Peptide Coassembly to Enhance Piezoelectricity for Energy Harvesting

Hui Yuan, Peipei Han, Zhen Tao, Bin Xue, Yiyang Guo, David Levy, Wen Hu, Yongmei Wang, Yi Cao, Ehud Gazit, Rusen Yang

Research output: Contribution to journalArticlepeer-review


The discovery of piezoelectricity in self-assembled peptide nanostructures opens an avenue to a new regime of piezoelectric materials and enables the fundamental investigation of electromechanical coupling in biomaterials. However, strategies for fabricating peptides with desired properties are still lacking. We find that a peptide-based coassembly process effectively controls the properties of peptide nanomaterials and demonstrates their application potential in nanogenerators. The composing peptides and their concentration influence the morphology, molecular property, and physical property of coassembled crystals. Compared with self-assembled diphenylalanine peptides, the coassembled peptides of diphenylalanine and phenylalanine-tryptophan show a 38% increase in piezoelectric coefficient, and the resulting harvesting device shows nearly a 3-fold increase in open-circuit voltage outputs.

Original languageEnglish
Pages (from-to)6538-6546
Number of pages9
JournalACS Applied Materials and Interfaces
Issue number5
StatePublished - 9 Feb 2022


  • array
  • coassembly
  • nanogenerator
  • peptides
  • piezoelectricity

All Science Journal Classification (ASJC) codes

  • Materials Science(all)


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