Fluorescence detection of alkaline phosphatase activity with β-cyclodextrin-modified quantum dots.
نویسندگان
چکیده
An alkaline phosphatase activity detection system was constructed based on the different quenching effect of the enzyme substrate and product on the β-CD-functionalized CdTe QDs.
منابع مشابه
Cyclodextrin capped CdTe quantum dots as versatile fluorescence sensors for nitrophenol isomers.
Cyclodextrin (CD) capped CdTe quantum dots (QDs) were prepared with uniform dimension (average diameter ∼5 nm) and high quantum yield (ca. 65%). By taking advantage of the inclusion complexation of CD, β-CD-CdTe QDs exhibited strong fluorescence quenching in a linear relationship with the concentration of o-, m- and p-nitrophenol in the range of 20-100 μM. The detection limit reached 0.05 μM fo...
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عنوان ژورنال:
- Chemical communications
دوره 46 38 شماره
صفحات -
تاریخ انتشار 2010