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- Title
GREEN SYNTHESIS AND STABILIZATION OF GOLD NANOPARTICLES VIA CARBOXYMETHYLATED CURDLAN.
- Authors
Jing-Kun Yan; Yao-Yao Wang; Hai-Le Ma
- Abstract
In this work, a novel and simple method is developed for the green synthesis of gold nanoparticles (AuNPs) by carboxymethylated curdlan (CMC), which served as both reducing and stabilizing agent in an aqueous medium. The synthesized AuNPs were characterized by UV-Vis spectroscopy, HR-TEM, DLS, XRD and FT-IR measurements. Results indicate that the particle size decreases with increase in reaction time and CMC concentration. The as-synthesized AuNPs were spherical and monodispersed with a mean particle size of ~16 nm. FT-IR spectra indicated that the as-synthesized AuNPs could readily bind covalently with the carboxylate groups of CMC molecules in the reaction medium. During the synthesis process, the heat treatment of the CMC and HAuCl4 suspension could induce the conformation transition from the triple helix to single flexible chains. In addition, the as-prepared AuNPs exhibit almost negligible cytotoxicity against the MCF-7 cell lines.
- Subjects
GOLD nanoparticles; CARBOXYMETHYLATION; CURDLAN; STABILIZING agents; ULTRAVIOLET spectroscopy; FOURIER transform infrared spectroscopy
- Publication
Current Topics in Nutraceutical Research, 2015, Vol 13, Issue 4, p259
- ISSN
1540-7535
- Publication type
Article