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Mar 25, 2023

Using chemical exfoliation to produce superconducting tungsten disulfide ink

Posted by in categories: chemistry, computing, quantum physics

A team of chemists, engineers, material scientists and physicists from Princeton University, Rutgers University and the University of Regensburg has developed a chemical exfoliation technique to produce single-molecule-thick tungsten disulfide ink. The group describes their technique in a paper published in the journal Science Advances.

As research continues into the creation of truly useful quantum computers, scientists continue to search for new materials that could support such machines. In this new effort, the research team looked into finding ways to print very cold circuits inside quantum computers using superconducting ink.

The new method involved a material consisting of layers of disulfide and potassium. The researchers exfoliated the material by dunking it into a sulfuric acid solution. This dissolved the potassium and left behind single-molecule layers of tungsten disulfide. The final step involved rinsing the acid and remnants in it, leaving the layers of tungsten suspended in a tub of water. In this state, the researchers found that the layers of tungsten disulfide could be used as a form of ink that could be printed onto various types of surfaces, such as plastic, silicon or glass. This left a one-molecule-thick coating on the material.

Mar 25, 2023

Tiny nanoparticle could have big impact on patients receiving corneal transplants

Posted by in categories: biotech/medical, nanotechnology

Corneal transplants can be the last step to returning clear vision to many patients suffering from eye disease. Each year, approximately 80,000 corneal transplantations take place in the U.S. Worldwide, more than 184,000 corneal transplantation surgeries are performed annually.

However, rejection rates for the corneal grafts can be as high as 10%. This is largely due to poor patient compliance to the medications, which require frequent administrations of topical eyedrops over a long period of time.

This becomes especially acute when patients show signs of early rejection of the transplanted corneas. When this occurs, patients need to apply topical eyedrops hourly to rescue the corneal grafts from failure.

Mar 25, 2023

A cavity leads to a strong interaction between light and matter

Posted by in categories: computing, particle physics, quantum physics

Researchers have succeeded in creating an efficient quantum-mechanical light-matter interface using a microscopic cavity. Within this cavity, a single photon is emitted and absorbed up to 10 times by an artificial atom. This opens up new prospects for quantum technology, report physicists at the University of Basel and Ruhr-University Bochum in the journal Nature.

Quantum physics describes photons as light particles. Achieving an interaction between a and a is a huge challenge due to the tiny size of the atom. However, sending the past the atom several times by means of mirrors significantly increases the probability of an interaction.

In order to generate photons, the researchers use artificial atoms, known as . These semiconductor structures consist of an accumulation of tens of thousands of atoms, but behave much like a single atom: when they are optically excited, their energy state changes and they emit a photon. “However, they have the technological advantage that they can be embedded in a ,” says Dr. Daniel Najer, who conducted the experiment at the Department of Physics at the University of Basel.

Mar 25, 2023

Flying taxi service coming to Chicago using eVTOL aircraft

Posted by in categories: sustainability, transportation

In the latest sign of growing interest in the flying taxi sector, United Airlines and air mobility startup Archer Aviation have announced an upcoming service for hops between downtown Chicago and O’Hare International Airport.

The service will offer a sustainable, low-noise, and cost-competitive alternative to ground transportation for folks traveling to and from the airport, United and Archer said in a release.

Mar 25, 2023

The Personalized Stem Cells That Could One Day Treat Parkinson’s and Heart Failure

Posted by in categories: biotech/medical, chemistry, neuroscience

Could an injection of lab-cultured brain cells, created from a person’s own cells, reverse symptoms of Parkinson’s disease? That’s an idea that Aspen Neuroscience Inc., a startup based in San Diego, plans to test in human trials later this year.

In patients with Parkinson’s, neurons die and lose the ability to make the chemical dopamine, leading to erratic, uncontrollable movements. Aspen Neuroscience will test if the newly injected cells can mature into dopamine producers, stopping the debilitating symptoms of this incurable disease, says Damien McDevitt, the company’s chief executive officer. Tests in animals have shown promise, the company says.

Mar 25, 2023

People And Machines Will Merge Sooner Or Later

Posted by in categories: robotics/AI, singularity

The idea of the “technological singularity” was inspired by how ubiquitous and invasive AI is becoming. As they combine thought and machine, recent advanceme…

Mar 25, 2023

Quantum Computers Vs Supercomputers

Posted by in categories: quantum physics, supercomputing

Supercomputers and quantum computers are potent tools for handling difficult calculations, problem-solving, and data analysis. Although they both have the potential to transform computing technology, their speeds and capacities differ greatly.

Supercomputers quickly process massive volumes of data to provide a single result using a conventional computing strategy with numerous processors. These computers are the most powerful in terms of raw computing speed, but they can only do one task at a time, and Moore’s Law places a cap on how much data they can process (the principle that computer processor speeds double every two years).

Quantum computers, on the other hand, utilize laws of quantum mechanics to process information in ways that regular computers cannot, resulting in vastly higher processing speeds. They can manage several activities at once and take on challenging issues that would take supercomputer months to resolve. Yet, because of their great sensitivity to temperature fluctuations and need for isolation from outside influences, quantum computers require more upkeep than their conventional equivalents.

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Mar 25, 2023

Alzheimer’s first signs may appear in your eyes, study finds

Posted by in categories: biotech/medical, neuroscience

Finding early signs of dementia in the back of the eye may be a way to catch the disease early and start preventive treatment, a study says.

Mar 25, 2023

Today, we lost a visionary

Posted by in category: futurism

Gordon Moore, thank you for everything.

Mar 25, 2023

Highest-Order Electromagnetic Transition Observed

Posted by in category: futurism

Observations deliver evidence of an exotic “sixth-order” electromagnetic transition in the gamma-ray emission of an iron isotope, a finding that could provide new ways to test nuclear models.

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