Poly(acrylamidoglycolic acid) nanocomposite hydrogels reinforced with cellulose nanocrystals for pH-sensitive controlled release of diclofenac sodium
Polymer Testing, ISSN: 0142-9418, Vol: 64, Page: 175-182
2017
- 33Citations
- 46Captures
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Article Description
In this study, a non-cytotoxic and pH-sensitive poly(acrylamidoglycolic acid) based nanocomposite (PAGA-NC) hydrogels reinforced with cellulose nanocrystals (CNCs) was synthesized using redox free radical polymerization. The successful formation and crystalline behaviour of PAGA-NC hydrogels was verified by fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analyses. The results showed that morphological, rheological and mechanical properties of the PAGA-NC hydrogels were strongly influenced by the CNCs content. Moreover, swelling properties were investigated, and the results suggested that they behaved as pH sensitive manner. The in vitro MTT assay showed that the PAGA-NC hydrogels are cytocompatibile to NIH-3T3 fibroblast cells. In addition, diclofenac sodium (DCF) model drug was successfully encapsulated into these PAGA-NC hydrogels via equilibrium swelling method. The in vitro release of DCF from PAGA-NC hydrogels was retained at pH 1.2 and maximum release was observed at 7.4, revealing as potential candidates for controlled release carriers for oral drug delivery applications.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0142941817313223; http://dx.doi.org/10.1016/j.polymertesting.2017.10.006; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85031710811&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0142941817313223; https://api.elsevier.com/content/article/PII:S0142941817313223?httpAccept=text/xml; https://api.elsevier.com/content/article/PII:S0142941817313223?httpAccept=text/plain; https://dul.usage.elsevier.com/doi/; https://dx.doi.org/10.1016/j.polymertesting.2017.10.006
Elsevier BV
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