A low-noise ratiometric fluorescence biosensor for detection of Pb2+ based on DNAzyme and exonuclease III–assisted cascade signal amplification
Huali Jin, Ruike Liu, Tian Bai, Min Wei, Baoshan He, Zhiguang Suo
Topics & Concepts
DeoxyribozymeChemistryBiosensorExonuclease IIIFluorescenceExonucleaseDetection limitStreptavidinDNAFörster resonance energy transferAnalytical Chemistry (journal)Metal ions in aqueous solutionBiophysicsIonBiotinDNA polymeraseChromatographyBiochemistryPhysicsOpticsBiologyEscherichia coliOrganic chemistryGeneAdvanced biosensing and bioanalysis techniquesBiosensors and Analytical DetectionElectrochemical Analysis and Applications