Termin:
27.06.2011 18:30
Ort:
Festsaal der ÖAW
Dr. Ignaz Seipel-Platz 2
1010 Wien
Kontakt:
Dr. Marianne Baumgart
Öffentlichkeitsarbeit
Österreichische Akademie der Wissenschaften (ÖAW)
Dr. Ignaz Seipel-Platz 2
1010 Wien
T +43 1 51581-1219
marianne.baumgart@oeaw.ac.at
www.oeaw.ac.at/pr
Nanoscopy with Focused Light
Stefan W. Hell, Max Planck Institute for Biophysical Chemistry, Göttingen
For more than a century, it has been widely accepted that diffraction of light precludes any lens-based optical microscope from discerning details smaller than about half of the wavelength of light (~200 nm). However, in the 1990’s it was discovered that basic state transitions in a fluorophore can be exploited to eliminate the resolution-limiting role of diffraction. Since then, fluorescence microscopes have been developed that are now able to resolve on the nanometer scale. We discuss the basic principles of these nanoscopy (superresolution) concepts with particular emphasis on the first viable far-field ‘nanoscopy’ method, STED microscopy. We show their scope of applications in the life sciences and beyond.
Veranstalter: AIT Austrian Institute of Technology und Österreichische Akademie der Wissenschaften (ÖAW)
