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Updated: Sep 23, 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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Self-assembly pathways in a triphenylalanine peptide capped with aromatic groups.
Maria M Pérez-Madrigal1, Ana M Gil2, Jordi Casanovas3
1Departament d'Enginyeria Química (DEQ) and Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), EEBE, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain.
Colloids and Surfaces. B, Biointerfaces
|May 13, 2022
Summary
Triphenylalanine derivatives self-assemble into novel biofunctional materials. This study explores Fmoc-FFF-OBzl, revealing how end-capping groups and ultrasound influence self-assembly for biotechnological applications.
Area of Science:
- Biomaterials Science
- Supramolecular Chemistry
- Peptide Self-Assembly
Background:
- Peptide derivatives are explored for novel biofunctional materials.
- Triphenylalanine (FFF) homopeptides offer versatile self-assembly compared to even-residue peptides.
- Limited studies exist on end-capped triphenylalanine derivatives.
Purpose of the Study:
- To investigate the self-assembly of a novel triphenylalanine derivative, Fmoc-FFF-OBzl.
- To compare the self-assembly of Fmoc-FFF-OBzl with existing FFF and Fmoc-FFF-OFm derivatives.
- To examine the influence of end-capping groups, concentration, solvent, and ultrasound on self-assembly.
Main Methods:
- Synthesis and characterization of Fmoc-FFF-OBzl.
- Analysis of self-assembled supramolecular structures using various spectroscopic and microscopic techniques.
- Comparative studies with FFF and Fmoc-FFF-OFm under identical conditions.
- Investigation of ultrasound effects on self-assembly kinetics and morphology.
Main Results:
- Antiparallel β-sheet arrangements dominate in Fmoc-FFF-OBzl self-assembly.
- End-capping groups significantly influence π-π stacking interactions, affecting nucleation and growth.
- Fmoc-FFF-OBzl self-assembly is sensitive to peptide concentration, solvent composition, and ultrasound stimulation.
- FFF-based peptides yield diverse supramolecular structures with tunable morphologies.
Conclusions:
- Fmoc-FFF-OBzl exhibits distinct self-assembly behavior compared to FFF and Fmoc-FFF-OFm.
- π-π stacking interactions are critical drivers of supramolecular structure formation.
- External stimuli like ultrasound can modulate self-assembly processes.
- FFF-based peptides present a versatile platform for developing advanced biofunctional materials.
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