220 Current news about the topic sensors

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Harvard scientists bend nanowires into 2-D and 3-D structures

New 'stereocenters' introduce triangular joints into otherwise linear nanomaterials

27-Oct-2009

Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional structures with correspondingly advanced functions. The work is described in the journal ...

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24-carat gold 'snowflakes' improve graphene's electrical properties

16-Oct-2009

In an effort to make graphene more useful in electronics applications, Kansas State University engineers made a golden discovery -- gold "snowflakes" on graphene. Vikas Berry is a K-State assistant professor of chemical engineering who works with graphene, a carbon material only a single atom ...

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Quantum-limited Measurement Method for Nanosensors

A team of scientists at the Max Planck Institute of Quantum Optics succeeds in applying a novel optical method to nanomechanical oscillators

14-Oct-2009

New fabrication techniques have enabled the development of on-chip mechanical elements whose dimensions are on the nanometre (one millionth mm) scale. Their application, however, has been limited by the lack of sufficiently sensitive techniques for measuring the motion of these tiny devices. A ...

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New technology detects chemical weapons in seconds

EPSRC-funded research develops advanced sensors for detection of chemicals and illegal drugs

07-Oct-2009

Scientists at Queen's University Belfast are developing new sensors to detect chemical agents and illegal drugs which will help in the fight against the threat of terrorist attacks. The devices will use special gel pads to 'swipe' an individual or crime scene to gather a sample which is then ...

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Licence to go where no chemist has gone before

30-Sep-2009

Scientists at The University of Nottingham have overcome one of the significant research challenges facing electrochemists. For the first time they have found a way of probing right into the heart of an electrochemical reaction. Their breakthrough will help scientists understand how catalysts ...

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Diamonds may be the ultimate MRI probe, say Quantum physicists

25-Sep-2009

Diamonds, it has long been said, are a girl's best friend. But a research team including a physicist from the National Institute of Standards and Technology (NIST) has recently found that the gems might turn out to be a patient's best friend as well. The team's work has the long-term goal of ...

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Portable and precise gas sensor could monitor pollution and detect disease

22-Sep-2009

In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. Nitric oxide, a gas well known to scientists for its myriad functions, has proven challenging to measure accurately outside the laboratory. A team of Princeton and ...

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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 ...

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Pitt researchers harness carbon nanomaterials for drug delivery systems, oxygen sensors

Researchers describe carbon nanocapsules for drug and energy storage in Advanced Materials, creation of highly sensitive oxygen sensors in Nature Chemistry

19-Aug-2009

Two nanoscale devices recently reported by University of Pittsburgh researchers in two separate journals harness the potential of carbon nanomaterials to enhance technologies for drug or imaging agent delivery and energy storage systems, in one case, and, in the other, bolster the sensitivity of ...

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New insights into the 'smell of death' could help recover bodies in disasters and solve crimes

18-Aug-2009

In an advance toward the first portable device for detecting human bodies buried in disasters and at crime scenes, scientists report early results from a project to establish the chemical fingerprint of death. Speaking here at the 238th National Meeting of the American Chemical Society (ACS), ...

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