An amplified fluorescence detection of T4 polynucleotide kinase activity based on coupled exonuclease III reaction and a graphene oxide platform†
Abstract
A novel amplified fluorescence graphene oxide (GO) sensing platform for sensitive detection of T4 polynucleotide kinase (PNK) activity and inhibition was developed based on the exonuclease III (ExoIII) reaction. The efficient digestion capacity of ExoIII and the super quenching ability of GO both contribute to the detection sensitivity.