Electrical Stimulation Techniques in Wound Healing

Healing of skin and soft tissue wounds is orchestrated by a complex interplay of cellular migration, proliferation, angiogenesis and matrix remodelling. Electrical stimulation (ES) harnesses exogenous fields to mimic physiological bioelectric cues, supplementing endogenous wound currents that naturally arise at injury sites. Delivered via electrodes, conductive dressings or wearable patches, ES modalities include direct current, pulsed and alternating fields at intensities from microampere to milliampere. Such stimulation promotes directional cell migration (galvanotaxis), enhances fibroblast proliferation and myofibroblast transdifferentiation, stimulates new blood vessel formation through up-regulation of growth factors and can induce antimicrobial effects via reactive oxygen species. Recent advances integrate ferroelectric and electroconductive biomaterials into flexible, self-powered platforms, offering battery-free options. Clinical models have demonstrated accelerated wound closure, reduced scarring and improved perfusion in both acute and chronic settings. These techniques hold global significance for the management of diabetic ulcers, pressure sores and other non-healing wounds by providing non-invasive, cost-effective adjuncts to standard care.

Research from Nature Portfolio

Recent studies have shown that hypoxic preconditioning enhances the galvanotactic migration of keratinocytes by increasing directional sensing rather than overall motility, effectively lowering the voltage threshold required for guided movement. In scratch-wound assays simulating re-epithelialisation, brief exposure to low oxygen tension accelerated closure rates by augmenting endogenous electric-field-mediated cues. These findings reveal a novel synergy between oxygen signalling and bioelectric guidance during epithelial repair.

Electrical Stimulation Techniques in Wound Healing publication trend

The graph below shows the total number of articles in electrical stimulation techniques in wound healing across all publications each year (not limited to Nature Index journals).

Technical terms

Galvanotaxis: Directed migration of cells in response to an electric field.

Electret: A dielectric material retaining a permanent electric charge, used to generate stable fields without external power.

Endogenous electric field: Physiological voltage gradients occurring at wound edges that guide cell behaviour and tissue repair.

Myofibroblast transdifferentiation: Process by which fibroblasts develop contractile, smooth muscle-like properties to drive wound contraction and matrix remodelling.

References

1. Ferroelectric catalytic BaTiO3‐based composite insoles to promote healing of infected wounds: Analysis of antibacterial efficacy and angiogenesis. Interdisciplinary Materials (2024).
2. Inhibiting scar formation via wearable multilayer stacked electret patch: Self‐creation of persistent and customizable DC electric field for fibrogenic activity restriction. InfoMat (2023).
3. The Galvanotactic Migration of Keratinocytes is Enhanced by Hypoxic Preconditioning. Scientific Reports (2015).
4. Electrical Stimulation and Cutaneous Wound Healing: A Review of Clinical Evidence. Healthcare (2014).