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Updated: May 31, 2026
10:01
Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro
Published on: April 8, 2020
Self-Assembly of Enantiomeric Helical Dipeptides into Vesicles: Applications
Sayanta Roy1, Rajat Subhra Giri1, Gobinda Dolai1
1Department of Chemistry, Laboratory of Peptide and Amyloid Research, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
Langmuir : the ACS Journal of Surfaces and Colloids
|May 29, 2026
Summary
Enantiomeric dipeptides self-assemble into hollow nanovesicles with thermal stability. These peptide nanostructures can encapsulate gold nanoparticles and sense chromium ions.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Biotechnology
Background:
- The self-assembly of peptide-based nanomaterials is crucial for developing advanced functional systems.
- Understanding the structure-property relationships of self-assembled peptides is key to their applications.
Purpose of the Study:
- To investigate the self-assembly behavior of enantiomeric dipeptides, Fmoc-Gly-l-Phg-OMe and Fmoc-Gly-d-Phg-OMe.
- To characterize the resulting nanostructures and explore their potential applications.
Main Methods:
- Field-Emission Transmission Electron Microscopy (FETEM) for nanostructure visualization.
- Analysis of crystalline states to understand supramolecular interactions.
- Thermal stability tests and drug/dye binding assays.
Main Results:
- Both dipeptides formed well-organized hollow nanovesicles in an acetonitrile-water mixture.
- Crystalline states revealed parallel β-sheet arrangements and helix-like structures with void spaces.
- Self-assembled nanostructures exhibited high thermal stability and strong binding affinity for bioactive molecules.
- Selective sensing of Cr6+ ions and encapsulation of gold nanoparticles (AuNPs) were demonstrated.
Conclusions:
- Enantiomeric dipeptides can form stable, hollow nanovesicles through self-assembly.
- These peptide nanostructures have potential applications in drug delivery, sensing, and nanotechnology.
- The study highlights the versatility of peptide self-assembly for creating functional nanomaterials.
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