| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 28650 | Journal of Photochemistry and Photobiology A: Chemistry | 2008 | 6 Pages |
Abstract
Luminescent water-soluble CdTe quantum dots (QDs) capped with different thiol carboxylic acids were synthesized in aqueous medium and then cross linked to bovine serum albumin (BSA) with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC). Enhancement of fluorescence emission intensity occurred for QDs in the presence of bovine serum albumin (BSA, mixed or linked) signifying inhibition of non-radiative recombination of the surface vacancies. Fluorescence studies reveal a positive deviation behaviour suggesting the occurrence of static and dynamic mechanisms of quenching together which was accounted for by the modified Stern–Volmer equation.
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Authors
Mopelola Idowu, Emmanuel Lamprecht, Tebello Nyokong,