A competitive coordination-based immobilization-free electrochemical biosensor for highly sensitive detection of arsenic(v) using a CeO2–DNA nanoprobe†
Abstract
We developed a competitive coordination-based immobilization-free electrochemical biosensor for highly sensitive and selective detection of arsenic(V) using a CeO2–DNA nanoprobe, which effectively circumvented complicated modification procedures and successfully achieved arsenic(V) determination in natural water samples.