Ultrasensitive nanosensors based on localized surface plasmon resonances: From theory to applications
Chen Wen1, Hu Huatian2, Jiang Wei1, Xu Yuhao1, Zhang Shunping1, , Xu Hongxing1, 2,
       

(color online) Strategies for improving the molecular sensitivity (a) Increasing the analyte size by binding extra molecules.[93] (b) Small gas molecules detected using high-resolution spectroscopy.[95] (c) Single-molecule detection by photothermal microscopy.[9] Reprinted with permission from Copyright 2005, 2010 American Chemical Society, Copyright 2012 Nature Publishing Group.