Ultrasensitive and specific detection of dimethoate using a p-sulphonato-calix[4]resorcinarene functionalized silver nanoprobe in aqueous solution

We demonstrate a facile strategy for preparing highly stable silver nanoprobe modified p-sulphonato-calix[4]resorcinarene in aqueous media. We also report the efficient and selective sensing properties of the novel assembly for organophosphorus insecticides and its great potential for application to real-time in situ detection of organophosphorus pesticides in waste water.