Using a few perforated sheets of plastic and extensive computation, Duke University engineers have demonstrated the world’s first three-dimensional acoustic cloak.
The new device reroutes sound waves to create the impression that both the cloak and anything beneath it are not there.
The acoustic cloaking device works in three dimensions, no matter which direction the sound is coming from or where the observer is located, and holds potential… read more
Researchers from the University of Surrey and Philips have identified a new transistor design that could make flexible electronics such as roll-up tablet computers available in the near future.
As reported in a study published in Nature Scientific Reports (open access), they further developed their “Source Gated Transistor” (SGT) to work with next-generation digital circuits.
Previously, the researchers found that SGTs could be applied to many… read more
Researchers at UC Berkeley found that an electrical current can be used to orchestrate the flow of a group of cells, an achievement that could establish the basis for more controlled forms of tissue engineering and for potential applications such as “smart bandages” that use electrical stimulation to help heal wounds.
In the experiments, described in a study published this week in the journal Nature Materials, the… read more
In a significant advance for the growing field of synthetic biology, Rice University bioengineers have created a toolkit of genes and hardware that uses colored lights and engineered bacteria to bring both mathematical predictability and cut-and-paste simplicity to the world of genetic circuit design.
“Life is controlled by DNA-based circuits, and these are similar to the circuits found in electronic devices like smartphones and computers,”… read more
Australian researchers have discovered how to use laser light to pick apart a substance atom by atom, allowing for creating new nanoscale diamond devices.
“Lasers are known to be very precise at cutting and drilling materials on a small scale — less than the width of a human hair, in fact — but on the atomic scale they have notoriously poor resolution,” says lead researcher Associate Professor… read more
Astronomers have announced a view of the universe though a lens more than 500,000 light years wide, as part of a program called “Frontier Fields” to search for the first galaxies.
The “lens” is actually a massive cluster of galaxies known as Abell 2744. As predicted by Einstein’s Theory of General Relativity, the mass of the cluster warps the fabric of space around it. Starlight passing by… read more
A team of MIT researchers has used a novel material that’s just a few atoms thick to create devices that can harness or emit light.
This proof-of-concept design could lead to ultrathin, lightweight, and flexible photovoltaic cells, light emitting diodes (LEDs), and other optoelectronic devices, the researchers say.
The research was published in the March 9 issue of Nature Nanotechnology. Researchers at Vienna University… read more
Georgia Tech Professor Gil Weinberg has created a robotic drumming prosthesis that can be attached to amputees.
It has motors that power two drumsticks. The first stick is controlled both physically by the musicians’ arms and electronically using electromyography (EMG) muscle sensors. The other stick “listens” to the music being played and improvises.
“The second drumstick has a mind of its own,” said Weinberg, founding director… read more
NASA has successfully concluded a remotely controlled test of new technologies that would empower future space robots to transfer hazardous oxidizer — a type of propellant — into the tanks of satellites in space today.
NASA is also incorporating results from this test and the Robotic Refueling Mission on the International Space Station to prepare for an upcoming ground-based… read more
University of Arizona researchers have snapped images of a planet outside our solar system with an Earth-based telescope using a CCD imaging sensor, which is also found in digital cameras, instead of an thermal infrared detector.
“This is an important next step in the search for exoplanets because imaging in visible light instead of thermal infrared is what we likely have to do if we want to… read more
Researchers in the Okinawa Institute of Science and Technology (OIST) Nanoparticles by Design Unit have created nanoparticles for biomedicine that address current problems with biomedically relevant nanoparticles, such as:
Researchers at Columbia University have made a significant step toward visualizing small biomolecules inside living biological systems with minimum disturbance, a longstanding goal in the scientific community.
In a study published March 2nd in Nature Methods, Assistant Professor of Chemistry Wei Min’s research team has developed a general method to image a broad spectrum of small biomolecules, such as small molecular drugs and nucleic acids, amino acids,… read more
Researchers at the Institute of Photonic Sciences (ICFO) in Catalonia have invented nano-optical tweezers capable of trapping and moving an individual nano-object in three dimensions using the force of light.
“This technique could revolutionize the field of nanoscience since, for the first time, we have shown that it is possible to trap, 3D-manipulate, and release a single nano-object without exerting any mechanical contact or other invasive action,” said Romain… read more
A team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has made major improvements in computer processing using an emerging class of magnetic materials called “multiferroics,” and these advances could make future devices far more energy-efficient than current technologies.
With today’s microprocessors, electric current passes through transistors (electronic switches). Because current involves the movement of electrons, this process produces heat —… read more
University of Washington scientists and engineers are developing a low-cost device that could help pathologists diagnose pancreatic cancer* earlier and faster.
The prototype can perform the basic steps for processing a biopsy, relying on fluid transport instead of human hands to process the tissue.
“This new process is expected to help the pathologist make a more rapid diagnosis and be able to determine more accurately how… read more