|Top Technology News -- ScienceDaily
Wed, 21 Mar 2018 04:44:02 EDT
Improving fabrication process of nano-structures for electronic devices
Tue, 20 Mar 2018 16:37:47 EDT
Researchers have found a more efficient fabricating process to produce semiconductors used in today's electronic devices. They also confirmed that materials other than silicon can be used successfully in the development process that could increase performance of electronic devices.
TRAPPIST-1 planets provide clues to the nature of habitable worlds
Tue, 20 Mar 2018 14:13:20 EDT
To determine the composition of the TRAPPIST-1 planets, the team used a unique software package that uses state-of-the-art mineral physics calculators. The software, called ExoPlex, allowed the team to combine all of the available information about the TRAPPIST-1 system, including the chemical makeup of the star, rather than being limited to just the mass and radius of individual planets.
What plants can teach us about oil spill clean-up, microfluidics
Tue, 20 Mar 2018 14:13:15 EDT
For years, scientists have been inspired by nature to innovate solutions to tricky problems, even oil spills -- manmade disasters with devastating environmental and economic consequences. A new study takes a cue from leaf structure to fabricate material that can separate oil and water, which could lead to safer and more efficient oil spill clean-up methods.
Taming chaos: Calculating probability in complex systems
Tue, 20 Mar 2018 12:59:09 EDT
Weather patterns, brain activity and heartbeats each generate lines of complex data. To analyze this data, researchers must first divide up this continuous data into discrete pieces -- a task difficult to perform simply and accurately. Researchers have devised a method to transform data from complex systems, reducing the amount of important information lost, while still using less computing power than existing methods.
Hydrogel may help heal diabetic ulcers
Tue, 20 Mar 2018 12:59:06 EDT
A hydrogel that is adept at helping the body heal may also be particularly good at treating wounds related to diabetes.
Filling lithium-ion cells faster
Tue, 20 Mar 2018 12:35:16 EDT
Developers are using neutrons to analyze the filling of lithium ion batteries for hybrid cars with electrolytes. Their experiments show that electrodes are wetted twice as fast in a vacuum as under normal pressure.
Researchers create microlaser that flies along hollow optical fiber
Tue, 20 Mar 2018 12:35:03 EDT
For the first time, researchers have optically trapped and propelled a particle-based laser for centimeters inside an optical fiber.
A star disturbed the comets of the solar system 70,000 years ago
Tue, 20 Mar 2018 12:34:55 EDT
About 70,000 years ago, a small reddish star approached our solar system and gravitationally disturbed comets and asteroids. Astronomers have verified that the movement of some of these objects is still marked by that stellar encounter.
Low-tech, affordable solutions to improve water quality
Tue, 20 Mar 2018 12:34:43 EDT
Clever, fundamental engineering could go a long way toward preventing waterborne illness and exposure to carcinogenic substances in water.
Obtaining energy from marine currents
Tue, 20 Mar 2018 10:24:02 EDT
Researchers have developed procedures and designs to obtain energy from marine currents in areas of great depths optimizing the costs.
Ultrasound to enhance cancer drug delivery
Tue, 20 Mar 2018 08:44:20 EDT
Medical researchers are testing the use of pulsed sound waves to direct and focus cancer drug therapies.
Vegetable compound could have a key role in 'beeting' Alzheimer's disease
Tue, 20 Mar 2018 08:44:14 EDT
A compound in beets that gives the vegetable its distinctive red color could help slow the accumulation of misfolded proteins in the brain, a process associated with Alzheimer's disease. Scientists say this could lead to the development of drugs that could alleviate some of the long-term effects of the disease, the world's leading cause of dementia.
Making fragrances last longer
Tue, 20 Mar 2018 08:44:11 EDT
From floral perfume to fruity body wash and shampoos, scents heavily influence consumer purchases. But for most, the smell doesn't last long after showering. Scientists have now developed a way to get those fragrances to stick to the skin longer instead of washing down the drain immediately after being applied.
