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Related Experiment Video

Updated: Jul 27, 2025

Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility
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Antibacterial and Cytocompatible pH-Responsive Peptide Hydrogel.

Dona Imanga Upamadi Edirisinghe1, Areetha D'Souza1, Maryam Ramezani2

  • 1Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244, USA.

Molecules (Basel, Switzerland)
|June 10, 2023
PubMed
Summary
This summary is machine-generated.

A novel pH-responsive peptide hydrogel, FHHF-11, demonstrates tunable stiffness and antimicrobial properties. This biomaterial shows promise for advanced wound treatment applications, potentially improving patient healing outcomes.

Keywords:
antimicrobialcytocompatiblehydrogelpH sensitiverheologyself-healingwound healing

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Area of Science:

  • Biomaterials Science
  • Hydrogel Engineering
  • Wound Healing Technologies

Background:

  • Peptide-based hydrogels offer tunable properties for biomedical applications.
  • Controlling hydrogel stiffness in response to physiological pH changes is crucial for advanced wound care.
  • Antimicrobial properties and cytocompatibility are essential for effective wound healing materials.

Purpose of the Study:

  • To design and characterize a pH-responsive peptide hydrogel (FHHF-11) with tunable stiffness.
  • To evaluate the antimicrobial efficacy and cytocompatibility of the developed hydrogel.
  • To explore the potential of incorporating unnatural amino acids to enhance material properties.

Main Methods:

  • Peptide design and synthesis of FHHF-11.
  • Rheological measurements to determine shear modulus (G') at different pH values (6 and 8).
  • Antimicrobial assays and fibroblast cell culture to assess cytocompatibility.

Main Results:

  • FHHF-11 hydrogel exhibited pH-dependent stiffness changes within the physiological range.
  • The hydrogel demonstrated significant antimicrobial activity.
  • Incorporation of an unnatural amino acid (AzAla) enhanced antimicrobial properties.
  • The material showed good cytocompatibility with skin fibroblasts.

Conclusions:

  • FHHF-11 is a promising pH-responsive peptide hydrogel with tunable mechanical properties.
  • The hydrogel possesses antimicrobial and cytocompatible characteristics suitable for wound treatment.
  • This material represents a potential paradigm shift in wound healing, improving outcomes for patients.