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Archive for the ‘nanotechnology’ category

Apr 8, 2020

Cell muscle movements visualised for first time

Posted by in categories: materials, nanotechnology

The movements of cell muscles in the form of tiny filaments of proteins have been visualised at unprecedented detail by University of Warwick scientists.

In a study published in the Biophysical Journal, scientists from the University’s Department of Physics and Warwick Medical School have used a new microscopy technique to analyse the molecular motors inside that allow them to move and reshape themselves, potentially providing new insights that could inform the development of new smart materials.

Myosin is a protein that forms the motor filaments that give a cell stability and are involved in remodelling the actin cortex inside the cell. The actin cortex is much like the backbone of the cell and gives it its shape, while the myosin filaments are similar to muscles. By ‘flexing’, they enable the cell to exert forces outside of it and to propagate.

Apr 8, 2020

Researchers use nanotechnology to develop new treatment for endometriosis

Posted by in category: nanotechnology

Scientists have developed a precise, nanotechnology-based treatment to alleviate the pain and fertility problems associated with endometriosis, a common gynecological condition in women of childbearing age.

Research led by Oleh Taratula of the Oregon State University College of Pharmacy and Ov Slayden of the Oregon National Primate Research Center at Oregon Health & Science University used photo-responsive nanoparticles loaded with dye to find and remove the lesions associated with the disorder.

Findings were published today in the journal Small.

Apr 7, 2020

New Nanocrystal Transforms Regular Glasses Into Night Vision Specs

Posted by in category: nanotechnology

:oooo.


A single nanoparticle is just 300 nanometers wide, but an array of them create what’s called a metamaterial with superior capabilities. Researchers used this tech to create better night vision goggles powered by nanocrystals, which can convert photons of infrared light into visible light.

Apr 7, 2020

Bloodshot: Based on the bestselling comic book

Posted by in categories: entertainment, nanotechnology

Vin Diesel stars as Ray Garrison, a soldier recently killed in action and brought back to life as the superhero Bloodshot by the RST corporation. With an army of nanotechnology in his veins, he’s an unstoppable force –stronger than ever and able to heal instantly. But in controlling his body, the company has sway over his mind and memories, too. Now, Ray doesn’t know what’s real and what’s not – but he’s on a mission to find out.

Apr 6, 2020

Nanotechnology for organ-tunable gene editing

Posted by in categories: bioengineering, biotech/medical, genetics, nanotechnology

Lipid nanoparticles containing genetic drugs can be bioengineered to tune their biodistribution and induce organ-specific gene regulation.

Apr 5, 2020

Extremely small magnetic nanostructures with invisibility cloak imaged

Posted by in categories: computing, nanotechnology, particle physics, space

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In novel concepts of magnetic data storage, it is intended to send small magnetic bits back and forth in a chip structure, store them densely packed and read them out later. The magnetic stray field generates problems when trying to generate particularly tiny bits. Now, researchers at the Max Born Institute (MBI), the Massachusetts Institute of Technology (MIT) and DESY were able to put an “invisibility cloak” over the magnetic structures. In this fashion, the magnetic stray field can be reduced in a fashion allowing for small yet mobile bits. The results were published in Nature Nanotechnology.

For physicists, magnetism is intimately coupled to rotating motion of electrons in atoms. Orbiting around the atomic nucleus as well as around their own axis, electrons generate the magnetic moment of the atom. The magnetic stray field associated with that magnetic moment is the property we know from e.g. a bar magnet we use to fix notes on pinboard. It is also the magnetic stray field that is used to read the information from a magnetic hard disk drive. In today’s hard disks, a single magnetic bit has a size of about 15 x 45 nanometer, about 1,000,000,000,000 of those would fit on a stamp.

One vision for a novel concept to store data magnetically is to send the magnetic bits back and forth in a memory chip via current pulses, in order to store them at a suitable place in the chip and retrieve them later. Here, the magnetic stray field is a bit of a curse, as it prevents that the bits can be made smaller for even denser packing of the information. On the other hand, the magnetic moment underlying the stray field is required to be able to move the structures around.

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Apr 5, 2020

Creating Superman (and woman): Who benefits from human enhancement?

Posted by in categories: biotech/medical, cyborgs, genetics, life extension, nanotechnology, neuroscience, transhumanism

Research involving bowhead whales has suggested that it may one day be possible to extend the human lifespan to 200 years.


From the demigods of Greek mythology to the superheroes of 20th century comic books, we’ve been intrigued by the idea of human enhancement for quite a while, but we’ve also worried about negative consequences. Both in the Greek myths and modern comics and television, each enhanced human has been flawed in some way.

Continue reading “Creating Superman (and woman): Who benefits from human enhancement?” »

Apr 4, 2020

Quantum computing at the nanoscale

Posted by in categories: computing, nanotechnology, quantum physics

It’s been said that quantum computing will be like going from candlelight to electric light in the way it will transform how we live. Quite a picture, but what exactly is quantum computing?

For the answer to that question, we’ll have to visit a scale of existence so small that the usual rules of physics are warped, stretched and broken, and there are few layperson terms to lean on. Strap yourself in.

Luckily, we have a world-leading researcher in quantum computing, Professor David Reilly, to guide us. “Most modern technologies are largely based on electromagnetism and Newtonian mechanics,” says Reilly in a meeting room at the University’s Nano Hub. “Quantum computing taps into an enormous new area of nano physics that we haven’t harnessed yet.”

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Apr 2, 2020

Toward ‘perfect’ quantum metamaterial: Study uses trapped atoms in an artificial crystal of light

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

Circa 2016


Scientists have devised a way to build a “quantum metamaterial”—an engineered material with exotic properties not found in nature—using ultracold atoms trapped in an artificial crystal composed of light. The theoretical work represents a step toward manipulating atoms to transmit information, perform complex simulations or function as powerful sensors.

The research team, led by scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley, proposes the use of an accordion-like atomic framework, or “lattice” structure, made with laser light to trap atoms in regularly spaced nanoscale pockets. Such a light-based structure, which has patterned features that in some ways resemble those of a crystal, is essentially a “perfect” structure—free of the typical defects found in natural materials.

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Mar 31, 2020

One Step Closer to a Batsuit for Soldiers

Posted by in categories: military, nanotechnology, weapons

O„.o carbon nanotube suit.


Researchers announce new military funding in search for body armor skin that could be 300 percent stronger than anything we’ve seen before.

In Christopher Nolan’s Batman Begins, there’s a scene where inventor Lucius Fox, played by Morgan Freeman, explains that Wayne Enterprises has created a prototype body armor for the U.S. infantry that’s as light as Kevlar but bullet- and knife-proof. Bruce Wayne asks why it never went into production. “The bean counters figured a soldier’s life wasn’t worth the 300 grand,” Fox replies.

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