Sunday, September 10, 2017

Nanotubes laid out in stripes

New technologies can be realized with thin layers of carbon nanotubes. Now, researchers have examined a technique that creates such layers, gaining fresh insights.

Cellulose fibers stronger than steel

A novel procedure spins extremely tough filaments from tiny cellulose fibrils by aligning them all in parallel during the production process.

Nanotechnology takes on diabetes

A sensor which can be used to screen for diabetes in resource-poor settings has been developed by researchers and tested in diabetic patients, and will soon be field tested in sub-Saharan Africa.

Efficient thermal cooling and heating with MOF coatings

Thermal systems use heat to produce cold, and vice versa. To do so, a material is needed that can dissipate water vapor particularly well and quickly. A new method simply applies this property as a layer onto the components.

Breakthrough in energy storage: Electrical cables that can store energy

New nanotechnology may provide power storage in electric cables, clothes.

Nanotechnology-platform ready: Scientists use DNA origami to create 2D structures

Scientists have developed a method using DNA origami to turn one-dimensional nano materials into two dimensions. Their breakthrough offers the potential to enhance fiber optics and electronic devices by reducing their size and increasing their speed.

Scientists demonstrate rare chemical phenomenon to harvest solar energy

Landmark study opens doors to further studies into chemical modification of materials for alternative energy conversion.

Nanotechnology world: Where towers construct themselves

How physicists get control on the self-assembly process.

Super waterproof surfaces cause water to bounce like a ball (w/video)

Research on super-hydrophobic surfaces could result in cleaner, more efficient power.

The conventional electronic model for metals is not valid for bismuth

Time and again, even simple materials take physicists by surprise. Researchers now have observed an electronic property in the metal bismuth which they expected only in significantly more complex materials.

Physicists take quantum leap toward ultra-precise measurement

Physicists have overcome a major challenge in the science of measurement using quantum mechanics. The scientists developed a way to employ multiple detectors in order to measure photons in entangled states, with an experimental apparatus that uses a fiber ribbon to collect photons and send them to an array of 11 detectors. Their work paves the way for great advances in using quantum states to develop ultra-precise measurement technologies.

MagnetoSperm- a sperm-inspired micro-robot for nanomedicine

Sperm-inspired robots controlled by magnetic fields may be useful for drug delivery, IVF, cell sorting and other applications at the microscopic level.

Researchers predict the electrical response of metals to extreme pressures

New research makes it possible to predict how subjecting metals to severe pressure can lower their electrical resistance, a finding that could have applications in computer chips and other materials that could benefit from specific electrical resistance.

New nanofiltration technology successfully removes heavy metals in water

Technology capable of removing such contaminants at low cost and with an efficiency that surpasses existing technologies.

New nanomedicine to bring relief to glaucoma patients

Scientists have developed a new nanomedicine that will allow glaucoma patients to do away with daily eye drops.

Scientists find stronger 3-D material that behaves like graphene

Researchers say cadmium arsenide could yield practical devices with the same extraordinary electronic properties as 2-D graphene.

Just add water: 3-D silicon shapes fold themselves when wetted by microscopic droplets

Tiny self-assembling tools could one day deliver drugs to targeted areas of the body or even perform autonomous microsurgery.

Prototype of new transistor for lower power consumption

By enveloping a transistor with a shell of piezoelectric material, which distorts when voltage is applied, researchers were able to reduce this leakage by a factor of five (compared to a transistor without this material).

Nanoporous material leads to carbon-capture breakthrough (w/video)

Scientists invent a porous material to capture carbon dioxide at natural gas wellheads. The recyclable material absorbs 82 percent of its weight in carbon dioxide and releases it as gas when the wellhead pressure is relieved.

Speeding food safety tests to deliver fresher products

A research team led by food scientist Sam Nugen at UMass Amherst received a $495,950 grant to improve food safety by developing faster methods for detecting and separating microbial contamination out of food.

Detecting glucose levels in saliva with nanoscale interferometers

Researchers have developed a new biochip sensor that can selectively measure concentrations of glucose in a complex solution similar to human saliva. The advance is an important step toward a device that would enable people with diabetes to test their glucose levels without drawing blood.

2D transistors promise a faster electronics future

Faster electronic device architectures are in the offing with the unveiling of the world's first fully two-dimensional field-effect transistor (FET). Unlike conventional FETs made from silicon, these 2D FETs suffer no performance drop-off under high voltages and provide high electron mobility, even when scaled to a monolayer in thickness.

Plasmonic nanoantennas - Hot spots for molecules

The accurate placement of molecules into gaps between gold nanoantennas enables ultrahigh-sensitivity molecular detection.

A 'click' toward localized chemotherapy

'Click' chemistry produces a hydrogel with less toxicity and greater tissue localization in a mouse cancer model.

From thin silicate films to the atomic structure of glass

Structure of amorphous materials clarified. This project has so far been a big challenge due to the complexity of this material class. Modern preparation methods in combination with scanning tunneling microscopy succeed in decrypting the everyday material glass.

Researchers confirm 60-year-old prediction of atomic behavior

Discovery opens new experimental path to superfast quantum computing.

Laserpulse erzeugen Nano-Antennen

Nur zwei kurze Laserblitze benötigt man an der TU Wien um an einer Aluminium-Oberfläche Nano-Strukturen zu erzeugen, die den photoelektrischen Effekt des Materials drastisch verstärken.

Shaken, not stirred: Control over complex systems consisting of many quantum particles

A new method was developed to utilize quantum mechanical vibrations for high precision measurements. The well-known concept of the Ramsey interferometer is applied to a complex multi particle system consisting of hundreds of atoms.

No, metal oxide nanoparticles in your food won't kill you

Recently the American publication Mother Jones published an article on the dangers of food laced with tiny metal oxide particles. The article, however, is laced with errors and misinformation.

Chinese Academy of Sciences and Nature to launch new nanotechnology journal

The Institute of Electronics of the Chinese Academy of Sciences (IECAS) and Nature Publishing Group (NPG) will co-publishing a new journal in the fields of microsystems and nanoengineering called Microsystems and Nanoengineering.