Optical and mass spectra of higher-order DNA constructs for silver clusters

Author(s)

David LewisFollow

Department, Center, or Institute

Chemistry

Presentation Format

Poster

Presentation Type

On-campus research

Description

Silver clusters associate with DNA strands and form distinct chromophores. Silver nanoclusters consisting of ~10 atoms coordinate with DNA, and the DNA ligand tunes the cluster spectra. In this work, we discuss DNA templates with different sequences and structures. We use absorption and circular dichroism spectroscopies to measure the cluster spectra and mass spectrometry to measure the cluster stoichiometry. Our studies concentrate on the effect of DNA sequence on the cluster environment.

Session Number

5

Start Date and Time

4-9-2019 4:00 PM

Location

PAC Gym

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Apr 9th, 4:00 PM

Optical and mass spectra of higher-order DNA constructs for silver clusters

PAC Gym

Silver clusters associate with DNA strands and form distinct chromophores. Silver nanoclusters consisting of ~10 atoms coordinate with DNA, and the DNA ligand tunes the cluster spectra. In this work, we discuss DNA templates with different sequences and structures. We use absorption and circular dichroism spectroscopies to measure the cluster spectra and mass spectrometry to measure the cluster stoichiometry. Our studies concentrate on the effect of DNA sequence on the cluster environment.