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Research

Surface Inactivation of Human Coronavirus by MACOMA™ UVA-TiO2 Coupled Photocatalytic Disinfection System

Abstract: There is an immense healthcare challenge and financial pressure due to the COVID-19 pandemic caused by a newly identified human coronavirus, SARS-CoV-2. Effective COVID-19 prevention efforts in healthcare, home, and community settings highlight the need for rapid, efficient, and no-contact SARS-CoV-2 inactivation strategies. Here, we examined the photocatalytic and virucidal activity of the MACOMA™ TiO2 photocatalytic film activated by an UVA-LED-12V-367nm (MA-717836-1) lamp against the HCoV-OC43, a member of the beta coronaviruses family, like SARS-CoV-2, using quantitative RT-qPCR and virus infectivity assays. The UVA radiation-responsive TiO2 film accelerated virus inactivation (decreased viral titer) compared to the uncoated glass surface when placed at a vertical distance of 1.2 feet (~14inches) from virus samples for 10, 30, and 60 min. UVA-LED exposure for both 10 and 30 min effectively reduced the viral RNA copies and the infectious virus in samples on TiO2-coated surfaces compared to the control surfaces. Importantly, a 60 min exposure of samples on the TiO2 completely eliminated HCoV-OC43. These results confirmed that the MACOMA™ UVA/TiO2-based disinfection system provides a rapid and complete surface inactivation of tested human coronavirus in a human-safe manner and has great potential for limiting the virus spread in poorly ventilated as well as high-traffic public places.

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Headquarters

Applied Research Facility
1664 N Virginia St # 112
Reno NV 89557, USA
+1 775-410-2408
+1 702-951-1401
contactus@macoma.us

Argentina Branch

Parque Industrial de la Innovación Posadas
229 Nemesio Parma 3300
Posadas, Misiones, Argentina
+54 3764 63-5556
+54 3764-489717

Paraguay Branch

Argentina implementará los primeros techos fríos de LATAM

May 9th 2023

Avances hacia la primera isla de Techos Fríos de viviendas sociales en Latinoamérica

May 9th 2023

Argentina implementará los primeros techos fríos de LATAM

May 9th 2023

MACOMA is aligned with eight of the Sustainable Development Goals (SDGs) set forth by the United Nations General Assembly, which aim to promote sustainable development worldwide.

By committing to these goals, we aim to play our part in creating a sustainable future for all.

CÁMARA DE REPRESENTANTES DE LA PROVINCIA DE MISIONES, ARGENTINA

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Headquarters

Applied Research Facility
1664 N Virginia St # 112
Reno NV 89557, USA
+1 775-410-2408
+1 702-951-1401
contactus@macoma.us

Argentina Branch

Parque Industrial de la Innovación Posadas
229 Nemesio Parma 3300
Posadas, Misiones, Argentina
+54 3764 63-5556
+54 3764-489717

Paraguay Branch