Smoked foods are tastier, less harmful with a tip from the auto industry
Tue, 20 Mar 2018 08:44:09 EDT
Infusing foods with smoke can impart delicious nuanced flavors, but could also come with an unwelcome side of carcinogens. To reduce the carcinogen content of smoked foods, researchers took a lesson from the automobile industry, running the smoke through a zeolite filter to remove harmful compounds. It worked, and with a happy bonus: superior smoke flavor.
'Candy cane' polymer weave could power future functional fabrics and devices
Tue, 20 Mar 2018 08:44:05 EDT
If scientists are going to deliver on the promise of implantable artificial organs or clothing that dries itself, they'll first need to solve the problem of inflexible batteries that run out of juice too quickly. Today, researchers report that they've developed a new material by weaving two polymers together in a way that increases charge storage capacity.
Continuously killing bacteria on coated stainless steel -- add bleach to recharge
Tue, 20 Mar 2018 08:44:00 EDT
Stainless steel is the gold standard for kitchen appliances and cookware, but bacteria can grow on these surfaces, contaminating food. Current coatings available on the market are pricey and potentially harmful, so scientists have now developed an affordable specialized polymer coating for such surfaces that they can recharge with bleach treatments.
Tiny gels sop up intestinal toxins
Tue, 20 Mar 2018 08:43:57 EDT
Bacterial infections that target the intestine can cause conditions that range from uncomfortable to deadly. While it's easy to blame the bacteria, it's actually the toxins the bacteria produce that trigger inflammation, diarrhea, fever and cramps. Researchers now report the development of a microgel scavenger that targets toxins instead of bacteria.
Researchers create new low-cost, sustainable material for reducing air and water pollution
Tue, 20 Mar 2018 08:43:42 EDT
A new class of hybrid materials shows promise as an affordable and sustainable product for reducing particulate matter in air and organic pollutants in wastewater. The material, produced inexpensively from an industrial waste by-product and naturally abundant polymers, performed more efficiently than activated carbon, the current gold standard.
Pipe-crawling robot will help decommission DOE nuclear facility
Tue, 20 Mar 2018 08:43:15 EDT
A pair of autonomous robots will soon be driving through miles of pipes at the US Department of Energy's former uranium enrichment plant in Piketon, Ohio, to identify uranium deposits on pipe walls.
Sound new technique tunes into the shifting shapes of biology
Tue, 20 Mar 2018 08:43:13 EDT
Scientists have come up with a novel way of quantifying cell shapes -- with a lot of mathematics and a little musical inspiration.
Social media use at age 10 could reduce wellbeing of adolescent girls
Mon, 19 Mar 2018 21:56:57 EDT
Social media use may have different effects on wellbeing in adolescent boys and girls, according to new research. Researchers found an association between increased time spent on social media in early adolescence (age 10) and reduced well-being in later adolescence (age 10-15) -- but only among girls.
Shedding light on the mystery of the superconducting dome
Mon, 19 Mar 2018 15:57:25 EDT
Physicists have induced superconductivity in a monolayer of tungsten disulfide. By using an increasing electric field, they were able to show how the material turns from an insulator into a superconductor and then back into a 're-entrant' insulator again. Their results show the typical 'dome-shaped' superconducting phase, and finally provide an explanation for this phenomenon.
Modified biomaterials self-assemble on temperature cues
Mon, 19 Mar 2018 14:45:52 EDT
Biomedical engineers have demonstrated a new approach to making self-assembled biomaterials that relies on protein modifications and temperature. The hybrid approach allows researchers to control self-assembly more precisely, which may prove useful for a variety of biomedical applications, from drug delivery to wound-healing.
Geoengineering polar glaciers to slow sea-level rise
Mon, 19 Mar 2018 14:45:50 EDT
Targeted geoengineering to preserve continental ice sheets deserves serious research and investment, argues an international team of researchers. Without intervention, by 2100 most large coastal cities will face sea levels that are more than three feet higher than they are currently.
Designing diamonds for medical imaging technologies
Mon, 19 Mar 2018 14:45:47 EDT
Researchers have optimized the design of laboratory-grown, synthetic diamonds. This brings the new technology one step closer to enhancing biosensing applications, such as magnetic brain imaging.
Mars' oceans formed early, possibly aided by massive volcanic eruptions
Mon, 19 Mar 2018 12:42:55 EDT
A new theory about how oceans and volcanoes interacted during the early history of Mars supports the idea that liquid water was once abundant and may still exist underground. Geophysicists propose that the oceans originated several hundred million years earlier than thought, as the volcanic province Tharsis formed, and that greenhouse gases enabled the oceans. The theory predicts smaller oceans, more in line with estimates of water underground and at the poles today.
A new kind of quantum bits in two dimensions
Mon, 19 Mar 2018 12:42:52 EDT
Two novel materials, each composed of a single atomic layer and the tip of a scanning tunneling microscope - these are the ingredients to create a novel kind of a so-called 'quantum dot'. These extremely small nanostructures allow delicate control of individual electrons by fine-tuning their energy levels directly. Such devices are key for modern quantum technologies.
A future colorfully lit by mystifying physics of paint-on semiconductors
Mon, 19 Mar 2018 12:42:26 EDT
It defies conventional wisdom about semiconductors. It's baffling that it even works. It eludes physics models that try to explain it. This newly tested class of light-emitting semiconductors is so easy to produce from solution that it could be painted onto surfaces to light up our future in myriad colors shining from affordable lasers, LEDs, and even window glass.
Programming DNA to deliver cancer drugs
Mon, 19 Mar 2018 12:42:15 EDT
A research team has developed technology to program strands of DNA into switches that turn proteins on and off. This technology could lead to the development of new cancer therapies and other drugs.
New method manages and stores data from millions of nerve cells -- in real time
Mon, 19 Mar 2018 12:05:02 EDT
Recent developments in neuroscience set high requirements for sophisticated data management, not least when implantable Brain Machine Interfaces are used to establish electronic communication between the brain's nerve cells and computers. A new method makes it possible to recode neural signals into a format that computer processors can use instantly.
Cosmologists create largest simulation of galaxy formation, break their own record
Mon, 19 Mar 2018 12:04:59 EDT
Cosmology researchers are releasing initial findings from IllustrisTNG, their follow-up to the 2015 record-breaking Illustris simulation -- the largest-ever hydrological simulation of galaxy formation.
Scientists create microscopic 'swimmers' controlled by a magnetic field
Mon, 19 Mar 2018 12:04:56 EDT
Microscopic, magnetic 'swimmers' may someday be used to carry cargoes in fluids, such as drugs that need precise placement to treat disease.
Helium plays a 'nanny' role in forming chemical compounds under pressure
Mon, 19 Mar 2018 12:04:53 EDT
Helium, a noble gas, was long believed to be 'too aloof' to react with the other elements on the periodic table. Now, however, scientists have provided a theoretical explanation of how helium may be capable of forming stable compounds.
Interstellar asteroid, 'Oumuamua, likely came from a binary star system
Mon, 19 Mar 2018 12:01:11 EDT
New research finds that 'Oumuamua, the rocky object identified as the first confirmed interstellar asteroid, very likely came from a binary star system.
Scientists have a new way to gauge the growth of nanowires
Mon, 19 Mar 2018 11:58:10 EDT
Researchers have observed the formation of two kinds of defects in individual nanowires, which are smaller in diameter than a human hair.
Arctic sea ice becoming a spring hazard for North Atlantic ships
Mon, 19 Mar 2018 11:57:55 EDT
More Arctic sea ice is entering the North Atlantic Ocean than before, making it increasingly dangerous for ships to navigate those waters in late spring, according to new research.
Preventing hurricanes using air bubbles
Mon, 19 Mar 2018 09:10:35 EDT
Many people have tried to find ways of preventing hurricanes before they make landfall, resulting in the loss of human lives. Researchers believe that the answer lies in cold bubbles.
