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  4. Forward osmosis in a portable device for automatic osmolality adjustment of environmental water samples evaluated by cell-based biosensors
 
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research article

Forward osmosis in a portable device for automatic osmolality adjustment of environmental water samples evaluated by cell-based biosensors

Talaei, Sara  
•
Fujii, Yusaku
•
Truffer, Frederic
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2014
Journal of Membrane Science

Forward osmosis (FO) is a well-established process that has been used for different applications like desalination of water, concentration of foods or drugs, and energy harvesting. We exploited this process in a fully automatic system to adjust osmolality of environmental water samples that are to be tested by cell-based biosensors. In cell-based biosensors, samples are brought into contact with living cells. Therefore, the samples osmolality and should be in a range that is tolerable for the cells. Controlling these parameters has been a significant challenge especially in environmental monitoring, where the biosensors are required to work on-site. In this paper, we introduce a low-cost portable fluidic system that works automatically, and adjusts the osmolality and pH of environmental samples without diluting or denaturizing the ingredients of the samples. We report the performance of this system in adjusting the osmolality and pH of Swiss environmental waters with a natural osmolality of 4 1 mmol/kg and a pH of 7.84 +/- 0.02. (c) 2013 Elsevier B.V. All rights reserved.

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Type
research article
DOI
10.1016/j.memsci.2013.12.041
Web of Science ID

WOS:000330951200050

Author(s)
Talaei, Sara  
•
Fujii, Yusaku
•
Truffer, Frederic
•
Van der Wal, Peter D.
•
de Rooij, Nico F.  
Date Issued

2014

Publisher

Elsevier

Published in
Journal of Membrane Science
Volume

454

Start page

470

End page

477

Subjects

Sample pretreatment

•

Cell-based biosensors

•

Forward osmosis

•

Osmolality/pH adjustment

Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
SAMLAB  
Available on Infoscience
February 13, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/100587
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