Fabrication Advances Make Tiny, Sensitive Biosensors
Yongkang Gao has spent much of the past three years using nanotechnology to improve the speed, efficiency and sensitivity of biosensors while dramatically decreasing their size and cost of operation.
His goal is to transform today’s relatively bulky surface plasmon resonance (SPR) biosensors, which take up most of a desktop, into nanoplasmonic biosensors that can be held in the hand and can perform hundreds of tests — medical, environmental or other — at a time.
Read more: http://www.laboratoryequipment.com/news/2014/03/fabrication-advances-make-tiny-sensitive-biosensors
Meat, Cheese May Be as Bad as Smoking
That chicken wing you’re eating could be as deadly as a cigarette. In a new study that tracked a large sample of adults for nearly two decades, researchers have found that eating a diet rich in animal proteins during middle age makes you four times more likely to die of cancer than someone with a low-protein diet — a mortality risk factor comparable to smoking.
“There’s a misconception that because we all eat, understanding nutrition is simple. But the question is not whether a certain diet allows you to do well for three days, but can it help you survive to be 100?” says corresponding author Valter Longo, professor of biogerontology at the Univ. of Southern California Davis School of Gerontology and director of the USC Longevity Institute.
Read more: http://www.laboratoryequipment.com/news/2014/03/meat-cheese-may-be-bad-smoking
Metamaterials Twist Sound
A Chinese-U.S. research team is exploring the use of metamaterials — artificial materials engineered to have exotic properties not found in nature — to create devices that manipulate sound in versatile and unprecedented ways.
In the journal Applied Physics Letters, which is produced by AIP Publishing, the team reports a simple design for a device, called an acoustic field rotator, which can twist wave fronts inside it so that they appear to be propagating from another direction.
Read more: http://www.laboratoryequipment.com/news/2014/03/metamaterials-twist-sound
Microgravity May Tame Tumors
In space, things don’t always behave the way we expect them to. In the case of cancer, researchers have found that this is a good thing: some tumors seem to be much less aggressive in the microgravity environment of space compared to their behavior on Earth. This observation, reported in research published in the Federation of the American Societies for Experimental Biology (FASEB) Journal, could help scientists understand the mechanism involved and develop drugs targeting tumors that don’t respond to current treatments. This work is the latest in a large body of evidence on how space exploration benefits those of us on Earth.
Read more: http://www.laboratoryequipment.com/news/2014/03/microgravity-may-tame-tumors
Brain Differences Linked to Insomnia
Johns Hopkins researchers are reporting that people with chronic insomnia show more plasticity and activity than good sleepers in the part of the brain that controls movement.
“Insomnia is not a nighttime disorder,” says study leader Rachel Salas, an assistant professor of neurology at the Johns Hopkins Univ. School of Medicine. “It’s a 24-hour brain condition, like a light switch that is always on. Our research adds information about differences in the brain associated with it.”
Read more: http://www.laboratoryequipment.com/news/2014/03/brain-differences-linked-insomnia
Samsung is apparently looking forward to seeing developers improve its new flagship device and wearables it introduced at MWC 2014. The company has released a Software Development Kit (SDK) for the Gear 2, Gear Fit and Galaxy S5, 9to5Google reports. But the most interesting detail is that Samsung will let developers make use of the fingerprint sensor inside the Galaxy S5’s home button to build apps that take advantage of it. Unfortunately, that may not necessarily good news for Galaxy S5 owners.
Nitrogen May Have Caused ‘Great Leap Forward’ in Ocean Life
Plankton in the Earth’s oceans received a huge boost when microorganisms capable of creating soluble nitrogen “fertilizer” directly from the atmosphere diversified and spread throughout the open ocean. This event occurred at around 800 million years ago and it changed forever how carbon was cycled in the ocean.
Read more: http://www.laboratoryequipment.com/news/2014/02/nitrogen-may-have-caused-great-leap-forward-ocean-life