纳米技术在药物制剂中的应用研究综述

简要综述了纳米技术与纳米药物的发展.阐述了纳米药物的基本概念,药物载体材料的选择与纳米药物的制备方法.说明了纳米药物对药物制剂学有着深远的影响.     

纳米技术在竞技体育领域的应用展望

纳米技术是21世纪的主导技术。随着人们对纳米技术研究的深入，有关它的产品的许多优良性能不断被发掘，特别是在竞技体育“人性化”、“个性化”、“科学化”的发展上。从各类运动员的选拔、训练器材和场地的技术革新、运动损伤与肌体损伤的修复、运动机能的改善等方面研究纳米技术对竞技体育发展的促进作用。     

新型多功能纳米材料研究的进展

综合阐述多功能纳米材料的制备，性能表征和应用的研究进展。     

Preparation of poly (methyl methacrylate)/nanometer calcium carbonate composite by in-situ emulsion polymerization

Methyl methacrylate (MMA) emulsion polymerization in the presence of nanometer calcium carbonate (nano-CaCO3) surface modified with (-methacryloxypropyltrimethoxysilane (MPTMS) was carried out to prepare poly (methyl methacrylate) (PMMA)/nano-CaCO3 composite. The reaction between nano-CaCO3 and MPTMS, and the grafting of PMMA onto nano-CaCO3 were confirmed by infrared spectrum. The grafting ratio and grafting efficiency of PMMA on nano-CaCO3 modified with MPTMS were much higher than that on nano-CaCO3 modified with stearic acid. The grafting ratio of PMMA increased as the weight ratio between MMA and nano-CaCO3 increased, while the grafting efficiency of PMMA decreased. Transmission electron micrograph showed that nano-CaCO3 covered with PMMA was formed by in-situ emulsion polymerization.     

酒石酸根阴离子柱撑ZnAl-CO3-LDHs 水滑石的合成

采用共沉淀法制备纳米Zn-Al水滑石(LDHs),并以纳米Zn-Al水滑石为前体,采用离子交换法进行插层组装合成酒石酸根阴离子柱撑水滑石。并采用红外光谱、X射线衍射对样品进行了表征。结果表明:酒石酸根阴离子可以插入纳米Zn-Al水滑石层间,完全取代CO23-离子,形成具有超分子结构的稳定酸根阴离子柱撑水滑石。     

纳米微粉的化学制备与表征

综述了近年来纳米微粉在化学制备领域中的一些研究进展，并对纳米微粉的表征进行了介绍。