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In recent years, the coupling of a single quantum emitter with a plasmonic nanostructure has generated a growing interest leading to the field of quantum plasmonic. Individual Surface Plasmon Polaritons (SPPs) can be generated by single photon sources and locally controlled fluorescence enhancement can be achieved. For this purpose stable quantum emitters at room temperature and precise positioning...
Go for gold: As‐prepared insulin–Au nanoclusters (NCs) show intense red fluorescence, excellent biocompatibility, and preservation of natural insulin bioactivity in lowering the blood‐glucose level. Their versatility in applications is demonstrated by fluorescence imaging, X‐ray computed tomography, and insulin–inhibitor interactions (see picture; IDE=insulin‐degrading enzyme).
A simple method has been developed for homogeneous deposition of uniform Au-core Ag-shell nanoparticles on glass substrate. The method uses uniform gold colloid as seed and a silver enhancing kit to provide silver overlayer with improved fluorescence enhancement properties. Depending on size of these nanoparticles, the fluorescence of FITC-HSA monolayer deposited over the nanoparticles is either quenched,...
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