Preyro robot experiment could enable robots to better mimic animals, kill us all
by Darren Murph 
posted Jun 1st 2009 at 6:42AM
biology posts
World's smallest periscope provides multi-dimensional view of cells
by Darren Murph posted Mar 2nd 2009 at 9:26AM
We never thought we'd say this, but the standard microscope's day may be coming to an end. Okay, so maybe that's a stretch, but a new device conjured up by scientists at Vanderbilt University sure could stand in as a suitable and deserving replacement. In what's being described as the world's smallest version of the periscope, the so-called mirrored pyramidal wells are being used to allow researchers to see several sides of cells simultaneously. The pyramidal-shaped cavities are molded into silicon "whose interior surfaces are coated with a reflective layer of gold or platinum," and when a cell is placed inside, it gives Earthlings a magical multi-dimensional view. It's said that this technology is actually stupendously inexpensive compared to other methods of 3D microscopy, and according to Vandy's own Ron Reiserer, this "could easily become as ubiquitous as the microscope slide." Them's fightin' words, no?[Via Physorg]
Researchers looking to print living cells in 3D
by Darren Murph posted Oct 15th 2007 at 8:10AM
Inkjet printers have long been used to print out all sorts of unusual goods, and while we've heard of scientists utilizing said technology to print stem cells, engineers are now exploring ways "to print 3D structures of cells." According to Paul Calvert, a materials scientist at the University of Massachusetts Dartmouth, printing out these cells in three dimensions "is like going from a black-and-white to a full-color [TV]," and he also states that moving the process forward could help "unravel the mysteries of cell-to-cell communication and, perhaps in the distant future, manufacture human organs from scratch." Notably, it was even suggested that the technique could potentially be used to "print out miniature organs for medical tests such as drug toxicity," and in an ideal world, to crank out "implantable human organs on demand."Leaping robots could embark on interplanetary exploration
by Darren Murph posted Jul 7th 2007 at 10:37AM
Oculus' uber-oxidised water hastens healing
by Darren Murph posted May 25th 2007 at 10:32AM
We've seen self-assembling chips, self-healing panels, and even regenerative houses hit the drawing board before, but California-based Oculus has created a liquid that can reportedly quicken the healing process when recovering from wounds. The firm's Dermacyn topical wound care is an "oxychlorine formulation" using the company's own Microcyn concoction, which is made by "taking purified water and passing it through a semi-permeable sodium chloride membrane to produce the oxychlorine ions," and essentially contains "electrically charged molecules which pierce the cell walls of free-living microbes." The formula is reportedly successful in killing off virii, bacteria, and fungi, and currently, the company is enrolling patients in a Phase II trial to evaluate its effectiveness in treating diabetic foot infections. The company is hoping to start said trial in Q3 of this year, and if all goes well, wants to execute a pair of larger Phase III trials shortly thereafter.[Via BBC]
Foster's to aid in first "beer battery" fuel cell project
by Darren Murph posted May 3rd 2007 at 8:16AM
While it's certainly debatable whether beer is to thank for the explosion in the consumer electronics industry, it looks like we'll be thanking the beverage without hesitation for making our world a little greener. Oddly enough, "scientists and Australian beer maker Foster's are teaming up to generate clean energy from brewery waste water by using sugar-consuming bacteria," and better yet, the University of Queensland will host a microbial fuel cell at a Foster's Group brewery near Brisbane. Essentially, the cell will consume brewery wastes such as sugar, starch, and alcohol, while producing clean electricity by harnessing the energy released from the organic materials coming in. The device is expected to produce two-kilowatts of power, and while hopes are to bring the technology to other breweries and wineries around the country, this iteration should crank up sometime in September.[Via Physorg, thanks Michael T.]
neuroArm gives surgeons extra dexterity, sense of touch
by Darren Murph posted Apr 19th 2007 at 4:30AM
Compubeaver case mod: the PC-stuffed beaver
by Darren Murph posted Apr 13th 2007 at 6:55AM
[Via Wired]
USC researcher crafting silicon brain cells
by Darren Murph posted Apr 7th 2007 at 5:18AM
C'mon, linking actual brain cells to a silicon chip might sound a bit sensational at first, but considering the work that's already been done on replacement retinas and human brains, Ted Berger's recently-hyped work is pretty much right on time. Essentially, the USC researcher has spent the past decade or so "engineering a brain implant that can re-create thoughts," and moreover, certain implementations could even "remedy everything from Alzheimer's to absent-mindedness." We know, thoughts of instantaneous brilliance are running wild through your mind, and considering that Ted (and his highly-regarded team) have figured out how to link a silicon chip to actual brain cells and elicit responses, the possibilities are indeed nearly endless. Put simply, Berger hopes that brain disorders that are currently battled with intensive drug regimens with less-than-exciting side effects can be solved "by simply implanting a few computerized brain cells." Of course, the team admits that it's "years, maybe decades" away from hospital-approved apparatuses, but if you're interested in reading (a lot) more about "the future of brain science," grab your specs, prepare your paltry short term memory, and hit the read link for all the insight.[Via MedGadget]
Radiofrequency treatment curbs asthma attacks
by Darren Murph posted Mar 30th 2007 at 4:02AM
