Navigation Links
E-Noses: Testing their mettle against fly noses
Date:7/29/2009

Scientists from CSIRO's Food Futures Flagship have made a breakthrough in efforts to extend the sensory range of 'electronic noses' (e-noses) by developing a system for comparing their performance against the much-superior nose of the common house fly.

"Although e-noses already have many uses such as detecting spoilage in the food industry and monitoring air quality they are not as discriminating as biological noses," according to CSIRO scientist, Dr Stephen Trowell.

"Our efforts to improve e-noses recently received a boost following our development of a new system which enables us to compare technical sensors with biological sensors.

"We looked at how the most common type of e-nose sensors metal oxide or 'MOx' receptors sample the air around them. This is a critical factor in the performance of all noses. We then compared it with the performance of odorant receptors from the common house fly, Drosophila.

"We already know that fly receptors, unlike most other bioreceptors, are not very specific. Even so, it really surprised us how much narrower the responses of the MOx sensors were than the biological ones. We also found that the fly bioreceptors outperformed the MOx sensors in their levels of independence. The fly seems to make a range of broadly tuned receptors that are independent of each other and human engineers haven't yet worked out how to do this.

"These results, published today in the science journal PLoS ONE, will help in the design of better e-noses and help us understand better how biological systems work," Dr Trowell said.

Bio-benchmarking approaches such as this could also be applied to other classes of electronic nose sensors. The CSIRO research team is looking to collaborate with developers of solid-state chemical sensors in the search for more effective devices.

This research is part of a much larger project developing an improved electronic nose, the Cybernose, for use in the wine industry. Using insect receptors, the Cybernose will detect volatiles and contaminants in grapes and wine, thus allowing winemakers to improve their wines. When completed, the Cybernose will have wide application for detecting ripeness and spoilage in a range of foods as well as other applications such as detecting explosives.

The comparisons between the fly's receptors and those of the e-nose were made possible by recent descriptions of how odorant receptors function in Drosophila, which was the first insect to have its genome described. It was this new knowledge of the fly's genome that made the fly odorant receptor work possible.


'/>"/>

Contact: Julie Carter
julie.carter@csiro.au
61-262-464-040
CSIRO Australia
Source:Eurekalert

Related biology news :

1. University of Houston diesel testing center teams with state transportation agency to cut emissions
2. Microtest Labs Adds Dissolution Testing to its Suite of Analytical and Stability Testing Services
3. Comprehensive cardiogenetic testing for families of sudden unexplained death victims can save lives
4. Genetic testing for breast or ovarian cancer risk may be greatly underutilized
5. Countries unite to reduce animal use in product toxicity testing worldwide
6. Cystic fibrosis testing -- next steps
7. Blood testing, mosquito style
8. Fetal alcohol syndrome testing expands
9. New reference material can improve testing of multivitamin tablets
10. Consumers desire more genetic testing, but not designer babies
11. Genetic testing not cost-effective in guiding initial dosing of common blood thinner
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/17/2016)... , March 17, 2016 ABI Research, ... forecasts the global biometrics market will reach more ... 118% increase from 2015. Consumer electronics, particularly smartphones, ... fingerprint sensors anticipated to reach two billion shipments ... Dimitrios Pavlakis , Research Analyst at ABI ...
(Date:3/14/2016)... 14, 2016 http://www.apimages.com ) ... --> - Renvoi : image disponible via AP ... --> --> DERMALOG, le leader ... nouveaux lecteurs d,empreintes digitales pour l,enregistrement des réfugiés ... utilisé pour produire des cartes d,identité aux réfugiés. ...
(Date:3/10/2016)... BELL, Pa. , March 10, 2016   Unisys ... U.S. Customs and Border Protection (CBP) is testing its ... San Diego to help identify certain ... States . The test, designed to help determine the ... pedestrian environment, began in February and will run until May ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... ... May 23, 2016 , ... The need for blood donations in South Texas and across the ... Texas Blood & Tissue Center, blood donations are on the decline. In fact, donations across ... down 21 percent in South Texas in the last four years alone. , There is ...
(Date:5/23/2016)... , May 23, 2016 Zimmer Biomet Holdings, Inc. ... today announced that its Board of Directors has approved the ... second quarter of 2016. The cash dividend ... July 29, 2016 to stockholders of record as of the ... dividends are subject to approval of the Board of Directors ...
(Date:5/23/2016)... and LONDON , May 23, 2016 ... Frontage Boost Efficiency by 40% - Frontage Implement a ... Frontage Enforce Quality, Compliance and Traceability Within the Bioanalytical lab ... in the United States and ... be deployed across its laboratory facilities. In addition to serving as ...
(Date:5/23/2016)... ... May 23, 2016 , ... Foresight ... nanotechnology, announced the winners for the 2015 Foresight Institute Feynman Prizes. , ... in two categories, one for experiment and the other for theory in nanotechnology. ...
Breaking Biology Technology: