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Materials news, April 2022

Designing biomolecules for adaptive properties

Spontaneous emergence of complex patterns in mixtures of biomolecules

Color-changing chameleon inspires printed photonics

colloidal photonic crystal ink enables printing of 2D and 3D colored structures using additive manufacturing techniques

natural fiber-reinforced shape memory polymer morphs into different shapes in response to humidity

By adding ferrocene molecules into perovskite solar cells, researchers have been able to vastly improve the cells’ efficiency and stability.

Using novel nanocapsules, researchers have developed a 3D printing process that makes it possible to print an object within a volume of resin.

Researchers have discovered that laser light can trigger a type of magnetism in the superlattice formed by two nonmagnetic 2D materials.

Scientists have grown thin films of two different crystalline materials on top of each other using an innovative technique called ‘dative epitaxy’.

Using standard rheology tests, researchers have investigated why the cream in an Oreo cookie sticks to just one wafer when it is twisted apart.

Using imaging and modelling, researchers have investigated how the various particles in a battery cathode interact with lithium during use.

A machine-learning system that utilizes experience could speed up the development of optimized production methods for perovskite solar cells.

Utlizing molecular-beam epitaxy, researchers have developed a novel process for growing single layers of hexagonal boron nitride on graphene.

Researchers have developed a thermophotovoltaic cell that can convert heat directly to electricity with an efficiency of around 40%.

By coating nanomaterials with inorganic compounds, researchers have been able to use X-ray tomography to see inside them in unprecedented detail.

Improved 3D printing by reducing harmful heat build-up

Using a 3D printing method, researchers have produced micro-scaffolds that can house a high-density of cells for growing tissue in desired shapes.

Atomic vibrations known as phonons can function as a knob to tune the magnetic bonding between the atomic layers in manganese bismuth telluride.

A new low-temperature annealing method can produce an alloy of gold and silver that is able to reflect every color in the spectrum.

Researchers have developed a tunable graphene-based platform that can control the interaction between light and matter in the terahertz spectrum.

Using a superlattice of hafnium oxide and zirconium oxide as a gate oxide, researchers have created transistors that consume much less energy.

By growing polymer chains on membranes, researchers have greatly enhanced their efficiency at removing carbon dioxide from mixed gases.

Using stacked layers of a novel semiconducting material, researchers have managed to produce a highly efficient deep-ultraviolet laser.

Researchers have discovered that heating plastic waste in the presence of potassium acetate produces particles that can absorb carbon dioxide.

With a molten salt electrolyte, a novel freeze-thaw battery could store the energy generated by renewable sources such as wind and solar for months.

Researchers have developed long-lasting, gel-based coatings that can prevent adhesion of everything from ice to bacteria on functional surfaces.

Researchers have developed a novel way to produce doped graphene by modifying their flash Joule heating process.

Chemists have deveoped a novel catalytic process for upcycling the common plastic polystyrene into the useful chemical benzoic acid.

By directly measuring force, stress and pressure, researchers have revealed why liquid droplets are able to erode hard surfaces.

Researchers have discovered that built-in thermal ‘shock absorbers’ allow semiconducting perovskites to exhibit superfluorescence at room temperature.

A new additive material comprised of tantalum-titanium oxide nanoparticles can soak up corrosive free radicals in fuel cells.

Novel water-stable, 2D covalent organic framework nanoparticles can direct the differentiation of human stem cells into bone cells.

By utilizing a honeycomb layer to capture sunlight, researchers have increased the levels of energy absorbed by wafer-thin photovoltaic panels by 25%.

Researchers have directly measured how individual electronic quantum states evolve in a kagome magnet in response to an external magnetic field.

Researchers have developed a piezoelectric polymer that can generate electricity much more efficiently than previous versions.

Researchers have developed a nitrogen-doped carbon-coated nickel catalyst that can replace expensive platinum as the anode in fuel cells.

A flexible display that utilizes stretchy light-emitting polymers is brighter than a cellphone and can be stretched up to twice its original length.

Researchers have shown that wrapping supercapacitor yarns with insulating threads can hep prevent short-circuits.

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