Work

Electrospun polymeric patch integrated with an electrochemical biosensor for real-time superoxide monitoring in cell culture models of chronic wounds

Year: 2025

Type: article

Abstract: , and a 1.5 μM detection limit. A cell-based wound model was developed to simulate chronic wound conditions, using an adhesive membrane modified with electrospun Nylon fibers that provided a biocompatible surface for cell adhesion and proliferation. Cells cultured on the membrane were irradiated with UV light to induce superoxide generation, mimicking oxidative stress in chronic wounds. Although the membrane introduced a diffusion barrier that reduced sensitivity by 40 %, it ensured close contact between cells and the electrode surface, enabling accurate in situ quantification of superoxide. Chronoamperometric detection at +0.3 V revealed sharp photocurrent peaks followed by decay, consistent with ROS generation and enzymatic clearance. The PEDOT matrix exhibited a photo-amplifying effect, nearly tripling the sensitivity under UV irradiation. The developed device is suitable for real-time oxidative stress profiling in wound models with potential for ex vivo and in vivo applications.

Source: Biosensors and Bioelectronics

DOI: 10.1016/j.bios.2025.118220

Authors: Madalina M. Barsan, Daniela Oprea, Mihaela Beregoi, Iulia Corina Ciobotaru, Teodor A. Enache

Institutions: National Institute of Materials Physics, University of Bucharest

Language: English

Topic: Electrochemical sensors and biosensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $5,540