Science

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Mysteries of ‘Molecular Machines’ Revealed: Phenix software uses X-ray diffraction spots to produce 3-D image

Scientists are making it easier for pharmaceutical companies and researchers to see the detailed inner workings of molecular machines.

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A picture of a membrane protein called cysZ determined with Phenix software using data that could not previously be analyzed.

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Enzyme Biosensor Used for Rapid Measurement of Drug

Iranian researchers produced a new type of enzyme biosensor to increase the speed of clinical diagnosis.

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Kepler Proves It Can Still Find Planets

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Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material

An atomically thin material developed at Rice University may lead to the thinnest-ever imaging platform.

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Rice University researchers fabricated a three-pixel, CIS-based optoelectronic sensor array to test the two-dimensional compound's ability to capture image information. They started with few-layer exfoliated CIS on a silicon substrate, fabricated three pairs of titanium/gold electrodes on top of the CIS and cut the CIS into three sections with a focused ion beam.

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Creation of 'Rocker' protein opens way for new smart molecules in medicine, other fields

Human cells are protected by a largely impenetrable molecular membrane, but researchers have built the first artificial transporter protein that carries individual atoms across membranes, opening the possibility of engineering a new class of smart molecules with applications in fields as wide ranging as nanotechnology and medicine.

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Rocker (blue ribbons and yellow sticks) is an artificially designed protein that transports zinc ions (green) across biological membranes (gray sticks) by binding zinc ions it at one end of the molecule and rearranging ('rocking') to pass them onto the other end. The protein was built by researchers from Dartmouth College and other institutions.

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Horsehead of a Different Color

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The famous Horsehead nebula of visible-light images (inset) looks quite different when viewed in infrared light, as seen in this newly released image from NASA's Spitzer Space Telescope.

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NASA’s Kepler Reborn, Makes First Exoplanet Find of New Mission

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The artistic concept shows NASA's planet-hunting Kepler spacecraft operating in a new mission profile called K2. Using publicly available data, astronomers have confirmed K2's first exoplanet discovery proving Kepler can still find planets.

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Instant-start computers possible with new breakthrough

To encode data, today's computer memory technology uses electric currents - a major limiting factor for reliability and shrinkability, and the source of significant power consumption. If data could instead be encoded without current - for example, by an electric field applied across an insulator - it would require much less energy, and make things like low-power, instant-on computing a ubiquitous reality.

A team at Cornell University led by postdoctoral associate John Heron, who works jointly with Darrell Schlom, professor of Industrial Chemistry in the Department of Materials Science and Engineering, and Dan Ralph, professor of Physics in the College of Arts and Sciences, has made a breakthrough in that direction with a room-temperature magnetoelectric memory device. Equivalent to one computer bit, it exhibits the holy grail of next-generation nonvolatile memory: magnetic switchability, in two steps, with nothing but an electric field.

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NASA's Spaceborne Carbon Counter Maps New Details

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This map shows solar-induced fluorescence, a plant process that occurs during photosynthesis, from Aug. through Oct. 2014 as measured by NASA's Orbiting Carbon Observatory-2.

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Creation of 'Rocker' protein opens way for new smart molecules in medicine, other fields

Human cells are protected by a largely impenetrable molecular membrane, but researchers have built the first artificial transporter protein that carries individual atoms across membranes, opening the possibility of engineering a new class of smart molecules with applications in fields as wide ranging as nanotechnology and medicine.

50620.jpg
Rocker (blue ribbons and yellow sticks) is an artificially designed protein that transports zinc ions (green) across biological membranes (gray sticks) by binding zinc ions it at one end of the molecule and rearranging ('rocking') to pass them onto the other end. The protein was built by researchers from Dartmouth College and other institutions.