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Materials news, March 2019

A new dual-polymer hydrogel able to respond dynamically to its environment could find use in a variety of ‘soft robotic’ and biomedical applications.

Researchers have used machine learning to create molecular models for faster screening of materials such as organic electronics.

Researchers have found a layered material made from sodium, tin and arsenic that can act as both an electron-holder and a hole-holder.

Researchers have found that thin layers of niobium arsenide, a Weyl semimetal, have three times the conductivity of copper at room temperature.

Researchers have found that phase-switching liquids can delay ice and frost formation up to 300 times longer than state-of-the-art anti-ice coatings.

Yeast makes green nanofibers from paper paste

‘living glue’ inspired by marine organisms like barnacles and mussels works underwater or in highly damp or humid conditions

By exciting ‘frustrated’ crystalline materials with laser light, a team of researchers has managed to transform them into a stable ‘supercrystal’.

A new microfluidic system for synthesizing perovskite quantum dots reduces manufacturing costs and can be tuned on demand to any color.

Sensitive, see-through electronic skin for underwater touch screen

Researchers have discovered the strongest topological conductor yet, in the form of thin crystal samples with a spiral-staircase structure.

fast-screening of potential non-noble metal two-dimensional catalysts for hydrogen evolution reaction

Scientists have identified the causes of degradation in a nickel-rich layered cathode material in lithium-ion batteries, as well as possible remedies.

Scientists have discovered the islands that form a new layer in a crystalline material tend to form in a pattern similar to the preceding layer.

Hydrogen from seawater without decay or delay

A metal-organic framework proved better at soaking up the pollutant PFOS from contaminated water when it contained additional nanometer-sized holes.

A novel type of polymer can alter its thermal conductivity by switching between a crystalline state and a liquid state in response to light.

Strength of metallic alloys that improves at cryogenic temperatures

A polymer composite containing graphene and nanoparticles can produce a more stable solid-electrolyte interphase in lithium metal batteries.

Sandwiching a layer of graphene between two layers of 2D boron nitride can produce superlattices that confer novel electrical properties.

Scientists have used a new technique called ultrafast surface X-ray scattering to visualize the motion of atoms in a 2D material.

underbelly of lobsters could hold clue to developing a tough, strong and flexible material for body armor and other applications

Acoustic metamaterial structure blocks 94% of sound

Researchers have discovered that a high-strength polymer called PBDT has a rare double-helix structure.

Simulations of how surface roughness changes over time have revealed that surfaces are worn down by the action of debris particles between them.

By combining graphene with nano-ribbons of gold, researchers have developed an ultrasensitive biosensor for detecting disease-causing proteins.

Silencing MRI machines, jet airplanes and loudspeakers

The twist angle between layers of 2D semiconductors provides a ‘tuning knob’ to turn them into an exotic quantum material.

Physicists have discovered that placing 2D semiconductors on top of each other and twisting them causes the emergence of novel hybrid properties.

A new nanocrystalline tungsten-tantalum-vanadium-chromium alloy can withstand unprecedented amounts of radiation without fracturing.

By combining supercomputing with experimental methods, researchers have been able to identify promising materials for dye-sensitized solar cells

Researchers used machine learning to simulate the quantum mechanics analysis of two capacitor materials, greatly speeding up the process.

Novel simulations show that atom-sized steps on a substrate have the remarkable ability to keep monolayer crystal islands in alignment as they grow.

The energy storage capacity of electrodes made from the 2D material MXene can be doubled by adding an appropriate solvent to the electrolyte.

Scientists have used directed evolution to enhance the optical properties of complexes of DNA wrapped around carbon nanotubes.

Researchers have shown that excitons can be trapped in the moiré pattern created by twisting a pair of 2D semiconductors.

Researchers have developed a blueprint for understanding and predicting the properties and behavior of nanoparticles containing multiple elements.

Researchers have developed a novel fiber comprising a gallium metal core surrounded by an elastic polymer sheath that is both strong and tough.

Study of the effect of cutting process on the microstructure of different SiC-based constituents found in SiC/SiC ceramic matrix composites.

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