A Gold Butterfly can make its own Semiconductor Skin

Calculated localized field (left) and temperature distribution (right) of the nano-butterfly structure. (Fujiwara H., et al, Nano Letters. December 23, 2019.)

A nanoscale gold butterfly provides a more precise route for growing/synthesizing nanosized semiconductors that can be used in nano-lasers and other applications.

Hokkaido University researchers have devised a unique approach for making nanosized semiconductors on a metal surface. The details of the method were reported in the journal Nano Letters and could further research into the fabrication of nanosized light and energy emitters.

The approach, developed by Hokkaido University’s Research Institute for Electronic Science and Hokkai-Gakuen University, involves generating localized heat on a gold nanoparticle within a ...

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One Small Grain of Moon Dust, One Giant Leap for Lunar Studies

Moon surface (stock image; elements furnished by NASA). | Credit: (c) Infinity Nostalgia / stock.adobe.com
Moon surface (stock image; elements furnished by NASA).
Credit: © Infinity Nostalgia / Adobe Stock

Scientists have found a new way to analyze the chemistry of the moon’s soil using a single grain of dust brought back by Apollo 17 astronauts in 1972. Their technique can help us learn more about conditions on the surface of the moon and formation of precious resources like water and helium there.

Back in 1972, NASA sent their last team of astronauts to the Moon in the Apollo 17 mission. These astronauts brought some of the Moon back to Earth so scientists could continue to study lunar soil in their labs. Since we haven’t returned to the Moon in almost 50 years, every lunar sample is precious. We need to make them count for researchers now and in the future...

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Molecular ‘Switch’ Reverses Chronic Inflammation and Aging

A molecular modeling image showing the detector portion of the NLRP3 inflammasome in red, magenta, and yellow
The NLRP3 receptor protein is responsible for detecting potential pathogens in the body and launching an immune response. (Image by MLGProGamer123 via Wikimedia Commons)

Chronic inflammation, which results when old age, stress or environmental toxins keep the body’s immune system in overdrive, can contribute to a variety of devastating diseases, from Alzheimer’s and Parkinson’s to diabetes and cancer.

Now, scientists at the University of California, Berkeley, have identified a molecular “switch” that controls the immune machinery responsible for chronic inflammation in the body. The finding, which appears online Feb. 6 in the journal Cell Metabolism, could lead to new ways to halt or even reverse many of these age-related conditions.

“My lab is very interested in unde...

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Portable Lab you Plug into your Phone can Diagnose Illnesses like Coronavirus

UC engineers developed a smartphone app that can record and transmit test results from a portable lab that people can plug into their phones. The lab uses saliva from plastic test strips that people put in their mouths like a sucker. Photo/Joseph Fuqua II/UC Creative Services

Engineers with the University of Cincinnati have created a tiny portable lab that plugs into your phone, connecting it automatically to a doctor’s office through a custom app UC developed. The lab the size of a credit card can diagnose infectious diseases such as coronavirus, malaria, HIV or Lyme disease or countless other health conditions like depression and anxiety.

The patient simply puts a single-use plastic lab chip into his or her mouth then plugs that into a slot in the box to test the saliva.

The ...

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