Hierarchical Self-Assembly in DNA Ionogel: Effect of γ-Radiation on Gel Properties

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Authors

  • Pankaj Kumar Pandey
     School of Physical Sciences, Jawaharlal Nehru University, New Delhi - 110067 ,IN
  • Kamla Rawat
     Department of Chemistry, School of Chemical and Life Sciences, Jamia Hamdard, Delhi - 110062 ,IN
  • H. B. Bohidar
     School of Physical Sciences, Jawaharlal Nehru University, New Delhi - 110067 ,IN

DOI:

https://doi.org/10.18311/jsst/2021/26297

Keywords:

DNA Ionogel, Gelation, γ-radiation, Ionizing Radiation
Polymer Science

Abstract

DNA ionogels prepared by adding 1-ethyl-3-methylimidazolium chloride on low energy gamma irradiated DNA solution samples reveal non-trivial self-assembly. Variations in secondary structure and low-frequency gel rigidity modulus G0 captured this unique hitherto unexplored features of these gels. Interestingly, at higher radiation dose (0 to 100 Gy) samples could partially lose their initial rigidity. Dynamic light scattering revels dose dependent relaxation dynamics corresponding to ergodicity breaking time. In particular, viscosity and rheology showed that the time of gelation tgel, temperature of gelation Tgel and strength of gelation G0 are gamma ray dose dependent. DNA Ionogel melting with temperature shows self-assembled characteristics of this biomaterial. Gelation kinetics of ionizing radiation treated DNA strands have been studied in literature.

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Published

2023-02-15

How to Cite

Pandey, P. K., Rawat, K., & Bohidar, H. B. (2023). Hierarchical Self-Assembly in DNA Ionogel: Effect of γ-Radiation on Gel Properties. Journal of Surface Science and Technology, 37(3-4), 179–185. https://doi.org/10.18311/jsst/2021/26297

Issue

Volume 37, Issue 3-4, December 2021

Section

Articles
Crossref
Scopus
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Europe PMC
Received 2020-10-24
Accepted 2022-04-26
Published 2023-02-15

 

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