Ultrasensitive nanosensors based on localized surface plasmon resonances: From theory to applications

Chen Wen¹, Hu Huatian², Jiang Wei¹, Xu Yuhao¹, Zhang Shunping^1,, Xu Hongxing^{1, 2,}

(color online) Some typical applications using plasmon rulers. (a) Monitoring of DNA hybridization events using nanoparticle dimer.^[105] (b) Detecting MMP3 proteins secreted from live cells.^[141] (c) Probing of drug response by selective detection of caspase-3 in live cells.^[145] (d) Cavity plasmon-based humidity sensing resulting from the thickness change of a PVP layer filled inside the NWOM cavity.^[121] Reprinted with permission from Copyright 2005 Nature Publishing Group, Copyright 2015 American Chemical Society, Copyright 2018 Nature Publishing Group.