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News tagged with gas sensor

Twist-and-glow molecules aid rapid gas detection

In an emergency such as a factory fire, ascertaining which gases are present in the air is critical to preventing or minimizing poisoning (Fig. 1). This requires gas sensors that react quickly and provide ...

Chemistry / Materials Science

created Jan 13, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Graphene foam detects explosives, emissions better than today's gas sensors

(PhysOrg.com) -- A new study from Rensselaer Polytechnic Institute demonstrates how graphene foam can outperform leading commercial gas sensors in detecting potentially dangerous and explosive chemicals. The ...

Nanotechnology / Nanomaterials

created Nov 24, 2011 | popularity 3.9 / 5 (8) | comments 3 | with audio podcast

Insect cyborgs may become first responders, search and monitor hazardous environs

(PhysOrg.com) -- Research conducted at the University of Michigan College of Engineering may lead to the use of insects to monitor hazardous situations before sending in humans.

Technology / Engineering

created Nov 23, 2011 | popularity 4.7 / 5 (3) | comments 4 | with audio podcast

Porous crystals for natural gas storage

(PhysOrg.com) -- Porous crystals called metal-organic frameworks, with their nanoscopic pores and incredibly high surface areas, are excellent materials for natural gas storage. But with millions of different ...

Chemistry / Materials Science

created Nov 06, 2011 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Scientists carve nanowires out of ultrananocrystalline diamond thin films

A team of scientists working at Argonne National Laboratory's (ANL) Center for Nanoscale Materials has successfully carved ultrananocrystalline diamond (UNCD) thin films into nanowires, boosting the material's functionality ...

Nanotechnology / Nanophysics

created Nov 04, 2011 | popularity 4.8 / 5 (4) | comments 1 | with audio podcast

New graphene discovery boosts oil exploration efforts, could enable self-powered microsensors

(PhysOrg.com) -- Researchers at Rensselaer Polytechnic Institute have developed a new method to harvest energy from flowing water. This discovery aims to hasten the creation of self-powered microsensors for ...

Nanotechnology / Nanomaterials

created Jul 19, 2011 | popularity 3.9 / 5 (8) | comments 8 | with audio podcast

Nanowire-based sensors offer improved detection of volatile organic compounds

(PhysOrg.com) -- A team of researchers from the National Institute of Standards and Technology (NIST), George Mason University and the University of Maryland has made nano-sized sensors that detect volatile ...

Nanotechnology / Nanophysics

created Jun 22, 2011 | popularity not rated yet | comments 0 | with audio podcast

GPS stations can detect clandestine nuclear tests

At the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) meeting this week, American researchers are unveiling a new tool for detecting illegal nuclear explosions: the Earth's global positioning system (GPS).

Space & Earth / Earth Sciences

created Jun 07, 2011 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Solar-powered nano sensor targets gases more polluting than carbon

(PhysOrg.com) -- A solar-powered sensor station to monitor in real time the concentration of gases that are key culprits in climate change and air pollution has been installed on a QUT Gardens Point roof as ...

Technology / Engineering

created May 30, 2011 | popularity 3 / 5 (2) | comments 2 | with audio podcast

The secret behind NIST's new gas detector? Chirp before sniffing

Trace gas detection, the ability to detect a scant quantity of a particular molecule -- a whiff of formaldehyde or a hint of acetone -- in a vast sea of others, underlies many important applications, from ...

Physics / Optics & Photonics

created May 11, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Fast, easy way to make hydrogen nanosensors found by scientists

A team of Northern Illinois University scientists, with a major role played by NIU Ph.D. students, has discovered a new, convenient and inexpensive way to make high performance hydrogen sensors using palladium nanowires.

Nanotechnology / Nanophysics

created Jan 13, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Direct observation of carbon monoxide binding to metal-porphyrines

What makes carbon monoxide so toxic is that it blocks the binding site for oxygen in hemoglobin. This very mechanism, if better understood, could be used to implement sensors to warn against carbon monoxide. ...

Chemistry / Materials Science

created Jan 10, 2011 | popularity not rated yet | comments 0 | with audio podcast

Nanowires for the electronics and optoelectronics of the future

Organic semiconductors are very promising candidates as starting materials for the manufacture of cheap, large area and flexible electronic components such as transistors, diodes and sensors on a scale ranging ...

Nanotechnology / Nanophysics

created Jun 23, 2010 | popularity 5 / 5 (5) | comments 0

New gas sensor chip paves the way to autonomous e-nose

Imec and Holst Centre researchers have developed very sensitive integrated sensing elements for gas detection. The polymer-coated microbridges in high-density arrays can detect ppm-level concentrations of ...

Technology / Semiconductors

created Jun 09, 2010 | popularity 5 / 5 (3) | comments 0

Plastic laser detects tiny amounts of explosives

(PhysOrg.com) -- Detecting hidden explosives is a difficult task but now researchers in the UK have developed a completely new way of detecting them, with a laser sensor capable of detecting molecules of explosives ...

Physics / Condensed Matter

created Jun 08, 2010 | popularity 5 / 5 (11) | comments 1 | with audio podcast report