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Archive for the ‘nanotechnology’ category: Page 180

Nov 28, 2018

Breaking Through to Next Levels of Technology

Posted by in categories: nanotechnology, singularity

There have been some who have complained about the seeming lack of acceleration or slower than some have expected development of societal technology.

Richard Jones talks about lack of specific progress to diamondoid molecular nanotechnology or the appearance that we might not be on track to a technological singularity.

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Nov 27, 2018

Physicists demonstrate a new device for manipulating and moving tiny objects with light

Posted by in categories: nanotechnology, physics

When you shine a beam of light on your hand, you don’t feel much, except for a little bit of heat generated by the beam. When you shine that same light into a world that is measured on the nano- or micro scale, the light becomes a powerful manipulating tool that you can use to move objects around – trapped securely in the light.

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Nov 25, 2018

New Nanobots Kill Cancerous Tumors

Posted by in categories: biotech/medical, nanotechnology

In animal models, the nanobots caused damage to the tissue of the tumor within 24 hours of treatment.

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Nov 20, 2018

Lasers may help experts understand cancer

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

Scientists in Fife are investigating if tiny lasers could be used to better understand diseases such as cancer.

Using nano-technology, the St Andrews University experts created lasers small enough to fit inside live cells which can then be tracked.

With a diameter of a thousandth of a millimetre, the lasers can be inserted into neurons or immune cells.

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Nov 16, 2018

Peptide coatings boost iron oxide-based particles for diagnostic magnetic resonance imaging

Posted by in categories: biotech/medical, nanotechnology

Cancer will become easier to detect and diagnose early using magnetic resonance imaging (MRI) thanks to A*STAR researchers who have engineered biocompatible iron oxide nanoparticle contrast agents¹.

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Nov 16, 2018

Metallic nanoparticles light up another path towards eco-friendly catalysts

Posted by in categories: nanotechnology, particle physics

Scientists at Tokyo Institute of Technology produced subnano-sized metallic particles that are as much as 50 times more effective than well-known Au-Pd bimetallic nanocatalysts.

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Nov 16, 2018

Laser-activated nanotube skin shows where the strain is

Posted by in categories: nanotechnology, transportation

Whether they’re in airplane wings, bridges or other critical structures, cracks can cause catastrophic failure before they’re large enough to be noticed by the human eye. A strain-sensing “skin” applied to such objects could help, though, by lighting up when exposed to laser light.

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Nov 15, 2018

More realistic research needed on substances that enter the environment

Posted by in categories: biotech/medical, food, nanotechnology

Chemical substances and nanomaterials are processed on a massive scale in diverse products, while their risks have not been properly assessed. Time and again synthesised substances have been shown to pollute the environment more than lab tests predicted. This is the warning given by Professor of Ecotoxicology Martina Vijver from Leiden University in her inaugural lecture on 16 November.

Laboratory tests are inadequate, according to Vijver, because they do not imitate a complete ecosystem. In her inaugural lecture she will discuss in greater detail two examples of substances where more realistic research is needed: agricultural toxins and nanoparticles. ‘But the same can be said for many other groups of substances, such as antibiotics, plasticizers and GenX.’

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Nov 14, 2018

Detecting light in a different dimension

Posted by in categories: materials, nanotechnology

“We did not expect to see such a dramatic improvement just by changing the morphology of the polymer,” said co-corresponding author Mircea Cotlet, a materials scientist in the CFN Soft and Bio Nanomaterials Group.

The scientists believe that there are two explanations behind their observations.

“At a certain polymer concentration, the nanowires have dimensions comparable to the wavelength of light,” said Li. “This size similarity has the effect of increasing light scattering and absorption. In addition, crystallization of P3HT molecules within the nanowires provides more charge carriers to transfer electricity to the layer.”

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Nov 10, 2018

Nano-scale process may speed arrival of cheaper hi-tech products

Posted by in categories: energy, nanotechnology

An inexpensive way to make products incorporating nanoparticles—such as high-performance energy devices or sophisticated diagnostic tests—has been developed by researchers.

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