Despite a winter that seems to have pushed spring out of the way to make room for an early summer, the usual stuff you do during spring still need to be done.
Whether they’re trying to hide some gray or embrace a new or quirky color, people adore hair dyes. But some of these dyes may be harmful to humans and the environment. Now in a study appearing in ACS’ Journal of Agricultural and Food Chemistry, scientists report that they have developed a natural, non-toxic hair dye derived from blackcurrant skins that is as durable as conventional dyes and capable of sustaining hair color through multiple washings.
Paintings by Vincent van Gogh, Pablo Picasso and Johannes Vermeer have been delighting art lovers for years. But it turns out that these works of art might be their own worst enemy — the canvases they were painted on can deteriorate over time. In an effort to combat this aging process, one group is reporting in ACS Applied Nano Materials that nanomaterials can provide multiple layers of reinforcement.
WASHINGTON—Chameleons are nature’s most talented masters of color. They use their unique color-changing abilities for all sorts of reasons. But how do they alter their hue? They wield a combination of pigments and specialized nano-scale crystals. In this video, Reactions explains how chameleons have mastered nanotech:
When it comes to materials, there is no question as to who wins the strongman competition. Spider silk is known as being the strongest fabric, and steel, ceramics and glass fibers are the best building materials. But now, researchers are reporting in ACS Nano that specially arranged nano-sized cellulose fibers are the strongest material of them all, in a move that might cause some to re-name Superman the “man of cellulose.”
Everyone knows (or ought to): Everything is getting better all the time. That’s certainly true in spring or early summer, when nature re-awakens after a long and cold winter but, just perhaps, not all the time.
And that’s why cunning politicians like to make big promises and have elections at those times. That’s just one example of the placebo effect, the proclamation that “your vote counts.”
Rubber duckies could soon be at the forefront of an electronic revolution. In ACS Sustainable Chemistry & Engineering, scientists report they have used specialized nanogenerators that gather energy from mechanical vibrations to transform squeaky bathtub companions and other conventional children’s toys into ‘smart’ electronics. They say the finding could have broad commercial applications, leading to the development of battery-free, self-powered toys, medical sensors and other devices. Watch a video of prototype toys here.
Are you ready to get your new (electric) flying machine? Perhaps you already know, it’s supposed to be coming to a store near you, soon:
Airbus is already working on several electric aircraft programs, including an autonomous electric VTOL aircraft, but now they are partnering with Audi and Italdesign to combine that with electric cars.
Robots that can build homes, marathoners’ running shoes and NASA’s upcoming spacecraft all have one thing in common: 3-D printed parts. But as enthusiasm for 3-D printing continues to grow and expand across markets, the objects printed by the process can have weaknesses.
The AstroRad radiation protection vest designed by Tel Aviv-based StemRad will be worn by a mannequin on NASA’s test flight of its unmanned Orion spacecraft, according to an agreement signed by NASA Acting Administrator Robert Lightfoot and Israel Space Agency Director Avi Blasberger during the 34th Space Symposium in Colorado last month.
Cheap, flexible and sustainable plastic semiconductors will soon be a reality thanks to a breakthrough by chemists at the University of Waterloo.
Professor Derek Schipper and his team at Waterloo have developed a way to make conjugated polymers, plastics that conduct electricity like metals, using a simple dehydration reaction the only byproduct of which is water.
From cell phones and laptops to electric vehicles, lithium-ion batteries are the power source that fuels everyday life. But in recent years, they have also drawn attention for catching fire. In an effort to develop a safer battery, scientists report in the ACS journal Nano Letters that the addition of nanowires can not only enhance the battery’s fire-resistant capabilities, but also its other properties.
The first step after buildings collapse from an earthquake, bombing or other disaster is to rescue people who could be trapped in the rubble. But finding entrapped humans among the ruins can be challenging. Scientists now report in the ACS journal Analytical Chemistry the development of an inexpensive, selective sensor that is light and portable enough for first responders to hold in their hands or for drones to carry on a search for survivors.
From astronomers to futuristic dreamers, the inter-stellar space is the real frontier—for many centuries already.
Anyone who’s looking at the firmament on a clear summer night is likely to agree. There is a “world” of stars, planets, moons, galaxies, and a host of other—mostly unfathomable—objects out there. One can’t deny that.
“Dead men tell no tales” is a common saying, but according to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, the old proteins on historical artifacts, such as manuscripts and clothing, can tell quite a yarn.
During rare desert rainfalls, cacti waste no time sopping up and storing a storm’s precious precipitation. Inspired by this natural phenomenon, scientists report in a study appearing ACS Macro Letters that they have developed a material that mimics cactus roots’ ability to rapidly absorb and retain vast amounts of water with a minimal amount of evaporation. They say this unique material could lead to new and improved cosmetics, medical devices and other everyday products.
Electronic waste — including discarded televisions, computers and mobile phones — is one of the fastest-growing waste categories worldwide. For years, recyclers have gleaned usable parts, including metals, from this waste stream.
Bizarre phenomenon is explained with help from the Bureau of Alcohol, Tobacco, Firearms and Explosives
Within the past decade, many advancements have been made in the 3-D market from printing to movies. Now scientists report in ACS’ Analytical Chemistry that by combining a robotic arm and mass spectrometry, they can analyze the surface of irregularly shaped 3-D objects, potentially opening up new branches of forensics and pharmaceutics.