Sure, there's quite a few way to circumvent the effects of asthma, but a new development coming out of McMaster University in Canada suggests that radiofrequency treatment can actually curb the amount of asthma attacks suffered by asthmatics. The device, which "uses radio waves to heat the muscle lining of patients' airways," is used to administer a trio of sessions, and while the actual root cause is still unknown, it seems to cause a reduction in the smooth muscle lining the airways, subsequently making breathing less of a chore. The probe isn't the most comfortable, however, as it must first make its way through your nose or mouth in order to reach the lung airways, after which the tip is "heated using radio waves." The procedure is known as bronchial thermoplasty, and while the funding company (Asthmatx) has yet to elicit a thumbs-up from the FDA, it could certainly become a viable alternative for asthma sufferers. It's about time these free-flying transmissions made up for the harm they've caused, eh?Virginia Tech researcher crafting amoeba-inspired robotic helpers
by Darren Murph posted Mar 27th 2007 at 8:10AM
Although we've seen failed attempts at turning amoebas into helpers, Virginia Tech's Dennis Hong is hoping that his creations will see a bit more success. Using funding from the prestigious CAREER grant, the researcher is designing a Whole Skin Locomotion (WSL) mechanism "for robots to work on much the same principle as the pseudopod, or cytoplasmic foot, of the amoeba." The device's primary goal seems to hover around the world of search-and-rescue, as the diminutive crawler can maneuver in and around tight spaces without regard for its own health, and of course, a nearly-microscopic bot just can't be developed without hinting at one day ending up somewhere inside your body. Notably, it appears that Mr. Hong isn't satisfied with just building a prototype, as he's already got plans for implementing the technology into projects such as IMPASS (Intelligent Mobility Platform with Active Spoke System, DARwin (Dynamic Anthropomorphic Robot with Intelligence), and STriDER (Self-Excited Tripedal Dynamic Experimental Robot).[Via MedGadget]
Magnetic beads could peruse your innards
by Darren Murph posted Mar 25th 2007 at 1:30AM
We've got a sneaking suspicion that the whole idea of "minimally invasive" procedures will soon become a matter of perspective, as Canadian researchers are dreaming up yet another method of perusing parts of your innards you never thought possible. If the brilliant minds at École Polytechnique Montréal have their way, microscopic medical beads could eventually be used to inspect, pass medicines, and take a joyride through even the smallest tubes in your body. Already being tested on live pig (and showing outstanding results, too), the idea is to utilize MRI machines to magnetically push objects through the bloodstream, which could reach locales that modern day surgeries can't. Interestingly enough, this procedure has far exceeded the brainstorming stage, and if you're one of those strong-stomached type, be sure to hit the read link for a couple of live action videos of the process.NC State researchers devise new ways to invade your bloodstream
by Darren Murph posted Mar 17th 2007 at 3:54AM
While schools in the ACC are certainly making noise on the hardwood, it seems that the Atlantic Coast Conference is also interested in shoving microbots all around your innards. Just days after a team from Georgia Tech envisioned a new internal method for monitoring blood pressure, research conducted at NC State is hoping to cram even more robotic creatures into deep, dark places within your body. A team led by Orlin Velev has discovered that "a simple electronic diode" could spark a new form of propulsion which could power robots and other diminutive devices from a distance. By exploiting "a phenomenon known as electro-osmosis," the diodes can push microscopic material through internal fluids "at speeds of several millimeters per second," which could allow cameras and medicines to reach critical locales that are presently isolated. Of course, there's still a good bit of work to be done, as the prototype device still has become substantially smaller before it will even fit in most of the tiny tubes within your skin, but it's looking more and more like we'll have nursebots shoving spinoffs of themselves into our beings before too long.[Via NewScientistTech]
Robotic tuatara fools males, partakes in social dominance study
by Darren Murph posted Mar 1st 2007 at 9:35AM
Although Wowwee's farm of robotic animals are quite the playful bunch, they aren't exactly prime targets for participating in a biological study of how animals interact in the wild, but Jennifer Moore from Victoria's School of Biological Science is aiming to use a faux tuatara to be the focal point of a new study. Modeled after a highly-regarded and recently deceased tuatara named Oliver, the new creature will purportedly be mingling with others of its kind in order to give a first-hand view on "social dominance and aggression in wild tuatara." Crafted by the Weta Workshop, Robotic Oliver will be used for the first time next month on the tuatara capital of the world, Stephens Island, in order to carefully inspect male mating habits in an effort to "significantly enhance conservation efforts." Of course, utilizing robotic clones for the betterment of a species seems like a brilliant idea, but we should probably all join in unison and hope this same stunt isn't pulled on the human population.[Via RobotGossip]
Protein-coated discs could enable 50TB capacities
by Evan Blass posted Jul 12th 2006 at 9:55AM
We know that it shouldn't come as a shock anymore when researchers announce new storage technologies that promise to hold tantalizingly large amounts of data, but we were still pretty stoked to learn that a recent breakthrough at Harvard Medical School may eventually lead to DVD-size discs whose capacities approach an eye-popping 50TB. Unlike traditional optical or magnetic solutions, the disc developed by Professor V Renugopalakrishnan and his colleagues is coated with thousands of light-activated proteins called bacteriorhodopsin which are found in the membrane of a particular salt marsh microbe -- and which temporarily convert to a series of intermediate molecules when exposed to sunlight. That property allows the proteins to act as individual bits in a binary system, but since they have a tendency to return to their grounded state after mere hours or days, Renugopalakrishnan and his team modified the requisite microbes' DNA to produce proteins capable of maintaining that intermediary state for several years. Unfortunately we won't see this technology come to market anytime soon, and even when it does, 50TB capacities will still be a ways off, so it looks like we'll have to settle for those disappointing 200GB Blu-ray discs for the foreseeable future.[Via Gotakon]
