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Updated: Sep 11, 2025
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
Published on: November 21, 2013
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Light-Triggered Disassembly of Peptide Nanostructures
Raphael Meyer1, Julian Link1, Lucas Gunkel2
1Department of the Synthesis of Macromolecule, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Chembiochem : a European Journal of Chemical Biology
|August 14, 2025
Summary
Researchers designed light-responsive peptides that self-assemble into nanostructures. Irradiation triggers a photochemical reaction, causing rapid, structure-dependent disassembly of these peptide assemblies.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Photochemistry
Background:
- The controlled disassembly of peptide nanostructures is less understood than their assembly.
- Peptide self-assembly offers versatile platforms for functional nanomaterials.
Purpose of the Study:
- To investigate light-triggered disassembly of peptide nanostructures.
- To explore the role of molecular photochemistry in supramolecular architecture disruption.
Main Methods:
- Design of amphiphilic peptides with anthracene (light-responsive) and lysine (pH-sensitive) units.
- pH-dependent self-assembly into nanosheets or nanoribbons.
- Photochemical [4+4] cycloaddition of anthracene upon 365 nm irradiation.
Main Results:
- Peptides self-assembled into pH-tunable nanosheets/nanoribbons.
- 365 nm light induced bimolecular photodimerization of anthracene units.
- Photoreaction disrupted π-π stacking, leading to nanostructure disassembly within 10 minutes.
- Disassembly kinetics were dependent on the preorganization of peptide assemblies.
Conclusions:
- Demonstrated light-triggered, structure-dependent disassembly of peptide nanostructures.
- Highlighted the interplay between supramolecular organization and photochemistry.
- Established a method for controlled degradation of peptide-based nanomaterials.
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