Monday, August 31, 2020

Measuring adhesion and friction of polymer nanofibers

This new knowledge can inform the design and manufacturing of products made up of random networks of filaments, such as robust filters designed to block foreign particles from entering our lungs.

Researchers develop molecule to store solar energy

Scientists have developed a molecule that absorbs energy from sunlight and stores it in chemical bonds. A possible long-term use of the molecule is to capture solar energy efficiently and store it for later consumption.

Metasurface materials put true holographic movie within grasp (w/video)

Researchers produce dynamic holographic projection using metasurface material.

Nanomaterials based strategies for treatment of hypoxic tumor

A recent review article presents the latest advances on nanomaterials for the treatment of hypoxic tumors.

New nanomaterial-based batteries are lighter, faster-charging

Using batteries made of silicon and other nanomaterials not only increases capacity, it also allows for charging batteries at a higher current, which translates to faster charging times.

A new nanoemulsion platform for controlled delivery of key nanoscale drugs and more

The novel approach, developed by chemical engineers, could help create more efficient consumer products, including drugs, cosmetics, and food.

Flexible micro LEDs may reshape future of wearable technology

Researchers have developed a method to create micro LEDs that can be folded, twisted, cut and stuck to different surfaces.

3D Laser printing in color: Plasmonic seasoning with nanosilver

Giving color to desktop laser 3D printed polymers by highly dispersed nanoparticles.

Scientists reveal secret of material for promising infrared cameras

Researchers have discovered what makes vanadium dioxide films conduct electricity. Their findings will enable thermal imaging devices with a sensitivity and reaction rate superior to those of the currently existing analogues.

Sunday, August 30, 2020

Magnetic vortices, bits of the future

For the first time, researchers successfully manipulated and controlled minute magnetic structures called skyrmions in ways that suggest they could be useful in electronic applications.

Friday, August 28, 2020

Chelation - a new bonding mode for stable perovskite surface

Researchers report a chelation strategy for surface engineering of halide perovskite, in which dithiocarbamate molecules can be coordinate to surface Pb sites via strong bidentate chelating bonding.

Round nanoparticles improve quality factors of surface lattice resonances

Researchers have found that nanohemisphere arrays can significantly improve the quality factors of plasmonic surface lattice resonances.

Optical imaging enters sub-nanometer era

Scientists have realized sub-molecular resolution with single molecule photofluorescence imaging for the first time.

Structural colors from cellulose-based polymers

Self-assembly of responsive photonic biobased materials in liquid marbles.

Cosmic rays may soon stymie quantum computing

Building quantum computers underground or designing radiation-proof qubits may be needed, researchers find.

An improved wearable, stretchable gas sensor using nanocomposites

Researchers have developed a stretchable, wearable gas sensor for environmental sensing.

Thursday, August 27, 2020

Brain-inspired electronic system could vastly reduce AI's carbon footprint

Extremely energy-efficient artificial intelligence is now closer to reality after researchers found a way to improve the accuracy of a brain-inspired computing system.

Photonics researchers report breakthrough in miniaturizing light-based chips

Using a material widely adopted by photonics researchers, researchers have created the smallest electro-optical modulator yet. The modulator is a key component of a photonics-based chip, controlling how light moves through its circuits.

Tying knots with individual molecules

Chemists have successfully tied a series of microscopic knots using individual molecules for the first time, ushering in the advent of a form of nano-scale weaving which could create a new generation of advanced materials.

Music goes terahertz: Scientists achieve breakthrough for pulsed terahertz lasers

By mixing electronic resonances in semiconductor nanostructures with the photon field of microresonators, researchers designed a stained mirror that bleaches more easily than ever and could make terahertz lasers ultrafast.

Molecular architecture: New class of materials for tomorrow's energy storage

The materials belong to the class of metal-organic frameworks, or MOFs for short, and could open up new opportunities for energy storage.

Mini power plants from coated blue-green algae

Scientists have equipped these humble unicellular organisms with semiconductor coatings to create mini power plants, which supply biofuels and are photocatalytically active in sunlight.

Wednesday, August 26, 2020

Engineers use heat-free technology to make metallic replicas of a rose's surface texture

The BIOMAP process uses microparticles of varying sizes. The particles are applied to a surface, covering it and form-fitting all the crevices, gaps and patterns through the autonomous processes of self-filtration, capillary pressure and evaporation.

Fabrication of a single-crystal giant magnetoresistive device on a polycrystalline film

Technique may promote practical use of high-performance magnetoresistive devices comprising half-metallic heusler alloys.

Nanodots made of photovoltaic material support waveguide modes

New spectroscopic technique for studying nanostructures demonstrates that stibnite nanodots can act as high-optical-quality waveguides and are promising candidates as photoswitchable materials for future applications.

Hip fracture risk linked to nanoscale bone inflexibility

The study found that flexibility, as well as density, in the bone nanostructure is an important factor in assessing how likely someone is to suffer fractures.

New graphene device can measure toxic lead within minutes

Researchers create portable lab-on-a-chip that could detect many contaminants.

