Colloids

Polymer grafted nanoparticles as separation and fuel cell membranes

Polymer membranes are popular in separation and fuel cell applications.  Moreover, nanoparticle-filled polymer membranes can simultaneously improve properties such as permeability and selectivity.  The challenge lies in stabilizing these membranes against phase separation.  Recent progress in grafting polymer onto the surface of nanoparticles may mitigate some of these challenges.  This project uses statistical mechanics to study the efficacy of grafted nanoparticles as effective membrane materials.

Basic programming ability is needed. 

Proposing Faculty
Research Area
  • Colloids
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Porous Media
  • Separations
  • Statistical Themodynamics

Crystallization induced structure development in polymer nanocomposites

In polymer nanocomposites, inorganic nanoparticles are
dispersed in a polymer matrix to prepare materials with superior engineering
properties. Of particular interest are a novel class of materials, called
polymer grafted nanoparticles. These are nanoparticles that comprise an
inorganic core covalently tethered to a shell of polymer chains. Dispersion of
polymer grafted nanoparticles in a polymeric matrix is facilitated by favourable
interactions between the grafted shell and the matrix. In particular, when the  read more »

Proposing Faculty
Research Area
  • Colloids
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Polymer Processing
  • Rheology
Guruswamy Kumaraswamy

Microfluidic device for cell identification and counting

The goal of the project is to develop a microfluidic device for cell identification and counting. We will start with developing Coulter counter on a microfluidic device and identify sizes of both particles and cells. Next, we will develop impedance spectroscopy to identify cells both by their size and contents. The eventual goal would be to develop a blood cell counter on the microfluidic platform. The project is primarily experimental in nature though some theoretical work may be expected. This is a collaborative project with Prof P Sunthar.

Proposing Faculty
Research Area
  • Colloids
  • Electrohydrodynamics

Topic 2: Design and operation of a gravity-driven packed-bed filter for high throughput water disinfection by nanoparticles



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EN-US  read more »

Proposing Faculty
Research Area
  • Adsorption
  • Colloids
  • Computational Flow Modelling (CFD)
  • Porous Media

Topic 1: Functional Nanoparticles: Experiments, modeling, simulation

Nanoparticles and their clusters show new and interesting properties different from bulk
materials due to their extremely small size (diameter) and large specific
surface area. It is thus critical to understand the variables that control
its formation leading to a desired property. Control of nanoparticle size,  read more »

Proposing Faculty
Research Area
  • Colloids
  • Computational Flow Modelling (CFD)
  • Molecular Simulations
  • Nano-composites
  • Nanoparticles
  • Reactor Modelling
  • Surface Science
  • Surfactants

Film formation and anti-microbial studies of nano-composite coatings (Joint supervision with Prof. Mahesh Tirumkudulu)

Preventing or
inhibiting the growth of micro-organisms on surfaces is of prime importance in
the healthcare and textile industries. A promising strategy to overcome
microbial growth involves coating the surfaces with materials that can provide
resistance to microbial colonization. Inorganic nano materials and organic
materials with inorganic inclusions are being widely used as anti-microbial  read more »

Proposing Faculty
Research Area
  • Coatings
  • Colloids

The phase behavior of connected hard and soft particles.

A surprising new development in materials science and chemical engineering is the finding that mixtures of hard (colloidal), and soft (polymeric, or micellar) particles can self organize in length scale much larger than the diameter of either species.  In this project we explore the behavior of connected hard- and soft particles.  An elementary knowledge of coding is sufficient.

Proposing Faculty
Research Area
  • Biomaterials
  • Colloids
  • Molecular Simulations
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Statistical Themodynamics
  • Surface Science

The role of impurities in the self-assembly of polymer-grafted nanoparticles.

Traditionally, self-assembled structures are formed using chemical differences within a species.  Examples of this are the formation of micelles by detergents, and the formation of the phospholipid bilayer of the cell membrane.  In these systems, it is the tendency to the hydrophobic and hydrophilic part to avoid each other that result in the  self-assembled state.  However, a recent study (http://pubs.rsc.org/en/content/articlehtml/2017/sm/c7sm00230k) has pointed out that it is possible to form self-assembled states without any chemical differences.  This project focuses on how the prese  read more »

Proposing Faculty
Research Area
  • Colloids
  • Molecular Simulations
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Statistical Themodynamics

The role of shape in the self-assembly of polymer-grafted nanoparticles.

Traditionally, self-assembled structures are formed using chemical differences within a species.  Examples of this are the formation of micelles by detergents, and the formation of the phospholipid bilayer of the cell membrane.  In these systems it is the tendency to the hydrophobic and hydrophilic part to avoid each other that result in the self-assembled state.  However, a recent study (http://pubs.rsc.org/en/content/articlehtml/2017/sm/c7sm00230k) has pointed out that it is possible to form self-assembled states without any chemical differences.  Rather, it is possible to form such stru  read more »

Proposing Faculty
Research Area
  • Colloids
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Statistical Themodynamics