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Washington University in St. Louis News & Information > News Topics > Science & Technology >
Materials Science
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Showing Materials Science Stories 1 through 10 of 35.
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A tiny cage of gold responds to light, opening to empty its contents
An exquisite container
Nov. 3,
2009 -- A tiny cage of gold covered with a smart polymer responds to light, opening to empty its contents and resealing when the light is turned off. The smart nanocages could be used to deliver drugs directly to target sites, thus avoiding systemic side effects.
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Europium discovery
New element found to be a superconductor
May 18,
2009 --
Of the 92 naturally occurring elements, add another to the list of those that are superconductors. James S. Schilling, Ph.D., professor of physics in Arts & Sciences at Washington University in St. Louis, and Mathew Debessai, Ph.D., — Schilling's doctoral student at the time — discovered that europium becomes superconducting at 1.8 K (-456 °F) and 80 GPa (790,000 atmospheres) of pressure, making it the 53rd known elemental superconductor and the 23rd at high pressure.
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Going platinum
New catalyst could boost cleaner fuel use
May 14,
2009 --
Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two-to-five times more effective than commercial catalysts. The novel technique eventually will enable a cost effective fuel cell technology, which has been waiting in the wings for decades and should give a boost for cleaner use of fuels worldwide.
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Birds of a feather
Study finds particles, molecules prefer not to mix
May 4,
2009 --
In the world of small things, shape, order and orientation are surprisingly important, according to findings from a new study by chemists at Washington University in St. Louis. Lev Gelb, WUSTL associate professor of chemistry, his graduate student Brian Barnes, and postdoctoral researcher Daniel Siderius, used computer simulations to study a very simple model of molecules on surfaces, which looks a lot like the computer game "Tetris." They have found that the shapes in this model (and in the game) do a number of surprising things.
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Novel energy
DOE makes largest research award in Danforth Campus history
April 28,
2009 -- Washington University and the Donald Danforth Plant Science Center have received two awards totaling $35 million from the U.S. Department of Energy (DOE) to do research on novel energy initiatives. At $20 million, the Washington University research award is the largest ever received on the Danforth Campus. The $15 million for the Donald Danforth Plant Science Center is the largest the organization has ever received.
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New spin on laser-flash analysis
Technique measures heat transport in the Earth's crust
March 30,
2009 --
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| David Kilper/WUSTL Photo Services |
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Putting a new spin on an old technique, Anne M. Hofmeister, Ph.D., research professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, has revolutionized scientists' understanding of heat transport in the Earth's crust, the outermost solid shell of our planet.
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Nanoscience pioneer explains new imaging techniques
Alivisatos to speak on new technique for creating biological imaging tools
Feb. 23,
2009 -- Paul Alivisatos shares his pioneering work with nanocrystals to develop medical breakthroughs in biological imaging at the Assembly Series on Wednesday, March 4, at 11 a.m. in Graham Chapel.
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Chemist receives funding to unravel tricks of neuronal wiring
Midline crossing
Dec. 22,
2008 --
Joshua Maurer, Ph.D., assistant professor of chemistry in Arts & Sciences at Washington University in St. Louis, has received a four-year, $1,216,000 grant from the National Institute of Mental Health for research titled, "Unraveling Development: New Materials for Understanding Neuronal Wiring." Maurer's long term objective is to develop methodology that allows the study of a variety of neuronal wiring processes. He is starting by unscrambling a phenomenon known as midline crossing using zebrafish. During development, neurons from the right eye cross the midline of the brain to make a connection in the left hemisphere.
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Saving lives
Today's military using more robots
Aug. 4,
2008 --
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| WUSTL computer scientists who work on robots say the machines still need the human touch. |
War casualties are typically kept behind tightly closed doors, but one company keeps the mangled pieces of its first casualty on display. This is no ordinary soldier, though — it is Packbot from iRobot Corporation. Robots in the military are no longer the stuff of science fiction, and WUSTL's Doug Few and Bill Smart are on the cutting edge of this new wave of technology. Few and Smart report that the military goal is to have approximately 30% of the Army comprised of robotic forces by approximately 2020.
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In the mix
Research aims to produce energy on the farm
April 15,
2008 --
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| David Kilper/WUSTL Photo |
| Muthanna Al-Dahhan (left) and graduate student Rajneesh Varma are researching effective ways to take agricultural waste and make biofuel out of it. |
Engineers at Washington University in St. Louis, using an impressive array of imaging and tracking technologies, have determined the importance of mixing in anaerobic digesters for bioenergy production and animal and farm wastes treatment. They are studying ways to take "the smell of money," as farmers long have termed manure's odor, and produce biogas from it.
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