Fluorescence “turn on-off” detection of heparin and heparinase I based on the near-infrared emission polyethyleneimine capped Ag₂S quantum dots

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• 作者：Dan Yan^bAuthor Vitae ; Yu He^a ; ^b ; ^{heyu@hubu.edu.cn}Author Vitae ; Yili Ge^a ; ^bAuthor Vitae ; Gongwu Song^a ; ^bAuthor Vitae
• 关键词：Near infrared emission ; Ag2S QDs ; Fluorescence &ldquo ; turn on-off&rdquo ; Heparin ; Steady-state kinetic
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：240
• 期：Complete
• 页码：863-869
• 全文大小：1774 K
• 卷排序：240

文摘

An effective fluorescence “turn on-off” method based on PEI-Ag2S QDs has been constructed. The mechanism relies on aggregation-induced emission enhancement (AIEE) and hydrolysis. Steady-state kinetic analysis was explored to explain that the hydrolysis of heparinase I.