MSE Seminar Series: J.D. Tovar
Friday, October 21, 2016
Room 2108, Chemical and Nuclear Engineering Building
Department of Chemistry
Johns Hopkins University
Energy migration and transient electric field generation within peptide-based supramolecular polymers
This lecture will describe recent work to incorporate pi-conjugated molecules of interest for organic electronics into self-assembling oligopeptides of interest for biomaterial applications. The assembly process leads to the formation of supramolecular polymers fashioned into 1-D nanomaterials ca. 10 nm in diameter. Using this general platform, a series of energy transport examples will be discussed, spanning transistor-based gating for carrier mobility, photonic activation for exciton transport, and the photonic creation of static electric fields. Prospects for using these hybrid electronic biomaterials to elicit biological adhesion or other specific responses in an externally tunable manner will be addressed.
Sanders, Magnanelli, Bragg, Tovar. “Photoinduced electron transfer within supramolecular donor-acceptor peptide nanostructures under aqueous conditions,” J Am Chem Soc 2016 (138) 3362-3370.
Besar, Ardoña, Tovar, Katz. ACS Nano 2015 (9) 12401-12409.
Ardoña, Tovar. “Energy transfer within responsive pi-conjugated peptide-based coassembled nanostructures in aqueous environments,” Chem Sci, 2015 (6) 1474-1484.