期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 91, 期 -, 页码 496-501出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.msec.2018.05.053
关键词
Nanodiamond; Ring-opening polymerization; Water dispersibility; Biocompatibility
资金
- National Natural Science Foundation of China [51363016, 21474057, 21564006, 21561022, 21644014]
- Natural Science Foundation of Jiangxi Province in China [20161BAB203072, 20161BAB213066]
Nanodiamond (ND) is one of the most fascinating carbon materials that have been extensively investigated for biomedical applications owing to its small size, high specific surface areas, chemical inert and desirable biocompatibility. It has been reported that surface modification of ND with polymers could not only improve the dispersibility of final ND based composites but also endow them novel functions to fulfill the requirement for biomedical applications. Although some strategies have been developed previously, surface modification of ND with poly(amino acid)s has not been reported previously. In this work, poly(amino acid)s functionalized ND composites were fabricated through a ring-opening polymerization of a-amino acid N-carboxyanhydrides (NCAs), which was synthesized by conjugation of hydrophilic ethylene glycol with glutamic acid. The successful preparation of ND-GIuEG composites was confirmed by a series of characterization techniques. The results suggest that the water dispersibility of final ND-GIuEG composites is obviously improved. Moreover, ND-GIuEG composites show low toxicity and are of great potential for biomedical applications.
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