Rama Bansil

Rama Bansil

Office: SCI, Room 216. 617-353-2969
Lab: SCI, Room 228. 617-353-9465
Email:

 

Research Interests:

Studies of Gels

Our primary interest is in gels, which are found in numerous products of daily use. These have fascinating visco-elastic properties, fundamentally different than solids or liquids. My laboratory is devoted to interdisciplinary research ranging from Polymer Physics to Biophysics. Through a variety of experimental methods such as light scattering, small-angle X-ray and neutron scattering, and microscopy complemented by computer simulations of model gels, my group has elucidated the structure of gels at the molecular level, the physics of gel formation, diffusion in gels and the kinetics of phase transitions and chemical reactions in gels. Current research projects include the phase behavior of multiblock copolymer gels and their application to develop templates for nanoscale devices.

Selected Publications:

“Folding of pig gastric mucin non-glycosylated domains: a discrete molecular dynamics study” Barz, Bogdan; Turner, Bradley S.; Bansil, Rama; et al. Journal of Biological Physics 38, 4, 681-703, 2012

“Kinetics of phase transition from lamellar to hexagonally packed cylinders for a triblock copolymer in a selective solvent” Liu, Yongsheng; Li, Minghai; Bansil, Rama; et al. Macromolecules 40, 26, 9482-9490, 2007

“Rheology of Gastric Mucin Exhibits a pH-Dependent Sol-Gel Transition”, J. Celli, B. Turner, N. H. Afdhal, R. H. Ewoldt, G. H. McKinley, R. Bansil, S. Erramilli, Biomacromolecules 8, 5, 1580, 2007

“Kinetics of disorder-to-fcc phase transition via an intermediate bcc state”, Y. Liu, H. Nie, R. Bansil, M. Steinhart, J. Bang, T. P. Lodge, Physical Review E, 73, 6, 61803, 2006

“Electrolysis induces pH gradients and domain orientation in agarose gels”, A. Michelman Ribeiro, R. Nossal, R. Morris, S. Lange, C. Kuo, R. Bansil, Physical Review E, 73, 1, 11410, 2006

For a full list of publications, please see the attached CV.

Education:

  • Ph.D. in Physics, University of Rochester
  • M.Sc in Physics, Delhi University
  • B.Sc with honors in Physics, Delhi University

Honors/Awards:

  • Fellow of the American Physical Society

In the news:

Research Descriptions:

Experimental Studies of Gels

Rama Bansil’s primary interest is in gels, which are found in numerous products of daily use, have fascinating visco-elastic properties, fundamentally different than solids or liquids. Bansil’s laboratory is devoted to interdisciplinary research ranging from Polymer Physics to Biophysics. Through a variety of experimental methods such as light scattering, small-angle X-ray and neutron scattering, and microscopy complemented by computer simulations of model gels, Bansil’s group has elucidated the structure of gels at the molecular level, the physics of gel formation, diffusion in gels and the kinetics of phase transitions and chemical reactions in gels. Current research projects include the phase behavior of multiblock copolymer gels and their application to develop templates for nanoscale devices. Many living tissues are in the form of gels, which has excited a great deal of interest as a substrate for tissue regeneration. Bansil and her collaborators at Harvard Medical School have focused their attention on understanding the role that gelation of mucin (a glycoprotein found in the mucus layer) plays in preventing the stomach from being digested by the highly acidic gastric juice that it secretes. Their studies using dynamic light scattering and atomic force microscopy have contributed to a detailed mechanism of how mucin molecules gel under acidic conditions.