组装在银纳米颗粒-电介质-金属基底上的单个荧光团发出的荧光增强了数百倍。
Several hundred-fold enhanced fluorescence from single fluorophores assembled on silver nanoparticle-dielectric-metal substrate.
作者信息
Ray Krishanu, Badugu Ramachandram, Szmacinski Henryk, Lakowicz Joseph R
机构信息
Centre for Fluorescence Spectroscopy, University of Maryland School of Medicine, Department of Biochemistry and Molecular Biology, 725 West Lombard Street, Baltimore, MD 21201, USA.
出版信息
Chem Commun (Camb). 2015 Oct 18;51(81):15023-6. doi: 10.1039/c5cc03581c.
Abstract
We observed over 400-fold enhanced fluorescence from single Cy5 molecules assembled on multilayer silver nanoparticle-dielectric-metal (PDM) substrate. This substantial enhancement is due to the near-field enhanced excitation, emission, and interaction of Cy5 with plasmonic nanostructures. Experimental observation is supported by finite-element method calculations.
摘要
我们观察到，在多层银纳米颗粒-电介质-金属（PDM）衬底上组装的单个Cy5分子的荧光增强了400多倍。这种显著的增强是由于近场增强了Cy5与等离子体纳米结构的激发、发射和相互作用。有限元法计算支持了实验观察结果。
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