Offentliggjort onsdag 10. marts 2010

Dato

fredag 12. marts 2010

Tid

20.30 - 22.00

Sted

1523-318 Phys. Aud.

Speaker: Professor, Dr. Jochen Feldmann, Photonics and Optoelectronics Group, Ludwig-Maximilians-University
Munich, Germany
Title: Nano-Plasmonics and Biomolecules
Time: Friday 12 March 2010, at 10:15 -11:00. Coffee and bread will be served from 10:00
Location: Auditorium 3rd floor, Dept. of Physics

Abstract: I will report on our efforts to use the unique optical properties of gold
nanoparticles for the analysis and the control of biomolecular processes. We have
introduced optical biosensors relying on single gold nanoparticle light scattering, a fast
optothermal method for DNA-analysis [1] as well as protein linked gold nanoparticle
dimers for enhancing fluorescence and Raman-signals in nano-sized optical near-field
resonators [2]. In future, nanoplasmonic toolboxes are to be implemented in living cells
for in vivo optical analysis and control [3].

[1] Gold nanostoves for microsecond DNA melting analysis
J. Stehr, C. Hrelescu, R.A. Sperling, G. Raschke, M. Wunderlich, A. Nichtl, D. Heindl,
K. Kürzinger, W.J. Parak, T.A. Klar, and J. Feldmann
Nano Lett. 8, 619 (2008)

[2] Shaping emission spectra of fluorescent molecules with single plasmonic
nanoresonators
M. Ringler, A. Schwemer, M. Wunderlich, A. Nichtl, K. Kürzinger, T. Klar, and J.
Feldmann
Phys. Rev. Lett. 100, 203002 (2008)

[3] Controlled Nanometric Phase Transitions of Phospholipid Membranes by
Plasmonic Heating of Single Gold Nanoparticles, A.S. Urban, M. Fedoruk, M.R.
Horton, J.O. Raedler, F.D. Stefani, and J.Feldmann,
Nano Lett., 9, 2903 (2009)