Archive for the ‘nanotechnology’ category: Page 2

Sep 15, 2017

The application of nanotechnology to cardiovascular nanomedicine

Posted by in categories: biotech/medical, nanotechnology

Nanostructured systems have the potential to revolutionize both preventive and therapeutic approaches for treating cardiovascular disease. Given the unique physical and chemical properties of nanostructured systems, nanoscience and nanotechnology have recently demonstrated the potential to overcome many of the limitations of cardiovascular medicine through the development of new pharmaceuticals, imaging reagents and modalities, and biomedical devices. A recent review offers an outline of critical issues and emerging developments in cardiac nanotechnology.

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Sep 14, 2017

Nanotechnology experts create first terahertz-speed polarization optical switch

Posted by in categories: electronics, nanotechnology

A Sandia National Laboratories-led team has for the first time used optics rather than electronics to switch a nanometer-thick thin film device from completely dark to completely transparent, or light, at a speed of trillionths of a second.

The team led by principal investigator Igal Brener published a Nature Photonics paper this spring with collaborators at North Carolina State University. The paper describes work on optical information processing, such as switching or light polarization control using light as the control beam, at terahertz speeds, a rate much faster than what is achievable today by electronic means, and a smaller overall device size than other all-optical switching technologies.

Electrons spinning around inside devices like those used in telecommunications equipment have a speed limit due to a slow charging rate and poor heat dissipation, so if significantly faster operation is the goal, electrons might have to give way to photons.

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Sep 14, 2017

A DNA nanorobot is programmed to pick up and sort molecules into predefined regions

Posted by in categories: bioengineering, biotech/medical, nanotechnology, robotics/AI

Imagine a robot that could help you tidy your home: roving about, sorting stray socks into the laundry and dirty dishes into the dishwasher. While such a practical helper may still be the stuff of science fiction, Caltech scientists have developed an autonomous molecular machine that can perform similar tasks—at the nanoscale. This “robot,” made of a single strand of DNA, can autonomously “walk” around a surface, pick up certain molecules and drop them off in designated locations.

The work was done in the laboratory of Lulu Qian, assistant professor of bioengineering. It appears in a paper in the September 15 issue of Science.

Why Nanobots?

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Sep 9, 2017

The carbon nanotube integrated circuit goes three-dimensional

Posted by in categories: computing, nanotechnology

Chip makers have a mantra: smaller, cheaper, and faster. They may now need a new adjective—taller.

R. Mark Wilson

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Sep 7, 2017

Nanomachines can destroy cancer cells in just 60 seconds!

Posted by in categories: biotech/medical, nanotechnology

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Sep 3, 2017

Ray Kurzweil — A Revolutionary Future

Posted by in categories: biotech/medical, chemistry, life extension, nanotechnology, Ray Kurzweil, robotics/AI, singularity, transhumanism

Kurzweil is one of the world’s leading minds on artificial intelligence, technology and futurism. He is the author of five national best-selling books, including “The Singularity is Near” and “How to Create a Mind.”

Raymond “Ray” Kurzweil is an American author, computer scientist, inventor and futurist. Aside from futurology, he is involved in fields such as optical character recognition (OCR), text-to-speech synthesis, speech recognition technology, and electronic keyboard instruments. He has written books on health, artificial intelligence (AI), transhumanism, the technological singularity, and futurism. Kurzweil is a public advocate for the futurist and transhumanist movements, and gives public talks to share his optimistic outlook on life extension technologies and the future of nanotechnology, robotics, and biotechnology.

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Aug 31, 2017

Nanomachines that drill into cancer cells killing them in just 60 seconds developed by scientists

Posted by in categories: biotech/medical, nanotechnology

Nanomachines which can drill into cancer cells, killing them in just 60 seconds, have been developed by scientists.

The tiny spinning molecules are driven by light, and spin so quickly that they can burrow their way through cell linings when activated.

In one test conducted at Durham University the nanomachines took between one and three minutes to break through the outer membrane of prostate cancer cell, killing it instantly.

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Aug 26, 2017

Forget popping a pill, swallow a nanobot

Posted by in categories: biotech/medical, nanotechnology

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Aug 19, 2017

Scientists remotely hacked a brain, controlling body movements

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

Imagine someone remotely controlling your brain, forcing your body’s central processing organ to send messages to your muscles that you didn’t authorize. It’s an incredibly scary thought, but scientists have managed to accomplish this science fiction nightmare for real, albeit on a much small scale, and they were even able to prompt their test subject to run, freeze in place, or even completely lose control over their limbs. Thankfully, the research will be used for good rather than evil… for now.

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The effort, led by physics professor Arnd Pralle, PhD, of the University at Buffalo College of Arts and Sciences, focused on a technique called “magneto-thermal stimulation.” It’s not exactly a simple process — it requires the implantation of specially built DNA strands and nanoparticles which attach to specific neurons — but once the minimally invasive procedure is over, the brain can be remotely controlled via an alternating magnetic field. When those magnetic inputs are applied, the particles heat up, causing the neurons to fire.

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Aug 19, 2017

A nanobot picks up a sperm by the tail and inseminates an egg with it, by the Institute for Integrative Nanosciences in Germany

Posted by in category: nanotechnology

Nanobot picks up sperm by the tail and delivers it to egg.

Post with 4799 votes and 46696 views. Tagged with science and tech; Shared by hukopukolukodoso.

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