Read full article on original website
Researchers in Japan have created cyborg cockcroaches equipped with wireless technology that allows them to be controlled remotely.The team from the Riken institute’s Cluster for Pioneering Research (CPR) experimented with Madagascar cockcroaches, using wires to stimulate the leg segments of the 6cm-long creatures.An ultrathin solar panel was placed on the insects’ backs, which provided charge to batteries housed in specially fitted backpacks. After charging the battery with pseudo-sunlight for 30 minutes, the researchers were able to make the cockroaches turn left and right via remote control.The researchers hope the system could be used on cyborg cockroaches built to inspect hazardous...
Researchers from Western University have developed a material that could eventually improve the way drugs are administered to patients, by allowing doctors to "see" exactly whether drugs are reaching the targets and working properly. By combining a material already used to deliver medication to specific sites in the body with...
Wave power from the sea has a lot of potential as a renewable energy source, but it is still not widely used. However, it may soon receive the boost it needs to become commercially viable thanks to a new invention made up of tiny generators that rely on the triboelectric effect, according to an article published by New Scientist on Friday.
Did you know that bacteria in the natural world breathe by exhaling excess electrons, causing an intrinsic electrical grid? In a new study, Yale University researchers discovered that light could supercharge this electronic activity within biofilm bacteria, yielding an up to a 100-fold increase in electrical conductivity, according to a press release published by the institution earlier this month.
IN THIS ARTICLE
Researchers at the University of Bristol in the UK have taken a major step forward in synthetic biology by designing a system that performs several key functions of a living cell, including generating energy and expressing genes. Their artificially constructed cell even transformed from a sphere shape to a more natural amoeba-like shape over the first 48 hours of 'life', indicating that the proto-cytoskeletal filaments were working (or, as the researchers put it, were "structurally dynamic over extended time scales"). Building something that comes close to what we might think of as alive is no walk in the park, not least thanks...
A team of researchers based at MIT has developed a new, portable desalination device that could give people the ability to make saltwater drinkable. The researchers, led by Dr Jongyoon Han, a professor of electrical engineering, computer science, and biological engineering, began working on a small-scale desalination device as many as ten years ago. Last year, on Boston’s Carson Beach, they realised they’d achieved something significant. It was on that beach, Fortune reports, that researchers at MIT’s Research Laboratory for Electronics ran a glass of seawater through their desalination device before Junghyo Yoon drank it and gave a thumbs...
In a new study, scientists found a new part of the human body in our lungs. According to this new study, researchers have found an entirely new part of the cell in the delicate, branching passageways of the human lung, also known as the bronchioles.
Nitrogen may not get the same level of attention as its neighbors on the periodic table, carbon and oxygen. But like its neighbors, it's an element we can't live without. Nitrogen compounds have important roles in biology, including lowering blood pressure, helping relay signals in our bodies and providing nourishment for plants. In fact, industrially made fertilizers rich in nitrogen have effectively doubled the world's food-growing capacity.
YOU MAY ALSO LIKE
China is one step closer to achieving low cost hypersonic travel. Chinese researchers expect to significantly reduce the costs of commercial hypersonic travel with a novel engine using a combination of ethylene and coal powder, according to an article published by the South China Morning Post (SCMP)on Tuesday. In tests...
Two-dimensional semiconductors such as transition metal dichalcogenides are of potential use in electronic and optoelectronic devices due to their high mobility, direct optical bandgap and mechanical flexibility. These semiconductors are often encapsulated with hexagonal boron nitride to minimize extrinsic disorder and improve performance, but it is challenging to make high-quality contacts to encapsulated high-purity monolayers. Here we show that metal contacts embedded within hexagonal boron nitride can be transferred onto clean transition metal dichalcogenide monolayers, in an approach that reduces doping, strain and interfacial roughness compared with evaporated metal contacts. Contacts to encapsulated ultraclean tungsten diselenide monolayers created using this technique exhibit a room-temperature contact resistance of around 5"‰kÎ©"‰Î¼m, and provide transistors with zero hysteresis and room-temperature mobility of 655"‰cm2"‰Vâˆ’1"‰sâˆ’1. The contacts also exhibit a transfer length of 1"‰Î¼m, which is several orders of magnitude larger than the channel thickness.
Scientists who drilled deeper into an undersea earthquake fault than ever before have found that the tectonic stress in Japan's Nankai subduction zone is less than expected, according to a study from researchers at The University of Texas at Austin and University of Washington. The findings, published in the journal...
