采用静电自组装实现了壳聚糖(CS)对碳微球(CMSs)的包覆.将化学气相沉积法制得的CMSs用HNO3和H2O2混合溶液进行表面氧化修饰,引入含氧官能团,使其表面带负电,通过静电作用力与带正电的CS自组装,从而改变了CMSs的表面活性.利用场发射扫描电子显微镜、傅立叶红外光谱仪、X-射线衍射仪及热重分析仪等检测手段表征了产物的形貌和结构特征.结果表明:CS成功地组装到CMSs表面,当CMSs与CS的质量比为1:2时,CS均匀覆盖于CMSs表面,而且在水溶液和乙醇中的分散性较好.
参考文献
[1] | Yuanzhu Mi;Yingliang Liu;Dingsheng Yuan;Jingxian Zhang .Preparation of Carbon Micro-beads via an Ethanol-thermal Route[J].Chemistry Letters,2005(6):846-847. |
[2] | Liqiang Xu;Wanqun Zhang;Qing Yang .A novel route to hollow and solid carbon spheres[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(5):1090-1092. |
[3] | Liu X G;Liu H Y;Yang Y Z.Modification of Carbon Microspheres in Different Acids[A].Japan,2008:65. |
[4] | 许并社,罗秋苹,杨永珍,郭明聪,金琳,刘旭光.银/碳微球复合材料的制备和表征[J].中国材料进展,2009(02):35-38. |
[5] | Carlos Peniche;Waldo Arguelles-Monal;Hazel Peniche;Niuris Acosta .Chitosan: An Attractive Biocompatible Polymer for Microencapsulation[J].Macromolecular bioscience,2003(10):511-520. |
[6] | Ruel Gariepy-E;Chenite A;Chaput C;Guirguis S;Leroux J .Characterization of thermosensitive chitosan gels for the sustained delivery of drugs.[J].International Journal of Pharmaceutics,2000(1/2):89-98. |
[7] | Wang J .Carbon-nanotube based electrochemical biosensors: A review[J].Electroanalysis,2005(1):7-14. |
[8] | Li J;Liu Q;Liu Y J et al.DNA Biosensor Based on Chitosan Film Doped with Carbon Nanotubes[J].Analytical Biochemistry,2005,346(01):107-114. |
[9] | 倪有娣,章志量,茹金泉,蔡玲斐,胡巧玲.凝胶化改性壳聚糖抑菌及抗腹腔感染作用研究[J].浙江预防医学,2005(07):6-7,12. |
[10] | Brust M.;Kiely CJ. .Some recent advances in nanostructure preparation from gold and silver particles: a short topical review[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2002(2/3):175-186. |
[11] | 蒋明,娄金生,谢水波,刘迎九,蔡萍莉,张宇.壳聚糖絮凝剂处理水源水中有机物的试验研究[J].水处理技术,2005(05):15-18. |
[12] | Portney NG;Ozkan M .Nano-oncology: drug delivery, imaging, and sensing[J].Analytical and bioanalytical chemistry,2006(3):620-630. |
[13] | Yang MH;Yang Y;Yang HF;Shen GL;Yu RQ .Layer-by-layer self-assembled multilayer films of carbon nanotubes and platinum nanoparticles with polyelectrolyte for the fabrication of biosensors[J].Biomaterials,2006(2):246-255. |
[14] | Yuyang Liu;Jing Tang;Xianqiong Chen .Decoration of carbon nanotubes with chitosan[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(15):3178-3180. |
[15] | Shieh YT;Yang YF .Significant improvements in mechanical property and water stability of chitosan by carbon nanotubes[J].European Polymer Journal,2006(12):3162-3170. |
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