Aquaporin-embedded biomimetic membranes for nanofiltration

Pei Shan Zhong, Tai Shung Chung, Kandiah Jeyaseelan, Arunmozhiarasi Armugam

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98 Citations (Scopus)

Abstract

For the first time, planar biomimetic membranes consisting of Aquaporin Z (AqpZ) were fabricated upon cellulose acetate membrane substrate functionalized with methacrylate end groups. By vesicle rupture of triblock copolymer (ABA) vesicles and UV polymerization, a selective layer upon the substrate for nano-filtration (NF) was formed. The AqpZ:ABA ratio was varied from 1:200 to 1:50 and its effects on nanofiltration performance were elucidated. It is found that the NF membranes comprising AqpZ:ABA ratio of 1:50 can give an impressive water permeability of 34LMHbar -1 and NaCl rejection of more than 30%. This study opens up new possibilities of using AqpZ embedded biomimetic membranes for water purification with advantages that include high throughput with lesser energy consumption.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalJournal of Membrane Science
Volume407-408
DOIs
Publication statusPublished - 15 Jul 2012
Externally publishedYes

Keywords

  • Aquaporin
  • Biomimetic
  • Nanofiltration
  • Vesicle rupture
  • Water purification

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