When people have a difficult problem they often talk about “shining a light on it.” Creating and controlling high-temperature superconductors has been a problem for scientists and engineers for over two decades. Now, Yoram Dagan, a professor at Tel Aviv University's (TAU) Department of Physics and Center for Nanoscience and Nanotechnology, has made a breakthrough in superconductors by literally shining a light on them. By doing this, he is able to control their properties.
Researchers led by Professor Stephen Arnold at Polytechnic Institute of New York University have developed a new ultra-sensitive biosensor. Currently undergoing commercial development, the sensor is designed to inexpensively identify viruses in a doctor’s office within a matter of minutes instead of the weeks needed by conventional techniques ... and it can detect even the smallest RNA virus particle, MS2, which weighs only six attograms (10-18
The quest to give robots touch-sensitive artificial skin
and develop medical prostheses with a sense of touch
has shown much promise in recent years. The latest promising development comes out of Seoul National University's Multiscale Biomimetic Systems Laboratory where researchers have created a new biomimetic “electronic skin” that is inexpensive, yet sensitive enough to “feel” a drop of water.
is a hugely promising field, but while remarkable new treatments and diagnostic tests are being developed, questions remain
about the long term effects of nanoparticles on our bodies. Adding to our understanding of these issues, researchers have now reported that the use of quantum dots - tiny luminescent crystals that can be used to monitor disease
at a cellular level - appears to be safe in primates over a one-year period.
Most people associate vacuum tubes with a time when a single computer took up several rooms and "debugging" meant removing the insects stuck in the valves, but this technology may be in for a resurgence with news that researchers at NASA and the National Nanofab Center in South Korea are working on a miniaturized "vacuum channel transistor" - a best-of-both-worlds device that could find application in space and high-radiation environments.
Scientists at the Lawrence Berkeley National Laboratory have developed a means of converting mechanical energy into electrical energy using a harmless, specially engineered virus. By simply tapping a finger on a virus-coated electrode the size of a postage stamp, the scientists were able to produce enough current to drive a liquid crystal display, albeit a very small one. The scientists claim that this is the first time that the piezoelectrical properties of a biological material have been harnessed.
Lately we’re hearing more and more about tiny medical and environmental diagnostic devices, that can perform a variety of tests using very small fluid samples. Working with such small samples does present a challenge, however – how do you thoroughly mix tiny amounts of different fluids, or wrangle individual drops for analysis? According to a team of scientists from the University of Washington, the answer lies in the lotus leaf.
When a dentist drills out the decayed section of a tooth that has a cavity, it’s important that they also remove the bacteria that caused the decay in the first place – or at least, that they remove as much of it as possible. If they don’t, the bacteria can get reestablished, causing the filling to fail. Now, scientists from the University of Maryland’s School of Dentistry have developed a new cavity-filling system that they say will not only kill virtually all residual bacteria, but also help the tooth to regrow some of the tissue that was lost to decay.
good came out of the 2010 Gulf of Mexico oil spill
, it was that it got people thinking about technologies for cleaning up future spills. While things like magnetic soap
, and autonomous robots
are all in the works, a group of scientists recently announced the results of their research into another possibility – oil droplet-gathering microsubmarines.
Doctors and scientists wishing to decode a human genome can now do so in a day for US$1,000 a pop using the recently-released Ion Proton
sequencer. With a price tag of $149,000, though, the machine isn’t cheap – nor is it the be-all and end-all of desktop gene sequencing. For one thing, the tiny $900 MinION
sequencer should be available soon. Also, a team of scientists from Oak Ridge National Laboratory and Yale University have now developed a concept of their own, which could end up providing an even less expensive high-speed sequencer.