文献类型：期刊文献

英文题名：Single plasmonic nanoparticles as ultrasensitive sensors

作者：Xie, Tao[1,2];Jing, Chao[1,2,3];Long, Yi-Tao[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]Tech Univ Munich, Phys Dept E20, James Franck Str 1, D-85748 Garching, Germany

年份：2017

卷号：142

期号：3

起止页码：409

外文期刊名：ANALYST

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000395421000001)】；

基金：This research was supported by the National Natural Science Foundation of China (21327807, 21421004), and the Programme of Introducing Talents of Discipline to Universities (B16017). Y.-T. Long acknowledges the support by the Shanghai Science and Technology Committee (12JC1403500).

语种：英文

摘要：Plasmonic nanoparticles, especially Au and Ag, exhibit unique and tuneable optical properties due to their localized surface plasmon resonance, which have been widely applied in cell imaging, biocatalysis and biosensing. Notably, dark-field microscopy enables the observation of the scattering spectra of single nanoparticles and therefore has been intensively used in the construction of various nanosensors. In this mini review, we will briefly introduce the recent applications of plasmonic nanoparticles based on dark-field microscopy. Ultrasensitive sensors at the single-nanoparticle level are mainly focused by Rayleigh scattering spectroscopy, which is sensitive to their geometry, plasmon coupling, plasmon resonance energy transfer and assembly. Fabrication methods for the nanomaterials and new analysis techniques will also be discussed in detail.