Researchers have created an ultrasensitive biosensor that could open up new opportunities for early detection of cancer and "personalized medicine" tailored to the specific biochemistry of individual patients. The device, which could be several hundred times more sensitive than other biosensors, combines the attributes of two distinctly different types of sensors.
According to predictions made by climate researchers with the Alfred Wegener Institute for Polar and Marine Research, the Filchner-Ronne Ice Shelf fringing the Weddell Sea in Antarctica may start to melt rapidly in this century and no longer act as a barrier for ice streams draining the Antarctic Ice Sheet. They claim this finding refutes previous assumptions that climate change would not affect the Weddell Sea.
A strong laser beam can remove an electron from an atom, a process that occur almost instantaneously. Researchers in Austria have been able to study this phenomenon with a time resolution of less than 10 attoseconds, allowing them to observe the atom being ionized and the free electron being “born”.
Researchers from North Carolina State University have developed a new way to fine-tune wireless power transfer (WPT) receivers, making the systems more efficient and functional. The researchers have shown that it is possible to transmit power wirelessly by using magnetic resonance.
Scientists at Weill Cornell Medical College have discovered that the single protein, alpha 2 delta, exerts a spigot-like function that controls the volume of neurotransmitters and other chemicals that flow between the synapses of brain neurons. The surprising finding tells us not only how brain cells communicate, but also how a certain pain drug works.
Camera maker Canon Inc. is moving toward fully automating digital camera production in an effort to cut costs—a key change being played out across Japan, a world leader in robotics. According to the company spokesman, counting on machines can help preserve the country's technological power.
Researchers have taken a step toward overcoming a key obstacle in commercializing "hyperbolic metamaterials," structures that could bring optical advances including ultrapowerful microscopes, computers, and solar cells. The researchers have shown how to create the metamaterials without the traditional silver or gold previously required.
Lawrence Berkeley National Laboratory theorists and experimenters have led in the exploration of the unique properties of topological insulators, where electrons may flow on the surface without resistance and with their spin orientations and directions intimately related. Recent research at beamline 12.0.1 of the Advanced Light Source opens the way to exciting prospects for practical new spintronic devices that exploit control of electron spin as well as charge.
Calculating the total capacity of a data network is a notoriously difficult problem. However, information theorists are beginning to make some headway. In a recently published paper, a team of information theorists have shown that in a wired network, network coding and error-correcting coding can be handled separately, without reduction in the network's capacity.
A new study from Massachusetts Institute of Technology scientists suggests that the guidelines governments use to determine when to evacuate people following a nuclear accident may be too conservative. The study found that when mice were exposed to radiation doses about 400 times greater than background levels for five weeks, no DNA damage could be detected.
Researchers at the Joint BioEnergy Institute have identified a tropical rainforest microbe that can endure relatively high concentrations of an ionic liquid used to dissolve cellulosic biomass for the production of advanced biofuels. They've also determined how the microbe accomplishes this, a discovery that holds broad implications beyond biofuels.
A team from Tel Aviv University and the Hebrew University of Jerusalem has married biology and engineering to produce a biosensor device called the Dip Chip, which detects toxicity quickly and accurately, generating low false positive and false negative readings. The technology contains microbes designed to exhibit a biological reaction to toxic chemicals, emulating the biological responses of humans or animals.
Researchers in Switzerland, together with industrial partners, have developed a protective vest with an integrated cooling system. Based on Coolpad technology, which was originally designed for use in cooling garments for medical applications, the vest contains vessels filled with water that is allowed to evaporate through a membrane, cooling down its surroundings.
A team of mathematical physics experts has found that the task of mapping geometric patterns linking structures to functions in plant leaves was made considerably easier after studying a specific vascular pattern of microscopic loops within loops that is found in the leaves of many plants. This formula, which helps plants redirect nutrients after injury, could illuminate complex structures elsewhere.
Two recent studies that tested two ways to protect autoworkers from injury found letting autoworkers sit while they reach into a car's interior to perform assembly could help prevent shoulder and back strain. But a possibly better overall solution the researchers suggested might be to tilt the entire car so that workers can stand up.