论文部分内容阅读
We describe a simple and effective method to obtain colloidal photoluminescent gold nanoclusters (Au NCs).The method is primarily based on irradiation of a gold ion solution in the presence of 11-mercaptoundecanoic acid (MUA) with high-flux X-rays from a synchrotron source.Specific tests demonstrated that MUA, being an effective surfactant,not only allows tunable size control of the NPs, but also facilitates functionalization.