Artificial nose - 8 News

Can an artificial nose detect food spoilage?

07-Sep-2023 - Researchers have developed an energy-efficient computing-based chip with smell-sensing units that can detect food spoilage and provides real-time conditions continuously throughout the spoilage process. The system is described in a study published in Advanced Science. Other electronic noses, or ...

Sniffing out your identity with breath biometrics

Researchers develop an olfactory sensor using your unique chemical composition to confirm who you are

24-Jun-2022 - Biometric authentication like fingerprint and iris scans are a staple of any spy movie, and trying to circumvent those security measures is often a core plot point. But these days the technology is not limited to spies, as fingerprint verification and facial recognition are now common features on ...

‘E-nose’ sniffs out mixtures of volatile organic compounds

Accurately distinguish xylene isomer mixtures

13-Jun-2022 - As paint thinner, ink and adhesives dry, they can release volatile organic compounds (VOCs), which can negatively impact health. Typically, one of those VOCs is xylene, which exists as three isomers with the same elements but slightly different arrangements. Because the isomers are so similar, ...

‘E-nose’ could someday diagnose Parkinson’s disease by ‘smelling’ skin

Artificial Intelligent Olfactory System could someday help diagnose Parkinson’s disease at an early stage, when treatment is most effective

25-Feb-2022 - A couple of years ago, a woman named Joy Milne made headlines when scientists discovered that she could “smell” Parkinson’s disease (PD) on people with the neurodegenerative disorder. Since then, researchers have been trying to build devices that could diagnose PD through odor compounds on the ...

Engineers develop prototype of electronic nose

A nose by any other name is a gas sensor

06-Sep-2021 - There’s nothing like the smell of freshly brewed coffee in the morning. But how does one measure that smell? There’s no energy in a smell to help estimate how potent the coffee might be. Instead, it’s the gases emitted from brewed coffee that contribute to the invigorating scent. The human nose ...

Chemical 'nose' sniffs critical differences in DNA structures

Detection innovation could enhance drug development and cancer research

05-May-2021 - Small changes in the structure of DNA have been implicated in breast cancer and other diseases, but they've been extremely difficult to detect -- until now. Using what they describe as a "chemical nose," UC Riverside chemists are able to "smell" when bits of DNA are folded in unusual ways. Their ...

Opto-electronic nose sniffs out toxic gases

15-Sep-2009 - Imagine a polka-dotted postage stamp that can sniff out poisonous gases or deadly toxins simply by changing colors. As reported in Nature Chemistry, Kenneth Suslick and his team at the University of Illinois have developed an artificial nose for the general detection of toxic industrial chemicals ...

Scientists moving closer to 'artificial noses'

More than one nanostring to their bow

27-Apr-2009 - Quick, certain and cheap detection of single molecules is a task that chemical analysts are now expected to perform. Luckily, there is a method they can employ for this, which uses nanotechnology: Specifically, they use "nano-electromechanical systems", or NEMS. These systems involve strings with ...