One-Step Microfluidic Synthesis of Janus Microhydrogels with Anisotropic Thermo-Responsive Behavior and Organophilic/Hydrophilic Loading Capability

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• 作者：Kyoung Duck Seo ; Junsang Doh ; Dong Sung Kim
• 刊名：Langmuir
• 出版年：2013
• 出版时间：December 10, 2013
• 年：2013
• 卷：29
• 期：49
• 页码：15137-15141
• 全文大小：379K
• 年卷期：v.29,no.49(December 10, 2013)
• ISSN：1520-5827

文摘

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.