Council of Scientific and Industrial Research

Actorious Innovations and Research Pvt. Ltd.

Jayant Jagannath Khandare

Mohan Gopalkrishna Kulkarni

Abhijit Gothoskar

Nilesh Kulkarni

Gourishankar Aland

Shashwat Banerjee

Rituja Gupta

Muralidhara Padigaru

Ganesh Khutale

The present invention is related to polymer based formulation for release of drugs and bioactives at gastrointestinal tract specific sites including stomach, intestine and colon.

Polymer based formulation for release of drugs and bioactives at specific GIT sites

The present invention relates to block copolymers for applications in medicine and biotechnology and synthesis thereof. Block copolymers comprise polyvalent N-Acetyl Glucosamine (NAG) which bind more efficiently to lysozyme than NAG itself. The effective inhibition is possible even at very low ligand concentrations than reported earlier. The block copolymers could be used for prevention and treatment of bacterial and viral infections. Moreover these polymers can be stimuli sensitive and be used for the recovery of biomolecules. The methodology of preparation of block copolymers reported here can be extended to other polymers and ligands such as sialic acid and used for preventing influenza and/or rotavirus infections. It also provides a method for preparation of block copolymers wherein polymers comprising sequences of specific ligands are essential.

Block copolymers and preparation thereof

The present invention relates to a polyvalent imprinted polymer useful in medicine and biotechnology and to a process for the preparation thereof. More particularly it relates to the said polymer of formula (1) herein below wherein R is H, CH, CH, CH, Ris H, CH, CH, CH; Ris H, CH, CH, CH, X is based on 4-Amino Butyric Acid (4-ABa), 6-Amino Caproic Acid (6-ACA), 8-Amino Octanoic Acid (8-AOA), 10-Amino Decanoic Acid (10-ADA), 11-Amino Undecanoic Acid (11-ADA), n is from 3 to 50, L is OH, NH, OCH, NH&#x2014;CH&#x2014;(CH), Cl, OCH, CH&#x2550;CH, O&#x2014;CH&#x2550;CH; and Y is N-Acetyl Glucosamine (NAG), mannose, galactose, sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose tagaose, glucopyranose, fructofuranose, deoxyribose, galactosamine, sucrose, lactose, isomaltose, maltose, cellobiose, cellulose and amylose; Z is based on chain terminating agent such as Mercapto Ethanol, Mercapto, Mercapto Propanol, Mercaptoethylamine HCl.

Polyvalent imprinted polymer and process of preparation thereof

Functional polyvalent oligomer for applications in medicine and biotechnology are disclosed. These oligomers have the formula (1)wherein R is H, CH, CH, R1, is H, NH2, OH, COOH, X is N-Acetyl Glucosamine, mannose, galactose and sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose, tagatose, glucopyranose, fructofuranose, deoxyribose, galactosamine, sucrose, lactose, isomaltose, maltose, cellobiose, cellulose and amylose, Y is H, COOH, OH or NH2, and n is from 3 to 50. The present invention also relates to synthesis of such oligomeric ligands. The method of synthesis of the present invention for oligomerization can be&#x2014;applied to other ligands such as sialic acid, mannose and galactose and can -be used for the prevention of infections.

Oligomers containing N-acetyl glucosamine (NAG)

The present invention relates to copolymers for applications in medicine and biotechnology and preparation thereof. Copolymers comprises polyvalent N-Acetyl Glucosamine(NAG) in polyvalent form and bind more efficiently to lysozyme than NAG itself. The copolymers exhibit effective inhibition even at very low ligand concentrations. The copolymers could be used for prevention and treatment of bacterial and viral infections. Moreover, these copolymers form are stimuli sensitive polymers and can be used for the recovery of biomolecules. The methodology can be extended to other ligands such as sialic acid and used for preventing influenza and/or rotavirus infections. It also provides a method for the synthesis of copolymers wherein polymers comprising sequences of specific ligands are required.

Copolymers and preparation thereof

The present invention relates to a polymerizable macromers for applications in medicine and biotechnology and synthesis thereof. Macromers comprises polyvalent various carbohydrates including N-Acetyl Glucosamine(NAG) which bind more efficiently to lysozyme than NAG itself. Effective inhibition of lysozyme is possible even at very low ligand concentrations. The polymerizable macromer could be used for prevention and treatment of bacterial and viral infections. Moreover these macromers can be copolymerized with other comonomers to form stimuli sensitive polymers and used for the recovery of biomolecules. The methodology can be extended to other ligands such as sialic acid and used for preventing influenza and/or rotavirus infections.

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Maharashtra, India

Jayant Jagannath Khandare