This communication reports novel p-sulfonatocalix[4]arene thiol modified gold nanoparticles as a colorimetric sensor to probe lysine, arginine and histidine in water.
Here we demonstrate a facile strategy of preparing gold nanoparticle (AuNP) crown ether assemblies by the generation of strongly binding dithiocarbamate (DTC) modified benzo-15-crown-5; we also report the efficient and selective ion sensing property of the novel assembly for K(+).
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