文献类型：期刊文献

中文题名：以明胶为模板制备复合空腔微球

英文题名：Preparation of Composite Hollow Microspheres on Gelatin Spheres as Templates

作者：丁素丽[1];朱以华[1];杨晓玲[1]

机构：[1]华东理工大学超细材料制备与应用教育部重点实验室,上海200237

年份：2004

卷号：19

期号：5

起止页码：991

中文期刊名：无机材料学报

外文期刊名：Journal of Inorganic Materials

收录：CSTPCD;;EI(收录号：2005209109010);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000224144100005)】；北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(20276019);国家863计划(2002AA302208);上海市纳米专项(0243nm069)

语种：中文

中文关键词：明胶微球;复合微球;空腔微球;层层自组装;缓释性

外文关键词：gelatin microspheres; composite microspheres; hollow microspheres; layer-by-layer self-assembly; slow-releasing effect

摘要：以明胶微球为模板,采用层层自组装技术制备了明胶/SiO2/PAH复合微球,并用热水溶解模板得到了SiO2/PAH复合空腔微球.通过用ζ电位、TEM、IR、TG等测试手段对其样品进行表征分析.结果表明,SiO2/PAH有效地组装在明胶微球上,形成了核壳式结构,模板去除后得到空腔结构.在溶解模板的过程中,通过对明胶水解产物氨基酸含量的测定,发现SiO2/聚电解质的存在具有一定的缓释性.
The gelatin/SiO2/PAH composite microspheres using gelatin spheres as templates were fabricated by layer-by-layer self-assembly. Templates were removed by dissolving in hot water and the hollow SiO2/PAH microspheres were produced. Samples were characterized by zeta - potential, TEM, IR, TG, etc. measurements. The results showed that SiO2/PAH was assembled effectively on gelatin spheres and formed core-shell structure, and hollow structure was obtained by removing gelatin. In the process of dissolving templates, slow-releasing effect of hollow microspheres was found by the determination of amino acids from the hydrolyzed gelatin.