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:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
(Date:3/24/2017)... -- Research and Markets has announced the addition of ... - Industry Forecast to 2025" report to their offering. ... The Global Biometric Vehicle ... around 15.1% over the next decade to reach approximately $1,580 million ... estimates and forecasts for all the given segments on global as ...
Breaking Biology News(10 mins):
(Date:4/25/2017)... , April 25, 2017 ... has licensed its novel immune-modulating technology to an undisclosed ... and allergy. Tregitopes, pronounced T·rej·itopes, are ... immunoglobulin by EpiVax CEO Annie De Groot ... intravenous immunoglobulin G, an autoimmune disease therapy, Tregitopes ...
(Date:4/24/2017)... ... 24, 2017 , ... It is well established that ligand ... broad application of this cellular target engagement concept to drug discovery has been ... stabilization assays are valuable methods for particular applications, but they can require target-specific ...
(Date:4/21/2017)... ... 2017 , ... The University of Connecticut, in partnership with ... startups through the UConn Innovation Fund. The $1.5 million UConn Innovation Fund was ... , The UConn Innovation Fund provides investments of up to $100,000 to companies ...
(Date:4/21/2017)... ... April 21, 2017 , ... Frederick Innovative ... range of emerging technology-based businesses, recently earned a $77,518 grant from the Rural ... Founded in 2004, FITCI is Frederick’s first incubator. A non-profit corporation, FITCI is ...
Breaking Biology Technology: