Current Magnetic Nanoparticles News and Events

Current Magnetic Nanoparticles News and Events, Magnetic Nanoparticles News Articles.
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New metamaterial offers reprogrammable properties
EPFL scientists have developed a metamaterial whose mechanical properties can be reprogrammed on demand and whose internal structure can be modified by applying a magnetic field. (2021-01-20)

One-dimensional quantum nanowires fertile ground for Majorana zero modes
One-dimensional quantum 'nanowires' - which have length, but no width or height - provide a unique environment for the formation and detection of a quasiparticle known as a Majorana zero mode, which are their own antimatter particle. A new UNSW advance in detection of these exotic quasiparticles (just published in Nature Communications) has potential applications in fault-resistant topological quantum computers, and topological superconductivity. (2021-01-19)

NASA explores solar wind with new view of small sun structures
Scientists have combined NASA data and cutting-edge image processing to gain new insight into the solar structures that create the Sun's flow of high-speed solar wind, detailed in new research published today in The Astrophysical Journal. This first look at relatively small features, dubbed ''plumelets,'' could help scientists understand how and why disturbances form in the solar wind. (2021-01-19)

Parkinson's: Initial steps to show nerves their growth direction magnetically
One reason why nerve damage in the brain cannot regenerate easily is that the neurites do not know in which direction they should grow. A team of researchers from Ruhr-Universität Bochum (RUB), Sorbonne University Paris, and the Technische Universität Braunschweig is now working on showing them the direction using magnetic nanoparticles. (2021-01-18)

Tracking the evolution Maxwell knots
A new study published in EPJ C by Alexei Morozov and Nikita Tselousov, from the Institute of Theoretical and Experimental Physics and the Institute of Transmission Problems, Moscow, respectively, details peculiar solutions to the Maxwell equations--so-called Maxwell knots. The research could have applications in the fields of mathematical physics and string theory. (2021-01-18)

RUDN University and RLT scientists: Light, magnetic field, and ultrasound could help fight COVID-19
A team of researchers from RUDN University and RLT suggested restoring normal levels of lymphocytes in patients with COVID-19 and other viral diseases by subjecting them to the combined influence of light, magnetic field, and ultrasound. (2021-01-18)

Broadening horizons for people with quadriplegia
An assistive technology uses magnetic skin to support freedom of movement for people with quadriplegia. (2021-01-17)

New delivery method promises relief from antipsychotic medication's adverse side effects
A team of neuroscientists and engineers at McMaster University has created a nasal spray to deliver antipsychotic medication directly to the brain instead of having it pass through the body. (2021-01-15)

Target discovered that halts osteoarthritis-type knee cartilage degeneration
In a mouse study, researchers used nanotechnology and previous knowledge of a protein pathway to significantly reduce knee cartilage degeneration and pain (2021-01-15)

Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo
Achieving ultrafast and energy-efficient optical control of magnetism beyond light's 'diffraction limit' could revolutionize information-processing technology. Towards this goal, researchers led by Xiangping Li at Jinan University and Alexey V. Kimel at Radboud University have determined the fastest possible rate of the optical reversal of magnetization of up to 3?GHz, and proposed a method to achieve data recording at scales below light's 'diffraction limit', which is generally believed to restrict the attainable resolution. (2021-01-14)

Could we harness energy from black holes?
Physicists have found a new way to extract energy from black holes by breaking and rejoining magnetic field lines near the event horizon. (2021-01-13)

Shine on: Avalanching nanoparticles break barriers to imaging cells in real time
A team of researchers co-led by Berkeley Lab and Columbia University has developed a new material called avalanching nanoparticles that, when used as a microscopic probe, offers a simpler approach to taking high-resolution, real-time snapshots of a cell's inner workings at the nanoscale. (2021-01-13)

Researchers identify nanoparticles that could deliver therapeutic mRNA before birth
Researchers at Children's Hospital of Philadelphia and the School of Engineering and Applied Science at the University of Pennsylvania have identified ionizable lipid nanoparticles that could be used to deliver mRNA as part of fetal therapy. The proof-of-concept study, published today in Science Advances, engineered and screened a number of lipid nanoparticle formulations for targeting mouse fetal organs and has laid the groundwork for testing potential therapies to treat genetic diseases before birth. (2021-01-13)

Strategy tested in mice protects against SARS-CoV-2 & coronaviruses that represent human threats
An immunization strategy tested in mice protects against infection from SARS-CoV-2, as well as from potentially emerging animal coronaviruses, researchers say. (2021-01-12)

