Design of a self-powered triboelectric face mask

Area of Science:

• Materials Science
• Nanotechnology
• Public Health

Background:

• The widespread use of face masks is crucial for mitigating the SARS-CoV-2 pandemic.
• Existing mask designs require continuous improvement for better filtration and virus inactivation.

Purpose of the Study:

• To develop and evaluate a novel face mask incorporating a triboelectric nanogenerator (TENG) for combined filtration and SARS-CoV-2 deactivation.
• To assess the efficacy of different fabric pairs within the TENG system for optimal performance.

Main Methods:

• Design of a multilayer face mask with inner triboelectric (TE) filter layers and an outer electrocution layer (EL).
• Integration of a simple triboelectric nanogenerator (TENG) for self-powering the electrocution layer.
• Testing of four fabric pairs (PVC-nylon, PP-PU, latex rubber-PU, PI-nylon) to determine triboelectric series efficacy.
• Evaluation of viral particle deactivation via electric field generated by contact electrification.

Main Results:

• The proposed mask design effectively utilizes triboelectricity generated from daily movements (breathing, talking) to power an electrocution layer.
• The electrocution layer generates an electric field capable of deactivating viral particles upon contact.
• Various fabric combinations demonstrated potential for efficient triboelectric energy harvesting and filtration.

Conclusions:

• The developed TENG-integrated face mask offers a promising self-powering solution for enhanced SARS-CoV-2 filtration and deactivation.
• This innovative mask design has the potential to significantly contribute to controlling the spread of COVID-19.
• The self-powering functionality ensures sustained effectiveness, making it suitable for widespread public use.