PEC/Colorimetric Dual-Mode Lab-on-Paper Device via BiVO₄/FeOOH Nanocomposite In Situ Modification on Paper Fibers for Sensitive CEA Detection.

ABSTRACT: A dual-mode lab-on-paper device based on BiVO₄/FeOOH nanocomposites as an efficient generating photoelectrochemical (PEC)/colorimetric signal reporter has been successfully constructed by integration of the lab-on-paper sensing platform and PEC/colorimetric detection technologies for sensitive detection of carcinoembryonic antigen (CEA). Concretely, the BiVO₄/FeOOH nanocomposites were in situ synthesized onto the paper-working electrode (PWE) through hydrothermal synthesis of the BiVO₄ layer on cellulose fibers (paper-based BiVO₄) which were initially modified by Au nanoparticles for improving the conductivity of three dimensional PWE, and then the photo-electrodeposition of FeOOH onto the paper-based BiVO₄ to construct the paper-based

SUBMITTER: Li X 

PROVIDER: S-EPMC9855910 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature