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‘Greener’ ways to color clothes

'Greener' ways to color clothes
When buying a new outfit, most people don’t consider the process that went into tinting that vivid red shirt or colorfully patterned dress. But dyeing clothes requires massive amounts of water, energy and chemicals. So companies are working on new ways to color textiles that are both environmentally friendly and cost-effective, reports an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society.

By American Chemical Society - Thursday, July 19, 2018 - Full Story

The ultimate ‘smell test’: Device sends rotten food warning to smartphones

The ultimate 'smell test': Device sends rotten food warning to smartphones
When it comes to the “smell test,” the nose isn’t always the best judge of food quality. Now in a study appearing in ACS’ journal Nano Letters, scientists report that they have developed a wireless tagging device that can send signals to smartphones warning consumers and food distributors when meat and other perishables have spoiled. They say this new sensor could improve the detection of rotten food so it is tossed before consumers eat it.

By American Chemical Society - Saturday, July 14, 2018 - Full Story

Building a chemical weapons detector with Legos®

Building a chemical weapons detector with Legos®
Nerve agents are scary stuff. They are among the most deadly substances on earth, yet can be odorless, tasteless and difficult to detect. But researchers now report in ACS Central Science that they have adapted building materials normally associated with children’s toys and a cell phone to help sense these compounds.

By American Chemical Society - Friday, July 13, 2018 - Full Story

Hydrangeas and the Science of Do-Overs

Hydrangeas and the Science of Do-Overs

WASHINGTON —In a previous video, the Reactions team attempted to demonstrate the color-changing science of hydrangeas by using aluminum citrate to try to turn cut flowers from red to blue. The experiment didn’t work, but it did demonstrate why failing and trying again is so important in science. In this video, the team finally sticks the landing:

By American Chemical Society - Thursday, July 5, 2018 - Full Story

Rescuers turn to Israeli tech to help save trapped Thai boys

Rescuers turn to Israeli tech to help save trapped Thai boys
Emergency mobile communications technology developed by Israeli company Maxtech Networks is being used by rescue teams working to save 12 teenagers and their 25-year-old coach who have been trapped for 11 days in a flooded cave in Thailand.

By ISRAEL21c - Wednesday, July 4, 2018 - Full Story

The smart oven that cooks your meal in 3 minutes

The smart oven that cooks your meal in 3 minutesFirst came frozen TV dinners and ready-to-microwave meals. Now there’s Genie, an Israeli high-tech startup offering a countertop “smart oven” claiming to cook restaurant-quality meals and snacks from freeze-dried pods within three minutes. They contain no preservatives, artificial flavorings, colorings or additives.

By ISRAEL21c - Wednesday, July 4, 2018 - Full Story

OnePlus wireless ear buds offer good sound and value

OnePlus Bullets Wireless
Cord cutters are referred to usually as people who’ve dumped cable TV, either going only with off the air signals or using alternative services such as Netflix, YouTube and the like as ways to get their programming fixes.

By Jim Bray - Saturday, June 30, 2018 - Full Story

Thermal camouflage disguises hot and cold

Thermal camouflage disguises hot and cold
Hunters don camouflage clothing to blend in with their surroundings. But thermal camouflage – or the appearance of being the same temperature as one’s environment – is much more difficult. Now researchers, reporting in ACS’ journal Nano Letters, have developed a system that can reconfigure its thermal appearance to blend in with varying temperatures in a matter of seconds.

By American Chemical Society - Wednesday, June 27, 2018 - Full Story

China and Scientific Scandals

China and Scientific Scandals
China has more laboratory scientists than any other country, outspends the entire European Union on research and development, and produces more scientific articles than any other nation except the United States. But in its rush to dominance, China has stood out in another, less boastful way. (1)

By Jack Dini - Tuesday, June 26, 2018 - Full Story

Robot bloodhound tracks odors on the ground

Robot bloodhound tracks odors on the ground
Bloodhounds are famous for their ability to track scents over great distances. Now researchers have developed a modern-day bloodhound – a robot that can rapidly detect odors from sources on the ground, such as footprints. The robot, reported in ACS Sensors, could even read a message written on the ground using odors as a barcode.

By American Chemical Society - Wednesday, June 20, 2018 - Full Story

Crumple up this keyboard and stick it in your pocket

Crumple up this keyboard and stick it in your pocket
Bendable portable keyboards for use with computers and other electronic devices are already on the market, but they have limited flexibility, and they’re fairly sizable when rolled up for transport. Now researchers have crafted an inexpensive keyboard that is so tough, flexible and thin that it can be crumpled up and tucked in a pocket without damaging it. The study appears in the journal ACS Applied Materials & Interfaces.

By American Chemical Society - Wednesday, June 20, 2018 - Full Story

Watch: Caesar’s last breath and Einstein’s lost fridge

Watch: Caesar's last breath and Einstein's lost fridge
WASHINGTON— Are you breathing air molecules that were once exhaled by Caesar, Joan of Arc or Madame Curie? And why did Albert Einstein try to break into the refrigerator business? Writer Sam Kean, author of Caesar’s Last Breath and The Disappearing Spoon, explains in this video,

By American Chemical Society - Thursday, June 14, 2018 - Full Story

Watch: E- textiles control home appliances with the swipe of a finger

Watch: E- textiles control home appliances with the swipe of a finger
Electronic textiles could allow a person to control household appliances or computers from a distance simply by touching a wristband or other item of clothing — something that could be particularly helpful for those with limited mobility. Now researchers, reporting in ACS Nano, have developed a new type of e-textile that is self-powered, highly sensitive and washable. A video of an e-wristband in action is available here.

By American Chemical Society - Wednesday, June 13, 2018 - Full Story

No spring this year? No problem – it’s still time to clean up your tech stuff

spring cleaning
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.


Blackcurrant dye could make hair coloring safer, more sustainable

Blackcurrant dye could make hair coloring safer, more sustainable
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.

By American Chemical Society - Thursday, May 31, 2018 - Full Story

Preserving a painter’s legacy with nanomaterials

Preserving a painter's legacy with nanomaterials
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.

By American Chemical Society - Tuesday, May 29, 2018 - Full Story

Watch: Chameleons are masters of nanotechnology

Watch: Chameleons are masters of nanotechnology
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:

By American Chemical Society - Friday, May 25, 2018 - Full Story

Step aside Superman, steel is no competition for this new material

Step aside Superman, steel is no competition for this new material
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.”

By American Chemical Society - Wednesday, May 16, 2018 - Full Story

Placeboism

Placeboism
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.”

By Dr. Klaus L.E. Kaiser - Saturday, May 12, 2018 - Full Story

Battery-free ‘smart’ toys move closer to commercial reality (video)

battery-free-smart-toys-move-closer-to-commercial-reality-video
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.

By American Chemical Society - Wednesday, May 9, 2018 - Full Story