DataVXACS Applied Nano MaterialsPaper
journal article·2021-11-26Open access

Polyamide Nanofiber-Based Air Filters for Transparent Face Masks

Joshua Avossa, Till Batt, Thierry Pelet, Sacha P. Sidjanski, Klaus Schönenberger, René M. Rossi

ACS Applied Nano Materials· Volume 4· Issue 11
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Source abstract

Abstract

Transparent face masks are the ultimate solution for improving communication during pandemic times while at the same time slowing the spread of pathogens. Here, we demonstrate an easily scalable process consisting of directly electrospinning polyamide nanofibers onto a mechanical stable substrate made of poly(lactic acid) by a needleless setup for the production of transparent filter material. Filtration tests against NaCl and fructose aerosols and pressure drop tests were performed and compared with the European standard for medical face masks (EN 14683:2019) and the Swiss rule for community masks (SNR 30000:2021). The filter showed outstanding transparency (∼70% transmittance in the visible-light range), 89% filtration efficiency against PM1.0, and a pressure drop of 6.5 Pa/cm2.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Infection Control and Ventilation · Additive Manufacturing and 3D Printing Technologies · Dental Research and COVID-19

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland

EPFL, Ecole Polytechnique Fédérale de Lausanne, EssentialTech Centre, Station 10, 1015 Lausanne, Switzerland

HMCARE SA, Campus Biotech Innovation Park, Av. de Sécheron 15, 1202 Geneva, Switzerland

EPFL, Ecole Polytechnique Fédérale de Lausanne, School of Life Sciences SV-DO, Station 19, 1015 Lausanne, Switzerland

Funding

Innosuisse - Schweizerische Agentur f??r Innovationsf??rderung

References (23)

Show source-provided references
1. 10.1021/acsami.1c0652010.1021/acsami.1c06520 ↗
2. Alexander C. · 2009 · 29
3. 10.18063/ijb.v6i4.27810.18063/ijb.v6i4.278 ↗
4. 10.1021/acsami.9b0568610.1021/acsami.9b05686 ↗
5. 10.1021/acsami.0c0169710.1021/acsami.0c01697 ↗
6. 10.1016/j.eurpolymj.2016.01.00110.1016/j.eurpolymj.2016.01.001 ↗
7. 10.1186/s11671-019-3199-010.1186/s11671-019-3199-0 ↗
8. 10.1016/j.isci.2019.07.02010.1016/j.isci.2019.07.020 ↗
9. 10.1021/acs.nanolett.5b0459610.1021/acs.nanolett.5b04596 ↗
10. 10.1016/j.buildenv.2020.10672510.1016/j.buildenv.2020.106725 ↗
11. 10.1039/D0RA01967D10.1039/D0RA01967D ↗
12. 10.1016/j.jcis.2020.08.07510.1016/j.jcis.2020.08.075 ↗
13. 10.1016/j.jhazmat.2019.12153510.1016/j.jhazmat.2019.121535 ↗
14. 10.1038/ncomms720510.1038/ncomms7205 ↗
15. 10.3390/polym1009099610.3390/polym10090996 ↗
16. 10.1016/j.matlet.2018.03.11010.1016/j.matlet.2018.03.110 ↗
17. European Committee for Standardization (Brussels). Requirements and Test Methods; English Version EN 14683:2019 + AC:2019, English Translation of DIN EN 14683:2019-10, 2019.
18. Swiss Association for Standardization. Community Masks─Basic Requirements and Test Procedures, Swiss Rule SNR30000:2021, 2021.
19. 10.1016/j.compscitech.2020.10812610.1016/j.compscitech.2020.108126 ↗
20. 10.1039/C6GC00611F10.1039/C6GC00611F ↗
21. Video of single-wire needleless electrospinning from Elmarco, https://www.youtube.com/watch?v=IRc120Ceq9o (accessed July 2, 2021).
22. 10.5772/6733810.5772/67338 ↗
23. Iranshahi K. · Mater. Des. · 2021