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Chitosan/CNTs nanocomposite as green carrier material for pesticides controlled release

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Abstract

Chitosan-based nanocomposites containing gamma-treated carbon nanotubes (CNTs) were developed for controlled release of pesticide. The CNTs were irradiated under gamma irradiation in air at different doses. The transmission electron microscopic images of gamma-treated CNTs showed disentanglement of the tubes without distorting their tubular structure which effectively increased the dispersion properties of CNTs in nanocomposites. X-ray diffraction analysis of CNTs showed some structural changes, and an irradiation dose of 150 kGy is the most effective. Azinphos methyl (AZM) was selected as a model drug, and its release was studied using HPLC technique. Controlled release response of CNTs-based nanocomposites opens a new avenue for pesticides applications because it requires less quantity of pesticides. As a result, the side effects of pesticide in our environment are minimized.

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Acknowledgments

One of the authors Saira Bibi highly acknowledge to the Higher Education Commission, Pakistan for providing financial funding under IRSIP to visit UK. The authors are also grateful for the laboratories facilities provided by NILOPE, Islamabad, Pakistan and Department of Chemistry, University of Bath, UK. We are also very grateful to Dr U. Potter for assistance with the electron microscopy.

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Correspondence to Mohsan Nawaz.

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Bibi, S., Nawaz, M., Yasin, T. et al. Chitosan/CNTs nanocomposite as green carrier material for pesticides controlled release. J Polym Res 23, 154 (2016). https://doi.org/10.1007/s10965-016-1055-9

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  • DOI: https://doi.org/10.1007/s10965-016-1055-9

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