The development of a safe and effective method for synthesizing and fabricating nanocomposite films for wound healing applications

The gap

Evidence profile

Sourced from the stated research gap and future work and future-work section and stated challenges of the source papers, classified as general, drawn from work published between 2025 and 2026, spanning 3 journals. Those papers have been cited 86 times in total.

Supporting evidence — 4 representative gaps

• Poly(vinyl alcohol) Nanocomposites Reinforced with CuO Nanoparticles Extracted by Ocimum sanctum: Evaluation of Wound-Healing Applications (2025) · Polymers · cited 22× · doi

  The gap in the current research is the development of a safe and effective method for synthesizing and fabricating nanocomposite films for wound healing applications. The study also identifies the need for a novel method for synthesizing plant-mediated copper-oxide nanoparticles.

  generalstated research gap
  Keywords: gap current research development safe effective method synthesizing
• Harnessing Copper Nanoparticles for Antimicrobial Applications: Advances and Challenges (2025) · Antibiotics · cited 30× · doi

  Copper nanoparticles (CuNPs) have emerged as one of the most promising alterna- tives to conventional antimicrobial agents due to their broad spectrum of activity, multiple Antibiotics 2025, 14, 1170 21 of 30 mechanisms of action, and relatively low cost of production compared to other metallic nanostructures. Their ability to generate reactive oxygen species, disrupt microbial mem- branes, and interact with DNA and proteins gives them significant efficacy against bacteria, fungi, viruses, and multi-resistant pathogens. Beyond the direct antimicrobial effect, CuNPs have been successfully incorporated into biomedical devices, wound dressings, textiles, and packaging materials, demonstrating their application potential in medicine, agriculture, and the food industry. However, there are still some challenges before widespread clinical and environmental application can be achieved. Cytotoxicity to eukaryotic cells and poten- tial ecotoxicological effects raise biosafety concerns, especially given the tendency of CuNPs to accumulate in tissues and ecosystems. Current evidence suggests that toxicity is highly dependent on particle size, morphology, and surface chemistry, highlighting the need for precise control in synthesis and functionalization. In addition, the lack of standardized test protocols makes reliable risk assessment difficult, hampering comparisons between different studies and limiting regulatory progress. Future research should focus on strategies that strike a balance between efficacy and safety. Surface modification, green synthesis, and the design of stimuli-responsive nano- materials are promising ways to improve biocompatibility and reduce adverse effects. Advanced in vitro and in vivo modeling, combined with computer simulations and pre- dictive toxicology, can support the development of safer formulations. From a regulatory perspective, harmonized risk assessment frameworks are urgently needed to establish guidelines that consider both clinical and environmental dimensions. In parallel, the scal- ability and cost-effectiveness of synthesis methods need to be optimized to ensure that CuNP-based technologies remain accessible. The integration of CuNPs with conventional antibiotics, polymers, and other nanomaterials can also help to reduce the risk of resistance development while improving therapeutic performance. Importantly, the long-term effects of CuNP exposure on patients and ecosystems need to be further investigated to ensure sustainability. In summary, CuNPs show promise as next-generation antimicrobial agents to address the global challenge of antimicrobial resistance. However, their future success depends on bridging the gap between efficacy in the laboratory and safety in the field. With advances in synthesis methods, toxicity assessment, and regulatory frameworks, copper-based nanomaterials could play a transformative role in biomedical innovation, public health, and sustainable agriculture. Author Contributions: Conceptualization, S.P.V. and R.A.G.S.; methodology, D.S.P.; validation and data curation, V.G.V., G.S.M.P. and F.K.K.; formal analysis, F.G.L., V.T.S. and M.R.S.; writing—original draft preparation, S.P.V., D.S.P. and R.A.G.S.; writing—review and editing, K.D.L.L., A.L.M., N.G.S., G.C.M.O. and Y.R.G.; supervision, S.P.V.; funding acquisition, S.P.V., D.S.P. and M.R.S. All authors have read and agreed to the published version of the manuscript. Funding: CIM-EMBRAPII Unifesp, CNPq, FAPESP (2021/11443-7), CAPES, and Termomecanica São Paulo S/A. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: No new data were created or analyzed in this study. Acknowledgments: This research study was supported by Federal University of Sao Paulo, CIM- EMBRAPII Unifesp, CNPq, FAPESP 2021/11443-7, FAPESP-CEPID 2021/10599-3, CAPES, and Termomecanica São Paulo S/A. Antibiotics 2025, 14, 1170 22 of 30 Conflicts of Interest: Marcio Rodrigues Silva, Vinicius T. Santos, and Flavia G. Lobo are employed by the company Termomecanica São Paulo S/A. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

  generalfuture workevidence 5/5
  Keywords: cunps antimicrobial synthesis paulo antibiotics efficacy effects need risk assessment regulatory fapesp termomecanica statement copper
• Green-Synthesized Copper and Copper Oxide Nanoparticles: Structural Characterization and Evaluation of Biological Activity (2026) · Antioxidants · cited 17× · doi

  addressing challenges concerning reproducibility, mechanistic understanding, standardization and toxicological evaluation, - investigating the effects of different plant extracts and precursor concentrations on nanoparticle formation, - exploring the potential applications of copper-based nanoparticles in biomedical fields

  generalfuture-work sectionevidence 5/5
  Keywords: addressing challenges concerning reproducibility mechanistic understanding standardization toxicological
• Green-Synthesized Copper and Copper Oxide Nanoparticles: Structural Characterization and Evaluation of Biological Activity (2026) · Antioxidants · cited 17× · doi

  The need for standardized methods for the synthesis and characterization of copper-based nanoparticles. The challenge of scaling up the biosynthesis method for industrial-scale applications. The need for further research on the toxicological evaluation and mechanistic understanding of the biosynthesized nanoparticles.

  generalstated challengesevidence 5/5
  Keywords: need standardized methods synthesis characterization copper-based nanoparticles challenge

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