Bioinspired Supramolecular Dressing of Adaptable Programmability and Multifunctionality for Wound Healing

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Wound Healing Technologies

Background:

• Skin integrity is vital for protection; damage risks infection and scarring.
• Current wound dressings have limitations like poor exudate management and secondary damage from adhesion.
• A need exists for advanced dressings with integrated antibacterial, self-healing, biodegradable, and temperature-sensitive functions.

Purpose of the Study:

• To develop a multifunctional, bioinspired supramolecular hydrogel wound dressing.
• To integrate self-healing, antibacterial, temperature-sensitive, and tunable air permeability properties.
• To create a customizable and biodegradable dressing for enhanced wound management.

Main Methods:

• Fabrication of a peptide-agar double-network hydrogel using KYD (KYDYKYDYKK) self-assembly peptides and agar.
• Utilized 3D printing for precise dressing structure and tunable grid size.
• Incorporated lysine residues for antibacterial and self-healing capabilities; agar for temperature sensitivity.

Main Results:

• The developed hydrogel dressing exhibited reversible self-assembly, enabling self-healing and antibacterial activity.
• The material demonstrated temperature sensitivity and light-stimulated control over air permeability.
• The dressing is biodegradable, supports sustainable drug release, and offers programmable mechanical properties.

Conclusions:

• The bioinspired supramolecular hydrogel dressing successfully integrates multiple advanced functionalities.
• This customizable and biodegradable dressing shows significant potential for improving clinical wound management and patient outcomes.
• The design offers a promising platform for next-generation wound care solutions.