Please use this identifier to cite or link to this item: https://doi.org/10.1039/c3ta10731k
Title: An aquaporin-based vesicle-embedded polymeric membrane for low energy water filtration
Authors: Xie, W.
He, F.
Wang, B.
Chung, T.-S. 
Jeyaseelan, K.
Armugam, A.
Tong, Y.W. 
Issue Date: 2013
Source: Xie, W., He, F., Wang, B., Chung, T.-S., Jeyaseelan, K., Armugam, A., Tong, Y.W. (2013). An aquaporin-based vesicle-embedded polymeric membrane for low energy water filtration. Journal of Materials Chemistry A 1 (26) : 7592-7600. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ta10731k
Abstract: Aquaporins (AQPs) are transmembrane water channel proteins that serve as nano-filters to selectively transport water molecules through plasma membranes in living cells at high speeds while blocking all other solutes from going through. It is envisioned that biomimetic membranes composed of aquaporin and amphiphilic phospholipids or copolymers may have great potential for use in high flux and low energy consumption water purification processes. However, the major barrier for using such a biomimetic membrane is that the ultrathin biomimetic bilayers are often too fragile to withstand high hydraulic or osmotic pressures in industrial water purification processes. Here, we show an innovative method to overcome membrane fragility by using these water channel proteins incorporated into vesicles and surface imprinting onto a substrate membrane. The water channel protein Aquaporin Z (AQPz) was reconstituted into self-assembled polymer vesicles and then immobilized onto a porous support membrane. In situ "surface imprinting" polymerization was then conducted to generate a dense hydrophobic polymer layer. This novel membrane was shown to have a well-controlled nano-structured selective layer that exhibits high mechanical strength and stability during the water filtration process. The water purification performance is significantly improved by using the AQPz-vesicle-imprinted membrane in either nanofiltration or forward osmosis mode. © 2013 The Royal Society of Chemistry.
Source Title: Journal of Materials Chemistry A
URI: http://scholarbank.nus.edu.sg/handle/10635/63463
ISSN: 20507488
DOI: 10.1039/c3ta10731k
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

35
checked on Dec 14, 2017

WEB OF SCIENCETM
Citations

30
checked on Nov 21, 2017

Page view(s)

70
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.