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Biodegradable polymethacrylic acid grafted psyllium for controlled drug delivery systems

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Abstract

Polymethacrylic acid (PMA) was synthesized on the backbone of psyllium (Psy) by a microwave assisted method to prepare polymeric grafted materials designated as (Psy-g-PMA). Various grades of Psy-g-PMA were prepared by changing the degree of grafting from 35%–58% and the materials were then made into tablets. Swelling and biodegradability studies of the tablets were carried out. Acetyl salicylic acid was incorporated in the various Psy-g-PMA samples and tablets were prepared to study the in vitro drug release in acidic (pH = 4), neutral (pH = 7), and basic (pH = 9) media. In the acidic medium, the swelling was more than 1300%. In addition, the biodegradable Psy-g-PMA had the highest drug release in the acidic medium. This may be attributed to Fickian diffusion since the drug and the medium in which it was released have the same acidic nature.

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Authors and Affiliations

  1. Birla Institute of Technology, Patna, 800014, India

    Ranvijay Kumar & Kaushlendra Sharma

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  1. Ranvijay Kumar
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  2. Kaushlendra Sharma
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Correspondence to Ranvijay Kumar.

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Kumar, R., Sharma, K. Biodegradable polymethacrylic acid grafted psyllium for controlled drug delivery systems. Front. Chem. Sci. Eng. 7, 116–122 (2013). https://doi.org/10.1007/s11705-013-1310-0

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  • DOI: https://doi.org/10.1007/s11705-013-1310-0

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