title: One-step microfluidic synthesis of Janus microhydrogels with anisotropic thermo-responsive behavior and organophilic/hydrophilic loading capability.
abstract: We report one-step microfluidic synthesis and characterization of novel Janus microhydrogels composed entirely of the same base material, N-isopropylacrylamide (NIPAAm). The microhydrogels were fabricated by the microfluidic generation of Janus monomer microdroplets based on separation of a supersaturated aqueous NIPAAm solution into NIPAAm-rich and -poor phases followed by UV irradiation. The resulting Janus microhydrogels exhibited tunable anisotropic thermo-responsive behavior and organophilic/hydrophilic loading capability.
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro, Nam-gu, Pohang, Gyungbuk 790-784, South Korea.
authors.forename: Kyoung Duck
authors.initials: KD
authors.lastname: Seo
authors.forename: Junsang
authors.initials: J
authors.lastname: Doh
authors.forename: Dong Sung
authors.initials: DS
authors.lastname: Kim
mesh_terms: D000178:Acrylamides / Q000737:chemistry; D016880:Anisotropy; D020100:Hydrogels / Q000737:chemistry*; D044085:Microfluidics / Q000379:methods*; D011108:Polymers / Q000737:chemistry*
chemical_list: D000178:Acrylamides; D020100:Hydrogels; D011108:Polymers; C067295:N-isopropylacrylamide