3D-printed electrochemical platform with multi-purpose carbon black sensing electrodes.

ABSTRACT: The 3D printing is described of a complete and portable system comprising a batch injection analysis (BIA) cell and an electrochemical platform with eight sensing electrodes. Both BIA and electrochemical cells were printed within 3.4 h using a multimaterial printer equipped with insulating, flexible, and conductive filaments at cost of ca. ~ U$ 1.2 per unit, and their integration was based on a threadable assembling without commercial component requirements. Printed electrodes were exposed to electrochemical/Fenton pre-treatments to improve the sensitivity. Scanning electron microscopy and electrochemical impedance spectroscopy measurements upon printed materials revealed high-fidelity 3D features (90 to 98%) and fast heterogeneous rate constants ((1.5 ± 0.1) × 10^-3 cm s^-1<

SUBMITTER: Silva-Neto HA 

PROVIDER: S-EPMC9142345 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature