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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2026-06-12 0:10 |
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Conference: Bucharest University Faculty of Physics 2026 Meeting
Section: Polymer Physics
Title:
Development of a low-cost ESP32-based potentiostat for electrochemical monitoring of medical wastewater contaminants
Authors:
Stefan Caramizoiu(1,3) Ana-Maria Iordache(1), Ana-Maria Florea(1,2), Bogdan-Ionut Bita(1,2), Stefan-Marian Iordache(1)
Affiliation:
1) Optospintronics Department, National Institute of Research and Development for Optoelectronics - INOE 2000, 409 Atomistilor Street, Magurele, 077125, Romania;
2) Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Magurele, Romania;
3) Department of Structure of Matter, Atmospheric and Earth Physics, Astrophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125, Magurele, Romania.
E-mail
stefan.caramizoiu@inoe.ro
Keywords:
potentiostat; cyclic voltammetry; electrochemical sensors; wastewater monitoring; ESP32; medical contaminants
Abstract:
Wastewater from hospitals and medical institutions can contain antibiotics, heavy metals, viruses, and bacteria that are not fully removed during treatment. This work presents a low-cost potentiostat developed for electrochemical sensing in medical wastewater analysis. The device uses an ESP32 module for data acquisition and wireless communication, operational amplifiers for signal conditioning and electrode control, DAC/ADC conversion stages, a dedicated power supply, and an electrode configuration with two working areas. It is designed for cyclic voltammetry measurements, so it can be used to study redox processes linked to target analytes and functionalized sensing surfaces. Its modular design allows the use of different electrode materials and experimental protocols, while the embedded architecture supports portable and remotely accessible measurements. This platform is expected to support accessible electrochemical measurements for environmental monitoring and rapid screening. The potentiostat is also intended as an educational and research platform for electrochemistry, sensor development, and material characterization
Acknowledgement:
The authors were supported by the Core Program with the National Research Development and Innovation Plan 2022-2027, carried out with the support of MER, project no. PN 23 05. The research work contained in this paper was supported within the frame of the project ”AI-based system using optical, photonic, and electrochemical sensors for wastewater monitoring in high-risk environments – SISMED”, Project Code 331741, Funding Contract No. 390052 / 03.09.2025.
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