新型液晶对其与聚硅氧烷复合膜抗凝血性能的影响.pdfVIP

第26卷 第1期 材 料 科 学 与 工 程 学 报 总第111期 Vo1．2 6 No．1 Journal of Materials ScienceEngineering Feb．2008 Article ID：1673-2812(2008)01—0032—03 Effect of Liquid Crystal Compounds on the Blood Compatibility of Novel Liquid Crystal／P0lysil0xane MOU Shan—song，TANG Shun—qing，TU Mei (Institute of Biomedical Engineering，Jinan University，Guangzhou 510632，China) [Abstract] Three kinds of cholesteryl liquid crystal compounds were synthesized and characterized by Infrared Spectroscopy(IR)and Differential Scanning Calorimetry(DSC)．They were blended with polysiloxane(as fl substrate)and then come into being membranes．The anticoagulative properties of different liquid crystal composite membranes were identified by the blood—compatibility tests．Theresults show that the blood compatibilities of composite membranes whose hydrophilic properties are the best are more excellent than that of other ones． [Key words] liquid crystal；blood compatibility；polysiloxane CLC humber：0647．33 Document Code：A 新型液晶对其与聚硅氧烷复合膜抗凝血性能的影响 牟善松，汤顺清，屠 美 (暨南大学生物医学工程研究所。广东广州 510632) 【摘 要】 本研究合成出三种胆甾型液晶化合物，并用IR和 DSC进行了表征。将三种液晶化合物与聚硅氧 烷制成复合膜，测定其抗凝血性能，结果表明，亲水性愈高的复合膜血液相容性愈好。 【关键词】 液晶；血液相容性；聚硅氧烷 in the body，especially the surface of cell membranes 1 Introduction contacting with blood frequently，are all mobile liquid crysta1． Cholesteryl liquid crystal spreads over human In recent years， polymers used for medicine have organs，its spiral structure is he