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Light-based method enables precise control of ultrafast electron flow in a scanning tunneling microscope
المصدر: Phys.org - latest science and technology news stories · نُشر
What would it take to watch an electron move through a material? Researchers would need to see individual atoms and capture an electron's motion at incredibly short timescales. A Technion-led team has brought those two capabilities together in a scanning tunneling microscope, usi
What would it take to watch an electron move through a material? Researchers would need to see individual atoms and capture an electron's motion at incredibly short timescales. A Technion-led team has brought those two capabilities together in a scanning tunneling microscope, using carefully shaped laser pulses to control the direction of electron flow while preserving nanoscale spatial resolution.
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Ultrafast light pulses track molecular motion with three-femtosecond resolution
Researchers have observed a molecule in the first instants after it has absorbed light and tracked the coordinated motion of electrons and nuclei with a temporal resolution of three femtoseconds. This is the result achieved by an international research group led by the Politecnic
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Light, camera … razor blades?! How photography became an art form – in pictures
A new exhibition – which the Guardian gave five stars – tells the story of the birth of art photography. Here are some of the most astounding images, along with tales of the strange techniques that made them Continue reading...
Culture | The Guardian ·
Researchers develop AI tool to map microRNA binding sites on circular RNAs
Circular RNAs (circRNAs) are loop-shaped molecules that can influence gene regulation through interactions with microRNAs (miRNAs). This matters because circRNAs can exist as different full-length isoforms, and their back-splice junction (BSJ) connects the two ends of the RNA. Tr
Phys.org - latest science and technology news stories ·
Light-activated catalyst makes sustainable production of hydrogen peroxide more efficient
Hydrogen peroxide (H₂O₂) is a versatile chemical feedstock whose industrial production relies predominantly on an energy-intensive process with a substantial environmental footprint. One alternative is to produce it using a catalyst activated by light. In an international researc
Phys.org - latest science and technology news stories ·
Millions take fish oil for brain health. A two-year study found no benefit
A surprising two-year clinical trial found that fish oil supplements successfully delivered omega-3s to the brain but failed to improve memory or protect against Alzheimer's-related brain shrinkage. Researchers suspect that getting these nutrients through a healthy diet may offer
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