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Medical
7th September 2018
A pill for delivering biomedical micromotors

Using tiny micromotors to diagnose and treat disease in the human body could soon be a reality. But keeping these devices intact as they travel through the body remains a hurdle. Now in a study appearing in ACS Nano, scientists report that they have found a way to encapsulate micromotors into pills. The pill’s coating protects the devices as they traverse the digestive system prior to releasing their drug cargo.

3D Printing
2nd August 2018
Fast, cheap and colourful 3D printing

People are exploring the use of 3D printing for wide-ranging applications, including manufacturing, medical devices, fashion and even food. But one of the most efficient forms of 3D printing suffers from a major drawback: It can only print objects that are gray or black in colour. Now, researchers have tweaked the method so it can print in all of the colours of the rainbow. They report their results in the ACS journal Nano Letters.

Component Management
22nd June 2018
Keyboard can be crumpled up and tucked in a 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.

Component Management
15th January 2018
Gecko-inspired adhesive could defy gravity

Some animals, such as geckos, can easily climb up walls and across ceilings. But currently, no material exists that allows everyday people to scale walls or transverse ceilings as effortlessly. Now, scientists report in ACS Applied Materials and Interfaces a dry adhesive that could someday make it easier to defy gravity. Geckos can scale walls because of their unique toe pads that help them quickly attach and detach from surfaces.

Wearables
12th October 2017
A chemical and biological threat detector-on-a-ring

Wearable sensors are revolutionising the tech-world, capable of tracking processes in the body, such as heart rates. They're even becoming fashionable, with many of them sporting sleek, stylish designs. But wearable sensors also can have applications in detecting threats that are external to the body. Researchers now report in ACS Sensors a first-of-its kind device that can do just that. And to stay fashionable, they've designed it as a ring.

Medical
22nd August 2017
Polymer could help lower blood glucose and weight

Diabetes is a tough disease to manage. Oral medications, insulin shots, close monitoring of blood sugar, dietary changes and exercise can all factor into a person's treatment regimen. Now researchers are exploring a novel, simpler approach: implanting a polymer sponge into fat tissue. Their study has shown that in obese mice with symptoms resembling Type 2 diabetes, the implant reduced weight gain and blood-sugar levels—by getting the fat t...

Aerospace & Defence
22nd August 2017
In outer space, your pee can be gold

Imagine you're on your way to Mars, and you lose a crucial tool during a spacewalk. Not to worry, you'll simply re-enter your spacecraft and use some microorganisms to convert your urine and exhaled carbon dioxide (CO2) into chemicals to make a new one. That's one of the ultimate goals of scientists who are developing ways to make long space trips feasible. The researchers are presenting their results at the 254th National Meeting & Expo...

Medical
27th June 2017
Barometric sensor detects presence of disease biomarkers

Researchers from Jinan University in Guangzhou, China and Washington State University have developed a novel type of sensor that works by measuring pressure changes induced by the production of oxygen (O2). The technology may miniaturise and make readily available testing of a wide variety of biomarkers. The team of researchers has already demonstrated how the technology can be used to detect thrombin, a blood clotting enzyme, and carcinoembryoni...

Optoelectronics
8th June 2017
Building 'OLEDs' from the ground up

From smartphones to TVs and laptops, LED displays are ubiquitous. OLEDs are among the most energy efficient of these devices, but they generally have higher production costs due to the laborious fabrication processes needed to arrange them properly. Today in ACS Central Science, researchers introduce a new way to efficiently create patterns of OLEDs.

Test & Measurement
6th April 2017
Contact lens could measure blood glucose in the future

Transparent biosensors embedded into contact lenses could soon allow doctors and patients to monitor blood glucose levels and a host of other telltale signs of disease without invasive tests. Scientists say the bio-sensing lenses, based on technology that led to the development of smartphones with more vivid displays, also could potentially be used to track drug use or serve as an early detection system for cancer and other serious medical condit...

Wearables
22nd March 2017
'Lab-on-a-glove' can detect nerve-agents

There's a reason why farmers wear protective gear when applying organophosphate pesticides. The substances are very effective at getting rid of unwanted bugs, but they can also make people sick. Related compounds—organophosphate nerve agents—can be used as deadly weapons. Now researchers have developed a fast way to detect the presence of such compounds in the field using a disposable "lab-on-a-glove." The report on the glove appears ...

3D Printing
3rd February 2017
No ink required: paper can be printed with light

In an effort to curb the adverse environmental impacts of paper production, researchers in a new study have developed a light-printable paper—paper that can be printed with UV light, erased by heating to 120°C (250°F), and rewritten more than 80 times. The secret to printing with light lies in the color-changing chemistry of nanoparticles, a thin coating of which can be easily applied to conventional paper to transform it into the l...

Wearables
22nd December 2016
Tattoos mark the spot for surgery and then disappear

Tattoos aren't just for body art. They can have medical applications, too. Doctors are using them on patients to mark an area for future treatment - particularly for non-melanoma skin cancer such as basal cell carcinoma - but the inks can cause problems. Now scientists have developed a better solution. In the journal ACS Nano, they report an ink that glows only under certain light conditions and can disappear altogether after a period of time.

Renewables
18th November 2016
Storing CO2 by turning it into rock

In November, the Paris Climate Agreement goes into effect to reduce global carbon emissions. To achieve the set targets, experts say capturing and storing carbon must be part of the solution. Several projects throughout the world are trying to make that happen. Now, a study on one of those endeavors, reported in the ACS journal Environmental Science & Technology Letters, has found that within two years, carbon dioxide (CO2) injected into basa...

Renewables
16th November 2016
Solar smart window offers privacy and light control

Smart windows get darker to filter out the sun's rays on bright days, and turn clear on cloudy days to let more light in. This feature can help control indoor temperatures and offers some privacy without resorting to aids such as mini-blinds. Now scientists report a new development in this growing niche: solar smart windows that can turn opaque on demand and even power other devices. The study appears in ACS Photonics.

Component Management
8th September 2016
Bringing graphene speakers to the mobile market

Scientists are one step closer to making graphene audio speakers for mobile devices. They report in the journal ACS Applied Materials & Interfaces a simple way to fabricate once-elusive thermoacoustic speakers using the ultra-thin material. Conventional speakers today rely on many mechanical parts that vibrate to create sound and must be encased in an acoustic cavity—essentially, in a box.

Medical
24th August 2016
Insulin pill could ease pain in diabetes treatment

Every day, millions of Americans with diabetes have to inject themselves with insulin to manage their blood-sugar levels. But less painful alternatives are emerging. Scientists are developing a way of administering the medicine orally with tiny vesicles that can deliver insulin where it needs to go without a shot. They will share their in vivo testing results. The researchers are presenting their work at the 252nd National Meeting & Expo...

Power
23rd August 2016
Edible batteries could power ingestible medical devices

Non-toxic, edible batteries could one day power ingestible devices for diagnosing and treating disease. One team reports progress toward that goal with their batteries made with melanin pigments, naturally found in the skin, hair and eyes. The researchers will present their work at the 252nd National Meeting & Exposition of the American Chemical Society (ACS).

Component Management
23rd August 2016
Stretchy supercapacitors power wearable electronics

A future of soft robots that wash your dishes or smart T-shirts that power your cell phone may depend on the development of stretchy power sources. But traditional batteries are thick and rigid—not ideal properties for materials that would be used in tiny malleable devices. In a step toward wearable electronics, a team of researchers has produced a stretchy micro-supercapacitor using ribbons of graphene.

Medical
22nd August 2016
Injectable gels could prevent future heart failure

During a heart attack, clots or narrowed arteries block blood flow, harming or killing cells within the tissue. But the damage doesn't end after the crushing pain subsides. Instead, the heart's walls thin out, the organ becomes enlarged, and scar tissue forms. If nothing is done, the patient can eventually experience heart failure. But scientists now report they have developed gels that, in animal tests, can be injected into the heart to shore up...

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