Injectable hydrogels for therapeutic delivery

This technology is a biocompatible, low toxicity injectable hydrogel system that uses extracellular vesicles as bioactive crosslinkers for tissue regeneration.

Unmet Need: Injectable, biocompatible hydrogels for therapeutic purposes

Current injectable hydrogels for tissue engineering rely on synthetic materials that cannot host the biological signals needed for successful integration with the body. While these synthetic hydrogels can be chemically modified with signaling molecules, they are limited to displaying only a few signals at once, falling short of the scope of signals displayed in natural tissues. Extracellular vesicles have a capacity to hold a large quantity of signal molecules, but existing approaches to incorporating these into biomaterials use covalent crosslinking methods that require harsh chemical conditions, lack injectability, and are hard to control, thus limiting their clinical utility.

The Technology: Nanovesicle-based injectable hydrogels for therapeutic delivery

This technology is an injectable supramolecular hydrogel formed through dynamic crosslinking of extracellular vesicles derived from cheap and accessible sources like yogurt with hydrophobically modified cellulose polymers. The resulting hydrogel exhibits tunable mechanical properties, ideal shear-thinning behavior during injection and stimulate tissue regeneration. Mechanical properties can be controlled by adjusting polymer concentration, chain length, and degree of functionalization as well as vesicle concentration. The resulting hydrogel is a versatile, biocompatible system for regenerative medicine and localized therapeutic delivery.

This technology has been validated in vivo, promoting spontaneous angiogenesis and lymphoid response in immunocompetent mice.

Applications:

  • Injectable drug delivery
  • Cancer therapy
  • Wound healing
  • Immunotherapy
  • Oral drug delivery

Advantages:

  • Biocompatible and non-cytotoxic
  • Utilizes low-cost material feedstocks
  • Tunable mechanical properties
  • Superior tissue regeneration compared to synthetic alternatives
  • Versatile platform for localized therapeutic delivery

Lead Inventor:

Santiago Correa, Ph.D.

Patent Information:

Patent Pending(WO/2026/090235)

Patent Pending([US63/844908])

Related Publications:

Tech Ventures Reference:

Quick Facts:
Tags
AngiogenesisBiocompatibilityBiomaterialCelluloseCovalent bondCross-linkDrug deliveryHydrogelImmunocompetenceImmunotherapyPolymerRegenerative medicineTissue engineeringWound healingYogurt
Inventors
Artemis MargaronisCaterina PiuntiCindy Huilin LuDaniella UvaldoSantiago CorreaSarah Payne BortelSatya Nayagam
Manager
Dovina Qu
Departments
Biomedical Engineering
Divisions
Fu Foundation School of Engineering and Applied Science (SEAS)
Reference Number
CU25086
Release Date
2025-07-15