Start
Sep 21, 2010 - 16:00
End
Sep 21, 2010 - 17:30
Venue
Creativity Hall (Room No. 118)
Event Type
Speaker
Prof. Y. (Ishi) Talmon Department of Chemical Engineering and the Russell Berrie nanotechnology Institute Technion-Israel Institute of Technology Haifa 32000 Israel
Title
Cryo-EM: an Update
Abstract While cryogenic-temperature transmission electron microscopy (cryo-TEM) is now accepted as an almost standard tool in the study of complex liquids i.e. liquid systems with aggregates on the nanometric scale cryogenic-temperature scanning electron microscopy (cryo-SEM) is much less frequently practiced. The reason for that was mostly the lack of suitable instrumentation and methodologies. However recent developments in high-resolution scanning electron microscopes (HR-SEMs) and cryo-systems for those have made them ideal tools for the study of nanoparticles and colloids in viscous systems or systems containing large objects (hundreds of nanometers and larger) in which small (nanometric) features are to be imaged. At the Technion we have recently made substantial progress in the cryo-SEM methodology allowing us to image liquid and semi-liquid systems at their native state. In addition we have continuously advanced our cryo-TEM methodology. In my lecture I will describe those recent developments and give examples of their application in the study of various complex liquid systems.About Yeshayahu (Ishi) Talmon Born 29 June 1947 in Tel-Aviv Israel. B.Sc. (Summa Cum Laude 1969) and M.Sc. (1975) in Chemical Engineering Technion-Israel Institute of Technology. Ph.D. in Chemical Engineering (H.T. Davis S. Prager and L.E. Scriven advisers) University of Minnesota (1979). At the Department of Chemical Engineering Technion since March 1979; Professor since December 1991; Head Technion Project on Complex Fluids Microstructure and Macromolecules since January 1997; Department Chairman 2000-2005. Wolfson Professor of Chemical Engineering since January 2001: Director the Russell Berrie Nanotechnology Institute (RBNI) since January 2010. Over 220 refereed full papers. RESEARCH INTERESTS: Interfacial and colloidal phenomena. Nanoparticle systems. Electron microscopy and electron diffraction of nanostructured liquid systems and biological systems. Cryoelectron microscopy: theory and development. Applications of electron microscopy in chemical engineering biophysics food and drug technology and polymer science.