Gold nanorods as multifunctional probes in a liquid crystalline DNA matrix.
We show how a single gold nanorod can serve as a multifunctional probe in an organized DNA matrix. Polarization analysis of two-photon luminescence excited with a femtosecond laser enables imaging of the orientation of a single nanorod, which reports the orientation of DNA strands. Carefully controlled photoinduced heating by the same laser is able to degrade the DNA matrix in a highly localized volume.
Wroclaw University of Technology, Institute of Physical and Theoretical Chemistry, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland. joanna.olesiak@pwr.wroc.pl.
Joanna
J
Olesiak-Banska
Marta
M
Gordel
Katarzyna
K
Matczyszyn
Vasyl
V
Shynkar
Joseph
J
Zyss
Marek
M
Samoc
D004247:DNA / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D007834:Lasers; D050866:Liquid Crystals / Q000737:chemistry*; D008163:Luminescent Measurements; D043942:Nanotubes / Q000737:chemistry*; D017785:Photons; D013696:Temperature
D006046:Gold; D004247:DNA