Breakthrough in Biomimetic Hydrogel Bioadhesives for Wound Management

Researchers from the Technion-Israel Institute of Technology have developed a novel biomimetic hydrogel bioadhesive, designed to offer superior wound management solutions. The bioadhesive, composed of modified natural tannic acid, hyperbranched polylysine, and acrylic acid, is fabricated via 3D printing, enabling precise and controlled production. This innovative bioadhesive exhibits robust wet and underwater tissue adhesion, outperforming commercial and recently reported bioadhesives, and demonstrates exceptional freeze resistance, pressure resistance, and infection resistance.

Key Takeaways:

• The novel biomimetic hydrogel bioadhesive, PTLAs, is designed to provide solutions for tissue adhesion under challenging environments, such as underwater, body fluids, cold, and pressure.
• PTLAs are fabricated via 3D printing, enabling precise and controlled production of bioadhesives that are customized in a personalized manner with great reproducibility.
• Ex vivo lamb and in vivo rat models demonstrate ultrafast (5 s) and efficient sealing and hemostasis, showcasing the bioadhesive's effectiveness.
• The self-gelling feature of PTLAs supports dry powder adhesion/sealing applications, practical packaging, and long-term storage.
• The research concluded that adaptive tissue-like PTLAs present transformative potential as bio-tapes, bio-bandages, bio-sealants, bio-carriers, and other healthcare solutions.
• The study was supported by the Neubauer Family Foundation and the Israel Science Foundation.
• The research team includes Qi Wu, Bassma Khamaisi, Eid Nassar-Marjiya, Shady Farah, and Meenakshi Chauhan.

Statistics:

• The bioadhesive demonstrated ultrafast sealing and hemostasis in just 5 seconds.
• PTLAs exhibited robust wet and underwater tissue adhesion, outperforming commercial and recently reported bioadhesives.
• The bioadhesive showed exceptional freeze resistance and pressure resistance, expanding its applicability to extreme environments.
• The self-gelling feature of PTLAs supports dry powder adhesion/sealing applications, practical packaging, and long-term storage.
• The study was published in the journal Advanced Materials, Vol. 2025.

Sources:

• NewsRx. Technion-Israel Institute of Technology Reports Findings in Biomimetics (Biomimetic 3D-Printed Adaptive Hydrogel Bioadhesives Featuring Superior Infection Resistance for Challenging Tissue Adhesion, Hemostasis, and Healthcare). Chemicals & Chemistry. August 8, 2025; p 5520.
• Advanced Materials, Vol. 2025, (Wiley-v C H Verlag Gmbh, Postfach 101161, 69451 Weinheim, Germany).