Omkar Deshmukh

Omkar Deshmukh
Indian Institute of Technology Guwahati | IIT Guwahati · Department of Chemical Engineering

PhD (Applied Physics)

About

12
Publications
2,359
Reads
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350
Citations
Citations since 2016
8 Research Items
326 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Introduction
I am currently an Assistant Professor in the Department of Chemical Engineering at IIT Guwahati. My research interests lie broadly in the field of Soft Matter. I am particularly interested in rheology and dynamics of various class of complex fluids such as dilute polymer solutions, polymer melts, dense colloidal suspensions etc. The prime focus of my lab will be using sophisticated experimental techniques to understand the behavior of colloids in complex environments.
Additional affiliations
July 2019 - December 2020
MITWPU
Position
  • Visiting Faculty
July 2015 - October 2018
The University of Queensland
Position
  • PostDoc Position
April 2015 - July 2015
CSIR - National Chemical Laboratory, Pune
Position
  • Research Associate
Education
November 2009 - December 2014
University of Twente
Field of study
  • Applied Physics
July 2006 - August 2008
Indian Institute of Technology Bombay
Field of study
  • Chemical Engineering
July 2002 - May 2006
University of Pune
Field of study
  • Chemical Engineering

Publications

Publications (12)
Article
Full-text available
Understanding the adsorption dynamics of soft microgel particles is a key step in designing such particles for potential applications as stimuli-responsive Pickering stabilizers for foams or emulsions. In this study we experimentally determine an equation of state (EOS) for Poly (N-isopropylacrylamide) (PNIPAM) microgel particles adsorbed onto an a...
Article
Soft microgel particles inherently possess qualities of both polymers as well as particles. We review the similarities and differences between soft microgel particles and stiff colloids at fluid-fluid interfaces. We compare two fundamental aspects of particle-laden interfaces namely the adsorption kinetics and the interactions between adsorbed part...
Article
We address the rheology of assemblies of surfactant-decorated silica nanoparticles irreversibly adsorbed at the gas/liquid interface. Positively charged surfactant molecules (such as CTAB) bind to silica nanoparticle surfaces and the resulting particle-surfactant complexes adsorb at gas/liquid interfaces. The surfactant molecules control the wettab...
Article
Full-text available
Mucus is characterized by multiple levels of assembly at different length scales which result in a unique set of rheological (flow) and mechanical properties. These physical properties determine its biological function as a highly selective barrier for transport of water and nutrients, while blocking penetration of pathogens and foreign particles....
Article
Oral processing of solid foods is an extremely dynamic and complicated activity that involves multiple processes in tandem such as comminution, mixing, dilution, hydration and enzymatic breakdown that gradually transform the food from a morsel or a bite to a bolus that is ready for swallowing. It is hypothesised that just after “first bite” and ini...
Article
Mucus plays an important role in the protection of the epithelial cells from various pathogens and low pH environments besides helping in the absorption of nutrients. Alteration of the rheology of the mucus layer leads to various disease conditions such as cystic fibrosis, Crohn's disease, and gastric ulcers, among others. Importantly, mucus consis...
Article
Many confectionary items and food components are based on complex suspensions of hydrophilic sugar particles in a hydrophobic fat phase. We hypothesise that the rheology of these suspensions is defined by either the Maron-Pierce-Quemada (MPQ) model, which theoretically predicts the viscosity of hard spheres, or by the percolation model describing a...
Article
The crosslinking of arabinoxylan chains with ferulic acid dimers in wheat endosperm cell walls is hypothesised to limit the swelling and solubilisation of cell wall polysaccharides. In this study, we report the changes in the rheological and chemical properties of cell walls isolated from wheat flour and purified endosperm after treatments intended...
Thesis
Full-text available
We investigate the use of soft microgel particles based on a thermosensitive poly- mer, poly-N-isopropylacrylamide (PNIPAM) to stabilize a fluid interface. We also study the effect of temperature on the adsorption kinetics and the interfacial behaviour of these particles on air-water and oil-water interfaces. To begin with we study the adsorption d...

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