Presenter:Prof. Helmuth Möhwald
Max-Planck-Institute of Colloids and Interfaces, Germany
Topic: Light stimulated interactions in organic/inorganic nanocomposites
Time: 10:00 AM, Oct. 31st (Monday)
Location: Conference Room B, BLDG 909-1F
Abstract
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. Many different geometries like frustrums, nanobeakers,asymmetric volcanoes are realized and optimized for maximum sensitivity of detection, and results of simulations and experiments are in good agreement.In special the coupling of different plasmons is most promising, leading to different environmental sensitivity.
2. 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. Estimates of required sensitivities show, that this light/pH conversion can be achieved with many different solids and should also much depend on the type of polymer, that could serve as pH buffer.(E.V.Skorb, D.V.Andreeva, H.M. et al. Angew.Chemie, Biomacromol., in press.)
Biography
Positions |
|
1974-1975 | Postdoc, (IBM San Jose) |
1978 | Habilitation in Physics (University of Ulm) |
1978-1981 | Scientific Co-Worker (Dornier-System, Friedrichshafen) |
1981-1987 | Associate Professor (C3) in Experimental Physics, Biophysics. (TU München) |
1987-1993 | Chair (C4) in Physical Chemistry (University of Mainz) |
1993-2014 | Director and Scientific Member, (MPI of Colloids and Interfaces, Golm/ Potsdam) |
since 1995 | Honorary Professor, (University of Potsdam) |
since 2014 | Emeritus director and consultant at the MPI of Colloids and Interfaces |
since 2014 | Consultant with the CEA at ICSM Marcoule, France |
Awards and Scholarships | |
1979 | Physics Award of the German Physical Society |
1998 | Raphael-Eduard-Liesegang Award of the German Colloid Society |
2000 | Vannegard Lecture, Gothenburg |
2002 | Lectureship Award of the Japanese Colloid Society |
2002 | Founder’s Lecture, London |
2002 | Eli Burstein Lecture, Philadelphia |
2004 | Corresponding member of the Austrian Academy of Sciences |
2007 | Gay-Lussac-Humboldt Award, French Ministry of Sci. Technol. |
2007 | Highly cited chemist according to ISI |
2007 | Overbeek Medal of the European Colloid and Interface Society |
2008 | Honorary Doctorate of the University Montpellier, France |
2009 | Ostwald-Medal of the German Kolloid-Gesellschaft |
2010 | BP visiting lecturer, Univ. Cambridge |
2012 | Member of the Academy of Europe |
2014 | Langmuir Lecturer (ACS) |
2014 | Elyuhar - Goldschmidt award of the Royal Spanish Chemical Society |
Publications
According to WoS (Core) (September 2016): >1000 publications, h=106, > 49.000 citations
Contact: Prof. Lifeng Chi
（责任编辑：张伶 邮箱：zhangling10@suda.edu.cn）