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Potent antiviral effect of silver nanoparticles on SARS-CoV-2.

Abstract：

:The pandemic of COVID-19 is spreading unchecked due to the lack of effective antiviral measures. Silver nanoparticles (AgNP) have been studied to possess antiviral properties and are presumed to inhibit SARS-CoV-2. Due to the need for an effective agent against SARS-CoV-2, we evaluated the antiviral effect of AgNPs. We evaluated a plethora of AgNPs of different sizes and concentration and observed that particles of diameter around 10 nm were effective in inhibiting extracellular SARS-CoV-2 at concentrations ranging between 1 and 10 ppm while cytotoxic effect was observed at concentrations of 20 ppm and above. Luciferase-based pseudovirus entry assay revealed that AgNPs potently inhibited viral entry step via disrupting viral integrity. These results indicate that AgNPs are highly potent microbicides against SARS-CoV-2 but should be used with caution due to their cytotoxic effects and their potential to derange environmental ecosystems when improperly disposed.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Jeremiah SS,Miyakawa K,Morita T,Yamaoka Y,Ryo A

doi

10.1016/j.bbrc.2020.09.018

subject

Has Abstract

pub_date

2020-11-26 00:00:00

pages

195-200

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(20)31757-5

journal_volume

533

pub_type

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