Hydrogels for islet encapsulation and implantation

Tech ID: 23319 / UC Case 2011-817-0

Brief Description

Islet encapsulation technologies have been intensely investigated for the past two decades as a treatment for diabetes. The technology involves encapsulating islet cells, which are insulin-producing cells, in microcapsules that would protect them from inflammatory reactions and immune attacks, while permitting nutrients to reach the cells. Although a variety of hydrogel matrices have been attempted for islet encapsulation and implantation, they have had issues with biocompatibility, biodegradability, islet viability, and sustainable insulin production. Novel hydrogels made from safe, biodegradable materials would have great potential of being functional matrices for islet encapsulation.

Researchers at the University of California, Irvine have developed a novel hydrogel that can be used as a matrix to encapsulate islets for the treatment of diabetes. This new hydrogel is biocompatible, biodegradable, safe, and non-immunogenic. The researchers have demonstrated that the encapsulated islets are highly functional and viable and can sustainably produce insulin.

Suggested uses

The encapsulated islets may be transplanted into patients for treating diabetes.


The SP hydrogel offers many advantages because it is non-cytotoxic, biocompatible, easy to handle, crosslinkable at mild physiological conditions, and injectable for in situ polymerization for transplantation.

Patent Status

Country Type Number Dated Case
United States Of America Issued Patent 9,289,500 03/22/2016 2011-817


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Other Information


Hydrogel, Islet, Islet encapsulation, Diabetes, Microcapsule, Biocompatible, Biodegradable

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