Student Author(s)

Yechan Hwang, Hope College

Faculty Mentor(s)

Dr. Kenneth L. Brown, Chemistry

Document Type


Event Date



In recent years there have been many interests in developing paper based electrodes.[1] The purpose of this project is to develop a working paper-based electrode that can detect glucose via an enzyme and redox mediator (Tris(5-amino-1, 10-phenanthroline) Iron(II)). In the process of developing a paper-based electrode, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used as primary methods. The redox mediator was electropolymerized onto glassy carbon (GC) and carbon-paste electrodes (CPE) and their subsequent charge-transfer properties were characterized using CV and EIS. Cyclic voltammetry characterization studies of the electropolymerized films revealed excellent charge transfer properties with ΔEp ~0 mV. Electrochemical impedance spectroscopy showed that the charge transfer properties of the carbon paste vary with carbon:binder mass ratio (1:1, 1:2, 1:3). Carbon paste formulation was successfully placed onto a wax-coated Whatman filter paper. Initial attempts to prepare films on carbon-paste based-paper electrodes have been successful.

[1] ACS Appl. Mater. Interfaces 2016, 8, 32, 20501-20515. Publication Date: July 27, 2016.


Support provided by the Hope College Department of Chemistry.