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Related Experiment Video

Updated: Apr 20, 2026

Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility

Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility

Published on: September 6, 2024

A peptide from human semenogelin I self-assembles into a pH-responsive hydrogel.

B Frohm¹, J E DeNizio, D S M Lee

¹Biochemistry and Structural Biology, Lund University, P O Box 124, SE-221 00 Lund, Sweden. sara.linse@biochemistry.lu.se.

|November 20, 2014

Summary

A peptide from human semenogelin I self-assembles into a hydrogel, showing potential for biomedical applications like drug delivery and wound healing.

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Last Updated: Apr 20, 2026

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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Published on: November 21, 2013

Area of Science:

Biomaterials Science
Protein Self-Assembly
Biomedical Engineering

Background:

Human semenogelin I contains peptide sequences with self-assembly properties.
Self-assembling peptides are promising for developing novel biomaterials.

Purpose of the Study:

To investigate the self-assembly behavior of the peptide GSFSIQYTYHV derived from human semenogelin I.
To characterize the resulting hydrogel properties and structure.
To explore its potential for biomedical applications.

Main Methods:

Peptide synthesis and characterization.
Rheological measurements to assess hydrogel elasticity.
Spectroscopic techniques (CD, fluorescence, FTIR) and cryo-TEM for structural analysis.
Dynamic light scattering for fibril length determination.
Thioflavin T fluorescence assay for fibril formation kinetics.

Main Results:

The peptide GSFSIQYTYHV spontaneously forms a transparent hydrogel in water at neutral pH.
The hydrogel exhibits a dominant elastic response across a wide frequency range.
Structural studies indicate the formation of long, micrometer-scale fibrillar aggregates with extended β-sheet conformation.
Fibril formation follows a nucleated reaction pathway.

Conclusions:

The peptide GSFSIQYTYHV self-assembles into a physically stable hydrogel with potential for biomaterial development.
Its low immunogenicity and self-assembling nature make it suitable for biomedical applications such as drug delivery and wound healing.
This peptide serves as a promising building block for advanced smart biomaterials.