Publication

Portable automated osmolality and pH adjusting apparatus for pretreatment of environmental water samples delivered into a cell-based biosensor

Nico de Rooij
2012
Posters

Abstract

Using our portable in-line fluidic pretreatment apparatus we have adjusted the osmolality and pH of Swiss river samples automatically without any dilution or degradation of the samples. The samples will be tested by means of a cell-based water quality biosensor for detection of toxins. For cell-based biosensors, the osmolality and pH of the sample are critical parameters that must be precisely controlled to prevent cell lysis. Using forward osmosis (FO), we developed a device for a low-cost adjustment of these parameters to the standard values of a cell-culture medium (pH: 8.5, Osmolality: 330 ±10 mmol/kg).

Official source

https://infoscience.epfl.ch/entities/publication/5e979b77-bf24-4a05-a481-ed3b1e740297

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Nico de Rooij
2012
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5e979b77-bf24-4a05-a481-ed3b1e740297

About this result

Related concepts (26)

Microbial fuel cell

Microbial fuel cell (MFC) is a type of bioelectrochemical fuel cell system also known as micro fuel cell that generates electric current by diverting electrons produced from the microbial oxidation of reduced compounds (also known as fuel or electron donor) on the anode to oxidized compounds such as oxygen (also known as oxidizing agent or electron acceptor) on the cathode through an external electrical circuit. MFCs produce electricity by using the electrons derived from biochemical reactions catalyzed by bacteria.

Cell culture

Cell culture or tissue culture is the process by which cells are grown under controlled conditions, generally outside of their natural environment. The term "tissue culture" was coined by American pathologist Montrose Thomas Burrows. This technique is also called micropropagation. After the cells of interest have been isolated from living tissue, they can subsequently be maintained under carefully controlled conditions. They need to be kept at body temperature (37 °C) in an incubator.

Osmosis

Osmosis (ɒzˈmoʊsɪs, ɒs-) is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential (region of lower solute concentration) to a region of low water potential (region of higher solute concentration), in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations.