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:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
(Date:4/5/2017)... LONDON , April 4, 2017 KEY ... is anticipated to expand at a CAGR of 25.76% ... neurodegenerative diseases is the primary factor for the growth ... full report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The ... of product, technology, application, and geography. The stem cell ...
(Date:3/30/2017)... , March 30, 2017  On April 6-7, ... Hack the Genome hackathon at Microsoft,s headquarters ... two-day competition will focus on developing health and wellness ... Hack the Genome is the first ... tremendous. The world,s largest companies in the genomics, tech ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... The Blavatnik Family ... and six Finalists of the 2017 Blavatnik Regional Awards for Young Scientists. ... and administered by the New York Academy of Sciences to honor the excellence ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the first-ever genomics analysis platform specifically designed for life science researchers to ... of pioneering researcher Rosalind Franklin, who made a major contribution to the ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ., a ... Webinar titled, “Pathology is going digital. Is your lab ready?” with Dr. Nicolas ... practices and how Proscia improves lab economics and realizes an increase in diagnostic ...
(Date:10/11/2017)... ... October 11, 2017 , ... Singh Biotechnology today ... designation to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of Transcription 3) ... able to cross the cell membrane and bind intracellular STAT3 and inhibit its ...
Breaking Biology Technology: