Study on Spectra of CdTe Quantum Dots Labeling Ferritin

Abstract

Abstract: The ferritin can be labeled with CdTe quantum dots synthesized in aqueous solution. The changes of emission spectra and lifetime of CdTe quantum dots before and after labeling ferritin were studied by UV and fluorescence spectrophotometries. The emission lifetime of CdTe quantum dots bound to ferritin remained unchanged, but the PL intensity was decreased with increasing amount of ferritin. The fact that the changes of emission intensity and luminescence lifetime are due to the binding of CdTe and ferritin is further confirmed through experiments by changing pH values and ferritin amount of test solution.

Key words: ferritin, quantum dot, spectra

ZHUANG Hong, ZHANG Mei, KONG Xiang-Gui, LIU Jing-Bo. Study on Spectra of CdTe Quantum Dots Labeling Ferritin[J]. FOOD SCIENCE, 2007, 28(11): 37-39.

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Study on Spectra of CdTe Quantum Dots Labeling Ferritin

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