Nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine
Kai Zhang, Zhonghui Zhuo, Guorong Fan, Zongde Wang, Shangxing Chen, Lulu Xu, Yangping Wen, Peng Wang
Abstract
synthesized ZnS nanoparticles and sulfur doping improve the conductivity and cycling stability of the material. The ZSHPC electrode with multiple enzyme-like activities and oxidase-like characteristics was employed for the simultaneous detection of multiple target molecules in linear ranges of 0.3-500 μM with detection limits of 0.12 μM for DA, 0.26 μM for UA, 0.07 μM for G, and 0.075 μM for A. A derivative technique was selected for enhancing the peak resolution of the partial overlapped voltammograms and eliminating human error. Both the coefficient of determination and residual prediction deviation were used to evaluate this technique.
Topics & Concepts
Materials scienceUric acidGuanineElectrocatalystDopaminePorosityCarbon fibersNanotechnologyChemistryComposite numberElectrochemistryBiochemistryElectrodeComposite materialPhysical chemistryNeuroscienceBiologyGeneNucleotideElectrochemical sensors and biosensorsAdvanced Nanomaterials in CatalysisConducting polymers and applications