Grafting chitosan and polyHEMA on carbon nanotubes surfaces: "Grafting to" and "Grafting from" methods. Mahmoodian, H., Moradi, O., & Shariatzadeh, B. International Journal of Biological Macromolecules, 63:92–97, February, 2014. WOS:000330603800013doi abstract bibtex We report a simple method for engineering chitosan (CS) functionalized multi-walled carbon nanotube (MWCNT) composites with a biomedically important polymer, poly-2-hydroxyethyl methacrylate (polyHEMA), by chemical grafting HEMA monomers via free radical polymerization. Functionalization of CS and polyHEMA occurred in three steps. First, using microwave irradiation, CS was grafted onto the surface and sidewall of the carbon nanotubes. Second, HEMA monomers were grafted onto the polymeric matrix surface. The final step involved free radical polymerization of HEMA monomers. Composite synthesis was confirmed by Fourier transform infrared (FTIR) spectroscopy. Moreover, the presence of polyHEMA on the surface of the CS functionalized carbon nanotubes was confirmed by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA) analyses. Furthermore, in the aqueous phase, our novel composites exhibited higher dispersibility compared with pristine MWCNTs. Considering the biomedical importance of polyHEMA and CS polymers, we expect these materials to be useful in the pharmaceutical industry as novel biomaterial composites with potential applications in drug delivery. (C) 2013 Elsevier B.V. All rights reserved.
@article{mahmoodian_grafting_2014,
title = {Grafting chitosan and {polyHEMA} on carbon nanotubes surfaces: "{Grafting} to" and "{Grafting} from" methods},
volume = {63},
issn = {0141-8130},
shorttitle = {Grafting chitosan and {polyHEMA} on carbon nanotubes surfaces},
doi = {10.1016/j.ijbiomac.2013.10.030},
abstract = {We report a simple method for engineering chitosan (CS) functionalized multi-walled carbon nanotube (MWCNT) composites with a biomedically important polymer, poly-2-hydroxyethyl methacrylate (polyHEMA), by chemical grafting HEMA monomers via free radical polymerization. Functionalization of CS and polyHEMA occurred in three steps. First, using microwave irradiation, CS was grafted onto the surface and sidewall of the carbon nanotubes. Second, HEMA monomers were grafted onto the polymeric matrix surface. The final step involved free radical polymerization of HEMA monomers. Composite synthesis was confirmed by Fourier transform infrared (FTIR) spectroscopy. Moreover, the presence of polyHEMA on the surface of the CS functionalized carbon nanotubes was confirmed by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA) analyses. Furthermore, in the aqueous phase, our novel composites exhibited higher dispersibility compared with pristine MWCNTs. Considering the biomedical importance of polyHEMA and CS polymers, we expect these materials to be useful in the pharmaceutical industry as novel biomaterial composites with potential applications in drug delivery. (C) 2013 Elsevier B.V. All rights reserved.},
language = {English},
journal = {International Journal of Biological Macromolecules},
author = {Mahmoodian, Hossein and Moradi, Omid and Shariatzadeh, Behnam},
month = feb,
year = {2014},
note = {WOS:000330603800013},
keywords = {Biosensors, Microwave, Nanomaterials, PolyHEMA, biomaterial, biomedical applications, carbon nanotubes, chitin, cholesterol, functionalization, nanocomposites, polymerization, polymers},
pages = {92--97},
}
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Second, HEMA monomers were grafted onto the polymeric matrix surface. The final step involved free radical polymerization of HEMA monomers. Composite synthesis was confirmed by Fourier transform infrared (FTIR) spectroscopy. Moreover, the presence of polyHEMA on the surface of the CS functionalized carbon nanotubes was confirmed by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA) analyses. Furthermore, in the aqueous phase, our novel composites exhibited higher dispersibility compared with pristine MWCNTs. Considering the biomedical importance of polyHEMA and CS polymers, we expect these materials to be useful in the pharmaceutical industry as novel biomaterial composites with potential applications in drug delivery. (C) 2013 Elsevier B.V. All rights reserved.","language":"English","journal":"International Journal of Biological Macromolecules","author":[{"propositions":[],"lastnames":["Mahmoodian"],"firstnames":["Hossein"],"suffixes":[]},{"propositions":[],"lastnames":["Moradi"],"firstnames":["Omid"],"suffixes":[]},{"propositions":[],"lastnames":["Shariatzadeh"],"firstnames":["Behnam"],"suffixes":[]}],"month":"February","year":"2014","note":"WOS:000330603800013","keywords":"Biosensors, Microwave, Nanomaterials, PolyHEMA, biomaterial, biomedical applications, carbon nanotubes, chitin, cholesterol, functionalization, nanocomposites, polymerization, polymers","pages":"92–97","bibtex":"@article{mahmoodian_grafting_2014,\n\ttitle = {Grafting chitosan and {polyHEMA} on carbon nanotubes surfaces: \"{Grafting} to\" and \"{Grafting} from\" methods},\n\tvolume = {63},\n\tissn = {0141-8130},\n\tshorttitle = {Grafting chitosan and {polyHEMA} on carbon nanotubes surfaces},\n\tdoi = {10.1016/j.ijbiomac.2013.10.030},\n\tabstract = {We report a simple method for engineering chitosan (CS) functionalized multi-walled carbon nanotube (MWCNT) composites with a biomedically important polymer, poly-2-hydroxyethyl methacrylate (polyHEMA), by chemical grafting HEMA monomers via free radical polymerization. Functionalization of CS and polyHEMA occurred in three steps. First, using microwave irradiation, CS was grafted onto the surface and sidewall of the carbon nanotubes. Second, HEMA monomers were grafted onto the polymeric matrix surface. The final step involved free radical polymerization of HEMA monomers. Composite synthesis was confirmed by Fourier transform infrared (FTIR) spectroscopy. Moreover, the presence of polyHEMA on the surface of the CS functionalized carbon nanotubes was confirmed by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA) analyses. Furthermore, in the aqueous phase, our novel composites exhibited higher dispersibility compared with pristine MWCNTs. Considering the biomedical importance of polyHEMA and CS polymers, we expect these materials to be useful in the pharmaceutical industry as novel biomaterial composites with potential applications in drug delivery. (C) 2013 Elsevier B.V. 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