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陈文兴

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期刊论文

Preparation and characterization of noble metal nanocolloids by silk fibroin in situ reduction

陈文兴CHEN Wenxing WU Wen CHEN Haixiang & SHEN Zhiquan

SCIENCE IN CHINA (Series B), August 2003, Vol. 46 No. 4,-0001,():

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摘要/描述

Noble metal nanocolloids are prepared from their precursors by in situ reduction of a silk fibroin solution at room temperature without any reducing agent. The mechanism, the effects of pH and the molar ratio of the reactants on the reduction reaction are studied by UV-Vis spectroscopy. The structure of the colloids is characterized by FT-IR, TEM and AFM. According to the TEM images, the gold-silk fibroin colloid is a nanostructured bioconjugate with novel core-shell, while the silver-silk fibroin colloid tends to be congregated as clusters having more than ten nanoparticles of silver-silk fibroin. The gold colloid is highly dispersed and stable while the silver colloid is less dispersed and stable than the gold colloid.

版权说明:以下全部内容由陈文兴上传于   2005年05月27日 18时49分00秒,版权归本人所有。

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