Application of<scp>l</scp>-cysteine capped core–shell CdTe/ZnS nanoparticles as a fluorescence probe for cephalexin

Abstract

<sc>l</sc>-Cysteine capped CdTe/ZnS NPs were prepared in an aqueous system and the fluorescence intensity was significantly reduced when the concentration of cephalexin increased, which proves a good probe for determination of cephalexin in pharmaceutical fields.