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Composite wound dressing for drug release

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Abstract

Present study is focused on the preparation of two layers composite wound dressing for drug release. The outer layer is made of hydrogel which contains of drug and the core layer is made of fabric. The two layers structure of composite dressing is formed by grafting of polyacrylamide-co-acrylic acid hydrogel on cotton fabric using ammonium per sulphate (APS) as chemical initiator and polyethylene glycol (PEG) as crosslinker. The major factors affecting graft copolymerization of hydrogel on cotton fabric are optimized by varying concentration of monomers & initiator, reaction temperature and addition time of crosslinker. Maximum grafting of hydrogel is obtained at 5 % (w/v) APS and 15 % acrylamide/acrylic acid (1:1 w/w ratio) concentration. The FTIR spectra of composite dressing shows characteristics peak of acrylic acid and acrylamide. The composite wound dressing material is loaded with model drug bovine serum albumin (BSA) and drug release behaviour is studied at different pH. The dressing shows drug release in different pH with maximum release of drug in acidic medium.

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Authors and Affiliations

  1. Department of Applied Chemistry and Polymer Technology, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India

    Roli Purwar, Poonam Rajput & Chandra Mohan Srivastava

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  1. Roli Purwar
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  2. Poonam Rajput
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  3. Chandra Mohan Srivastava
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Correspondence to Roli Purwar.

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Purwar, R., Rajput, P. & Srivastava, C.M. Composite wound dressing for drug release. Fibers Polym 15, 1422–1428 (2014). https://doi.org/10.1007/s12221-014-1422-2

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  • DOI: https://doi.org/10.1007/s12221-014-1422-2

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