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Some carbon nanotubes deplete beneficial microbes in certain soils

January 24, 2013 1:53 pm | News | Comments

Some types of carbon nanotubes used for strengthening plastics and other materials may have an adverse effect on soil microbiology and soil microbial processes, a Purdue University study shows. Specifically, these raw, non-functionalized single-walled carbon nanotubes were shown to damage the active microbiology in low-organic soil.

Indiana using new concrete to increase bridge life span

January 24, 2013 12:04 pm | by Emil Venere, Purdue University | News | Comments

Civil engineers at Purdue University, working with the Indiana Department of Transportation, is in the process of deploying a new internally cured high-performance concrete on four bridges in Indiana. Typically curing methods involve a surface application of water on cement. The new method introduces water in internal pockets, enhancing curing efficacy and strengthening the finished concrete.

New effort to create green electronics, workforce

January 15, 2013 10:18 am | by Emil Venere, Purdue University | News | Comments

The world's love affair with gadgets—many of which contain hazardous materials—is generating millions of tons of electronic waste annually. Now, Purdue and Tuskegee universities are leading an international effort to replace conventional electronics with more sustainable technologies and train a workforce of specialists to make the transition possible.


Surgeons may use hand gestures to manipulate MRI images in OR

January 11, 2013 7:44 am | News | Comments

Doctors may soon be using a system in the operating room that recognizes hand gestures as commands to tell a computer to browse and display medical images of the patient during a surgery. Purdue University researchers are creating a system that uses depth-sensing cameras and specialized algorithms to recognize hand gestures as commands to manipulate MRI images on a large display.

Biochip technology uses tiny whirlpools to corral microbes

January 8, 2013 12:47 pm | News | Comments

Researchers have demonstrated a new technology that combines a laser and electric fields to create tiny centrifuge-like whirlpools to separate particles and microbes by size, a potential lab-on-a-chip system for medicine and research.

Eugene Cernan, “last man on moon”, landed 40 years ago

December 10, 2012 4:43 pm | by Emil Venere | News | Comments

Eugene A. Cernan, a Purdue University alumnus and the most recent person to walk on the moon, stepped out of the lunar lander 40 years ago Tuesday. Commander of Apollo 17, Cernan made three moonwalks, explored the barren landscape in a lunar rover, collected about 250 pounds of soil samples and moon rocks, and took scientific measurements.

4D transistor is preview of future computers

December 5, 2012 9:24 am | News | Comments

A new type of transistor shaped like a Christmas tree has arrived just in time for the holidays, but the prototype won't be nestled under the tree along with the other gifts. Researchers from Purdue and Harvard universities created the transistor, which is made from a material that could replace silicon within a decade.

Oil and water: The hot, cold interaction

December 4, 2012 8:23 am | News | Comments

Water transforms into a previously unknown structure in between a liquid and a vapor when in contact with alcohol molecules containing long oily chains, according to Purdue University researchers. However, around short oily chains water is more ice-like. The research team found that as they examined alcohols with increasingly long carbon chains, the transformation occurred at lower and lower temperatures.


Scotch tape finds new use as grasping "smart material"

November 21, 2012 7:55 am | News | Comments

Scotch tape, a versatile household staple and a mainstay of holiday gift-wrapping, may have a new scientific application as a shape-changing "smart material." Researchers used a laser to form slender half-centimeter-long fingers out of the tape. When exposed to water, the four wispy fingers morph into a tiny robotic claw that captures water droplets.

New tools to aid in recycling flat-screen monitors, televisions

October 10, 2012 8:41 am | News | Comments

Millions of flat-screen monitors and television sets will soon become obsolete, posing environmental hazards, and Purdue University researchers are developing tools to help industry efficiently recycle the products. The researchers are producing equipment and tools specifically designed to disassemble liquid-crystal displays with acceptable labor cost while recovering high-value components and reducing environmental hazards.

Interactive system detects touch and gestures on any surface

October 9, 2012 3:25 pm | News | Comments

People can let their fingers—and hands—do the talking with a new touch-activated system that projects onto walls and other surfaces and allows users to interact with their environment and each other. Developed at Purdue University, the "extended multitouch" system allows more than one person to use a surface at the same time and also enables people to use both hands, distinguishing between the right and left hand.

Watermelon shown to boost heart health

October 3, 2012 4:01 am | News | Comments

Eating an apple a day may keep the doctor away, but eating watermelon may just keep the cardiologist at bay. A study from Purdue University and the University of Kentucky showed that mice fed a diet including watermelon juice had lower weight, cholesterol, and arterial plaque than a control group.

