Screen-printed electrode designed with MXene/doped-polyindole and MWCNT/doped-polyindole for chronoamperometric enzymatic glucose sensor.

ABSTRACT: The enzymatic glucose sensors as modified by MXene-dPIn and MWCNT-dPIn on a screen-printed carbon electrode (SPCE) were investigated. Herein, MXene was molybdenum carbide (Mo₃C₂) which has never been utilized and reported for glucose sensors. The biopolymer type to support the enzyme immobilization was examined and compared between chitosan (CHI) and κ-carrageenan (κC). MWCNT-dPIn obviously showed a larger electroactive surface area, lower charge transfer resistance and higher redox current than Mo₃C₂-dPIn, indicating that MWCNT-dPIn is superior to Mo₃C₂-dPIn. For the chitosan-based sensors, the sensitivity value of CHI-GOD/Mo₃C₂-dPIn is 3.53 μA mM^-1 cm^-2 in the linear range of 2.5

SUBMITTER: Phasuksom K 

PROVIDER: S-EPMC10826182 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature