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Capto Core 700 由激活的配基核心和惰性壳层组成。惰性壳层可以排阻大分子（排阻分子量~M，700000[700kDa]）,阻止其经壳层上的孔进入核心（图 1）。这些大分子在柱穿流中被收集起来同时，较小的杂质会与微球内在配基结合。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/2sq560.tmp_.jpg&quot;&gt;&lt;img class=&quot;aligncenter size-full wp-image-2708&quot; title=&quot;2sq560.tmp&quot; src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/2sq560.tmp_.jpg&quot; alt=&quot;&quot; width=&quot;514&quot; height=&quot;288&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;图 1. 显示带有惰性壳层的微球、壳层上的孔以及激活的配基核心的Capto Core 700 原理示意图。较小的蛋白和污染物（以绿色、黄色和紫色着色）可穿透此核心，目标病毒（红色）以及更大的蛋白则被排除在介质之外并在穿流中收集。&lt;/p&gt;
&lt;p&gt;具有疏水和带正电荷的配基将每个微球的核心功能化，使小到能进入核心的各种污染物的高效复合模式的结合。&lt;/p&gt;
&lt;p&gt;复合模式配基可确保在宽广范围的pH值和盐浓度中与大多数杂质强有力的结合。使用 NaOH（在多数情况下，NaOH作为一种溶剂使用）通过在位清洗（CIP）程序，将结合的杂质从微球上除去。表 1 中总结了 Capto Core 700 的特点。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;大体积上样量的组分离 &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Capto Core 700 的核心微球技术确保了在的高上样量的组份分离。另外，Capto Core 700 可以在更短的保留时间（有时低至 1 min），与 85 µm 大粒径的高流速琼脂糖基质相结合，流速可高达 500 cm/h。短暂的保留时间、高流速以及大体积上样量确保了比传统GF更大的操作范围。更大的操作范围可以高通量生产，使用较小的设备，减少厂房空间。较大的微球尺寸还有助于在高粘度样品纯化期间降低反压。&lt;br /&gt;
Capto Core 700 提供的改善的操作空间为工艺设计提供了更大的自由度。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;稳定的结合性能 &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;为 Capto Core 700 选择的辛胺配基是复合模式配基，在一系列缓冲液中给出了具有极佳结合能力的广泛的操作窗口。这种配基能在磷酸钠和含有高达 1 M NaCl 的 Tris 缓冲液中发挥作用（图4）。举个例子，不建议使用柠檬酸盐缓冲液，因为柠檬酸盐离子可与配基相互作用。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;有效去除 HCP和 DNA&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;大多数 HCP 带有负电荷，pH 值在 7 以上。Capto Core 700 的配基带有正电荷，pKa 低于 10.6，因此推荐 pH 值在7 到 9 之间以确保 HCP 的良好结合。DNA 在一个广泛的 pH 范围内都带有负电荷，因此，DNA 的有效去除对 pH 值的依赖性较低。但建议在 Capto Core 700 步骤之前降低 DNA/RNA 水平，例如，通过阳离子交换步骤的使用或通过 BenzonaseTM核酸内切酶处理。使用 Benzonase 降解 DNA 为小的寡核苷酸片段进入微球的核&lt;br /&gt;
心，在核心中与内在配基结合。Benzonase 也将进入核心进行结合，由此将其从病毒穿流部分除去。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;分子量排阻&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;为了对分子量排阻进行研究，针对一系列不同大小的蛋白确定Capto Core 700的动态载量。研究的蛋白有卵清蛋白（M，45000）、转铁蛋白（M，475000）、甲状腺球蛋白（M，660000）、牛IgM（M大约，900000）。将蛋白样品稀释至1.0和4.0mg/mL之间的最终浓度，上样到预装柱HiScreen Capto Core 700中。&lt;br /&gt;
上样蛋白样品直至分别达到1%和10%的蛋白流穿（图5）。 Capto Core 700能与分子量高达660000的蛋白结合，而例如IgM这样分子量更大的蛋白，会被排阻在微球外，在穿流过程中通过层析柱（图5）。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;在位清洗和消毒&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;为了除去捕获的污染物，维持 Capto Core 700 的捕获能力以便再次使用，需要定期地进行在位清洗（CIP）。建议在每个周期后使用含有 1 M NaOH 的 27%1-丙醇对介质进行有效的在位清洗和消毒。由于配基对很大范围的污染物都有很强的结合能力，对于大多数样品的在位清洗都需要有机溶剂。但这将取决于样品，也有可能使用不含有机溶剂的 CIP 溶液。 在位清洗方案取决于上样的样品和运行条件，因此推荐将所选方案的适用性最优化。 在一项介质寿命研究中，纯卵清蛋白的动态载量在受试的 45 个循环中保持稳定（图 6）。此次研究中，在 10 次循环里间隔运行10 CV 的 MDCK 细胞裂解液污染液和 CIP，每十一循环测试一次动态结合载量。结果清楚的证明了在多次纯化循环中介质的稳定性，这可能提高工艺的经济性。在整个测试过程中，疫苗的回收率和纯度也保持在较高的水平（未展示数据）。&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;快速加工小规模模式的开发&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Capto Core 700 可供在1 mL预装柱HiTrapTM以及4.7 mL预装柱HiScreen使用。在一种有效而稳定的分离方法开发中，HiTrap和HiScreen柱与例如Ä KTATMavant或其它Ä KTA系统的层析系统相配合使用。使用HiScale柱（表2）进一步开发及优化，接着可线性放大规模（实验室使用规模的层析柱详细信息，参阅适用说明）&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;放大生产规模&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Capto Core 700 作为一种大包装介质，有从实验室规模到生产规模的一系列包装可供使用，容量范围从 25mL 至 5L。我们还提供 Capto Core 700 较大包装用于规模层析柱使用（表 2）。 典型的放大规模在保持床高和流速不变的同时， 通过增加柱床直径和流速进行。然而，因为在小柱容量中条件往往最佳，例如动态载量之类的参数在低于最终规模的床高上更佳。保持保留时间和上样常量不变，将能够维持载量和纯度。我们推荐生产规模柱的最大床高为 40 cm（表 2）。&lt;br /&gt;
