Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 374, Issue 1-3, Pages 77-83Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2010.11.015
Keywords
Chirality; Cysteine; Nanoparticles; Silver; Supramolecular
Categories
Funding
- MSMT [6046137307, LC 512, 203/06/0872, KAN200100801]
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Silver nanoparticles (similar to 45 nm) were prepared by citrate reduction of AgNO3 and modified with cysteine and N-, C- and S-protected cysteine derivatives. Based on interpretation of absorption and circular dichroism spectra in UV-Vis range, unusual chiral architecture of modified silver nanoparticles (independently on the cysteine enantiomer used) was uncovered. This phenomenon was observed even after modification of silver nanoparticles with racemate of cysteine. Influence of pH and reducing agent was studied. (C) 2010 Elsevier B.V. All rights reserved.
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