Effect of different modification by gold nanoparticles on the electrochemical performance of screen-printed sensors with boron-doped diamond electrode.

ABSTRACT: Screen-printed sensors with chemically deposited boron-doped diamond electrodes (BDDE) were modified with different types of gold nanoparticles (AuNPs) according to a new original procedure. Physically and electrochemically deposited AuNPs had various sizes and also nanoporous character. They also differ in shape and density of surface coverage. The developed sensors were characterized using scanning electron microscopy and Raman spectroscopy. Their electrochemical properties were studied using cyclic voltammetry and electrochemical impedance spectrometry of selected outer sphere ([Ru(NH₃)₆]Cl₃) and inner sphere (K₃[Fe(CN)₆], dopamine) redox markers. The application possibilities of such novel screen-printed sensors with BDDE modified

SUBMITTER: Matvieiev O 

PROVIDER: S-EPMC10700314 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature