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Antimicrobial second skin using copper nanomesh.

Jae Joon Kim1, Siyoung Ha2, Lina Kim2

  • 1Department of Electrical Engineering and Information Systems, The University of Tokyo, Bunkyo-Ku, Tokyo 113-8656, Japan.

Proceedings of the National Academy of Sciences of the United States of America
|June 9, 2022
PubMed
Summary
This summary is machine-generated.

A novel copper nanomesh platform effectively prevents pathogen cross-infection on skin. This antimicrobial material maintains skin

Keywords:
antimicrobial performancebreathabilitycopper coatingcross-infection preventionnanofiber mesh

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Area of Science:

  • Bioengineering
  • Materials Science
  • Infectious Disease Prevention

Background:

  • Achieving functional skin support while maintaining natural skin properties is a key bioengineering goal.
  • Current antimicrobial methods for skin lack long-term wearability and can compromise natural skin functions.
  • Preventing cross-infection without altering skin conditions remains a significant challenge.

Purpose of the Study:

  • To develop and evaluate a novel antimicrobial skin protection platform using copper nanomesh.
  • To assess the efficacy of copper nanomesh in preventing cross-infection by bacteria and viruses.
  • To determine the impact of copper nanomesh on skin's natural functions, including temperature and humidity.

Main Methods:

  • Fabrication of a thin and porous copper nanomesh.
  • Testing antimicrobial activity against *Escherichia coli* and influenza virus A.
  • Evaluating the effect of nanomesh on skin temperature change rate and humidity.
  • Conducting on-hand experiments to demonstrate cross-infection prevention and thermal transfer.

Main Results:

  • Copper nanomesh achieved 99.99% inactivation of *Escherichia coli* within 1 minute and influenza virus A within 10 minutes.
  • The nanomesh demonstrated conformal coating on fingertips with minimal interference with skin temperature and humidity.
  • Experiments confirmed efficient cross-infection prevention and thermal transfer capabilities of the copper nanomesh.

Conclusions:

  • Copper nanomesh serves as an effective antimicrobial skin protection platform.
  • This technology prevents cross-infection while preserving essential skin functions like temperature and humidity regulation.
  • The developed copper nanomesh offers a promising solution for long-term, comfortable antimicrobial skin protection.