Single-Walled Carbon Nanotube and Hemoglobin used in a Dopamine Biosensor

摘要

Planning a dopamine biosensor by single-walled carbon nanotube (SWNTs) additionally hemoglobin(Hb) experimented. Cyclic voltammetry (CV) for entirety electrochemical research were functioned. Astandard three-electrode cell was operated during the analyses, Hbcarbon paste electrode (CPE) orSWNTs-Hb changed CPE as a working electrode, a saturated calomel electrode (SCE) as a referenceelectrode, and a platinum electrode as a counter electrode. Oxidation peak potential (Epa) as well asreduction peak potential (Epc) were between 50 also 00mV, respectively, furthermore the peak- to-peak disjunction (咵p) was 50mV. To check the catalytic behavior of Hb, cyclic voltammograms ofthe SWNTs-Hb changed carbon paste electrode were examined in a solution with variousconcentration of dopamine. The outcomes demonstrate that dopamine displayed a linear association fordiverse concentrations of dopamine in the level of 2 to 11 mM.