Nanomedicine Approaches in Burn Wound Management

Burn wounds present a complex therapeutic challenge owing to high risk of infection, extended inflammatory phases and potential for excessive scarring. Nanomedicine offers innovative solutions by harnessing materials at the nanoscale to deliver antimicrobial agents, growth factors and immunomodulatory cues directly to the wound bed. Metallic nanoparticles, notably silver and gold, exert broad-spectrum antibacterial action, while polymeric nanocarriers and hydrogels serve as scaffolds that mimic extracellular matrix, regulate moisture and release bioactive molecules in a controlled manner. Advanced formulations can shift macrophage phenotypes from pro-inflammatory to reparative states, promote angiogenesis and orchestrate collagen deposition for functional tissue restoration. By reducing systemic exposure and enabling localised, sustained therapy, these approaches aim to accelerate healing, limit infection and minimise scarring, with potential for translation across diverse clinical settings worldwide.

Research from Nature Portfolio

Recent studies have investigated silver-based wound dressings using ex vivo skin models to assess both antimicrobial efficacy and local toxicity. Various forms of silver dressings were found to penetrate the epidermis, elevate DNA damage markers in keratinocytes and induce oxidative stress in both skin and immune cells. The degree of cytotoxicity correlated with the chemical form of silver and the dressing architecture rather than total silver content, and pro-inflammatory cytokine release by monocytes was observed alongside impaired neutrophil function. These insights underscore the necessity of rigorous in vivo evaluation to balance antimicrobial benefit against potential tissue damage in silver-containing dressings.

Nanomedicine Approaches in Burn Wound Management publication trend

The graph below shows the total number of articles in nanomedicine approaches in burn wound management across all publications each year (not limited to Nature Index journals).

Technical terms

Nanoparticle: A particle with dimensions between 1 and 100 nanometres, offering high surface-area-to-volume ratio for drug loading and interaction with biological tissues.

Hydrogel: A three-dimensional, hydrophilic polymer network capable of retaining large volumes of water, used as a scaffold for cell growth and controlled release of therapeutics.

Biofilm: A structured community of microbial cells encased in a self-produced extracellular matrix, often resistant to conventional antimicrobial treatments.

Macrophage polarization: The functional shift of macrophages between pro-inflammatory (M1) and reparative (M2) phenotypes, crucial for modulating the wound healing process.

Nanoemulsion: A thermodynamically stable oil-in-water or water-in-oil emulsion with droplet sizes in the nanometre range, used to enhance drug solubility and skin permeation.

References

1. Ag nanocomposite hydrogels with immune and regenerative microenvironment regulation promote scarless healing of infected wounds. Journal of Nanobiotechnology (2023).
2. Formulation and In Vivo Evaluation of Biofilm Loaded with Silver Sulfadiazine for Burn Healing. Gels (2023).
3. Enhanced Antimicrobial Activity of Silver Sulfadiazine Cosmetotherapeutic Nanolotion for Burn Infections. Cosmetics (2022).
4. Effects of wound dressings containing silver on skin and immune cells. Scientific Reports (2020).
5. Recent advances in nanotherapeutics for the treatment of burn wounds. Burns & Trauma (2021).