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JOURNALS || ASIO Journal of Drug Delivery (ASIO-JDD) [ISSN: 2455-2828]

Author Names : Dr. Gouranga Nandi
Page No. : 37-43  volume 1 issue 1
Article Overview


Gouranga Nandi, Sailee Chowdhury, Sudipta Chakroborty. An Overview of Natural Polysaccharides and their Chemical Modifications: Application in Drug Delivery, ASIO Journal of Drug Delivery (ASIO-JDD), 2015, 1(1): 37-43.


dids/doi No.: 12.2015-38368922

Dids Link :


In recent years, worldwide extensive efforts are being paid in exploration of pharmaceutical excipients from natural origin. Various natural polysaccharides have been substantially reported as potential drug delivery carriers. These natural polymers are preferred over synthetic polymers because of their biocompatibility, low cost, free availability and biodegradability. The native forms pose certain drawbacks like variable chemical composition, variable swelling kinetic, microbial load, microbial growth and change in viscosity upon aging. These negative aspects make them less acceptable compared to commercial synthetic products. Modification of their chemical structure makes them intelligent biomaterials in controlled release applications. This article is aimed at discussing chemical modifications of natural polysaccharides like carboxymethylation, grafting, blending, cross-linking and so on that are useful of making them suitable as potential drug carrier. The  pharmaceutical applications  of  various  natural  polysaccharides and  their  modified  forms  for  the  development  of  various drug  delivery  systems has also been described.

Key words: Natural polysaccharides, chemical modification, grafting, drug delivery.

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