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Poly (hydroxyethyl methacrylate-co-hydroxyethyl acrylate) soft contact lenses for acetazolamide release

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Abstract

In this study, different ratios of poly (hydroxyethyl methacrylate-co-hydroxyethyl acrylate) hydrogels (HEMA-co-HEA), corresponding to (100/0, 70/30, 60/40, 50/50, 40/60, 30/70, and 0/100) were successfully prepared by free radical polymerization leading to tunable drug release materials for therapeutic soft contact lenses (SCLs) applications. The microstructures of the materials were investigated using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), and their thermal properties were examined with differential scanning calorimetry (DSC) and thermogravimetric (TGA) analyses. The results showed that the presence of HEA in the hydrogels matrix improved the materials’ microstructure and enhanced the swelling capacity in a 0.9% NaCl solution (pH = 5.5) at 37 °C. Furthermore, in vitro study of the loading and release of acetazolamide, as a model drug, showed a non-Fickian drug release behavior for all the studied hydrogels, whereas the highest drug release/loading capacity was observed for the hydrogel ratio HEMA/HEA of 40/60. Therefore, it can be concluded that the corresponding hydrogel is a promising curative SCLs material for a sustainable drug release application.

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Acknowledgements

This work was supported by a special grant from the DGRSDT, Direction Générale de la Recherche Scientifique et du développement Technologique (Algeria) which is gratefully acknowledged for the financial support.

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Authors and Affiliations

  1. Laboratoire de Synthèse Macromoléculaire et Thio-Organique Macromoléculaire (LSMTM), USTHB, BP 32, El Alia, 16111, Bab-Ezzouar, Alger, Algeria

    Amel Oucif, Nabila Haddadine, Dria Zakia, Naima Bouslah, Ahmed Benaboura & Khaled Beyaz

  2. Division Des Milieux ionisés et Laser, Centre de Développement Des Technologie Avancées, CDTA, Cité du 20 Août 1956, B.P:17, Baba Hassen, Algiers, Algeria

    Bendiba Guedouar

  3. Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284, USA

    Nabila Haddadine & M. Samy El-Shall

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  1. Amel Oucif
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  2. Nabila Haddadine
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  3. Dria Zakia
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  4. Naima Bouslah
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Correspondence to Nabila Haddadine or M. Samy El-Shall.

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Oucif, A., Haddadine, N., Zakia, D. et al. Poly (hydroxyethyl methacrylate-co-hydroxyethyl acrylate) soft contact lenses for acetazolamide release. Polym. Bull. 79, 1535–1554 (2022). https://doi.org/10.1007/s00289-021-03573-5

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