Drug release behaviour and mechanism from unmodified and in situ modified bacterial cellulose

Adepu, Shivakalyani and Khandelwal, Mudrika (2021) Drug release behaviour and mechanism from unmodified and in situ modified bacterial cellulose. Proceedings of the Indian National Science Academy, 87 (1). pp. 110-120. ISSN 0370-0046

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Bacterial cellulose (BC) is a suitable drug delivery carrier owing to the nanofibrous micro and mesoporous structure. One of the unique aspects is the tunability of BC microstructure by the addition of certain additives in the growth medium during the synthesis of cellulose by bacteria. In the present work, BC was in situ modified by adding Polyethylene glycol 2000 (PEG 2000). Effect of in situ modification on crystallinity, chemical composition, microstructure and morphology and, porosity was studied by XRD, FTIR, SEM and BET, followed by the effect on drug (Diclofenac sodium) loading and release kinetics. As a non-incorporating in situ modifier, PEG2000 increased the overall porosity, pore volume and decreased the specific surface area with no significant effect on crystallinity. In vitro, drug release studies revealed that a huge burst release for PEG modified BC as compared to pristine BC. The mechanism of release is further investigated by mathematical modelling. This work opens up avenues of exploring the wide possibility of tuning immediate and sustained drug release from bacterial cellulose for various release applications.

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IITH Creators:
IITH CreatorsORCiD
Adepu, ShivakalyaniUNSPECIFIED
Khandelwal, Mudrikahttps://orcid.org/0000-0001-9717-5381
Item Type: Article
Uncontrolled Keywords: Bacterial cellulose; Chemical compositions; Drug delivery carrier; Drug release study; Drug-release behaviour; Mesoporous structures; Situ modification; Sustained drug release
Subjects: Literature
Social sciences
Divisions: Department of Design
Depositing User: . LibTrainee 2021
Date Deposited: 10 Jul 2021 05:00
Last Modified: 10 Jul 2021 05:00
URI: http://raiith.iith.ac.in/id/eprint/8203
Publisher URL: http://doi.org/10.1007/s43538-021-00012-x
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