Luminescent properties of water-soluble denatured bovine serum albumin-coated CdTe quantum dots

Article Abstract:

The denatured bovine serum albumin (BSA) is used to chemically modify the surface of CdTe quantum dots (QDs) and study the effects of surface modification and storage time on the optical properties of the resulting QDs. The analysis has provided a new approach of preparing stable water-soluble QDs with high photoluminescence quantum yield (PL QY) and controllable luminescent colors for biological labeling applications.

Biological Product (except Diagnostic) Manufacturing, Biological products exc. diagnostic, Blood Albumin, Serum albumin, Affinity labeling

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Study of fluorescence quenching and dialysis process of CdTe quantum dots, using ensemble techniques and fluorescence correlation spectroscopy

Article Abstract:

Research indicated that some ensemble techniques and fluorescence correlation spectroscopy (FCS) were used to study the fluorescence quenching and dialysis process of CdTe quantum dots (QDs). The findings revealed that when some heavy metal ions, such as silver ions ([Ag.sup.+]), quench QDs, the free ([Ag.sup.+]) ions bind with bare Te atoms and form the AgTe structure on the surface.

Analysis, Dialysis, Dialysis (Chemical process), Luminescence, Fluorescence spectroscopy, Structure

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Characterization of polypyrrole-CdSe/CdTe nanocomposite films prepared with an all electrochemical deposition process

Article Abstract:

An all electrochemical deposition process is developed to prepare the polypyrrole nanocomposite films containing multiple layers of CdSe and CdTe. A top covering layer of polypyrrole not only further smoothed the surface but also further boosted the photoluminescence intensity of the nanocomposite film because of the enhanced radiative electron-hole recombination.

Observations, Electrochemistry, Photoluminescence

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