Showing posts with label Nanotech. Show all posts
Showing posts with label Nanotech. Show all posts
Saturday, September 29, 2012
Harvard Researchers Create "Cyborg Flesh"
Posted by YouTube user: BlankTV
According to an article in last month's Harvard Gazette, researchers at the university recently managed to successfully merge human tissues with embedded nanoelectronics, effectively creating what's being described as "cyborg flesh". I prefer the term "Terminator Meat", personally. But I doubt that phrase will catch on, given the scientific community's stubborn refusal to admit it's intention to build cybernetic death machines; not to be confused with Austrian Death Machine (see above). Also, now that I've read it back to myself, I've remembered how easy it is to make any phrase involving the word "meat", into something unintentionally dirty. Still, I think either term is technically correct, so use at your discretion.
Whatever you decide to call it, the tissue in question was created by developing what is essentially a rudimentary artificial autonomic nervous system, in the form of "Macroporous nanowire nanoelectronic scaffolds"; from the Harvard Gazette:
"Beginning with a two-dimensional substrate, researchers laid out a mesh
of organic polymer around nanoscale wires, which serve as the critical
sensing elements. Nanoscale electrodes, which connect the nanowire
elements, were then built within the mesh to enable nanowire transistors
to measure the activity in cells without damaging them. Once completed,
the substrate was dissolved, leaving researchers with a netlike sponge,
or a mesh, that can be folded or rolled into a host of
three-dimensional shapes."
The most immediate use for the nanoscaled network of silicone wires and electrodes designed by the team, according to research leader Charles M. Lieber, is in the pharmaceutical industry, where it could be used to more precisely study how newly developed drugs act in three-dimensional tissues. But the development of even a basic electronic sensory system small enough, not only to be embedded into human tissues without distorting cell structure, but that could potentially be an early precursor to a system capable of being integrated directly into the body's own electrical and sensory system, is a pretty spectacular thing.
"The current methods we have for monitoring or interacting with living systems are limited," said Lieber. "We can use electrodes to measure activity in cells or tissue, but that damages them. With this technology, for the first time, we can work at the same scale as the unit of biological system without interrupting it. Ultimately, this is about merging tissue with electronics in a way that it becomes difficult to determine where the tissue ends and the electronics begin."
Whatever it's intended practical use or current level of functionality, with even the Harvard Gazette itself throwing around words like "cyborg flesh", one can't help but imagine some future iteration of the technology in question, one day finding it's way on and into the human body in some way, shape, or form. Because one of the main hurdles in trying to fully merge mechanical systems into organic ones, is finding a way to integrate artificial control and sensory systems into the body's own biological ones. And while something that advanced is a far cry from the basic, research based functions of the nanoscale silicone network developed for this project, the idea that we live in a world in which "cyborg flesh" is a reality on any scale, is a pretty amazing thing to consider.
Also, our robot-death-cheetahs look cold, and they want skin.
Posted by YouTube user: BostonDynamics
Sunday, February 12, 2012
NASA's Implantable Biocapsule Can Automatically Diagnose and Treat Disease
Every geek comes with his or her own personal obsession with a particular bit of future technology. Weather it's something born purely of the imagination of a sci-fi writer like a light saber, or some speculative bit of real world technology that's seemingly just around the corner, we all have one. Mine, well... one of mine, is the promise of the manipulation of the human body and immune system, through the use of nanotechnology. And while true nanomachines are admittedly still a distant dream, nanotechnology itself is a very real part of our world, and NASA's newly designed, disease treating Biocapsule implant, is a particularly stunning example of that fact.
Designed by Dr. David Loftus, NASA's new Biocapsule is a tiny device built from carbonnanotubes that would be surgically inserted just beneath the patients skin. These Biocapsules would be filled with cells primed to to detect and cure specific ailments, and would do so automatically, by releasing therapeutic molecules (proteins, peptides), via diffusion across the capsule wall. Though designed to treat astronauts during long-term missions -specifically for radiation exposure- these devices could obviously also be adapted to treat any number of illnesses right here on Earth. They could even be used to administer targeted chemotherapy treatments or perhaps take the place of insulin injections, as explained by Dr. Loftus:
"The capsule would contain pancreatic islet cells (from animals) or would contain engineered cells designed to behave like pancreatic islet cells, with both glucose-sensing and insulin secretion function. Patients with low-insulin requirement might benefit from implantation of a single capsule (containing perhaps a million to 10 million cells); patients with higher insulin requirement might require implantation of more than one capsule."
Though it will still likely be another 15-20 years before we can realistically hope to see these capsules put to use on human patients. Unlike so many other speculative advances in technology and medicine, the implants in question actually already exist, and are set to move on to the animal testing phase sometime in the near future. So while it's tempting for me to dismiss headlines promising these devices to be set to " change the future of medicine", as just another bit of wishful thinking that's just too good to be true. From time to time, some amazing thing comes along that isn't based solely on hopeful speculation, and really could have world changing implications. And this -seems anyway- like it might actually be one of those things.
-CAINE-
Source:Gizmodo
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