Abstract
This UCF invention is a novel hydrogel that integrates a UV crosslinked GelMA network with a reversible PVA–borax network to produce a strong, flexible, and self-healing material. The structure forms quickly using a simple mixture of GelMA, PVA, borax, and a photoinitiator, reducing fabrication time to minutes. The hydrogel’s mechanical behavior can be modified through kneading, allowing users to increase stiffness or toughness before UV curing. Its biocompatibility, tunability, and printability make it suitable for biomedical, industrial, and soft robotic applications.
Technical Details: The system contains two interpenetrating networks. GelMA forms a covalent structure after UV exposure, giving the hydrogel rigidity and bioactivity. PVA interacts with borax to create reversible bonds, adding flexibility and recovery after deformation. These networks combine to create a hydrogel with both strength and resilience.
Fabrication involves dissolving GelMA with a photoinitiator in borax solution, then adding PVA until gelation occurs. Mechanical kneading increases chain alignment and improves toughness before UV stabilizes the final structure. Optional additives—including nanomaterials, ceramics, bioactive factors, and rheology modifiers—enable customization for mechanical, biological, or electronic functions.
Benefit
High mechanical strength (50–200 kPa), outperforming typical GelMA hydrogels.Self healing behavior enabled by reversible PVA–borate bonding.Biocompatible and porous, supporting cell infiltration and tissue regeneration.Low cost, fast, and scalable fabrication suitable for laboratory and industrial use.Market Application
Biomedical: wound dressings, scaffolds, implants, and drug delivery platforms.Soft robotics: actuators, flexible components, and shape morphing materials.Environmental: water purification, moisture retention gels, and degradable materials.Consumer and cosmetic: moisturizing patches and personalized gel-based products.
Brochure
