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Sniffing out a dangerous vapor

31-Mar-2016

Alkane fuel is a key ingredient in combustible material such as gasoline, airplane fuel, oil -- even a homemade bomb. Yet it's difficult to detect and there are no portable scanners available that can sniff out the odorless and colorless vapor. But University of Utah engineers have developed a ...

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Hydrocarbon storage, fracking and lightning risk

16-Mar-2016

Fires caused by lightning strikes on hydrocarbon storage plants are a century-old, yet to be addressed, problem. In the era of hydraulic fracturing, or fracking, this is becoming an even more poignant issue for the fossil fuel industry. Sterling Rooke of X8 Inc in Crofton, Maryland, and Miroslaw ...

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Newly developed liquid crystal elastomer material could enable advanced sensors

24-Dec-2015

Liquid crystal elastomers (LCEs), essentially rubbers with liquid crystal properties, can do a number of fascinating things, especially in the fields of optics, photonics, telecommunications and medicine. They can curl up, bend, twist, wrinkle and stretch when exposed to light, heat, gases and ...

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Ultrasensitive sensors made from boron-doped graphene

04-Nov-2015

Ultrasensitive gas sensors based on the infusion of boron atoms into graphene -- a tightly bound matrix of carbon atoms -- may soon be possible, according to an international team of researchers from six countries. Graphene is known for its remarkable strength and ability to transport electrons ...

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Nanoscale, multidimensional artificial magnet created

Applications might range from developing sensors to information encoding.

28-Oct-2015

Scientists from Los Alamos National Laboratory, in collaboration with a group at the University of Illinois at Urbana-Champaign, the Lawrence Berkeley National Laboratory’s Advanced Light Source and with other researchers nationwide, have realized a nanoscale, artificial magnet by arranging an ...

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Researchers build atomically thin gas and chemical sensors

03-Mar-2015

The relatively recent discovery of graphene, a two-dimensional layered material with unusual and attractive electronic, optical and thermal properties, led scientists to search for other atomically thin materials with unique properties.Molybdenum disulfide (MoS2) has proved to be one of the most ...

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Researchers synthesize material for efficient plasmonic devices in mid-infrared range

18-Feb-2015

A research team led by North Carolina State University has identified and synthesized a material that can be used to create efficient plasmonic devices that respond to light in the mid-infrared (IR) range. This is the first time anyone has demonstrated a material that performs efficiently in ...

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Tattoo-like sensor can detect glucose levels without a painful finger prick

16-Jan-2015

Scientists have developed the first ultra-thin, flexible device that sticks to skin like a rub-on tattoo and can detect a person's glucose levels. The sensor, reported in a proof-of-concept study in the ACS journal Analytical Chemistry, has the potential to eliminate finger-pricking for many ...

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Graphene imperfections key to creating hypersensitive 'electronic nose'

24-Sep-2014

Researchers have discovered a way to create a highly sensitive chemical sensor based on the crystalline flaws in graphene sheets. The imperfections have unique electronic properties that the researchers were able to exploit to increase sensitivity to absorbed gas molecules by 300 times. The study ...

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Rice nanophotonics experts create powerful molecular sensor

Sensor amplifies optical signature of single molecules about 100 billion times

23-Jul-2014

Nanophotonics experts at Rice University have created a unique sensor that amplifies the optical signature of molecules by about 100 billion times. Newly published tests found the device could accurately identify the composition and structure of individual molecules containing fewer than 20 ...

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