Abstract
Polymer matrix type chitosan/multiwalled carbon nanotube nanocomposite and 5-fluorouracil encapsulated chitosan/multiwalled carbon nanotube nanocomposite have been successfully synthesized by the chemical method. The prepared nanocomposites were characterized using XRD, FTIR, UV, HRTEM, SAED and the release profile of 5-FU from the nanocomposite system has been evaluated. The XRD pattern of the chitosan/multiwalled carbon nanotube nanocomposite shows the presence of planes corresponding to both chitosan and MWCNT and that of drug-encapsulated nanocomposite shows the presence of peaks of 5-fluorouracil in addition to the other two moieties. Binding of carbon nanotube to the NH2 and OH groups of chitosan has been elucidated using FTIR. The encapsulation of 5-fluorouracil to the nanocomposite has been verified using elemental mapping and SAED studies apart from XRD. The encapsulation efficiency of 5-FU into the nanocomposite has been calculated and is 97 %. The cytotoxicity of the nanocomposite towards the breast cancer cell line (MCF-7) has been studied.
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Acknowledgments
Author (E.A.K.N) acknowledges UGC non-NET for its financial support in the form of fellowship. The National Center for Nanoscience and Nanotechnology, University of Madras, is acknowledged for the HRTEM facility.
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Nivethaa, E.A.K., Dhanavel, S., Narayanan, V. et al. Fabrication of chitosan/MWCNT nanocomposite as a carrier for 5-fluorouracil and a study of the cytotoxicity of 5-fluorouracil encapsulated nanocomposite towards MCF-7. Polym. Bull. 73, 3221–3236 (2016). https://doi.org/10.1007/s00289-016-1651-1
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DOI: https://doi.org/10.1007/s00289-016-1651-1