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6 September 2024

Bioactive capsules: a wide range of applications

Bioactive capsules: a wide range of applications

A research group from the Department of Chemistry at Universidade de Aveiro (UAveiro) has developed three-dimensional cell encapsulation systems coated with an intrinsically bioactive membrane derived from proteins that make up the basement membrane of native tissues. UAveiro has submitted a national patent application to protect this technology.

The group that developed the new technology, led by João Mano, professor and vice-director of CICECO-Aveiro Institute of Materials, also includes UAveiro doctoral student Catarina Passos and researcher Sónia Patrício. The research group highlights the potential of this technology: "These microcapsules are coated with nanolayers of proteins present in the basal membranes that support or surround many of the body's tissues, giving them physiologically relevant biochemical and biophysical properties for encapsulating cells, drugs and other bioactive compounds and subsequent application in tissue engineering and regenerative medicine as injectable pro-angiogenic biomaterials, drug screening devices as well as disease modeling platforms."

So far, the functionalities of compartmentalized membranes are mostly limited to the materials used, which are mostly bioinert materials, making it difficult to perform cellular functions. These capsules are made up of proteins that make up native basal membranes, so they represent an appropriate microenvironment for regulating cell functions ex-vivo and in-vitro, while preserving the advantages of conventional microcapsules, namely mechanical resistance, cell compartmentalization functions and permeability to essential molecules.

The development of this technology was supported by the MIMETic project PTDC/BTM-MAT/31210/2017.

This technology has been the subject of a national patent application, and extended protection of this technology is still possible in different territories.

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