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Enhancement of antiviral drug efficacy through multimodal mechanism of Au nanoparticles decorated ZnO tetrapods
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.ORCID iD: 0000-0003-4879-2302
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(English)Manuscript (preprint) (Other academic)
Abstract [en]

Nanoparticles have been well studied for controlling viral infections. However, very little knowledge exists on their potential use as an adjuvant for enhancing antiviral drug efficacy and reducing toxicity. Herein, we describe gold nanoparticle decorated zinc oxide tetrapods (ANZOT) that electrostatically neutralize viral infections. Given their negative charge distribution caused by engineered oxygen vacancies, ANZOT can prevent herpes simplex virus-1 and the novel human coronavirus, SARS-CoV-2 from infecting cells. More notably, when ANZOT was used as an adjuvant, several fold lower than normally used concentrations of a nucleoside analog, acyclovir or a preclinical antiviral compound, BX795, were enough to inhibit infection and eliminate drug toxicity. BX795 was found to exert its antiviral benefits through inhibition of cellular protein kinase C (α and ζ). Cumulatively our findings highlight an innovative use of ANZOT as a drug adjuvant for superior broad-spectrum effects against viral infections.

Keywords [en]
Herpesvirus, BX795, Zinc Oxide Tetrapod, gold nanoparticles, antiviral, virus neutralization
National Category
Pharmaceutical Sciences
Research subject
Pharmaceutical Science
Identifiers
URN: urn:nbn:se:uu:diva-496207OAI: oai:DiVA.org:uu-496207DiVA, id: diva2:1735196
Available from: 2023-02-08 Created: 2023-02-08 Last updated: 2023-02-13Bibliographically approved
In thesis
1. GENOME2QUNOME: Interfacing Molecules with Nanomaterials
Open this publication in new window or tab >>GENOME2QUNOME: Interfacing Molecules with Nanomaterials
2023 (English)Doctoral thesis, comprehensive summary (Other academic) [Artistic work]
Abstract [en]

The advent of technological furtherance in the biomedical sector and the renaissance of interdisciplinary science enable us to comprehend human lifestyle, and diseases at molecular and nanoscale levels. Lacking a shared theoretical foundation and terminological lexicon between various scientific domains might impede efforts to incorporate biological principles into nanoscience. In retrospect, it's possible to draw some instructive learnings from the fact that the development of contemporary nanoscience and biology was the consequence of the convergence of fields that had previously been kept separate. 

In this Ph.D. thesis, I have given the catchy moniker “GENOME2QUNOME” (an acronym for "Genetic organization of multicellular organisms and their enzymatic reaction 2 Quantum nanostructured materials for energy scavenging applications"), encompassing a combinatorial approach using computational methodologies in biophysics and nano/materials science. Structure-property correlations, a unifying paradigm based on understanding how nanomaterials behave and what qualities they exhibit at the molecular and nanoscale levels, are now widely acknowledged and are critical in the incorporation of bioinspired materials into nanoscience. Therefore, a unified framework have been elucidated in this thesis for the study of nanoscale materials ranging from 0D to 3D that may be useful in combining various strategies that characterize this interdisciplinary approach. 

This thesis is also a part of broader interdisciplinary research strategy aimed at depicting electronic transport in the nanoscale regime, elucidating interface mechanisms for contact electrification, and understanding the complex architectures of nanomaterials. The central hypothesis of this thesis is concentrated on the behavioral transition from the nanoscale regime to macromolecules, which is fascinating in real world scenario but theoretically challenging to bring it in reality or practice. To bridge this gap, I have made an attempt by integrating a wide range of computational methods, ranging from density functional theory (DFT) for systems with few atoms to classical dynamics dealing with billions of atoms. 

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2023. p. 100
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 2240
Keywords
Electronic transport, Contact electrification, Nanomaterials, Zinc Oxide, Tetrapods, 2D-materials, Density functional theory, Non-equilibrium Green's function, Molecular docking, Molecular dynamics simulation
National Category
Condensed Matter Physics Biophysics
Research subject
Materials Science; Theoretical Physics; Physics with specialization in Biophysics
Identifiers
urn:nbn:se:uu:diva-496330 (URN)978-91-513-1716-8 (ISBN)
Public defence
2023-03-31, Häggsalen, 10132, Ångström, Ångströmlaboratoriet Lägerhyddsvägen 1 752 37 Uppsala, Uppsala, 09:15 (English)
Opponent
Supervisors
Funder
Swedish Research Council, 2016-06014
Available from: 2023-03-07 Created: 2023-02-10 Last updated: 2025-02-20

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Panda, Pritam KumarAhuja, Rajeev

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