Nanoparticle immunization technology could protect against many strains of coronaviruses
Caltech researchers are studying a new type of immunization that may be able to protect against many variants of viruses. (2021-01-12)

University at Buffalo researchers report quantum-limit-approaching chemical sensing chip
University at Buffalo researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals -- everything from illicit drugs to pollution -- as quickly as a breathalyzer identifies alcohol. (2021-01-11)

'Swiss Army knife' catalyst can make natural gas burn cleaner
'Swiss Army knife' catalyst can bring the combustion temperature of methane down by about half - from above 1400 degrees Kelvin down to 600 to 700 degrees Kelvin. (2021-01-11)

NTU Singapore develops oral insulin nanoparticles that could be an alternative to jabs
NTU Singapore scientists have developed insulin nanoparticles that may become an alternative to insulin injections for diabetics. Delivering insulin orally would be preferable over insulin jabs because it causes less pain, but remains challenging because insulin gets degraded in the gut before it can reach the bloodstream to regulate blood glucose. To overcome this challenge, the scientists designed a nanoparticle loaded with insulin at the core, then coated with alternating layers of insulin and chitosan. (2021-01-11)

Ferrofluid surface simulations go more than skin deep
Computer models efficiently and accurately simulate the magnetic responses of ferrofluids by considering only the fluid's surface. (2021-01-10)

Nanocrystals that eradicate bacteria biofilm
POSTECH-UNIST joint research team finds ways to control the surface texture of nanostructures. (2021-01-08)

Single-dose COVID-19 vaccine triggers antibody response in mice
Across the world, health care workers and high-risk groups are beginning to receive COVID-19 vaccines, offering hope for a return to normalcy amidst the pandemic. However, the vaccines authorized for emergency use in the U.S. require two doses to be effective, which can create problems with logistics and compliance. Now, researchers reporting in ACS Central Science have developed a nanoparticle vaccine that elicits a virus-neutralizing antibody response in mice after only a single dose. (2021-01-08)

Nanoparticle vaccine for COVID-19
Researchers at Stanford are working to develop a single-dose vaccine for SARS-CoV-2 that could potentially be stored at room temperature. (2021-01-08)

Researchers repurpose 'damaged' polymer optical fibers to precisely measure magnetic fields
Optical fiber sensors can measure strain, temperature, pressure, and many other physical parameters along the fibers, but they are currently immune to electromagnetic noise -- interference from other external electric or magnetic interactions. It is a desirable trait, until the effect of the electromagnetic field on the fibers needs to be measured. An international research team has used what was previously considered a 'damaged' part of an optical fiber to develop such a magnetic field sensor. (2021-01-07)

New hard disk write head analytical technology can increase hard disk capacities
Using synchrotron radiation at SPring-8 - a large-scale synchrotron radiation facility - Tohoku University, Toshiba Corporation, and the Japan Synchrotron Radiation Research Institute (JASRI) have successfully imaged the magnetization dynamics of a hard disk drive (HDD) write head for the first time, with a precision of one ten-billionth of a second. The method makes possible precise analysis of write head operations, accelerating the development of the next-generation write heads and further increasing HDD capacity. (2021-01-07)

Researchers question fundamental study on the Kondo effect
In 1998, spectroscopic studies on the Kondo effect using scanning tunnelling microscopy were published, which are considered ground-breaking and have triggered countless others of a similar kind. Many of these studies may have to be re-examined now that researchers from Jülich, Germany have shown that the Kondo effect cannot be proven beyond doubt by this method. Instead, another phenomenon is creating precisely the spectroscopic ''fingerprint'' that was previously attributed to the Kondo effect. (2021-01-07)

A bit too much: reducing the bit width of Ising models for quantum annealing
Quantum annealers are devices that physically implement a quantum system called the 'Ising model' to solve combinatorial optimization problems. However, the coefficients of the Ising model often require a large bit width, making it difficult to implement physically. Now, scientists from Japan demonstrate a method to reduce the bit width of any Ising model, increasing the applicability and versatility of quantum annealers in many fields, including cryptography, logistics, and artificial intelligence. (2021-01-06)

Old silicon learns new tricks
Researchers from Nara Institute of Science and Technology fabricated regular arrays of iron-coated silicon crystals that are atomically smooth. The defect-free pyramidal composition of the crystals impart magnetic properties that will enhance the functionality of 3D spintronics and other technologies. (2021-01-06)

