Easy-to-use technique to measure the hydrophobicity of micro- and nanoparticle
The technique may have a far-reaching implication for many scientific and industrial applications and disciplines that involve particulate matter.
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3D printed chocolate without temperature control
A new approach to the 3D printing of chocolate using cold extrusion instead of conventional hot-melt extrusion method eliminates the need for stringent temperature controls, offering wider potential for 3D printing temperature-sensitive food.
Read moreBreaking water molecules apart to generate clean fuel: Investigating a promising material
Scientists investigated a material that uses sunlight for splitting water molecules (H2O) to obtain dihydrogen (H2). Since dihydrogen can be used as clean fuel, this study provides relevant insight for researchers dealing with clean energy generation.
Read moreTiny particles lead to brighter clouds in the tropics
When clouds loft tropical air masses higher in the atmosphere, that air can carry up gases that form into tiny particles, starting a process that may end up brightening lower-level clouds, according to a new study. Clouds alter Earth's radiative balance, and ultimately climate, depending on how bright they are. The new paper describes a process that may occur over 40% of the Earth's surface.
Read moreWhat gives a 3-meter-long Amazonian fish some of the toughest scales on Earth
Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. It's evolved armor-like scales that deform, but don't tear or crack, when a piranha — which has one of the animal kingdom's most powerful bites — attacks. Researchers describe the unique properties of the Amazonian Arapaima skin and its potential for human-made materials.
Read moreExperiment measures velocity in 3D
Many of today's scientific processes are simulated using computer-driven mathematical models. But for a model to accurately predict how air flow behaves at high speeds, for example, scientists need supplemental real life data. Providing validation data, using up-to-date methods, was a key motivating factor for a recent experimental study.
Read moreCreating miracles with polymeric fibers
Scientists are studying the fabrication of polymeric nanofibers and microfibers — very thin fibers made up of polymers. The fibers can be woven into textile-like structures but depending on the use, different fiber thicknesses may be necessary. To study the effects of various parameters on fiber fabrication, the researchers compared the characteristics of fibers created in different ways.
Read moreChains of atoms move at lightning speed inside metals
A phenomenon that has previously been seen when researchers simulate the properties of planet cores at extreme pressures has now also been observed in pure titanium at atmospheric pressure. Chains of atoms dash around at lightning speeds inside the solid material.
Read morePhysicists shed new light on how liquids behave with other materials
Using a range of theoretical and simulation approaches, physicists have shown that liquids in contact with substrates can exhibit a finite number of classes of behavior and identify the important new ones.
Read moreOscillation assisted 3D printing renders ultrafast fabrication of microlens array
An oscillation assisted digital light processing (DLP) based 3D printing approach is developed to enable ultrafast fabrication of microlens arrays with optically smooth surface (1 nm surface roughness) via a single 1-3 seconds exposure of grayscale UV light.
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