题目：Polymer/Inorganic Composite Interfaces:
From Plasmonic Sensing to Responsive Cellular Interactions
主讲人：Prof. Helmuth Möhwald
Max-Planck-institute of Colloids and Interfaces, Potsdam
时间：2015年11月9日（周一）上午10：00
地点：bet体育365官网网站九龙湖校区纪忠楼YF-102
讲座摘要：
There have been many developments to fabricate ultrathin polymeric films, but less is known about the interaction of these films with an inorganic support. I will discuss 3 different systems, where the interaction is most important for the function of the film in response to processes on the support.
1. In cooperation with G. Zhang, Jilin University, a nanoplasmonic surface with a Ag film deposited is designed that is optically transparent and that can be excited by visible light.Field enhancement can lead to enhanced optical or Raman spectroscopic sensing, it can also be used to heat a thermoresponsive polymer film, that then changes wetting behavior. This can also be used to drive fluids uphill.
2. SiO2 nanoparticles can be decorated with an ultrathin polymer film containing plasmonic Ag nanoparticles in defined distance from each other. Aggregates of these particles then provide contact areas of increased electromagnetic fields, that serve as “hot spots” for enhanced intracellular Raman sensing.This is possible with sensitivity to detect certain diseases. (D.Radziuk, H.M., ACS Nano 9 (2015)2820-2835)
3. A TiO2 support excited by UV light, sonochemically treated also by visible light, ejects charge carriers, that can be converted into protons in an aqueous or polyelectrolyte environment. The resulting pH change can lead to a change in thickness and elasticity of the polymeric film. This can lead to changes in cell growth and via light this can be guided on a surface.(E.V.Skorb, D.V.Andreeva, H.M. et al. subm.)
主讲人简介：
Helmuth Möhwald教授在胶体化学与界面科学领域享有非常高的学术地位和影响力，曾担任欧洲胶体与界面学会主席、德国胶体学会主席以及多个国际著名期刊的主编和编委。Möhwald教授在众多研究领域有很深的造诣，包括仿生科学、界面与胶体科学、受限空间的化学与物理等，已在Science、JACS、Angewandte Chemie、Advanced Materials、Physical Review Letters等刊物发表学术论文910余篇，被引用37000多次，H-因子为96，是世界上他引频率最高的科学家之一。Möhwald教授也获得许多奖项，包括the Overbeek medal of the European Colloid and Interface Society, the Gay-Lussac Award from the French Ministry of Science and Technology, the Wolfgang-Ostwald award of the German Colloid Society，并于2012年当选为欧洲科学院院士。在他的努力推动下，1992年德国马普学会成立了胶体与界面研究所，他曾担任该所的所长。Möhwald教授已经被国内多家单位包括中国科学院北京化学研究所，复旦大学，浙江大学，吉林大学和苏州大学等多所知名大学聘请为客座教授。
Professor Helmuth Möhwald is a physicist and physicochemist and received his Ph.D. in physics from Max Planck Institute for Biophysical Chemistry in 1974. He is one of the founding directors of the world-famous Max Planck Institute of Colloids and Interfaces, and since 1993 he served as the director and scientific member at this institute. Prof. Möhwald is a well-known specialist in a wide range of research areas, such as liquid/gas interfaces, biomimetic systems, and chemistry and physics in confined space. He has published more than 910 peer-reviewed publications and his work has been quoted more than 37000 times and his H-index is 96.
He is also a highly successful university mentor, and more than 105 former colleagues now occupy professorial chairs in Germany and abroad, in the areas of physical chemistry, applied physics and biophysics, polymer chemistry, material sciences and chemical engineering. He is also honorary professor at the University Potsdam (1995) and the Chinese Academy of Science (2006), guest professor at University Pennsylvania (1983), Zhejiang University (2001), Fudan University (2004), Harbin Institute of Technology (2011) and Soochow University (2011). Dr. Möhwald has served as the Chair of European Colloid and Interface Society (2002-2003) and German Colloid Society (2003-2007).
He received numerous awards, such as the Physics award of the German Physical Society (1979), the Overbeek medal of the European Colloid and Interface Society (2007), the Gay-Lussac Award from the French Ministry of Science and Technology (2007), the Wolfgang-Ostwald award of the German Colloid Society (2009), and BP Visiting Lecturer of Cambridge University (2010). In 2012, he was elected Member of the Academy of Europe.
