Accelerated charge transfer in water-layered peptide assemblies

Kai Tao, Joseph O. Donnell, Hui Yuan, Ehtsham U. Haq, Sarah Guerin, Linda J.W. Shimon, Bin Xue, Christophe Silien, Yi Cao, Damien Thompson, Rusen Yang, Syed A.M. Tofail, Ehud Gazit

Research output: Contribution to journalArticlepeer-review

Abstract

Bioinspired assemblies bear massive potential for energy generation and storage. Yet, biological molecules have severe limitations for charge transfer. Here, we report l-tryptophan-d-tryptophan assembling architectures comprising alternating water and peptide layers. The extensive connection of water molecules results in significant dipole-dipole interactions and piezoelectric response that can be further engineered by doping via iodine adsorption or isotope replacement with no change in the chemical composition. This simple system and the new doping strategies supply alternative solutions for enhancing charge transfer in bioinspired supramolecular architectures.

Original languageEnglish
Pages (from-to)96-101
Number of pages6
JournalEnergy and Environmental Science
Volume13
Issue number1
DOIs
StatePublished - Jan 2020

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