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In a paper to be published in the forthcoming issue in NANO, a team of researchers from the School of Chemistry and Chemical Engineering at Hunan University of Science and Technology have proposed a novel strategy for the synthesis of non-precious metal catalysts in zinc-air batteries that do not compromise its electroactivity, affordability and stability.

As a green and sustainable energy generator, zinc-air battery has attracted great attention from researchers due to its high specific energy, high current density, low cost, and environmental friendliness. Yet it is not without its drawbacks. The slow oxygen reduction reaction (ORR) of its cathode has become an obstacle to its commercial application. One possible solution is to use platinum (Pt) and Pt-based catalysts, but its high cost and scarce availability make it less ideal. In addition, alkaline KOH (or NaOH) is generally used as the electrolyte, but it leads to the generation of carbonates (CO₃^2-) due to the dissolution of CO₂ in the electrolyte as well as the spontaneous corrosion of the anodic zinc in strong alkaline media. This has the effect of slowing down the ionic conductivity of the electrolyte and battery life. Therefore, a neutral electrolyte should be used instead.

The periodic table of chemical elements turns 150 this year. The anniversary is a chance to shine a light on particular elements – some of which seem ubiquitous but which ordinary people beyond the world of chemistry probably don’t know much about.

One of these is gold, which was the subject of my postgraduate degrees in chemistry, and which I have been studying for almost 30 years. In chemistry, gold can be considered a late starter when compared to most other metals. It was always considered to be chemically “inert” – but in recent decades it has flourished and a variety of interesting applications have emerged.

What interesting trends are we seeing in genetics research right now? originally appeared on Quora: the place to gain and share knowledge, empowering people to learn from others and better understand the world.

Answer by Carrie Northover, Research Director at 23andMe, on Quora:

One of the coolest things right now is the size and scale of the research we’re able to do with human genetics, and those numbers are just getting bigger and bigger.

A new technique for the decontamination of organs before transplantation using ultraviolet and red light irradiation has been developed by Brazilian and Canadian researchers and is described in an article titled “Inactivating hepatitis C virus in donor lungs using light therapies during normothermic ex vivo lung perfusion,” published in the journal Nature Communications. The research was partially conducted at the Optics and Photonics Research Center (CEPOF), hosted by the University of S\xE3o Paulo (USP) at S\xE3o Carlos in S\xE3o Paulo State (Brazil).

“This biophotonic technique is revolutionary, as it helps avoid the transmission of diseases during organ transplantation,” said Vanderlei Bagnato, full professor at the University of S\xE3o Paulo, director of its S\xE3o Carlos Physics Institute (IFSC-USP), and principal investigator for CEPOF.

Bagnato’s group partnered with researchers at the University of Toronto in Canada, which has the world’s largest lung transplantation program, having performed 197 such surgeries in 2018 alone. According to thoracic surgeon Marcelo Cypel, who heads the service, the number of transplants could be higher if organs could be decontaminated, especially when the prospective donor has a chronic viral infection such as hepatitis C.

Continue reading “Biophotonic therapy eliminates bacteria and viruses from organs before transplantation” »

Scientists say our brains will connect to computers within decades to form an ‘internet of thoughts’ that will provide instant access to information…

Forward-leaning scientists and researchers say advancements in society’s computers and biotechnology will go straight to our heads — literally.

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SpaceX will launch NASA’s $69 million mission to crash a spacecraft into an ASTEROID in 2021 to test methods that could save Earth from deadly impacts…

The groundbreaking mission will be the first demonstrated attempt to deflect an asteroid by purposely crashing an object into it at high speed.

After launching from California’s Vandenberg Air Force base atop a Falcon 9 rocket in 2021, the DART craft is expected to reach the object Didymos in October 2022, when it’s 11 million kilometers (6.8 million miles) from Earth.

Continue reading “SpaceX will launch NASA’s mission to crash spacecraft into an asteroid” »

Spine-chilling new series from The Walking Dead creator will explore dystopian future where social media is linked to your BRAIN using tech that ‘Elon Musk and Facebook are already trying to develop…

Channing Powell, the creator of the hit horror television series ‘The Walking Dead’, is not someone who is easily spooked.

Continue reading “Series to explore future where social media is linked to your BRAIN” »

Researchers have now made a material that is superelastic even at extremely cold temperatures, which could be helpful in space.

Imagine a future technology that would provide instant access to the world’s knowledge and artificial intelligence, simply by thinking about a specific topic or question. Communications, education, work, and the world as we know it would be transformed.

Writing in Frontiers in Neuroscience, an international collaboration led by researchers at UC Berkeley and the US Institute for Molecular Manufacturing predicts that exponential progress in nanotechnology, nanomedicine, AI, and computation will lead this century to the development of a “Human Brain/Cloud Interface” (B/CI), that connects brain cells to vast cloud-computing networks in real time.