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'Miracle' filter turns store-bought LEDs into spintronic devices

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 1:54pm
Scientists transformed existing optoelectronic devices into ones that can control electron spin at room temperature, without a ferromagnet or magnetic field. Researchers replaced the electrodes of store-bought LEDs with a patented spin filter made from hybrid organic-inorganic halide perovskite.
Categories: Science

Chemical analyses find hidden elements from renaissance astronomer Tycho Brahe's alchemy laboratory

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Danish Tycho Brahe was most famous for his contributions to astronomy. However, he also had a well-equipped alchemical laboratory where he produced secret medicines for Europe's elite.
Categories: Science

New battery-free technology to power electronic devices using ambient radiofrequency signals

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Researchers demonstrated a novel technique to efficiently convert ambient low-power radiofrequency signals into DC power. This 'rectifier' technology can be easily integrated into energy harvesting modules to power electronic devices and sensors, enabling battery-free operation.
Categories: Science

Save your data on printable magnetic devices? New laser technique's twist might make this reality

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
A team has been developing a new type of laser-induced forward transfer (LIFT) for laser printing using an optical vortex, which has been dubbed OV-LIFT. The team succeeded in printing crystals with helix-like twisted structures, which could hold promise in creating printable magnetic devices for high-density data storage.
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Save your data on printable magnetic devices? New laser technique's twist might make this reality

Computers and Math from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
A team has been developing a new type of laser-induced forward transfer (LIFT) for laser printing using an optical vortex, which has been dubbed OV-LIFT. The team succeeded in printing crystals with helix-like twisted structures, which could hold promise in creating printable magnetic devices for high-density data storage.
Categories: Science

Indoor solar cells that maximize the use of light energy

Computers and Math from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Chemists have synthesized materials that can improve solar elements for indoor use. Such photovoltaic cells, which can also be integrated into various electronic devices, generate electricity even in low-light conditions.
Categories: Science

Indoor solar cells that maximize the use of light energy

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Chemists have synthesized materials that can improve solar elements for indoor use. Such photovoltaic cells, which can also be integrated into various electronic devices, generate electricity even in low-light conditions.
Categories: Science

How molecular interactions make it possible to overcome the energy barrier

Computers and Math from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Non-reciprocal interactions allow the design of more efficient molecular systems. Scientists now propose a mechanism on how energy barriers in complex systems can be overcome. These findings can help to engineer molecular machines and to understand the self-organization of active matter.
Categories: Science

How molecular interactions make it possible to overcome the energy barrier

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Non-reciprocal interactions allow the design of more efficient molecular systems. Scientists now propose a mechanism on how energy barriers in complex systems can be overcome. These findings can help to engineer molecular machines and to understand the self-organization of active matter.
Categories: Science

Energy planning in Ghana as a role model for the world

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:48pm
Researchers are investigating ways to better plan for climate-resilient energy systems in the Global South. Focusing on the case study of Accra, the capital of Ghana, the multidisciplinary team expanded conventional energy system modeling approaches by incorporating a range of socio-techno-economic challenges, climate change impacts, and resilience metrics into their models. Their approaches are applicable worldwide to support widespread sustainable and resilient energy system transitions.
Categories: Science

Quantum sensor for the atomic world

Computers and Math from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
In a scientific breakthrough, an international research team has developed a quantum sensor capable of detecting minute magnetic fields at the atomic length scale. This pioneering work realizes a long-held dream of scientists: an MRI-like tool for quantum materials.
Categories: Science

Quantum sensor for the atomic world

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
In a scientific breakthrough, an international research team has developed a quantum sensor capable of detecting minute magnetic fields at the atomic length scale. This pioneering work realizes a long-held dream of scientists: an MRI-like tool for quantum materials.
Categories: Science

Nonreciprocal interactions go nonlinear

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
Using two optically trapped glass nanoparticles, researchers observed a novel collective Non-Hermitian and nonlinear dynamic driven by nonreciprocal interactions. This contribution expands traditional optical levitation with tweezer arrays by incorporating the so called non-conservative interactions.
Categories: Science

Researchers explore the interplay between high-affinity DNA and carbon nanotubes

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
Single-walled carbon nanotubes (SWCNTs) hold promise for biomedicine and nanoelectronics, yet the functionalization with single-stranded DNA (ssDNA) remains a challenge. Researchers using high-affinity ssDNA sequences identified through high-throughput selection. They demonstrated the effectivity and stability of these constructs using molecular dynamics simulations. Machine-learning models were used to accurately predict patterns that govern ssDNA-SWCNT binding affinity. These findings provide valuable insights into the interactions between ssDNA and SWCNTs.
Categories: Science

Artificial blood vessels could improve heart bypass outcomes

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
3D-printed blood vessels, which closely mimic the properties of human veins, could transform the treatment of cardiovascular diseases. Strong, flexible, gel-like tubes -- created using a novel 3D printing technology -- could improve outcomes for heart bypass patients by replacing the human and synthetic veins currently used in surgery to re-route blood flow, experts say.
Categories: Science

Space-trekking muscle tests drugs for microgravity-induced muscle impairment

Space and time from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
A gentle rumble ran under a researcher's feet as a rocket carrying her research -- live, human muscle cells grown on scaffolds fixed on tiny chips -- lifted off, climbed, and disappeared into the sky to the International Space Station National Laboratory. These chips would help her better understand muscle impairment, often seen in astronauts and older adults, and test drugs to counter the condition.
Categories: Science

A recipe for zero-emissions fuel: Soda cans, seawater, and caffeine

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
Engineers discovered that when the aluminum in soda cans is purified and mixed with seawater, the solution produces hydrogen -- which can power an engine or fuel cell without generating carbon emissions. The reaction can be sped up by adding caffeine.
Categories: Science

Engineer develops technique that enhances thermal imaging and infrared thermography for police, medical, military use

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:47pm
A new method to measure the continuous spectrum of light is set to improve thermal imaging and infrared thermography.
Categories: Science

New study shows at-home colon cancer screening test reduces risk of colorectal cancer death, as effective as screening colonoscopy

Matter and energy from Science Daily Feed - Thu, 07/25/2024 - 12:46pm
A noninvasive colorectal cancer screening test that can be done at home could reduce the risk of colorectal cancer death by 33%, according to a new study.
Categories: Science

Next-gen cooling system to help data centers become more energy efficient

Computers and Math from Science Daily Feed - Thu, 07/25/2024 - 12:46pm
Artificial intelligence (AI) is hot right now. Also hot: the data centers that power the technology. And keeping those centers cool requires a tremendous amount of energy. The problem is only going to grow as high-powered AI-based computers and devices become commonplace. That's why researchers are devising a new type of cooling system that promises to dramatically reduce energy demands.
Categories: Science

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