Phyto-Electrochemical Mapping of Indian Cappers: Redox Mediator Application on Mesoporous Carbon Based Electrodes
description: Indian Cappers (IC), often known for its wide range of applications as a medicinal plant, is an essential spice with phenolic phytochemical attributes. These are plausibly electrochemically redox active in nature. The redox moiety of phytochemicals can be exploited as a green route electron-transfer mediator, rather than conventional chemical redox mediators. Herein, mesoporous carbon-assisted electrochemical redox mapping of a phytochemical using IC plant is reported. A well-defined redox peak for IC-redox with E0 = 0.2 V is observed with a surface excess (?) value of 44.8 109 mol cm?2. Physico-chemical characterization is carried out to provide a detailed analysis of IC redox-based constituents. Furthermore, the fabricated IC sensor is used for the electrocatalytic oxidation of Ascorbic acid (AA) as a model system for preparing electrochemical sensors. The prepared sensor gave a notable oxidation peak for AA at E?= 220 mV with a sensitivity value of 0.0385 ?A/?M in the range of 0?1000 ?M. This work is a preliminary experiment for on-site testing of ascorbic acid in blood serum samples as a point of care testing. Additionally, the Cappers showed appreciable antibacterial activity against both Gram-positive and Gram-negative strains, producing clear inhibition zones even without the use of antibiotics. 2025 The Electrochemical Society (ECS). Published on behalf of ECS by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
creator: Gandhi, Mansi; Amreen, Kharunnisa; Varghese, Anitha
source: Journal of the Electrochemical Society;Volume;172;Issue;12;Article No.;127503;
publisher: Institute of Physics
date: 01-01-2025
rights: Restricted Access; Hardcopy may be available in the library
relation: ISSN: 134651; CODEN: JESOA
format: online
language: English
type: Article
coverage: Gandhi M., Department of Chemistry, Christ University, Bengaluru, 560029, India; Amreen K., St. Anns College for women-Mehdipatnam, Telangana, Hyderabad, 500028, India; Varghese A., Department of Chemistry, Christ University, Bengaluru, 560029, India