Nanotechnology – Lifeboat News: The Blog

Gecko-inspired nanofiber ‘carpet’ could lead to superpower coatings

Posted by Genevieve Klien in engineering, nanotechnology

Dec 7
2018

A new way to make arrays of nanofibers that gets its inspiration from polar bear fur, lotus leaves, and gecko feet could lead to coatings that are sticky, repellant, insulating, or light emitting.

“This is so removed from anything I’ve ever seen that I would have thought it was impossible,” says Joerg Lahann, a professor of chemical engineering at the University of Michigan and senior author of the paper, which appears in Science.

Polar bear hairs are structured to let light in while keeping heat from escaping. Water-repelling lotus leaves are coated with arrays of microscopic waxy tubules. And the nanoscale hairs on the bottoms of gravity-defying gecko feet get so close to other surfaces that atomic forces of attraction come into play.

Billions of nanoplastics accumulate in marine organisms within six hours

Posted by Xavier Rosseel in biotech/medical, nanotechnology

Dec 3
2018

A ground-breaking study has shown it takes a matter of hours for billions of minute plastic nanoparticles to become embedded throughout the major organs of a marine organism.

The research, led by the University of Plymouth, examined the uptake of nanoparticles by a commercially important mollusc, the great scallop (Pecten maximus).

After six hours exposure in the laboratory, billions of particles measuring 250nm (around 0.00025mm) had accumulated within the scallop’s intestines.

Breaking Through to Next Levels of Technology

Posted by Klaus Baldauf in nanotechnology, singularity

Nov 28
2018

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

Posted by Genevieve Klien in nanotechnology, physics | 2 Comments on Physicists demonstrate a new device for manipulating and moving tiny objects with light

Nov 27
2018

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.

New Nanobots Kill Cancerous Tumors

Posted by Genevieve Klien in biotech/medical, nanotechnology

Nov 25
2018

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

Lasers may help experts understand cancer

Posted by Genevieve Klien in biotech/medical, nanotechnology, neuroscience

Nov 20
2018

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.

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

Posted by Genevieve Klien in biotech/medical, nanotechnology

Nov 16
2018

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.

Metallic nanoparticles light up another path towards eco-friendly catalysts

Posted by Genevieve Klien in nanotechnology, particle physics

Nov 16
2018

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.

Laser-activated nanotube skin shows where the strain is

Posted by Genevieve Klien in nanotechnology, transportation

Nov 16
2018

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.

More realistic research needed on substances that enter the environment

Posted by Xavier Rosseel in biotech/medical, food, nanotechnology

Nov 15
2018

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.’