中文摘要：

本实验采用制备金纳米颗粒的Schiffrin-Brust经典方法的思路,利用不同分子量的巯基化聚乙二醇作为稳定剂,硼氢化钠作为还原剂,在水相溶液中探索制备了超小尺寸金纳米颗粒.通过透射电镜观察和粒径统计分析可知制备得到的金纳米颗粒尺寸均一,单分散性良好.该制备方法简单,得到的超小金纳米颗粒稳定性良好,为生物医药领域的相关研究及应用提供了新的材料和模型.

英文摘要：

Ultra-small gold nanoparticles were obtained based on the classical Schiffrin-Brust method by using different molecular weight of polyethylene glycol amine as the stabilizer and sodium borohydride as the reducing agent reacted in an aqueous phase solution.The method of preparation is very simple.The gold nanoparticles obtained have a uniform morphology and good monodisperse stability in bio-media.This work provides a good prerequisite for research and applications of ultra-small gold nanoparticles in the field of biomedical.