seminars

Modification of Protein-Based Materials with Photoacids for Light-Controlled Proton Conductivity

Physical and Analytical Chemistry Seminar

Lecturer: Alex Burnstine-Townley

Date:
03-03 Nov 2019 @ 12:30

Location: Faculty Seminar Room

Abstract:

Understanding long-range proton conduction is of utmost importance for the elucidation of biological processes. By using novel protein based materials as model substrates, the conductivity mechanisms of biological systems can be studied. Excited state proton transfer (ESPT) has served as an excellent tool in these pursuits. To explore the dynamic processes at hand, the materials were augmented with a photoacid to enable on-demand proton release. The conductivity of the materials can be reversibly modulated by optical excitation. The magnitude of the effect can be adjusted by doping level and applied intensity of light. These materials, imbued with remarkable new properties, also show promise for biologically based conductivity switches.