Abstract: The devices, methods, and compositions disclosed herein accomplish robust cell encapsulation in polymer microparticles using a vertically oriented microfluidic device. A hydrophilic polymer precursor solution is flowed into a first inlet channel, which extends inward from an upper surface of the device housing. A hydrophobic fluid is flowed into a second inlet channel, which extends inward from a lower surface of the device housing. The two inlet channels meet at a junction, and an outlet channel extends away from the two inlet channels. When the two inwardly flowing streams meet at the junction, the polymer precursor solution disperses into the hydrophobic fluid. The dispersed precursor droplets are photopolymerized into microparticles as they travel through the outlet channel. The resulting microparticles are highly uniform, and are larger than conventionally formed microparticles. Cells of varying types can be encapsulated with high viability and spatial uniformity.

Abstract: The devices, methods, and compositions disclosed herein accomplish robust cell encapsulation in polymer microparticles using a vertically oriented microfluidic device. A hydrophilic polymer precursor solution is flowed into a first inlet channel, which extends inward from an upper surface of the device housing. A hydrophobic fluid is flowed into a second inlet channel, which extends inward from a lower surface of the device housing. The two inlet channels meet at a junction, and an outlet channel extends away from the two inlet channels. When the two inwardly flowing streams meet at the junction, the polymer precursor solution disperses into the hydrophobic fluid. The dispersed precursor droplets are photopolymerized into microparticles as they travel through the outlet channel. The resulting microparticles are highly uniform, and are larger than conventionally formed microparticles. Cells of varying types can be encapsulated with high viability and spatial uniformity.

Abstract: The present invention relates to the production of endothelialized matrices and materials from immature endothelial cells using substrates to which particular peptides have been grafted. The resultant substrates can be used to capture and support immature endothelial cells. Further, the methods and compositions of the present invention provide viable cell delivery platforms that allow for production and provision of endothelialized medical devices and implants, including vascular grafts, stents, shunts, and valves, endothelialized surfaces and channels for in vitro testing devices, including microfluidic chips, and materials that support vascularization such as for use in engineered tissues. The present invention includes novel methods required for the successful production of cellularized substrates, systems and components used for the same, and methods of using the resultant cell and tissue compositions.

Abstract: The present invention relates to the production of endothelialized matrices and materials from immature endothelial cells using substrates to which particular peptides have been grafted. The resultant substrates can be used to capture and support immature endothelial cells. Further, the methods and compositions of the present invention provide viable cell delivery platforms that allow for production and provision of endothelialized medical devices and implants, including vascular grafts, stents, shunts, and valves, endothelialized surfaces and channels for in vitro testing devices, including microfluidic chips, and materials that support vascularization such as for use in engineered tissues. The present invention includes novel methods required for the successful production of cellularized substrates, systems and components used for the same, and methods of using the resultant cell and tissue compositions.

Abstract: The devices, methods, and compositions disclosed herein accomplish robust cell encapsulation in polymer microparticles using a vertically oriented microfluidic device. A hydrophilic polymer precursor solution is flowed into a first inlet channel, which extends inward from an upper surface of the device housing. A hydrophobic fluid is flowed into a second inlet channel, which extends inward from a lower surface of the device housing. The two inlet channels meet at a junction, and an outlet channel extends away from the two inlet channels. When the two inwardly flowing streams meet at the junction, the polymer precursor solution disperses into the hydrophobic fluid. The dispersed precursor droplets are photopolymerized into microparticles as they travel through the outlet channel. The resulting microparticles are highly uniform, and are larger than conventionally formed microparticles. Cells of varying types can be encapsulated with high viability and spatial uniformity.

Abstract: The present invention relates to the production of endothelialized matrices and materials from immature endothelial cells using substrates to which particular peptides have been grafted. The resultant substrates can be used to capture and support immature endothelial cells. Further, the methods and compositions of the present invention provide viable cell delivery platforms that allow for production and provision of endothelialized medical devices and implants, including vascular grafts, stents, shunts, and valves, endothelialized surfaces and channels for in vitro testing devices, including microfluidic chips, and materials that support vascularization such as for use in engineered tissues. The present invention includes novel methods required for the successful production of cellularized substrates, systems and components used for the same, and methods of using the resultant cell and tissue compositions.