From landfill to lipstick: Grape waste as a cosmetic and food ingredient
Mon, 19 Mar 2018 09:07:34 EDT
The world drinks a lot of wine, and that means a lot of grapes are consumed. But not every part of the grape ends up in the bottle. Seeds, stalks and skins end up in landfills. Now, researchers say they have found useful commercial applications, such as prolonging the shelf life of fatty foods, for these wine leftovers.
Implantable sensor relays real-time personal health data to a cell phone
Mon, 19 Mar 2018 09:07:31 EDT
Personalized medicine is one step closer thanks to tiny, implantable sensors that can send data to a computer or cell phone to give early warning of a person's developing health problems. Future versions of these devices could indicate the most effective type of exercise for an individual athlete, or help in the triage of wounded soldiers.
Identifying 'designer' drugs taken by overdose patients
Mon, 19 Mar 2018 09:07:25 EDT
Medical professionals are scrambling to meet growing demand for emergency room treatment of drug overdoses, but they're hampered by the lack of a quick and easy test to screen patients for synthetic 'designer' drugs. Chemists are developing such a test with the hope that hospitals could eventually use it to choose the appropriate treatment.
Living sensor can potentially prevent environmental disasters from fuel spills
Sun, 18 Mar 2018 14:48:48 EDT
By the time a Colonial Pipeline leak was detected last fall during a routine inspection, vapors from the quarter-million gallons of released gasoline were so strong they prevented pipeline repair for days. Now, scientists report technology that would alert pipeline managers about leaks much earlier, avoiding the environmental disasters and fuel distribution disruptions resulting from pipeline leaks.
The Swiss army knife of smoke screens
Sun, 18 Mar 2018 14:48:45 EDT
The military uses smoke grenades to provide cover for people and tanks on the move. But the smoke arms race is on. Increasingly, sensors can now go beyond the visible range into the infrared (IR) region of the spectrum. So, researchers report developing a new kind of smoke that obscures both visible and IR detection.
Interactive virtual reality enhances physicians' treatment planning of complex conditions
Sun, 18 Mar 2018 14:48:42 EDT
Interactive virtual reality (VR) brings medical images to life on screen, showing interventional radiologists a patient's unique internal anatomy to help physicians effectively prepare and tailor their approach to complex treatments, such as splenic artery aneurysm repair, according to new research.
Raising transparency in the online advertising ecosystem
Fri, 16 Mar 2018 19:25:09 EDT
The online advertising business, led by companies like Google or Facebook, generated over $200 billion revenue in 2017, with an year-over-year growth over 15 percent. This online advertising explosion is raising serious data privacy concerns.
Chirping is welcome in birds but not in fusion devices
Fri, 16 Mar 2018 15:39:06 EDT
Birds do it and so do doughnut-shaped fusion facilities called 'tokamaks.' But tokamak chirping -- a rapidly changing frequency wave that can be far above what the human ear can detect -- is hardly welcome to researchers who seek to bring the fusion that powers the sun and stars to Earth.
Piezomagnetic material changes magnetic properties when stretched
Fri, 16 Mar 2018 15:39:02 EDT
Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used: lighters that spark when you press a switch, microphones, sensors, motors and all kinds of other devices. Now a group of physicists has found a material with a similar property, but for magnetism. This 'piezomagnetic' material changes its magnetic properties when put under mechanical strain.
3-D tissue model of developing heart could help drug safety testing for pregnant women
Fri, 16 Mar 2018 15:38:40 EDT
An engineering team has developed a process that combines biomaterials-based cell patterning and stem cell technology to make a 3-D tissue model that could mimic early stage human heart development. Embryotoxicity is just one potential use of the modeling platform.
Scientists mimic neural tissue in new research
Fri, 16 Mar 2018 12:12:04 EDT
Researchers have discovered a process for engineering next-generation soft materials with embedded chemical networks that mimic the behavior of neural tissue. The breakthrough material may lead to autonomous soft robotics, dual sensors and actuators for soft exoskeletons, or artificial skins.
