文献类型：期刊文献

英文题名：Plasmon Resonance Energy Transfer: Coupling between Chromophore Molecules and Metallic Nanoparticles

作者：Cao, Yue[1,2];Xie, Tao[1,2];Qian, Ruo-Can[1,2];Long, Yi-Tao[1,2]

机构：[1]East China Univ Sci & Technol, Dept Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：13

期号：2

外文期刊名：SMALL

收录：;EI(收录号：20165003110871);WOS:【SCI-EXPANDED(收录号:WOS:000396564600006)】；

基金：This research was supported by the National Natural Science Foundation of China (Grant No. 21327807), the Science Fund for Creative Research Groups (Grant No. 21421004), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (Grant No. YJ0130504), the Program of Shanghai Subject Chief Scientist (Grant No. 15XD1501200), the Programme of Introducing Talents of Discipline to Universities (B16017), the China Postdoctoral Science Foundation (Grant Nos. 2015M570335 and 2016T90339).

语种：英文

外文关键词：Energy transfer - Surface plasmon resonance - Chromophores - Gold nanoparticles

摘要：Plasmon resonance energy transfer (PRET) from a single metallic nanoparticle to the molecules adsorbed on its surface has attracted more and more attentions in recent years. Here, a molecular beacon (MB)-regulated PRET coupling system composed of gold nanoparticles (GNPs) and chromophore molecules has been designed to study the influence of PRET effect on the scattering spectra of GNPs. In this system, the chromophore molecules are tagged to the 5'-end of MB, which can form a hairpin structure and modified on the surface of GNPs by its thiol-labeled 3'-end. Therefore, the distance between GNPs and chromophore molecules can be adjusted through the open and close of the MB loop. From the peak shift, the PRET interactions of different GNPs-chromophore molecules coupling pairs have been calculated by discrete dipole approximation and the fitting results match well with the experimental data. Therefore, the proposed system has been successfully applied for the analysis of PRET situation between various metallic nanoparticles and chromophore molecules, and provides a useful tool for the potential application in screening the PRET-based nanoplasmonic sensors.