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We report an ultrasensitive and selective single nanowire‐on‐film (SNOF) surface‐enhanced resonance Raman scattering (SERRS) sensor for Hg2+ detection based on structure‐switching double stranded DNAs (dsDNAs). Binding of Hg2+ induces conformational changes of the dsDNAs and let a Raman reporter get close to the SNOF structure, thereby turning on SERRS signal. The well‐defined SNOF structure provides...
We report a highly sensitive imaging technology using surface-enhanced Raman scattering nanoparticles. Fluorescence microscopy is a well-known imaging technique which provides a specific protein distribution inside cells. However, most of currently available fluorescent organic dyes have relatively weak emission intensities and they are also photo-bleached quickly. In order to resolve this problem,...
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