Journal of Surface Science and Technology

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Dynamic Light Scattering and Viscometric Studies on the Interaction of Bacterial Capsular Polysaccharide, Klebsiella K40, with Pure and Mixed Surfactant Systems in Aqueous Media


Affiliations
1 Department of Chemistry, Tripura University, Suryamaninagar, Tripura-799 130, India
2 Deparatment of Chemistry, Gyan Jyoti College, Siliguri, West Bengal, India
3 Department of Chemistry, University of North Bengal, P.O. North Bengal University, D Darjeeling, West Bengal-734 430, India
     

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Capsular polysaccharide (SPS) is an integral component of gram negative bacteria, Klebsiella. The interaction of SPS isolated from Klebsiella K40 serotype with oppositely charged pure surfactants and cationic-nonionic mixed surfactants were investigated by dynamic light scattering and viscometric technique. Variation in the hydrodynamic radius and zeta potential were studied by dynamic light scattering method. Nature of the interaction is governed by concentration of the surfactants, charge density, surfactant head group and the CMC of the surfactants. Micellar effects of the pure and mixed surfactants on binding with the SPS are presented in this paper.

Keywords

Capsular Polysaccharide, Dynamic Light Scattering, Viscometry, CMC.
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  • Dynamic Light Scattering and Viscometric Studies on the Interaction of Bacterial Capsular Polysaccharide, Klebsiella K40, with Pure and Mixed Surfactant Systems in Aqueous Media

Abstract Views: 179  |  PDF Views: 2

Authors

Th. C. Singh
Department of Chemistry, Tripura University, Suryamaninagar, Tripura-799 130, India
R. K. Nath
Department of Chemistry, Tripura University, Suryamaninagar, Tripura-799 130, India
K. Manna
Deparatment of Chemistry, Gyan Jyoti College, Siliguri, West Bengal, India
A. K. Panda
Department of Chemistry, University of North Bengal, P.O. North Bengal University, D Darjeeling, West Bengal-734 430, India

Abstract


Capsular polysaccharide (SPS) is an integral component of gram negative bacteria, Klebsiella. The interaction of SPS isolated from Klebsiella K40 serotype with oppositely charged pure surfactants and cationic-nonionic mixed surfactants were investigated by dynamic light scattering and viscometric technique. Variation in the hydrodynamic radius and zeta potential were studied by dynamic light scattering method. Nature of the interaction is governed by concentration of the surfactants, charge density, surfactant head group and the CMC of the surfactants. Micellar effects of the pure and mixed surfactants on binding with the SPS are presented in this paper.

Keywords


Capsular Polysaccharide, Dynamic Light Scattering, Viscometry, CMC.