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pubmed-article:20006085pubmed:abstractTextTo our knowledge, we report the first fluorescence aptasensor for detecting human neutrophil elastase (HNE) in homogeneous solution. The biosensor contains a short DNA scrambled sequence strand (SS) complementary to part of the aptamer sequence or the loop of molecular beacon (MB). The aptamer-HNE recognition event involves competition between the molecular beacon and loose HNE aptamer for the binding the short DNA strand. The new biosensor can detect as little as 0.34nM of HNE, and the response is linear in the tested concentration range of 0.34-68nM with the detection limit of 47pM.lld:pubmed
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pubmed-article:20006085pubmed:authorpubmed-author:Guo-LiShenSlld:pubmed
pubmed-article:20006085pubmed:authorpubmed-author:Ru-QinYuYlld:pubmed
pubmed-article:20006085pubmed:authorpubmed-author:WuZai-ShengZSlld:pubmed
pubmed-article:20006085pubmed:authorpubmed-author:ZhangSong-Bai...lld:pubmed
pubmed-article:20006085pubmed:authorpubmed-author:HeJing-LinJLlld:pubmed
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pubmed-article:20006085pubmed:articleTitleFluorescence aptasensor based on competitive-binding for human neutrophil elastase detection.lld:pubmed
pubmed-article:20006085pubmed:affiliationState Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.lld:pubmed
pubmed-article:20006085pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:20006085pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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