Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 32: Biophotonics

Q 32.6: Talk

Wednesday, March 2, 2016, 12:15–12:30, f342

Optimizing thiol DNA-gold reaction using whispering gallery microcavities — •Eugene Kim, Martin D. Baaske, and Frank Vollmer — Max-Planck-Institute for the science of light

In this work, the transient kinetics of thiol DNA-gold interactions in aqueous environment are studied at the single-molecule level utilizing high Q plasmonic-photonic whispering gallery mode microcavities. Three different regimes of thiol-gold interactions were found depending on the environmental conditions. Statistical analysis of the detection frequency, dwell-/binding-time, and size distribution of transient interactions with respect to their dependence on pH and electrolyte concentration allow us for the optimization of thiol-gold bonding.