Antiferromagnetic materials, which have ordered but alternating magnetic moments, exhibit fast spin dynamics and produce negligible stray fields, and could be used to build high-density, high-speed memory devices with low power consumption. However, the efficient electrical detection and manipulation of antiferromagnetic moments is challenging. Here we show that the spin current and antiferromagnetic moments in the topological insulator/antiferromagnetic insulator bilayer (Bi,Sb)2Te3/Î±-Fe2O3 can be controlled via topological surface states. In particular, the orientation of the antiferromagnetic moments in Î±-Fe2O3 can modulate the spin current reflection at the bilayer interface. In turn, the spin current can control the moment rotation in the antiferromagnetic insulator by means of a giant spin"“orbit torque generated by the topological surface state. The required threshold switching current density is 3.5"‰Ã—"‰106"‰A"‰cmâˆ’2 at room temperature, which is one order of magnitude smaller than that required in heavy-metal/antiferromagnetic insulator systems.
Computers that can make use of the "spooky" properties of quantum mechanics to solve problems faster than current technology may sound alluring, but first they must overcome a massive disadvantage. Scientists from Japan may have found the answer through their demonstration of how a superconducting material, niobium nitride, can be added to a nitride-semiconductor substrate as a flat, crystalline layer. This process may lead to the easy manufacturing of quantum qubits connected with conventional computer devices.
We have used a calibrated, wide-field hyperspectral imaging instrument to obtain absolute spectrally and spatially resolved photoluminescence images in high growth-rate, rear-junction GaAs solar cells from 300 to 77Â K. At the site of some localized defects scattered throughout the active layer, we report a novel, double-peak luminescence emission with maximum peak energies corresponding to both the main band-to-band transition and a band-to-impurity optical transition below the band gap energy. Temperature-dependent imaging reveals that the evolution of the peak intensity and energy agrees well with a model of free-to-bound recombination with a deep impurity center, likely a gallium antisite defect. We also analyzed the temperature dependence of the band-to-band transition within the context of an analytical model of photoluminescence and discuss the agreement between the modeling results and external device parameters such as the open circuit voltage of the solar cells over this broad temperature range.
Stargazers across the globe will get a great view of Jupiter come Monday night, weather permitting. The solar system's largest planet will be unusually close to the Earth on Monday, astronomers said. It marks the first time Jupiter has been this close to Earth in 59 years, according to NASA.
A quadruple increase in carbon dioxide over East Asia causes changes in both fast and slow cloud responses
Extreme climate warming has been shown to change how cloud cover behaves throughout East Asia (EA). Recent research suggests that in a warmer climate with greater amounts of CO2 in the atmosphere, slow cloud responses to meteorological mechanisms can cause a cooling effect over certain regions of EA. However, in some areas within Asia, fast cloud responses may have the opposite effect. This new dynamic is concerning to climatologists who are working to better understand how CO2 and clouds interact.
Researchers at Tufts University have developed a method to make silk-based materials that refuse to stick to water, or almost anything else containing water for that matter. In fact, the modified silk, which can be molded into forms like plastic, or coated onto surfaces as a film, has non-stick properties that surpass those of nonstick surfaces typically used on cookware, and it could see applications that extend into a wide range of consumer products, as well as medicine.
Researchers create synthetic rocks to better understand how increasingly sought-after rare earth elements form
Researchers from Trinity College Dublin have shed new light on the formation of increasingly precious rare earth elements (REEs) by creating synthetic rocks and testing their responses to varying environmental conditions. REEs are used in electronic devices and green energy technologies, from smartphones to e-cars. The findings, just published in...
What do clouds, televisions, pharmaceuticals, and even the dirt under our feet have in common? They all have or use crystals in some way. Crystals are more than just fancy gemstones. Clouds form when water vapor condenses into ice crystals in the atmosphere. Liquid crystal displays are used in a variety of electronics, from televisions to instrument panels. Crystallization is an important step for drug discovery and purification. Crystals also make up rocks and other minerals. Their crucial role in the environment is a focus of materials science and health sciences research.
Not everything needs to be seen to be believed; certain things are more readily heard, like a train approaching its station. In a recent paper, published in Physical Review Letters, researchers have put their ears to the rail, discovering a new property of scattering amplitudes based on their study of sound waves through solid matter.