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Cartwheeling light reveals new optical phenomenon

NanoWerk.com - Mon, 06/29/2020 - 22:47
Scientists have discovered details about a novel type of polarized light-matter interaction with light that literally turns end over end as it propagates from a source. Their find could help study molecules like those in light-harvesting antennas anticipated to have unique sensitivity to the phenomenon.
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Researchers catch a wave to determine how forces control granular material properties

NanoWerk.com - Mon, 06/29/2020 - 22:41
Physicists used X-ray measurements and analyses to show that velocity scaling and dispersion in wave transmission is based on grainy particle arrangements and chains of force between them, while reduction of wave intensity is caused mainly from grainy particle arrangements alone.
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Spraying ethanol on nanofiber masks makes them reusable, study finds

ScienceDaily.com: Nanotechnology News - Mon, 06/29/2020 - 20:02
Researchers evaluate the filtration efficiency of nanofiber and melt-blown filters when cleaned with ethanol.
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Producing a gaseous messenger molecule inside the body, on demand

ScienceDaily.com: Nanotechnology News - Mon, 06/29/2020 - 20:02
Method could shed light on nitric oxide's role in the neural, circulatory, and immune systems.
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Researchers control elusive spin fluctuations in 2D magnets

ScienceDaily.com: Nanotechnology News - Mon, 06/29/2020 - 20:01
A team developed a new imaging technique that is fast and sensitive enough to observe elusive critical fluctuations in two-dimensional magnets. This real-time imaging allows researchers to control the fluctuations and switch magnetism via a ''passive'' mechanism that could eventually lead to more energy-efficient magnetic storage devices.
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Physicists see surprisingly strong light, high heat from nanogaps between plasmonic electrodes

ScienceDaily.com: Nanotechnology News - Mon, 06/29/2020 - 20:01
Physicists discover that plasmonic metals can be prompted to produce ''hot carriers'' that in turn emit unexpectedly bright light in nanoscale gaps between electrodes. The phenomenon could be useful for photocatalysis, quantum optics and optoelectronics.
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Multifunctional nanofiber protects against explosions

NanoWerk.com - Mon, 06/29/2020 - 19:14
Researchers have developed a lightweight, multifunctional nanofiber material that can protect wearers from both extreme temperatures and ballistic threats.
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Producing a gaseous messenger molecule inside the body, on demand

NanoWerk.com - Mon, 06/29/2020 - 19:07
Method could shed light on nitric oxide's role in the neural, circulatory, and immune systems.
Categories: English news

Engineers use 'DNA origami' to identify vaccine design rules

NanoWerk.com - Mon, 06/29/2020 - 18:58
In lab tests, virus-like DNA structures coated with viral proteins provoke a strong immune response in human B cells.
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The first liquid retina prosthesis

NanoWerk.com - Mon, 06/29/2020 - 18:50
Liquid, biocompatible and micro-injectable, the new retinal prosthesis is an aqueous suspension of photoactive nanoparticles that functionally replace the photoreceptors of the retina damaged by degenerative diseases and aging.
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Physicists see surprisingly strong light, high heat from nanogaps between plasmonic electrodes

NanoWerk.com - Mon, 06/29/2020 - 18:42
Seeing light emerge from a nanoscale experiment didn't come as a big surprise to physicists. But it got their attention when that light was 10,000 times brighter than they expected.
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Researchers control elusive spin fluctuations in 2D magnets

NanoWerk.com - Mon, 06/29/2020 - 17:19
Researchers developed a new imaging technique that is fast and sensitive enough to observe these elusive critical fluctuations in two-dimensional magnets. This real-time imaging allows researchers to control the fluctuations and switch magnetism via a 'passive' mechanism that could eventually lead to more energy-efficient magnetic storage devices.
Categories: English news

A new theory for semiconductors made of nanocrystals

NanoWerk.com - Mon, 06/29/2020 - 17:12
Scientists have provided the first theoretical explanation for how electrical current is conducted in semiconductors made of nanocrystals. In the future, this could lead to the development of new sensors, lasers or LEDs for TV screens.
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Stopping the unstoppable with atomic bricks

NanoWerk.com - Mon, 06/29/2020 - 15:29
A research team developed method for trapping elusive electrons.
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Nanoelectromechanical switches based reconfigurable computing

NanoWerk.com - Mon, 06/29/2020 - 10:37
Novel complementary nanoelectromechanical (CNEM) switches based on complementary ferroelectric nanocracks integrate the advantages of ferroelectric and nanoelectromechanical switches, such as nonvolatility, quasi-zero OFF-state leakage current and low operating voltage. These ferroelectric crack-based CNEM switches could realize energy-efficient and high-density reconfigurable computing, which can be specialized to a particular task through its universal programmability, offering large flexibility and short time from design to realization.
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Researchers print, tune graphene sensors to monitor food freshness, safety

NanoWerk.com - Mon, 06/29/2020 - 10:06
Researchers are using high-resolution printing technology and the unique properties of graphene to make low-cost biosensors to monitor food safety and livestock health.
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'Simulation microscope' examines transistors of the future

NanoWerk.com - Fri, 06/26/2020 - 20:41
Using a supercomputer, researchers have simulated and evaluated one hundred possible materials for designing high-performance transistors and discovered 13 promising candidates.
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Process for 'two-faced' nanomaterials may aid energy, information tech

ScienceDaily.com: Nanotechnology News - Fri, 06/26/2020 - 19:47
A team used a simple process to implant atoms precisely into the top layers of ultra-thin crystals, yielding two-sided structures with different chemical compositions. The resulting materials, known as Janus structures after the two-faced Roman god, may prove useful in developing energy and information technologies.
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Chemistry paves the way for improved electronic materials

NanoWerk.com - Fri, 06/26/2020 - 17:20
Indium nitride is a promising material for use in electronics, but difficult to manufacture. Scientists have developed a new molecule that can be used to create high-quality indium nitride, making it possible to use it in, for example, high-frequency electronics.
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Cellulose nanocrystals for manufacturing advanced materials

NanoWerk.com - Fri, 06/26/2020 - 17:14
A review of the scientific literature highlights the potential of hybrid materials based on cellulose nanocrystals.
Categories: English news