Capto Core 700 是适用于生物制药大规模生产的 BioProcessTM 介质。这些支持包括了经过确认的生产方法、可靠的长期介质供应以及帮助工艺验证的法规支持文件（RSF）和药监当局提交的证明文件。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;详细请点击下载电子版文档：&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;英文&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;&lt;a href=&quot;https://www.gelifesciences.com/gehcls_images/GELS/Related%20Content/Files/1334667780708/litdoc28998307_20120420110245.pdf&quot; target=&quot;_blank&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;Capto Core 700 Summary&lt;/span&gt;&lt;/a&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;中文&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/nps558.pdf&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;Capto Core 700&lt;/span&gt;&lt;/a&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;Capto Core 700&lt;/p&gt;
&lt;p&gt;Capto Core 700 is designed for intermediate purification and polishing of viruses and other large biomolecules. The novel core bead technology and multimodal, octylamine ligand give Capto Core 700 dual functionality, size exclusion, and binding chromatography in one chromatography medium (resin).&lt;/p&gt;
&lt;p&gt;For intermediate purification and polishing of viruses and other large biomolecules (Mr &amp;gt; 700 000) in flowthrough mode.&lt;br /&gt;
Novel core bead technology allows efficient capture of contaminants while target molecules are collected in the flowthrough.&lt;br /&gt;
Significantly improved productivity and higher flow rates compared with gel filtration methods.&lt;br /&gt;
Straightforward optimization due to flowthrough chromatography and robust performance.&lt;br /&gt;
Convenient small-scale purification, process development, and scale-up using prepacked HiTrap and HiScreen columns.&lt;br /&gt;
Capto Core 700 is composed of a ligand-activated core and inactive shell. The inactive shell excludes large molecules (cut off ~ Mr 700 000 [700 kDa]) from entering the core through the pores of the shell. These larger molecules are collected in the column flowthrough while smaller impurities bind to the internalized ligands. The core of each bead is functionalized with ligands that are both hydrophobic and positively charged, resulting in a highly efficient multimodal binding of various contaminants small enough to enter the core. The multimodal ligands ensure strong binding with most impurities over a wide range of pH and salt concentrations. Bound impurities are removed from the beads by cleaning-in-place (CIP) procedures using NaOH and in most cases, a solvent.&lt;/p&gt;
&lt;p&gt;Capto Core 700 is available in various pack sizes for packing columns and in convenient, prepacked 1 ml HiTrap and 4.7 ml prepacked HiScreen formats. HiTrap and HiScreen columns can be connected in series for increased capacity and are convenient to use when developing an efficient and robust separation method.&lt;/p&gt;
&lt;h3&gt;Capto Core 700 — Technical Specifications&lt;/h3&gt;
&lt;table summary=&quot;Capto Core 700&quot;&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;BioProcess Media&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;Yes&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Ligand&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;Octylamine&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Average Particle Size&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;75 µm (d&lt;sub&gt;50V&lt;/sub&gt;)1)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Matrix&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;Highly cross-linked