Uptake and release of species from carbohydrate containing organogels and hydrogels

Pan, A. and Roy, S.G. and Haldar, U. and Mahapatra, R.D. and Harper, G.R. and Low, W.L. and De, P. and Hardy, J.G. (2019) Uptake and release of species from carbohydrate containing organogels and hydrogels. Gels, 5 (4). ISSN 2310-2861

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Abstract

Hydrogels are used for a variety of technical and medical applications capitalizing on their three-dimensional (3D) cross-linked polymeric structures and ability to act as a reservoir for encapsulated species (potentially encapsulating or releasing them in response to environmental stimuli). In this study, carbohydrate-based organogels were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of a β-D-glucose pentaacetate containing methacrylate monomer (Ac-glu-HEMA) in the presence of a di-vinyl cross-linker; these organogels could be converted to hydrogels by treatment with sodium methoxide (NaOMe). These materials were studied using solid state 13C cross-polarization/magic-angle spinning (CP/MAS) NMR, Fourier transform infrared (FTIR) spectroscopy, and field emission scanning electron microscopy (FE-SEM). The swelling of the gels in both organic solvents and water were studied, as was their ability to absorb model bioactive molecules (the cationic dyes methylene blue (MB) and rhodamine B (RhB)) and absorb/release silver nitrate, demonstrating such gels have potential for environmental and biomedical applications.

Item Type:
Journal Article
Journal or Publication Title:
Gels
Subjects:
ID Code:
138794
Deposited By:
Deposited On:
08 Nov 2019 15:15
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Mar 2020 06:51