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The bioconjugation of fluorescent quantum dots (QDs) and purification of QDs bioconjugates are of vital importance in bioapplications. In this paper, we systematically investigated the purification efficiency of QDs bioconjugates and their stability during separation process by using size exclusion chromatography (SEC) technique, fluorescence spectroscopy, and fluorescence correlation spectroscopy...
In this paper, we report a new strategy for detection of hydrogen peroxide and glucose using quantum dot (QD)-based fluorescence resonance energy transfer (FRET) and tyramide reaction. The principle of FRET is based on highly sensitive reaction of a carbocyanine dye (Cy5) labeled tyramide and hydrogen peroxide catalyzed by horseradish peroxidase (HRP), and the fluorescence spectrum of QDs (EX ...
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