Signature of long-sought particle could advance quantum computing

September 26, 2012 3:19 am | News | Comments

A Purdue University physicist, Leonid Rokhinson, has observed evidence of long-sought Majorana fermions, special particles that could unleash the potential of fault-tolerant quantum computing. Rokhinson led a team that is the first to successfully demonstrate the fractional a.c. Josephson effect, which is a signature of the particles.


New tool gives structural strength to 3D-printed works

September 18, 2012 9:46 am | News | Comments

Objects created using 3D printing have a common flaw: They are fragile and often fall apart or lose their shape. Researchers at Purdue University and Adobe's Advanced Technology Labs have jointly developed a program that automatically imparts strength to objects before they are printed, spurring on the trend of 3D printing.

Body heat, fermentation drive drug-delivery micropump

September 12, 2012 6:03 am | News | Comments

Purdue University researchers have created a new type of miniature pump activated by body heat that could be using in drug-delivery patches powered by fermentation. The micropump contains Baker's yeast and sugar in a small chamber, and when water is added and the patch is placed on the skin, the body heat and added water causes the yeast and sugar to ferment, generating a small amount of carbon dioxide gas, which pushes against a membrane and has been shown to pump for several hours.

Sliding metals show fluid-like behavior, new clues to wear

September 11, 2012 11:10 am | News | Comments

Purdue University researchers have discovered a swirling, fluid-like behavior in a solid piece of metal sliding over another, providing new insights into the mechanisms of wear and generation of machined surfaces that could help improve the durability of metal parts.

Nanoresonators might improve cell phone performance

August 30, 2012 12:56 pm | by Emil Venere | News | Comments

Because of the proliferation of mobile wireless devices, there is not enough radio spectrum to account for everybody's needs. To counter the problem, industry is trying to build systems that operate with more sharply defined channels so that more of them can fit within the available bandwidth. At Purdue University, the recent invention of nanoelectromechanical resonators may provide the solution.

Nano machine shop shapes nanowires, ultrathin films

August 30, 2012 3:30 am | News | Comments

A new nano machine shop that shapes nanowires and ultrathin films could represent a future manufacturing method for tiny structures with potentially revolutionary properties. Purdue University researchers used their technique to stamp nano- and microgears; form tiny circular shapes out of graphene; and change the shape of silver nanowires.

Superconductor 'flaws' could be key to its abilities

August 23, 2012 4:04 am | News | Comments

Physicists who study superconductivity strive to create a clean, perfect sample. But a Purdue University team that has mapped seemingly random, four-atom-wide dark lines of electrons on the surface of copper-oxygen based superconducting crystals has discovered that they exist throughout the crystal. The findings suggest the lines, which are “flaws”, could play a role in the material's superconductivity at much higher temperatures than others.

Sensor detects glucose in saliva, tears for diabetes testing

August 21, 2012 10:42 am | News | Comments

Researchers have created a new type of biosensor that can detect minute concentrations of glucose in saliva, tears, and urine, and might be manufactured at low cost because it does not require many processing steps to produce.

New design tool nixes mouse

August 14, 2012 11:31 am | News | Comments

Researchers have developed a design tool that enables people to create 3D objects with their bare hands by using a depth-sensing camera and advanced software algorithms to interpret hand movements and gestures.

Self-calibrating MEMS bring accuracy to nanotech

July 12, 2012 4:03 am | News | Comments

Researchers have demonstrated tiny machines, called self-calibratable micro-electromechanical systems, or MEMS, that could make possible super-accurate sensors and motors. Although MEMS are in commercial use, the new device is the first of its kind capable of self-calibration, a step critical for applications requiring high performance and accuracy.

Research: Sorghum should be in the mix as a biofuel crop

June 19, 2012 7:07 am | News | Comments

Sweet and biomass sorghum would meet the need for next-generation biofuels to be environmentally sustainable, easily adopted by producers, and take advantage of existing agricultural infrastructure, a group of researchers led by Purdue University scientists believes.

'No-sleep energy bugs' drain smartphone batteries

June 14, 2012 4:20 am | News | Comments

Researchers have proposed a method to automatically detect a new class of software glitches in smartphones called "no-sleep energy bugs," which can entirely drain batteries while the phones are not in use.

University professors lead voluntary code of ethics effort for journals

June 6, 2012 9:44 am | News | Comments

Professors from Purdue University and the University of North Carolina at Charlotte are bringing editors of academic journals together to reaffirm their commitment to research integrity.

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