한빛사논문
- 조회293
Ahmed Fuwad1,2, Hyunil Ryu3, Eui Don Han4, Jun-Hee Lee5, Noah Malmstadt6, Young-Rok Kim5, Young Ho Seo4, Sun Min Kim1,3,7 & Tae-Joon Jeon3,7,8
1Department of Mechanical Engineering, Inha University, Incheon 22212, Korea.
2Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan.
3Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Korea.
4Department of Mechatronics Engineering, Kangwon National University, Chuncheon 24341, Korea.
5Institute of Life Sciences and Resources & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea.
6Mork Family Department of Chemical Engineering & Materials Science, University of Southern California, Los Angeles, CA 90089, USA.
7Biohybrid Systems Research Center (BSRC), Inha University, Incheon 22212, Korea.
8Department of Biological Engineering, Inha University, Incheon 22212, Korea.
Corresponding authors : Correspondence to Sun Min Kim or Tae-Joon Jeon.
Abstract
Aquaporin (AQP) biomimetic membranes are a coming-of-age technology for water purification. Although several studies have reported aquaporin biomimetic membrane fabrication to date, these membranes show low water flux mainly due to the low porosity and inherently dense structure of the polymeric substrate materials. Herein, we report a ceramic-based aquaporin biomimetic membrane based on anodic aluminum oxide (AAO) as a substrate, which has a uniform porous structure with a high aspect ratio and pore density compared to conventional polymer substrates and exhibits a high water flux of 27.6 ± 3.6 LMH (L m−2 h−1) and superior membrane selectivity of 0.11 g L−1. Briefly, the AAO substrate was functionalized with amino-silane followed by polydopamine coating, then the AQP vesicles were immobilized on the functionalized AAO substrate surface using an electrokinetic method, and the water rejection performance of the membrane was analyzed in a forward osmosis system. Furthermore, a simple cryodesiccation method is introduced to improve the storage stability and easy transportation of aquaporin membranes, which does not require special environmental conditions to transport or store them.
논문정보
- Research article
- 2024년 02월 (BRIC 등록일 2024-02-16)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오소재
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