Photocatalytic Material Surfaces for SARS-CoV-2 Virus Inactivation

Technical Report · Thu Oct 01 00:00:00 EDT 2020

DOI:https://doi.org/10.2172/1669200· OSTI ID:1669200

Negrete, Oscar ^[1]; Bradfute, Steven ^[1]; Larson, Steven Robert ^[1]; Sinha, Anupama ^[1]; Coombes, Kenneth Roy ^[1]; Goeke, Ronald S. ^[1]; Keenan, Lisa Anne ^[1]; Duay, Jonathon ^[1]; Van Heukelom, Michael Shane ^[1]; Rodriguez, Mark ^[1]; Meserole, Stephen ^[1]; Jacobs-Gedrim, Robin Bay ^[1]

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1. Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) can be spread through close contact or through fomite mediated transmission. This study details the fabrication and analysis of a photocatalyst surface which can rapidly inactivate SARS-COV-2 to limit spread of the virus by fomite mediated transmission. The surface being developed at Sandia for this purpose is a minimally hazardous Ag-Ti0 ₂ nanomaterial which is engineered to have high photocatalytic activity. Initial results at Sandia California in a BSL-2 safe surrogate virus- Vesicular Stomatitis Virus (VSV) show a significant difference between the photocatalyst material under exposure to visible light than controls. Additionally, UV-A light (365 nm) was found to eliminate SARS-COV-2 after 9 hours on all tested surfaces with irradiance of 15 mW/cm ² equivalent to direct circumsolar irradiance.

• Research Organization: Sandia National Laboratories (SNL-CA), Livermore, CA (United States); Sandia National Laboratories, Albuquerque, NM
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1669200
• Report Number(s): SAND--2020-9861; 690954
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
SARS-COV-2