Project offers new step toward study of emergence, ‘materials by design,’ and future nanomagnets.
Using a D-Wave quantum-annealing computer as a testbed, scientists at Los Alamos National Laboratory have shown that it is possible to isolate so-called emergent magnetic monopoles, a class of quasiparticles, creating a new approach to developing “materials by design.”
“We wanted to study emergent magnetic monopoles by exploiting the collective dynamics of qubits,” said Cristiano Nisoli, a lead Los Alamos author of the study. “Magnetic monopoles, as elementary particles with only one magnetic pole, have been hypothesized by many, and famously by Dirac, but have proved elusive so far.”
Stable and reproducible spontaneous self-ignition and self-supporting combustion have been achieved at room temperature by exposing nanometer-sized catalytic particles to methanol/air or ethanol/air gas mixtures. Without any external ignition, structurally supported platinum nanoparticles instantaneously react with the gas mixtures. The reaction releases heat and produces CO2 and water. Such reactions starting at ambient temperature have reached both high (]600 °C) and low (a few tenths of a degree above room temperature) reaction temperatures. The reaction is controlled by varying the fuel/air mixture. Catalytic activity could be dramatically changed by reducing particle size and changing particle morphology.
Quantum control of an optically levitated nanoparticle with a mass of just one femtogram is demonstrated in a cryogenic environment by feedback-cooling the motion of the particle to the quantum ground state.
A pair of studies in Nature show that a quasiparticle, known as a plasmon polariton, can be pulled with and against a flow of electrons, a finding that could lead to more efficient ways of manipulating light at the nanoscale.
Interesting properties of carbon nanotubes prompt a search for diverse inorganic nanotubes. Here, the authors report a supertetrahedral chalcogenide cluster-based semiconducting nanotube array that exhibits high electric conductivity and oriented photoconductive behavior.
Check out our new promo for #transvision #future Summit 2021! Get your tickets! -> www.TransVisionMadrid.com There will be talks about #longevity #artificialintelligence #cryonics and much much more. You will also be able to network with speakers and attendees during 5 optional dinner/cocktails, and 2 tours of several UNESCO heritage sites and historical places: Ávila, Segovia, Monsaterio de El Escorial, Valle de los Caídos (Valley of the Fallen), Aranjuez & Toledo.
Humanity Plus Humanity Plus Humanity Plus Magazine MUTISHAN Interactive Vivian Francos #SEOHashtag Alcor Life Extension Foundation Cryonics Institute Cryonics Institute SENS Research Foundation SENS Research Foundation Posthuman Network Posthuman Network Cryonics4U Longevity Conferences Longevity for All U.S. Transhumanist Party Transhumanist Party Australia Transhumanist Party Virtual Rational Transhumanism Singularity University Ray Kurzweil Singularity Singularity Hub Ray Kurzweil’s Singularity Singularity Network Transhumanismo Brasil Transhumanismo Brasil TRANSHUMANISMO Christian Transhumanist Association Mormon Transhumanist Association SingularityNET Singularitarianism Foresight Institute Lifeboat Foundation Lifeboat Foundation Machine Intelligence Research Institute KrioRus The Hedonistic Imperative — Paradise Engineering.
Promo by sergio tarrero for alianza futurista & transvision madrid.
Spain will host the next world futurist summit on October 8, 9 and 10, 2021. Humanity+ will be the main international organizer of this international congress. Afterwards, during October 11 and 12, we will continue with informal conversations while traveling to UNESCO World Heritage Sites around Madrid: Aranjuez, Ávila, El Escorial, Segovia y Toledo. Every night will finish with optional cocktails in beautiful places for networking and meeting the participants and speakers.
To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method. The strategy has already been tested against hepatitis and adeno-associated viruses in cell cultures. It may also prove successful against corona viruses.
To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method. The strategy has already been tested against hepatitis and adeno-associated viruses in cell cultures. It may also prove successful against coronaviruses.
There are antibiotics against dangerous bacteria, but few antidotes to treat acute viral infections. Some infections can be prevented by vaccination but developing new vaccines is a long and laborious process.
Now an interdisciplinary research team from the Technical University of Munich, the Helmholtz Zentrum München, and the Brandeis University (USA) is proposing a novel strategy for the treatment of acute viral infections: The team has developed nanostructures made of DNA, the substance that makes up our genetic material, that can trap viruses and render them harmless.
Circa 1999 could lead to a sorta room temperature hydrogen fill up.
Masses of single-walled carbon nanotubes (SWNTs) with a large mean diameter of about 1.85 nanometers, synthesized by a semicontinuous hydrogen arc discharge method, were employed for hydrogen adsorption experiments in their as-prepared and pretreated states. A hydrogen storage capacity of 4.2 weight percent, or a hydrogen to carbon atom ratio of 0.52, was achieved reproducibly at room temperature under a modestly high pressure (about 10 megapascal) for a SWNT sample of about 500 milligram weight that was soaked in hydrochloric acid and then heat-treated in vacuum. Moreover, 78.3 percent of the adsorbed hydrogen (3.3 weight percent) could be released under ambient pressure at room temperature, while the release of the residual stored hydrogen (0.9 weight percent) required some heating of the sample.
Most of the tests that doctors use to diagnose cancer — such as mammography, colonoscopy, and CT scans — are based on imaging. More recently, researchers have also developed molecular diagnostics that can detect specific cancer-associated molecules that circulate in bodily fluids like blood or urine.
MIT engineers have now created a new diagnostic nanoparticle that combines both of these features: It can reveal the presence of cancerous proteins through a urine test, and it functions as an imaging agent, pinpointing the tumor location. In principle, this diagnostic could be used to detect cancer anywhere in the body, including tumors that have metastasized from their original locations.
“This is a really broad sensor intended to respond to both primary tumors and their metastases. It can trigger a urinary signal and also allow us to visualize where the tumors are,” says Sangeeta Bhatia, the John and Dorothy Wilson Professor of Health Sciences and Technology and Electrical Engineering and Computer Science at MIT and a member of MIT’s Koch Institute for Integrative Cancer Research and Institute for Medical Engineering and Science.
