Nanoparticle composite TPNT1 is effective against SARS-CoV-2 and influenza viruses.
Sci Rep
; 11(1): 8692, 2021 04 22.
Article
in English
| MEDLINE | ID: covidwho-1199310
ABSTRACT
A metal nanoparticle composite, namely TPNT1, which contains Au-NP (1 ppm), Ag-NP (5 ppm), ZnO-NP (60 ppm) and ClO2 (42.5 ppm) in aqueous solution was prepared and characterized by spectroscopy, transmission electron microscopy, dynamic light scattering analysis and potentiometric titration. Based on the in vitro cell-based assay, TPNT1 inhibited six major clades of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with effective concentration within the range to be used as food additives. TPNT1 was shown to block viral entry by inhibiting the binding of SARS-CoV-2 spike proteins to the angiotensin-converting enzyme 2 (ACE2) receptor and to interfere with the syncytium formation. In addition, TPNT1 also effectively reduced the cytopathic effects induced by human (H1N1) and avian (H5N1) influenza viruses, including the wild-type and oseltamivir-resistant virus isolates. Together with previously demonstrated efficacy as antimicrobials, TPNT1 can block viral entry and inhibit or prevent viral infection to provide prophylactic effects against both SARS-CoV-2 and opportunistic infections.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Silver
/
Zinc Oxide
/
Influenza A Virus, H1N1 Subtype
/
Influenza A Virus, H5N1 Subtype
/
SARS-CoV-2
/
Gold
Type of study:
Experimental Studies
Limits:
Humans
Language:
English
Journal:
Sci Rep
Year:
2021
Document Type:
Article
Affiliation country:
S41598-021-87254-3
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