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Related Concept Videos

Peptide Bonds02:43

Peptide Bonds

A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
Protein Complex Assembly02:41

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Ligand Binding and Linkage00:49

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...

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Related Experiment Video

Updated: Jun 16, 2026

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Programming two-component peptide self-assembly by tuning the hydrophobic linker.

Sangshuang Li1, Huayang Liu1, Yu Fang1

  • 1Department of Chemistry, Westlake University, Institute of Natural Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China. wanghuaimin@westlake.edu.cn.

Faraday Discussions
|May 14, 2025
PubMed
Summary

Researchers explored how hydrophobic amino acid linkers influence molecular self-assembly. Specific linkers created unique two-dimensional (2D) nanostrips, offering insights for designing advanced 2D materials.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Nanotechnology

Background:

  • Molecular self-assembly utilizes non-covalent interactions to build complex structures.
  • Two-dimensional (2D) nanostructures offer high surface area and functionalization potential, crucial for applications.
  • Precise control over 2D nanostructure formation remains a significant challenge.

Purpose of the Study:

  • To investigate the impact of different hydrophobic amino acid linkers on self-assembly.
  • To understand the formation of microscopic morphology in two-component co-assembly systems.
  • To identify linkers that promote the formation of 2D nanostrips.

Main Methods:

  • Systematic exploration of various hydrophobic amino acid linkers (AA, VV, LL, NleNle, GG, PP).
  • Utilizing two-component co-assembly systems with strong electrostatic interactions.
  • Microscopic analysis to determine the resulting nanostructure morphology.

Main Results:

  • The AA linker uniquely formed 2D nanostrips that stacked into bilayer sheets.
  • VV, LL, and NleNle linkers predominantly formed one-dimensional fibers.
  • GG and PP linkers failed to produce stable aggregates, indicating linker-dependent assembly outcomes.

Conclusions:

  • Hydrophobic amino acid linkers play a critical role in directing molecular self-assembly towards specific morphologies.
  • Intermolecular interactions are key drivers for the development of 2D assemblies.
  • Findings provide valuable insights for the rational design and application of novel 2D materials.