Scientists have come up with a way of creating sensors which could allow machines to smell more accurately than humans
Every odour has its own specific pattern which our noses are able to identify. Using a combination of proteins coupled to transistors, for the first time machines are able to differentiate smells that are mirror images of each other, so called chiral molecules, something that has not been possible before. The human nose can distinguish between some of these molecules and the different forms of the same molecule of carvone, for example, can smell either like spearmint or caraway. Previous machines would not have been able to distinguish between the two.
The development will allow the creation of a new generation of biosensors with an acute ability to sniff out problems. These could have many industrial uses such as telling when food has gone off, and they could even be accurate enough to smell how much pollution is in the atmosphere.
A collaboration of academics from The University of Manchester and the University of Bari in Italy, have created a biosensor that utilises an odorant binding protein. The team’s findings are published today in the journal Nature Communications.
Odorant binding proteins are found in the mucus of the nose, which work olfactory receptors helping us to create our perception of smell. The team have found a method of manufacturing these proteins in quantities that would allow them to be used in biosensors.
They have developed methods to change the way the proteins react so that they can recognise different types of chemicals. Using a type of transistor incorporating these proteins the scientists were able to measure the unique changes in current as the proteins reacted to odours, and record them. This is in effect the machine smelling the odour and then sending the message, which can then be decoded.
The system is incredibly sensitive with a detection limit that approaches that of the human nose.
Read more: How does a machine smell? Better than it did
The Latest on: Biosensors
The Latest on: New Discovery
via Google News
The Latest on: Biosensors
- Local researchers use biosensors to track reactions to Democratic debateon November 20, 2019 at 9:05 pm
COLLEGE STATION, Tex. (KBTX) - As viewers at home watched the Democratic debate Wednesday night, a local group of people watched it a different way. Researchers with the Texas A&M Human Behavior Lab ...
- Biosensors Resembling Miniature Venus Flytraps Developed to Capture Pollutantson November 20, 2019 at 8:41 am
Porphyrins are color-intense compounds; therefore, if a target molecule is trapped, this causes a drastic change in the color. This emphasizes the value of porphyrins as biosensors as it is evident ...
- New ‘Venus flytrap’ biosensors snap pollutants from the airon November 20, 2019 at 7:23 am
Scientists in Ireland have unveiled new biosensors, similar to Venus flytrap, that can grab targeted molecules from mid-air, such as pollutants. Unlike the famous plant which lures insects into its ...
- Li-ion battery components to be printed on an inkjet printeron November 20, 2019 at 6:37 am
The ongoing research may help to create power supplies for biosensors, wearable electronics, and other miniature devices. The results of the study are published in one of the leading scientific ...
- Biosensors Market Surge at 7.8% CAGR and Hit $32 Billion By 2026on November 19, 2019 at 11:32 pm
The report is readily available and can be dispatched immediately after payment confirmation.
- Molecular Biosensor Market Growth, Emerging Trends and Forecast By 2022on November 19, 2019 at 3:53 am
Nov 19, 2019 (AmericaNewsHour) -- Short for Biological Sensors, Biosensors are devices that capture the biological signal and convert it into a detectable electrical signal. It involves the ...
- Wearable graphene sensors use ambient light to monitor healthon November 18, 2019 at 8:47 am
2D materials in general, and graphene in particular, have tremendous potential for the development of next-generation wearable, soft biosensors because they combine electrical conductivity, optical ...
- Medical Biosensors Market Size 2019 –Application, Trends, Growth, Opportunities Worldwideon November 18, 2019 at 1:52 am
Nov 18, 2019 (The Expresswire) -- ReportsnReports.com publish a new report titled Global Medical Biosensors Market represents the current scenario of the market, and based on in-depth analysis of all ...
- Electrochemical Biosensors Market reach USD 30,907.3 Million by 2025 | MRFRon November 18, 2019 at 12:36 am
The Global Electrochemical Biosensors Market is expected to register a CAGR of 10.5% and is anticipated to reach USD 30,907.3 Million by 2025. Electrochemical biosensors are analytical devices used to ...
- Microplasma direct writing for site-selective surface functionalization of carbon microelectrodeson November 17, 2019 at 3:05 pm
Carbon micro- and nanoelectrodes fabricated by carbon microelectromechanical systems (carbon MEMS) are increasingly used in various biosensors and supercapacitor applications. Surface modification of ...
via Bing News