改性血红蛋白诱导手性聚苯胺的合成

The synthesis of chiral polyaniline (PANI) induced by modified hemoglobin (Hb) was profoundly explored for the first time. Results revealed that after being separated, inactivated or immobilized, Hb can still induce the formation of chiral PANI successfully, suggesting that Hb can be used as the chiral inducers regardless of harsh reaction conditions. By examining the properties of PANI induced by modified Hb, it was found that Hb(inactivated)-PANI possessed excellent chirality, stability, and crystalline structure. The globin separated from Hb was demonstrated to have the ability of inducing the production of chiral PANI whereas the hematin from Hb had no capacity to direct enantio specificity for the PANI chains. Results indicated that Hb(immobilized)-PANI exhibited poor yield, doping state, and crystalline structure, indicating that the immobilization of Hb by entrapment was not bene cial to the polymerization reaction. Results also showed that the structure of Hb may have significant effects on the morphologies of chiral PANI.     

微小深度尺寸现场测量系统的研究

针对目前微小深度尺寸现场测量难的问题,设计开发了一种基于光切原理的现场视觉检测系统,应用自主开发的基于Directshow和VC++的图像采集和处理软件,能快速、准确地检测被测工件表面的微小深度尺寸.实验结果表明,该测量系统景深达700μm,可测量20～990μm的深度尺寸,系统整体的测量不确定度优于3％;在200～5...