JD

JOYKRISHNA DEY

Indian Institute of Technology Kharagpur, Indian Institute of Technology Kanpur

ORCID iD 0000-0001-8357-5560
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About

A major area of my research is concerned with the self-assemblies (such as micelles, vesicles, etc.) of synthetic surfactants, especially chiral surfactants. With a wide range of techniques available it is natural that we cover a wide range of problems. My group is interested in how molecular geometry affects the association properties of ionic surfactants in aqueous and saline solutions. This is primarily achieved by the use of fluorescence, rheology, static and dynamic light scattering, and electron and optical microscopy.
One of the areas my group currently focusing attention on is drug and gene delivery using stimuli-responsive (pH, temperature, etc.) vesicles and hydrogels. Our aim is to prepare stable unilamellar vesicles and hydrogels of amphiphilic molecules that can be used for drug/gene delivery, formulations of healthcare products, and water pollution control. Our research activities also include the investigation of polymer dynamics in aqueous solutions. Water-soluble polymers constitute an important class of material that finds application in a wide variety of technologies concerned with, for example, the production of controlled-release systems, agrochemicals, adhesives, coatings, enhancers for oil recovery, foodstuffs, rheology modifiers, personal care products, superabsorbents, catalysis, inks, and coding systems. In recent years, increasing environmental pressure to utilize safer, "greener" working practices has resulted in a dramatic expansion in the use of such water-soluble/dispersible systems in industrial processes. Consequently, much effort has been directed, by both academics and industrialists alike, toward investigating and understanding the physical behavior and interactions of aqueous-borne macromolecules. Within this class of materials, water-soluble polymers that exhibit "smart" behavior (i.e. which have the ability to change their conformation in response to an external stimulus such as temperature or pH) are of particular interest. The use of fluorescence spectroscopy allows the examination of ultra-dilute polymer solutions, permitting the examination of purely intra-molecular effects.

Employment

  • Indian Institute of Technology Kharagpur Professor
    1998 - Present

Education

  • Indian Institute of Technology Kanpur PhD
    1986 - 1992

Projects & Funding

Projects & funding information is unavailable.

Publications (7)