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All Articles Tagged As: sensors
 | PAIR Technologies, a start-up company established by University of Delaware researchers and a former DuPont scientist, is preparing to commercialize a high-precision detector -- a planar array infrared spectrograph -- that can identify biological and chemical agents in solids, liquids and gases, in quantities as small as an atom, and in less than a second. ...> Full Article |
 | A small molecule designed to detect cyanide in water samples works quickly, is easy to use, and glows under ultraviolet or "black" light. Although the fluorescent molecule is not yet ready for market, its Indiana University Bloomington creators report in the Journal of the American Chemical Society (now online) that the tool is already able to sense cyanide below the toxicity threshold established by the World Health Organization. ...> Full Article |
 | Limit values for fine dust emissions are based on total particle weight. It is the ultra-fine particles, however, that are particularly harmful to health. A new technique separates them by size and identifies their composition -- directly where they arise. ...> Full Article |
 | Imagine a polka-dotted postage stamp that can sniff out poisonous gases or deadly toxins simply by changing colors. As reported in the September 13 issue of the journal 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 that is simple, fast and inexpensive -- and works by visualizing odors. ...> Full Article |
 | An international team of researchers from the Netherlands, Russia and Austria discovered that monolayer coverage and channel length set the mobility in self-assembled monolayer field-effect transistors. This opens the door to extremely sensitive chemical sensors that can be produced in a cost-effective way. The research was done at Philips Research Eindhoven and Eindhoven University of Technology. The findings were published as an advanced online publication in Nature Nanotechnology. ...> Full Article |
 | Our cells are controlled by billions of molecular "switches" and chemists at UC Santa Barbara have developed a theory that explains how these molecules work. Their findings may significantly help efforts to build biologically based sensors for the detection of chemicals ranging from drugs to explosives to disease markers. ...> Full Article |
Algae is a livid green giveaway of nutrient pollution in a lake. Scientists would love to reproduce that action in tiny particles that would turn different colors if exposed to biological weapons, food spoilage or signs of poor health in the blood.
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Shakespeare wrote "a rose by any other name would smell as sweet." But would it if the molecules that generate its fragrance were to change their shape? That's what Dr. Kevin Ryan, Assistant Professor of Chemistry at the City College of New York and collaborators set out to investigate.
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A Japanese research group found that the receptor for hot taste of wasabi, Japanese horseradish usually eaten with sushi, can sense alkaline pH caused by a base such as ammonia.
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Fluorogenic solution glows green within four hours when even minute traces of poisonous Pd(II) and Pt(IV) are present
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A chance discovery by a team of scientists using optical probes means that changes in cells in the human body could now be seen in a completely different light.
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 | Marrying a sensitive detector technology capable of distinguishing hundreds of different chemical compounds with a pattern-recognition module that mimics the way animals recognize odors, researchers have created a new approach for 'electronic noses' that is more adept than conventional methodologies at recognizing molecular features even for chemicals it has not been trained to detect. ...> Full Article |
'Catch and tell' sensor molecules send out light signals when they catch chemicals in blood.
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The sensor will be useful in airports and other high-risk areas
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 | Collaborating across engineering disciplines to make advanced 'cell-based sensors-on-a-chip' technology possible ...> Full Article |
 | A team of chemists and physicists have developed a tiny, inexpensive sensor chip capable of detecting trace amounts of hydrogen peroxide, a chemical used in the most common form of homemade explosives. ...> Full Article |
 | Researchers at MIT Lincoln Laboratory have developed a powerful sensor that can detect airborne pathogens such as anthrax and smallpox in less than three minutes. ...> Full Article |
 | Energy-efficient device could quickly detect hazardous chemicals ...> Full Article |
Microscopic, magnetized balls of Styrofoam have been turned into inexpensive biological sensors in a University of Michigan laboratory.
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Researchers developing new type of sensor that may be markedly better at sniffing out explosives, cocaine or environmental toxins than sensors now on the market
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 | A tiny 'electronic nose' that MIT researchers have engineered with a novel inkjet printing method could be used to detect hazards including carbon monoxide, harmful industrial solvents and explosives. ...> Full Article |
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