agarose&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Binding Capacity/ml Chromatography Medium&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;~ 13 mg ovalbumin2)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Ionic Capacity&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;40-85 µmol/ml (Cl&lt;sup&gt;-&lt;/sup&gt;)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;pH stability Working Range&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;2-143)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;pH stability Cleaning-in-Place (CIP)&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;3-134)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Flow Velocity&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;&amp;lt;500 cm/h5)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Storage Conditions&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;4 to 30°C, 20% Ethanol&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Chemical Stability&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;All commonly used aqueous buffers,1 M sodium hydroxide6, 6 M guanidine hydrochloride, 30% isopropanol, and 70% ethanol6)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Avoid Using&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;Oxidizing agents, citrate buffers7)&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td width=&quot;25%&quot;&gt;Molecular Weight [MW] Cut-Off&lt;/td&gt;
&lt;td width=&quot;75%&quot;&gt;M&lt;sub&gt;r&lt;/sub&gt; ~700 000&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;tfoot&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;1)d50V is the median particle size of the cumulative volume distribution.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;2)Dynamic binding capacities were measured at 10% breakthrough with a residence time of 3 min (1.6 ml/min = 200 cm/h) in HiScreen columns. Buffer: 20 mM Tris-HCl, 150 mM NaCl, pH 7.5.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;3)pH interval where the medium can be operated without significant change in function.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;4)pH interval where the medium can be subjected to, for cleaning- or sanitization-in-place.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;5)Water at room temperature. For viscous buffers and samples - the flow velocity must be optimized and starting with a low flow rate is recommended in order not to exceed pressure limits.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;6)No significant change in ionic binding capacity and carbon content after one week storage in 1 M NaOH at 40°C.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td colspan=&quot;2&quot;&gt;7)Citrate ions are trivalent anions and can interact with the positively charged octylamine ligand on Capto Core 700.&lt;/td&gt;
&lt;/tr&gt;
&lt;/tfoot&gt;
&lt;/table&gt;
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&lt;/table&gt;&lt;img src=&quot;http://www1.feedsky.com/t1/638326055/Bioku/feedsky/s.gif?r=http://www.bioku.net/archives/2707&quot; border=&quot;0&quot; height=&quot;0&quot; width=&quot;0&quot; style=&quot;position:absolute&quot; /&gt;</description><category>填料</category><category>复合模式</category><category>层析介质</category><category>新产品</category><category>Capto</category><category>Core 700</category><category>Capto Core 700</category><category>GE</category><pubDate>Fri, 11 May 2012 18:21:17 +0800</pubDate><author>生物库</author><comments>http://www.bioku.net/archives/2707#comments</comments><guid isPermaLink="false">http://www.bioku.net/?p=2707</guid><dc:creator>生物库</dc:creator><fs:srclink>http://www.bioku.net/archives/2707</fs:srclink><fs:srcfeed>http://www.bioku.net/feed</fs:srcfeed><fs:itemid>feedsky/Bioku/~8765360/638326055/6883460</fs:itemid></item><item><title>微距拍蚂蚁搬运种子场景：力量惊人似杂耍</title><link>http://www.bioku.net/archives/2699</link><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/1.