Physicists observe competition between magnetic orders
Two-dimensional materials, consisting of a single layer of atoms, have been booming in research for years. They possess novel properties that can only be explained with the help of the laws of quantum mechanics. Researchers have now used ultracold atoms to gain new insights into previously unknown quantum phenomena. They found out that the magnetic orders between two coupled thin films of atoms compete with each other. The study has been published in Nature. (2021-01-06)

Magnets dim natural glow of human cells, may shed light on how animals migrate
New research shows how X-Men villain Magneto's super powers could really work. Researchers in Japan have made the first observations of biological magnetoreception - live, unaltered cells responding to a magnetic field in real time. This discovery is a crucial step in understanding how animals from birds to butterflies navigate using Earth's magnetic field and addressing the question of whether weak electromagnetic fields in our environment might affect human health. (2021-01-05)

Heat treatment may make chemotherapy more effective
The study, published in the Journal of Materials Chemistry B, found that ''loading'' a chemotherapy drug on to tiny magnetic particles that can heat up the cancer cells at the same time as delivering the drug to them was up to 34% more effective at destroying the cancer cells than the chemotherapy drug without added heat. (2021-01-05)

Scrambled supersolids
Supersolids are fluid and solid at the same time. Physicists from Innsbruck and Geneva have for the first time investigated what happens when such a state is brought out of balance. They discovered a soft form of a solid of high interest for science. As the researchers led by Francesca Ferlaino and Thierry Giamarchi report in Nature Physics, they were also able to reverse the process and restore supersolidity. (2021-01-04)

Better together: Scientists discover applications of nanoparticles with multiple elements
As catalysts for fuel cells, batteries and processes for carbon dioxide reduction, alloy nanoparticles that are made up of five or more elements are shown to be more stable and durable than single-element nanoparticles. (2021-01-04)

Nanoparticle drug-delivery system developed to treat brain disorders
To facilitate successful delivery of therapeutic agents to the brain, a team of bioengineers, physicians, and collaborators at Brigham and Women's Hospital and Boston Children's Hospital created a nanoparticle platform, which can facilitate therapeutically effective delivery of encapsulated agents in mice with a physically breached or intact BBB. In a mouse model of traumatic brain injury (TBI), they observed that the delivery system showed three times more accumulation in brain than conventional methods of delivery. (2021-01-01)

Theory describes quantum phenomenon in nanomaterials
Theoretical physicists Yoshimichi Teratani and Akira Oguri of Osaka City University, and Rui Sakano of the University of Tokyo have developed mathematical formulas that describe a physical phenomenon happening within quantum dots and other nanosized materials. The formulas, published in the journal Physical Review Letters, could be applied to further theoretical research about the physics of quantum dots, ultra-cold atomic gasses, and quarks. (2020-12-23)

Understanding nanoparticle entry mechanism into tumors
Announcing a new publication for BIO Integration journal. In this commentary the authors Phei Er Saw and Sangyong Jon from Sun Yat-Sen University, Guangzhou, China and the Korea Advanced Institute of Science and Technology, Daejeon, Korea, consider how the entry mechanism of nanoparticles into tumors determines the future direction of nanomedicine development. (2020-12-23)

The first endovascular technology that can explore capillaries
EPFL scientists have invented a technique to navigate electronic devices that are smaller than human hair inside blood vessels and reach arterioles. The next step will be conducting in vivo tests. (2020-12-22)

Nanoparticles could improve oil production
A team of scientists from Siberian Federal University together with their colleagues from Novosibirsk studied the effect of nanoparticles on oil production efficiency. When added to the water that displaces oil from a reservoir, nanoparticles improve the separation of oil drops from mine rock and their washing to the surface. The work received a grant from the Russian Science Foundation, and an article about it was published in the Journal of Molecular Liquids. (2020-12-22)

NTU Singapore scientists invent glue activated by magnetic field
Scientists from Nanyang Technological University, Singapore (NTU Singapore), have developed a new way to cure adhesives using a magnetic field. (2020-12-22)

New electron microscopy technique offers first look at previously hidden processes
Northwestern researchers have developed a new microscopy method that allows scientists to see the building blocks of 'smart' materials being formed at the nanoscale. (2020-12-22)

Big step with small whirls
Skyrmions are small magnetic objects that could revolutionize the data storage industry and also enable new computer architectures. However, there are a number of challenges that need to be overcome. A team of Empa researchers has succeeded for the first time in producing a tunable multilayer system in which two different types of skyrmions - the future bits for ''0'' and ''1'' - can exist at room temperature, as they reported in the journal Nature Communications. (2020-12-21)

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