Researchers have combined a new oxygen-sensing film with machine learning to create a wearable sensor capable of measuring tissue oxygenation through skin. The device could be used to monitor a person's oxygen levels on a ...
Optics & Photonics
Jun 30, 2021
0
7
Worldwide, 267 million people live on land less than two meters above sea level, which is most at risk from sea level rise, according to a study in Nature Communications. The paper suggests that by 2100 the number could increase ...
Environment
Jun 30, 2021
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9
Plants contain several types of specialized light-sensitive proteins that measure light by changing shape upon light absorption. Chief among these are the phytochromes.
Plants & Animals
May 25, 2021
0
21
Larger bumblebees are more likely to go out foraging in the low light of dawn, new research shows.
Plants & Animals
May 5, 2021
0
37
An advanced laser technique has allowed researchers to observe, in real-time, the decomposition of a pollutant into atmospheric nitrous acid, which plays a key role in the formation of ozone and photochemical smog. The technique, ...
Materials Science
Feb 3, 2021
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23
An international research team involving Professor Federico Rosei of the Institut national de la recherche scientifique (INRS) has demonstrated a novel process to modify the structure and properties of graphene. This chemical ...
Nanomaterials
Dec 16, 2020
0
214
Heralding the end of a decade-long quest, in a promising new class of extremely thin, two-dimensional semiconductors, scientists have for the first time directly visualized and measured elusive particles, called dark excitons, ...
General Physics
Dec 3, 2020
1
72
The vision of the future of miniaturization has produced a series of synthetic molecular motors that are driven by a range of energy sources and can carry out various movements. A research group at Friedrich-Alexander-Universität ...
Analytical Chemistry
Nov 23, 2020
0
65
Physicists from MIPT and Vladimir State University, Russia, have converted light energy into surface waves on graphene with nearly 90% efficiency. They relied on a laser-like energy conversion scheme and collective resonances. ...
Nanophysics
Nov 16, 2020
1
190
Artificial night-time lighting has a diverse range of effects across the natural world and should be limited where possible, researchers say.
Ecology
Nov 2, 2020
0
337