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/1.jpg&quot; alt=&quot;&quot; title=&quot;1&quot; width=&quot;590&quot; height=&quot;477&quot; class=&quot;aligncenter size-full wp-image-2700&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
　　&lt;br /&gt;
展示其强大的力量：小蚂蚁们通过将巨大的种子高高举在头上在合欢树上搬运并完美地保持平衡来展现它们强大的力量。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/2.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/2.jpg&quot; alt=&quot;&quot; title=&quot;2&quot; width=&quot;590&quot; height=&quot;504&quot; class=&quot;aligncenter size-full wp-image-2701&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
来自西爪哇岛的摄影师Eko Adiyanto是这些令人惊奇照片的作者，他用一套特制的装置来尽可能地靠近这些让人叹为观止的小生物。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/3.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/3.jpg&quot; alt=&quot;&quot; title=&quot;3&quot; width=&quot;405&quot; height=&quot;590&quot; class=&quot;aligncenter size-full wp-image-2702&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
摄影师Eko表示，拍摄出来的结果相当令人惊奇，特别是那些红色蚂蚁在镜头前用人眼无法看到的方式表演杂耍的时候。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/4.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/4.jpg&quot; alt=&quot;&quot; title=&quot;4&quot; width=&quot;590&quot; height=&quot;590&quot; class=&quot;aligncenter size-full wp-image-2703&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
这些精彩瞬间还包括它们如何杂耍般地保持钻石队形相互钩着附着于一颗细小的植物上。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/5.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/5.jpg&quot; alt=&quot;&quot; title=&quot;5&quot; width=&quot;452&quot; height=&quot;590&quot; class=&quot;aligncenter size-full wp-image-2704&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
齐心协力：两只蚂蚁共同搬运一颗种子。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.bioku.net/wp-content/uploads/2012/05/6.jpg&quot;&gt;&lt;img src=&quot;http://www.bioku.net/wp-content/uploads/2012/05/6.jpg&quot; alt=&quot;&quot; title=&quot;6&quot; width=&quot;590&quot; height=&quot;419&quot; class=&quot;aligncenter size-full wp-image-2705&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
现年40岁的摄影师Eko用一种特殊的微距摄影技术来靠近抓拍这些神奇的生物。&lt;br /&gt;
　　&lt;br /&gt;
据国外媒体报道，一位来自于印度尼西亚西爪哇岛的摄影师Eko Adiyanto用他独特的微距摄影技术拍摄了一组极为精细地记录蚂蚁搬运种子的照片，用肉眼看不到的角度向人们展示了小蚂蚁们令人叹为观止的神奇力量与平衡性。&lt;/p&gt;
&lt;p&gt;　　很少有人通过这样的方式将蚂蚁记录在相片上来展示它们令人汗颜的力量与平衡性。这些梦幻的微距摄影照片甚至可以清晰地展现每一只蚂蚁的细节动作，就好像蚂蚁们在镜头前表演一样。这些令人称奇的画面不仅记录了小蚂蚁们是怎样将巨大的合欢树种子高高举在头上保持平衡，还展现了它们如何杂耍般地保持钻石队形相互钩着附着于一颗细小的植物上。&lt;/p&gt;
&lt;p&gt;　　来自西爪哇的摄影师Eko Adiyanto是这些令人惊奇照片的作者，他用一套特制的装置来尽可能地靠近这些让人叹为观止的小生物。在一些特殊场景下，它们甚至可以在将食物搬运回巢穴的过程中做出一些“反重力”的行为。&lt;/p&gt;
&lt;p&gt;　　两年40岁的摄影师Eko Adiyanto使用了一套特殊的微距摄影技术去拍摄这些神奇的生物。他介绍说：“这些蚂蚁实在是太小了，能用这种方式看到它们细小的身体里面竟然蕴藏着如此巨大的力量真是一件奇妙的事情。在我的房子周围分布着许多的小昆虫，它们非常有趣，我喜欢用微距摄影来寻找到更多关于它们生活习性的东西。“&lt;/p&gt;
&lt;p&gt;　　摄影师Eko Adiyanto表示，拍摄出来的结果相当令人惊奇，特别是那些红色蚂蚁在镜头前用人眼无法看到的方式表演杂耍的时候。 “拍摄过程实在是艰难，但是能得到这样的结果却是相当值得。当我成功捕捉到一些令人激动的瞬间的时候，无论多么困难我都会感到相当满足。”他说，要用这种角度来拍摄这些小的几乎看不见的蚂蚁只能通过这种特殊的微距摄影方式，这个过程需要极大的耐性与人性，并且在相当长一段时间要保持高度的注意力。&lt;/p&gt;
&lt;p&gt;　　这种红色的小蚂蚁群居在蚁巢中，在它们的社会中各自扮演着自己的角色，如工蚁或者蚁后。蚁巢对于它们来说是非常重要的，以至于它们会不惜以生命为代价来保护蚁巢。在世界范围内，科学家已经发现了超过11000种蚂蚁，但是人们最常见最普遍的便是这种红色蚂蚁。(彬彬)&lt;/p&gt;
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