Electronic tongue for environmental monitoring

UK researchers are developing a unique electronic tongue that can be dipped into rivers or industrial effluent streams to ensure that the water does not contain anything sinister.

The researchers, based at Cardiff Universitys School of Engineering, have demonstrated that the tasting part of the system can be fabricated from very small components, making it potentially easy and inexpensive to mass-produce. The next step would be to link the tongue to a computerised brain to analyse the signals it generates.

The work is being carried out by Professor David Barrows team, with funding from the Swindon based Engineering and Physical Sciences Research Council (EPSRC).

The system is based on an analytical technique called chromatography (a technique for separating mixtures). Here, the chemical sample, contained in a liquid or a gas, is passed through or over a solid matrix which has a high surface area for example a glass cylinder packed with silica beads. It is possible to attach a variety of chemical hooks on to the beads, so that as the sample passes down the column of beads different components will be grabbed by the hooks to differing extents. In this way the various components can be separated from the mixture and analysed.

The Cardiff researchers system works on broadly similar principles, but on a much smaller scale. If a silicon chip is treated with hydrofluoric acid in a controlled way, it becomes etched with millions of tiny pores and channels, of dimensions of nanometres. So if you etch a spot a millimetre square, you actually have several square metres of internal surface area, says Professor Barrow. It is in effect a tiny chromatographic extraction cartridge.

You could put the system in a river or factory process stream to monitor the mixtures flowing through it, says Professor Barrow.


Contact: Debra Lewis
Cardiff University

Page: 1

Related biology news :

1. Electronic tags reveal transatlantic migrations and breeding grounds of Atlantic bluefin tuna
2. Electronic dental anesthesia helps allay needle injection pain
3. Protecting the Beat Of Life: Test Center Studies Interaction Between Pacemakers & Electronic Article Surveillance Systems
4. For imitative parrots, wagging tongues may be key to vocalization
5. Imitative parrots just might tell you its all in the tongue
6. Flies may taste bitter better, first map of insect tongue reveals
7. A new study sheds light on how the tongue restores its ability to taste following surgery
8. Research suggests unborn children may be at risk from environmental pollution
9. Will a reduction in military spending improve our environmental future?
10. 8 environmental stewards win $900,000 in biodiversity awards
11. Chemical Society announces EPA awards for environmentally friendly technology

Post Your Comments:

(Date:9/12/2018)... ... September 12, 2018 , ... Captiva ... announced today it has received 510(k) clearance from the U.S. Food and Drug ... MIS Pedicle Screw System. , TowerLOX-EXT MIS Extended Tab Pedicle Screws provide the ...
(Date:9/1/2018)... ... ... this minute, Frenchman Ben Lecomte is hard at work on his second ocean crossing. After ... new challenge: going from Tokyo to San Francisco, churning his limbs eight hours a day ... As the first expedition of its kind, The Swim is far more than just an ...
(Date:8/31/2018)... Wash., and CARDIFF, Wales (PRWEB) , ... August ... ... Space Agency. Martha Sanchez, senior scientist, IBM Research. Jacklyn Novak, infrared materials engineer, ... of Katherine Johnson, the NASA mathematician who just celebrated her 100th birthday. Today, ...
Breaking Biology News(10 mins):
(Date:8/17/2018)... ... August 16, 2018 , ... The opening of the new Titusville facility ... Services in 2016. Chemko had a well established local presence, servicing the Space Coast ... projects such as the ongoing work at the Mobile Launch Platform (MLP) in support ...
(Date:8/17/2018)... ... August 16, 2018 , ... Ambry Genetics ... the AmbryShare project were published today in JAMA Oncology, identifying new and confirming ... ever conducted. , Every year hereditary breast cancer affects more than 20,000 women ...
(Date:8/14/2018)... , ... August 13, 2018 , ... ... chemical fume hoods and biological safety cabinets. In addition, Labconco produces other lab ... one measure of its commitment to quality and consistency in design and manufacturing. ...
(Date:8/14/2018)... ... 14, 2018 , ... The growing interest in PEEK-OPTIMA™ spinal ... Association of Orthopaedic Surgeons (CAOS) held in partnership with the North American Spine ... and Invibio Biomaterial Solutions partnered to demonstrate the new Uplifter® Expandable ...
Breaking Biology Technology:
Cached News: