Monday, April 23, 2018

Liquid cell transmission electron microscopy makes a window into the nanoscale

From energy materials to disease diagnostics, new microscopy techniques can provide more nuanced insight. Researchers first need to understand the effects of radiation on samples, which is possible with a new device developed for holding tightly sealed liquid cell samples for transmission electron microscopy.

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Neutrons provide insights into increased performance for hybrid perovskite solar cells

Neutron scattering has revealed, in real time, the fundamental mechanisms behind the conversion of sunlight into energy in hybrid perovskite materials. A better understanding of this behavior will enable manufacturers to design solar cells with significantly increased efficiency.

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Organic solar cells reach record efficiency, benchmark for commercialization

In an advance that makes a more flexible, inexpensive type of solar cell commercially viable, researchers have demonstrated organic solar cells that can achieve 15 percent efficiency.

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Saturday, April 21, 2018

New theory shows how strain makes for better catalysts

A new theory of how compression and tension can affect the reactivity of metal catalysts could be helpful in designing new and better catalysts.

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Far-red fluorescent silk can kill harmful bacteria as biomedical and environmental remedy

A silk hybrid material attacks bacteria when illuminated by a green light, thanks to a far-red fluorescent protein researchers transferred to its genetic makeup.

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GLUT5 fluorescent probe fingerprints cancer cells

Getting the results of a cancer biopsy can take up to two weeks. What if it could happen in 10 minutes? In two new papers, a team of chemists and engineers lay the groundwork for cancer detection and diagnostics based on a fluorescent GLUT5 probe. Documented in the new research, a cancer's type and malignancy changes the GLUT5 activity in a cell, creating a detectable 'fingerprint' of cancer.

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Portable device to sniff out trapped humans

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 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.

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