Plasmons triggered in nanotube quantum wells
Fri, 16 Mar 2018 12:11:58 EDT
A novel quantum effect observed in a carbon nanotube film could lead to the development of near-infrared lasers and other optoelectronic devices, according to scientists.
Two better than one: Chemists advance sustainable battery technology
Fri, 16 Mar 2018 11:14:18 EDT
Chemists describe design and synthesis of a pi-conjugation-extended viologen molecule as a novel, two-electron storage anolyte for neutral total organic aqueous redox flow batteries.
Smart software can diagnose prostate cancer as well as a pathologist
Fri, 16 Mar 2018 10:06:41 EDT
Chinese scientists and clinicians have developed a learning artificial intelligence system which can diagnose and identify cancerous prostate samples as accurately as any pathologist. This holds out the possibility of streamlining and eliminating variation in the process of cancer diagnosis. It may also help overcome any local shortage of trained pathologists. In the longer term it may lead to automated or partially automated prostate cancer diagnosis.
Monocrystalline silicon thin film for cost-cutting solar cells with 10-times faster growth rate fabricated
Fri, 16 Mar 2018 10:06:24 EDT
Researchers have successfully produced high-quality thin film monocrystalline silicon with a reduced crystal defect density down to the silicon wafer level at a growth rate that is more than 10 times higher than before. In principle, this method can improve the raw material yield to nearly 100%.
Mobile application detecting atrial fibrillation reduces the risk of stroke
Fri, 16 Mar 2018 10:06:09 EDT
A new application developed in Finland can detect atrial fibrillation that causes strokes. Atrial fibrillation can be detected with the mobile phone application without any extra equipment. The mobile application can save lives all over the world as timely diagnosis of atrial fibrillation is crucial for effective stroke prevention.
Democratizing single-cell analysis
Thu, 15 Mar 2018 14:12:10 EDT
Scientists have developed a new low-cost technique for profiling gene expression in hundreds of thousands of cells.
Researchers create a protein 'mat' that can soak up pollution
Thu, 15 Mar 2018 14:07:35 EDT
In a breakthrough that could lead to a new class of materials with functions found only in living systems, scientists have figured out a way to keep certain proteins active outside of the cell. The researchers used this technology to create mats that can soak up and trap chemical pollution.
Topsy-turvy currents key to removing nitrate from streams
Thu, 15 Mar 2018 14:07:30 EDT
More than 500 years ago, Leonardo da Vinci sketched what he called 'la turbolenza,' comparing chaotic swirls atop flowing water to curly human hair. It turns out those patterns influence myriad phenomena, from the drag on an airplane's wings and the formation of Jupiter's red spot to the rustling of tree leaves.
Compact fiber optic sensor offers sensitive analysis in narrow spaces
Thu, 15 Mar 2018 14:07:00 EDT
Researchers have developed a new flexible sensor with high sensitivity that is designed to perform variety of chemical and biological analyses in very small spaces.
The view from inside supersonic combustion
Thu, 15 Mar 2018 13:07:07 EDT
In supersonic engines, achieving the right flow speed, producing the right ratio of evaporated fuel and causing ignition at the right time is complex. Vortices are affected by the shock wave, and this changes the way the fuel combusts and multiplies the number of possibilities of how particles can behave. To deepen our understanding, researchers use numerical modeling to calculate the huge variety of possible outcomes.
A new use for graphene: Making better hair dyes
Thu, 15 Mar 2018 12:29:48 EDT
Graphene, a naturally black material, could provide a new strategy for dyeing dark hair that will make it less prone to staticky flyaways. Researchers have put it to the test. They used sheets of graphene to make a dye that adheres to the surface of hair, forming a coating that is resistant to 30 washes without the need for chemicals that damage the hair cuticle.
New research on the strength of children's bones could help in the design of safer car seats
Thu, 15 Mar 2018 12:29:22 EDT
Researchers have successfully used computer simulated models and medical imaging to test the strength of young children's bones, producing results which could help car seat manufacturers design safer car seats for young children.