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Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses

Platinum atom clusters (Pt nanoparticles, Pt-NPs) were produced selectively at one end of helical plant viruses, tobacco mosaic virus (TMV) and potato virus X (PVX), when platinum coordinate compounds were reduced chemically by borohydrides. Size of the platinum NPs depends on conditions of the elec...

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Autores principales: Drygin, Yuri, Kondakova, Olga, Atabekov, Joseph
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800660/
https://www.ncbi.nlm.nih.gov/pubmed/24187551
http://dx.doi.org/10.1155/2013/746796
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author Drygin, Yuri
Kondakova, Olga
Atabekov, Joseph
author_facet Drygin, Yuri
Kondakova, Olga
Atabekov, Joseph
author_sort Drygin, Yuri
collection PubMed
description Platinum atom clusters (Pt nanoparticles, Pt-NPs) were produced selectively at one end of helical plant viruses, tobacco mosaic virus (TMV) and potato virus X (PVX), when platinum coordinate compounds were reduced chemically by borohydrides. Size of the platinum NPs depends on conditions of the electroless deposition of platinum atoms on the virus. Results suggest that the Pt-NPs are bound concurrently to the terminal protein subunits and the 5′ end of encapsidated TMV RNA. Thus, a special structure of tobacco mosaic virus and potato X virus particles with nanoparticles of platinum, which looks like a push-pin with platinum head and virus needle, was obtained. Similar results were obtained with ultrasonically fragmented TMV particles. By contrast, the Pt-NPs fully filled the central axial hole of in vitro assembled RNA-free TMV-like particles. We believe that the results presented here will be valuable in the fundamental understanding of interaction of viral platforms with ionic metals and in a mechanism of nanoparticles formation.
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spelling pubmed-38006602013-11-02 Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses Drygin, Yuri Kondakova, Olga Atabekov, Joseph Adv Virol Research Article Platinum atom clusters (Pt nanoparticles, Pt-NPs) were produced selectively at one end of helical plant viruses, tobacco mosaic virus (TMV) and potato virus X (PVX), when platinum coordinate compounds were reduced chemically by borohydrides. Size of the platinum NPs depends on conditions of the electroless deposition of platinum atoms on the virus. Results suggest that the Pt-NPs are bound concurrently to the terminal protein subunits and the 5′ end of encapsidated TMV RNA. Thus, a special structure of tobacco mosaic virus and potato X virus particles with nanoparticles of platinum, which looks like a push-pin with platinum head and virus needle, was obtained. Similar results were obtained with ultrasonically fragmented TMV particles. By contrast, the Pt-NPs fully filled the central axial hole of in vitro assembled RNA-free TMV-like particles. We believe that the results presented here will be valuable in the fundamental understanding of interaction of viral platforms with ionic metals and in a mechanism of nanoparticles formation. Hindawi Publishing Corporation 2013 2013-09-25 /pmc/articles/PMC3800660/ /pubmed/24187551 http://dx.doi.org/10.1155/2013/746796 Text en Copyright © 2013 Yuri Drygin et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Drygin, Yuri
Kondakova, Olga
Atabekov, Joseph
Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title_full Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title_fullStr Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title_full_unstemmed Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title_short Production of Platinum Atom Nanoclusters at One End of Helical Plant Viruses
title_sort production of platinum atom nanoclusters at one end of helical plant viruses
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800660/
https://www.ncbi.nlm.nih.gov/pubmed/24187551
http://dx.doi.org/10.1155/2013/746796
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