Highly water-soluble and biocompatible cysteine-capped CdS nanoparticles have been synthesized in the colloidal state, and particle distribution has been narrowed down using the size-selective precipitation technique. Optical absorption and emission spectra confirm that particles formed lie within the size quantization regime. An enhancement in luminescence has been observed on addition of free Cd2+ ions and cysteine to the solution of CdS nanoparticles. The pH dependence of the fluorescence has also been studied.
Research on Chemical Intermediates – Springer Journals
Published: Sep 1, 2005
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