超声波辅助对乳化交联工艺制备丝素蛋白微球形貌的影响  

Effect of ultrasonic assistance on morphology of silk fibroin microspheres prepared by emulsion cross-linking process

作　　者：王宗乾 王邓峰[1] 周杭 李俊 WANG Zongqian;WANG Dengfeng;ZHOU Hang;LI Jun(School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China;The Technical Center of Textile Dyeing and Finishing of Anhui Province, Anhui Polytechnic University, Wuhu, Anhui 241000, China)

机构地区：[1]安徽工程大学纺织服装学院,安徽芜湖241000 [2]安徽工程大学安徽省纺织印染行业技术中心,安徽芜湖241000

出　　处：《纺织学报》2019年第2期119-124,共6页Journal of Textile Research

基　　金：国家级大学生创新创业计划项目(201710363033);安徽省高校自然科学研究重点项目(KJ2016A796;1804a09020077);芜湖市科技计划重点项目(2017yf14);安徽工程大学大学生科研项目(2017DZ20)

摘　　要：为解决经乳化交联工艺制备的丝素蛋白空白微球极易发生集聚且粒径分布不匀的问题,在乳化交联过程中采用了超声波辅助工艺,探讨其对微球聚集、形貌的影响规律。借助激光粒度分析仪、扫描电子显微镜分析了微球的粒度分布和形貌特征。研究结果表明:无超声波辅助下,乳化交联工艺制备微球的平均粒径为15.08μm,粒径标准偏差(SD)为0.515,聚集现象明显;超声波辅助后,微球平均粒径随超声频率和超声功率的增加而减小,在45 kHz、100 W的超声波条件下制备的微球粒径减小至原来的26%,微球的SD值同时降低,证明超声波辅助可显著改善微球的团聚现象,促进微球粒径的均匀分布。In order to solve the easy aggregation and nonuniform particle size distribution of silk fibroin blank microspheres prepared by emulsion cross-linking process, ultrasonic assistance was employed in the emulsion cross-linking process. The particle size distribution and the morphology of microspheres were measured by laser particle size analyzer and scanning electron microscopy. The results show that in the absence of the ultrasonic assistance, the microspheres prepared by emulsion cross-linking process have the average particle size of 15.08 μm with the standard deviation ( SD) value of 0.515, and the aggregation is very obvious. However, in the presence of ultrasonic assistance, the average particle size decreases with the increase of ultrasonic frequency and ultrasonic power. The particle size of the microspheres prepared in the presence of the ultrasonic assistance at 45 kHz and 100 W reduces to 26% of the original one. The SD value of microspheres also decreases, indicating that ultrasonic assistance can significantly reduce the aggregation of the microspheres and promote the uniform distribution of the particle size of the microspheres.

关 键 词：乳化交联工艺 丝素蛋白 空白微球 超声波 粒径分布 

分 类 号：R318.08[医药卫生—生物医学工程] TS102[医药卫生—基础医学]