Rapid and Effective Inactivation of SARS-CoV-2 with a Cationic Conjugated Oligomer with Visible Light: Studies of Antiviral Activity in Solutions and on Supports

Autor: Kemal Kaya, Mohammed Khalil, Benjamin Fetrow, Hugh Fritz, Pradeepkumar Jagadesan, Virginie Bondu, Linnea Ista, Eva Y. Chi, Kirk S. Schanze, David G. Whitten, Alison Kell
Přispěvatelé: Kaya, Kemal
Rok vydání: 2022
Předmět:
Zdroj: ACS Applied Materials & Interfaces
ISSN: 1944-8252
1944-8244
DOI: 10.1021/acsami.1c19716
Popis: This paper presents results of a study of a new cationic oligomer that contains end groups and a chromophore affording inactivation of SARS-CoV-2 by visible light irradiation in solution or as a solid coating on paper wipes and glass fiber filtration substrates. A key finding of this study is that the cationic oligomer with a central thiophene ring and imidazolium charged groups gives outstanding performance in both the killing of E. coli bacterial cells and inactivation of the virus at very short times. Our introduction of cationic N-methyl imidazolium groups enhances the light activation process for both E. coli and SARS-CoV-2 but dampens the killing of the bacteria and eliminates the inactivation of the virus in the dark. For the studies with this oligomer in solution at a concentration of 1 μg/mL and E. coli, we obtain 3 log killing of the bacteria with 10 min of irradiation with LuzChem cool white lights (mimicking indoor illumination). With the oligomer in solution at a concentration of 10 μg/mL, we observe 4 log inactivation (99.99%) in 5 min of irradiation and total inactivation after 10 min. The oligomer is quite active against E. coli on oligomer-coated paper wipes and glass fiber filter supports. The SARS-CoV-2 is also inactivated by oligomer-coated glass fiber filter papers. This study indicates that these oligomer-coated materials may be very useful as wipes and filtration materials. © 2022 American Chemical Society. All rights reserved.
Databáze: OpenAIRE
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