50 Current news of American Institute of Physics

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Computer model predicts red blood cell flow

15-Aug-2013

Adjacent to the walls of our arterioles, capillaries, and venules -- the blood vessels that make up our microcirculation -- there exists a peculiar thin layer of clear plasma, devoid of red blood cells. Although it is just a few millionths of a meter thick, that layer is vital. It controls, for ...

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Capturing live tumor cells in the blood

12-Aug-2013

Tumor cells circulating within a patient's bloodstream can carry cancer from a primary tumor site to distant sites of the body, spreading the disease. Now a team of researchers in China has developed a new microfluidic chip that can quickly and efficiently segregate and capture live circulating ...

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Near-atomically flat silicon could help pave the way to new chemical sensors

30-Oct-2012

Silicon is the workhorse of the electronics industry, serving as the base material for the tiny transistors that make it possible for digital clocks to tick and computers to calculate. Now scientists have succeeded in creating near-atomically flat silicon, of the orientation used by the ...

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Virus detector harnesses ring of light in 'whispering gallery mode'

27-Aug-2012

By affixing nanoscale gold spheres onto a microscopic bead of glass, researchers have created a super-sensor that can detect even single samples of the smallest known viruses. The sensor uses a peculiar behavior of light known as "whispering gallery mode," named after the famous circular gallery ...

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Elemental and magnetic imaging using X-rays and a microscope

15-Jun-2012

A team of researchers has developed a new microscope that can image the elemental and magnetic properties of a wide range of energy-important materials that are used in devices such as solar cells and solid-state lighting. The imager is based on a technique known as X-ray excited luminescence ...

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New way of detecting concealed radioactive material

University of Maryland researchers propose method to sniff out dirty bombs via the electromagnetic breakdown of air

15-Nov-2010

Researchers at the University of Maryland have proposed a scheme for detecting a concealed source of radioactive material without searching containers one by one. Detection of radioactive material concealed in shipping containers is important in the early prevention of "dirty" bomb construction. ...

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The effects of hydrogen on growing carbon nanotubes

13-Oct-2010

Carbon nanotubes -- long, hollow cylinders of carbon billionths of a meter in diameter -- have many potential uses in nanotechnology, optics, electronics, and many other fields. The exact properties of nanotubes depend on their structure, and scientists as yet have little control over that ...

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Watching electrons move in real time

28-Sep-2010

At its most basic level, understanding chemistry means understanding what electrons are doing. Research published in The Journal of Chemical Physics not only maps the movement of electrons in real time but also observes a concerted electron and proton transfer that is quite different from any ...

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Lead-free piezoelectric materials of the future

16-Sep-2010

Piezoelectric materials have fantastic properties: squeeze them and they generate an electrical field. And vice-versa, they contract or expand when jolted with an electrical pulse. With a name derived from the Greek word meaning to squeeze or press, the piezoelectric effect was just a curiosity ...

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How do your crystals grow?

16-Sep-2010

Because one of the main bottlenecks in determining the structure of protein molecules is producing good isolated single crystals, improved crystallization techniques would be useful in a wide range of genomics and pharmaceutical research. Research reported in The Journal of Chemical Physics uses ...

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