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taozhikai

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[资源] JACS最新超分子酶纳米颗粒生物传感器

ABSTRACT: Rapid and sensitive detection of pathogens is a key requirement for both environmental and clinicalsettings. We report here a colorimetric enzymenanoparticleconjugate system for detection of microbial contamination.In this approach, cationic gold nanoparticles (NPs)featuring quaternary amine headgroups are electrostaticallybound to an enzyme [β-galactosidase (β-Gal)], inhibitingenzyme activity. Analyte bacteria bind to the NP, whichreleases the β-Gal and restores its activity, providing anenzyme-amplified colorimetric readout of the binding event.Using this strategy, we have been able to quantify bacteria at con- centrations of 1  102 bacteria/mL in solution and 1  104 bacteria/mL in a field-friendly test strip format.[ Last edited by taozhikai on 2011-7-10 at 22:48 ]
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dayudongdong

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★★★★★ 五星级,优秀推荐

顶一下,感谢分享!好贴
36楼2012-01-06 13:49:13
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ckm840529

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★★★★★ 五星级,优秀推荐

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dengyfd(金币+1): 感谢你的回帖交流 2011-07-26 21:10:31
我美国实验室同学的工作,Oscar是个牛人,敬佩,谢谢你的分享。
3楼2011-06-08 19:36:30
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taozhikai

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帖子真精彩!
已经收录到淘贴专辑《生物材料》
14楼2011-08-31 10:58:23
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2011-06-08 14:10   回复  
五星好评  
2011-06-08 19:54   回复  
五星好评  
cdywq5楼
2011-06-10 12:33   回复  
五星好评  顶一下,感谢分享!
2011-06-10 20:20   回复  
五星好评  顶一下,感谢分享!
2011-07-10 22:31   回复  
五星好评  顶一下,感谢分享!
wscxz8楼
2011-07-11 10:46   回复  
五星好评  顶一下,感谢分享!
yingzhuo10楼
2011-07-14 21:54   回复  
五星好评  顶一下,感谢分享!
2011-07-25 16:29   回复  
五星好评  顶一下,感谢分享!
applysue12楼
2011-07-26 19:25   回复  
三星好评  顶一下,感谢分享!
egaoxy13楼
2011-07-30 23:28   回复  
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