Colorimetric/photothermal dual-mode sensing detection of ascorbic acid based on a Ag[<scp>i</scp>] ion/3,3′,5,5′-tetramethylbenzidine (TMB) system
Ya Di, Jiyao Zheng, Yunwang Zhao, Zi-Kai Yang, Changshun Xie, Jiahan Yu, Yue Zheng, Liming Gao
Abstract
, 0.997; LOD, 7.8 nM)). Based on this, a sensing approach for detection of AA was proposed with dual-mode and without the complicated synthesis of nanomaterials. The photothermal effect and colorimetric signal provided a dual-mode detection strategy for AA, overcoming the limitations of any single mode. This colorimetric and photothermal dual-mode detection has great potential in the detection of AA in clinical pharmaceuticals and the construction of portable and highly sensitive sensors.
Topics & Concepts
Ascorbic acidChemistryDual modePhotothermal therapyIonChromatographyColorimetryAnalytical Chemistry (journal)Combinatorial chemistryNanotechnologyMaterials scienceOrganic chemistryFood scienceEngineeringAerospace engineeringAdvanced Nanomaterials in CatalysisElectrochemical sensors and biosensorsMolecular Sensors and Ion Detection