CHEM Talks: Professor Tom André Jos Vosch

Professor Tom André Jos Vosch, Department of Chemistry, UCPH will give a “CHEM Talk
 

https://ucph-ku.zoom.us/j/66181755113

Photophysical characterization and structure determination of DNA-stabilized silver nanoclusters

In the past twenty years, DNA has been used as a scaffold to stabilize atomically monodisperse silver nanoclusters. DNA-embedded silver nanoclusters (DNA-AgNCs) are characterized by discrete energy levels, allowing them to absorb and emit visible to near-infrared (NIR) light.

The combination of mass spectrometry and single crystal X-ray diffraction of HPLC-purified DNA-AgNCs is a powerful tool to gain insight into the atomic arrangement of silvers, the charge of the clusters, the coordinate bonds to the DNA and the overall DNA conformation.

In this talk, the structures of two different NIR emitters are presented, along with their steady-state and time-resolved photophysical characterization.