Colloids and Surfaces A 538 (2018) 184–191 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Research Paper Imidazolium based ionic liquid induced DNA gelation at remarkably low concentration ⁎ ⁎⁎ a b,c, d e a,b, Pankaj Kumar Pandey , Kamla Rawat , V.K. Aswal , J. Kohlbrecher , H.B. Bohidar School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India Special Center for Nanosciences, Jawaharlal Nehru University, New Delhi 110067, India Inter University Accelerator Centre, New Delhi 110067, India State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India Laboratory for Neutron Scattering, Paul Scherrer Institut, Villigen, Switzerland GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: DNA dissolved in 1.0% (w/v) aqueous solution of ionic liquid (IL, 1-octyl-3-methylimidazolium chloride, DNA [C8mim][Cl]) showed gelation transition at a remarkably low concentration of [DNA] ≈ 0.3% (w/v) unlike in Ionogels hydrogels where gelation occurs ≥ 2.0% (w/v). Thus, the IL induced gelation was observed at 85% lower Ionic liquids concentration. These ionogels were probed in the 0.1%–1.0% (w/v) concentration region of DNA where the Structure hydrogels never form. The gelation temperature T (and gel strength G ,G is low frequency storage modulus) gel 0 0 Gelation
Geoderma – Elsevier
Published: Feb 15, 2019
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