@article{cardenas-vasquez_smith_doolan_hsiao_2020, title={Shear-Induced Microstructural Variations in Nanoemulsion-Laden Organohydrogel Fibers}, volume={2}, ISSN={["2637-6105"]}, DOI={10.1021/acsapm.9b00979}, abstractNote={We report the formation of solid composite hydrogel fibers with tunable mass transport kinetics using a continuous extrusion process, in which the length scales of hydrophobic microdomains are tuned by temperature and flow conditions. The hydrophobic domains consist of surfactant-stabilized poly(dimethylsiloxane) (PDMS) oil droplets that undergo colloidal gelation at elevated temperatures due to interdroplet bridging. The hydrophilic domains consist of photo-cross-linked poly(ethylene glycol diacrylate) (PEGDA) molecules, which also serve as the thermogelator for the nanoemulsions. Microstructural variations are generated when the thermally gelled nanoemulsions flow through a cylindrical channel at various applied shear rates. We use confocal laser scanning microscopy and cryogenic scanning electron microscopy to demonstrate microstructural changes between the centers and edges of the fibers. The microstructures enable control over the release profile of a model active ingredient, retinol, from within the oil domains of the fibers to a fluid medium over a period of days. Our results suggest that hydrogel fibers can be produced with interconnected morphologies without the need for expensive postprocessing steps, thus opening up future avenues of manufacturing composite materials with excellent moisture-holding and mass transport properties for biomedical delivery applications.}, number={2}, journal={ACS APPLIED POLYMER MATERIALS}, author={Cardenas-Vasquez, E. Daniel and Smith, Kristine M. and Doolan, Taylor J. and Hsiao, Lilian C.}, year={2020}, month={Feb}, pages={594–603} }
 @article{kass_cardenas-vasquez_hsiao_2019, title={Composite double network hydrogels with thermoresponsive colloidal nanoemulsions}, volume={65}, ISSN={["1547-5905"]}, DOI={10.1002/aic.16817}, number={12}, journal={AICHE JOURNAL}, author={Kass, Lauren and Cardenas-Vasquez, Ernesto Daniel and Hsiao, Lilian C.}, year={2019}, month={Dec} }