Unconventional gold nano-crystals reveal their inner structure

Gold nanoparticles can be better catalysts if their atoms are packed differently from the conventional arrangement. This alternate inner structure leads to different inherent properties.

Nanoparticles of the future

Researchers have developed the world's first afterglow-magnetic nanoparticles. The patented invention is designed for various applications including cancer detection in medicine and the detection of fine particulates in living organisms.

Tuesday, August 25, 2020

New technology extracts potential to identify quality graphene cheaper and faster

Researchers have created a machine-learning algorithm that can characterise graphene properties and quality within 14 minutes.

Faster, more efficient energy storage could stem from holistic study of MXenes

Researchers developed a novel, integrated approach to track energy-transporting ions within an ultra-thin material, which could unlock its energy storage potential leading toward faster charging, longer-lasting devices.

New method to track ultrafast change of magnetic state

Scientists have developed a precise method to measure the ultrafast change of a magnetic state in materials. They do this by observing the emission of terahertz radiation that necessarily accompanies such a magnetization change.

Using light's properties to indirectly see inside a cell membrane

New imaging technique helps resolve nanodomains, chemical composition in cell membranes.

Payper: A new graphene-based contactless payment system

The role of graphene in the system's printed electronic antenna is to provide high flexibility, conductivity and mechanical strength, which can be imparted onto the tight and variable curvature of the till roll.

Physicists discover new two-dimensional ferroelectric material just two atoms thick

The new material, a tin selenide monolayer, is only the third two-dimensional ferroelectric belonging to the chemical family of group-IV monochalcogenides that has been experimentally grown thus far.

Nanoelectromechanical sensors based on suspended 2D materials

Scientists have published a review article on nanoelectromechanical (NEMS) sensors based on suspended two-dimensional (2D) materials.

Monday, August 24, 2020

Nanoengineered pot of gold engineered to help with early disease detection

Researchers have developed biosensors that use nanoengineered porous gold, which more effectively detect early signs of disease, potentially improving patient outcomes.

Transparent near-infrared perovskite light-emitting diodes

Researchers have developed transparent near-infrared light-emitting diodes (LEDs) that could be integrated into the displays of smart-watches, smart-phones and augmented or virtual reality devices.

Scientists get atomistic picture of platinum catalyst degradation

Scientists have come up with an atomistic picture to explain why and how platinum catalysts degrade.

Researchers develop flat lens a thousand times thinner than a human hair

The lens can be used to produce high-resolution images with a wide field of view. It can serve as a camera lens in smartphones and can be used in other devices that depend on sensors (high resolution wide angle selfie obtained using metalens.

Machine learning peeks into nano-aquariums

In the nanoworld, tiny particles such as proteins appear to dance as they transform and assemble to perform various tasks while suspended in a liquid. Recently developed methods have made it possible to watch and record these otherwise-elusive tiny motions, and researchers now take a step forward by developing a machine learning workflow to streamline the process.

Researchers develop ultra-long circulating nanoparticle to treat chronic myeloid leukemia

By conjugating CHMFL-ABL-053 to an amphiphilic polymer and self-assembling into a nanoparticle with a high loading, researchers have developed an ultra-long circulating nanomaterial.

Engineered nanomaterials improve salt tolerance in plants

Researchers showed the promoting effects of single-walled carbon nanohorns and ZnO nanoparticles on plant growth and salt tolerance in Sophora alopecuroides seedlings.

The state-of-the-art of perovskite tandem solar cells

A new review summarizes the development of the state-of-the-art perovskite tandem solar cells.

Saturday, August 22, 2020

Surface deep: Light-responsive nanoscale top layer of plastic film induces movement

Scientists show that azobenzene-containing film, important for many industries, does not need to be made entirely of light-sensitive material to function.

Friday, August 21, 2020

Nanomaterials show promise for treating hemophilia and cardiovascular disorder

Scientists report that the lipid-based nanoparticles they engineered, carrying two sets of protein-making instructions, showed in animal studies that they have the potential to function as therapies for two genetic disorders.

A four-state magnetic tunnel junction for novel spintronics applications

A novel magnetic tunnel junction which has four resistance states, instead of two states in existing magnetic tunnel junctions, may pave the way to novel spintronics devices, including multi-level magnetic memory.

Scientists reveal trap-enabled long-distance carrier transport in perovskite quantum wells

Researchers reported trap mediated long-distance carrier transport beyond the limit of exciton in single-crystals. The carrier diffusion distance could be as long as 2 to 5 microns, which was on the same order of 3D perovskites and other traditional semiconductor quantum well materials.

Thursday, August 20, 2020

Two-dimensional electronics get an atomic tune-up

Researchers have demonstrated a new technique that could engineer the band gap needed to improve the performance of semiconductors for next-generation electronics such as optoelectronics, thermoelectrics, and sensors.

A quantum thermometer to measure the coldest temperatures in the universe

Physicists have proposed a thermometer based on quantum entanglement that can accurately measure temperatures a billion times colder than those in outer space.