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Radio Frequency Heating of Washable Conductive Textiles for Bacteria and Virus Inactivation
Ju Hyun Oh1, Aimee D Martinez1, Huaixuan Cao1
1Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas77843, United States.
ACS Applied Materials & Interfaces
|September 19, 2022
Summary
Reusable personal protective equipment (PPE) can now be rapidly sterilized using radio frequency (RF) heating of conductive fabrics. This innovative method effectively inactivates bacteria and viruses, addressing shortages of single-use medical supplies.
Area of Science:
- Materials Science
- Biotechnology
- Textile Engineering
Background:
- The COVID-19 pandemic highlighted supply chain vulnerabilities for single-use personal protective equipment (PPE).
- Sterilization challenges hinder the widespread adoption of reusable PPE.
- Developing rapid and effective sterilization methods for reusable medical textiles is crucial.
Purpose of the Study:
- To investigate the efficacy of radio frequency (RF) heating for rapid sterilization of conductive textiles.
- To assess the durability and repeatability of RF heating sterilization after repeated washing.
- To demonstrate bacterial and viral inactivation on RF-heated conductive fabrics.
Main Methods:
- Fabricating conductive polymer-coated textiles.
- Measuring RF heating performance across various fabric and coating compositions.
- Testing RF heating response after multiple detergent wash cycles.
- Evaluating bacterial (MRSA) and viral (HCMV) inactivation efficacy.
Main Results:
- Conductive textiles demonstrated consistent RF heating properties.
- RF heating performance remained robust after multiple wash cycles.
- 99.9% inactivation of methicillin-resistant Staphylococcus aureus (MRSA) achieved in 10 minutes.
- Complete sterilization of human cytomegalovirus (HCMV) achieved in 5 minutes.
Conclusions:
- RF heating of conductive polymer-coated fabrics offers a rapid and effective sterilization method for reusable PPE.
- This technology presents a viable solution to PPE shortages and sterilization challenges.
- Potential applications exist in both medical and electronic fields for conductive textiles.
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