Nanomolar determination of copper(II) and zinc(II) using supramolecular complexes of meso-tetrakis(4-N-methylpyridyl)porphine on polyglutamate
Abstract
The remarkable acceleration of CuII and ZnII insertion in cationic porphyrins monodispersed on a polyglutamate anionic surface allows determination of the two metal ions down to nanomolar concentrations.