Effect of aqueous medium on low

Virus catalytic activity glass transition low-frequency phonon mode lysozyme

Journal

Journal of biomolecular structure & dynamics
ISSN: 1538-0254
Titre abrégé: J Biomol Struct Dyn
Pays: England
ID NLM: 8404176

Informations de publication

Date de publication:
05 2020
Historique:
pubmed: 11 6 2019
medline: 22 6 2021
entrez: 11 6 2019
Statut: ppublish

Résumé

In this work, we have studied the effect of size and aqueous medium on the low-frequency dynamics, physical properties like melting temperature and glass transition temperature and chemical properties like catalytic activation energy of spherical virus using Lindemann's criteria and Arrhenius relation under their dynamic limit. The melting temperature and catalytic activation energy decrease with decreasing size of spherical virus. The glass transition temperature which increases with decreasing size of the virus is analyzed through the size dependent melting temperature. The melting temperature and catalytic activation energy of spherical virus of particular size increases when it is embedded in glycerol or water due to mismatch of the physical properties at the interface of virus and surrounding medium. In addition, the glass transition temperature of free and glycerol/water embedded virus using low-frequency vibrational modes has been calculated under the framework of elastic continuum approximation model. The glass transition temperature of spherical virus decreases with size when embedded in glycerol or water. A correlation between [Formula: see text] and [Formula: see text] is also drawn for spherical viruses. The study can be useful for spherical virus borne therapy i.e. in detecting and killing of the spherical viruses using a principle based on acoustic phonons (sound waves) resonance.Communicated by Ramaswamy H. Sarma.

Identifiants

pubmed: 31179877
doi: 10.1080/07391102.2019.1626286
doi:

Substances chimiques

Water 059QF0KO0R
Glycerol PDC6A3C0OX

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

2207-2214

Auteurs

Chetna Tiwari (C)

Department of Applied Physics, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, India.
Department of Physics, Faculty of Science, The M.S. University of Baroda, Vadodara, India.

Vaishali Sharma (V)

Department of Physics, Faculty of Science, The M.S. University of Baroda, Vadodara, India.

Prafulla K Jha (PK)

Department of Physics, Faculty of Science, The M.S. University of Baroda, Vadodara, India.

Arun Pratap (A)

Department of Applied Physics, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, India.

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Classifications MeSH