Scientists say they have been able to successfully print new eye cells that could be used to treat sight loss. The proof-of-principle work in the journal Biofabrication was carried out using animal cells.
The Cambridge University team says it paves the way for grow-your-own therapies for people with damage to the light-sensitive layer of tissue at back of the eye - the retina. More tests are needed before human trials can begin.
Co-authors of the study Prof Keith Martin and Dr Barbara Lorber, from the John van Geest Centre for Brain Repair at the University of Cambridge, said: "The loss of nerve cells in the retina is a feature of many blinding eye diseases. The retina is an exquisitely organised structure where the precise arrangement of cells in relation to one another is critical for effective visual function.
"Our study has shown, for the first time, that cells derived from the mature central nervous system, the eye, can be printed using a piezoelectric inkjet printer. Although our results are preliminary and much more work is still required, the aim is to develop this technology for use in retinal repair in the future."
They now plan to attempt to print other types of retinal cells, including the light-sensitive photoreceptors - rods and cones.
Scientists have already been able to reverse blindness in mice using stem cell transplants. And there is promising work into electronic retina implants implants in patients.
Clara Eaglen, of the RNIB, said: "This is a step in the right direction as the retina is often affected in many of the common eye conditions, causing loss of central vision which stops people watching TV and seeing the faces of loved ones."
If you’re reading this, you’re likely bathed in several channels of cell phone radiation at once. But while we can spot cell phone towers and antennae, the waves themselves remain invisible. Following up on a project to visualize what Wi-Fi might look like in cities, artist-researcher Nickolay Lamm has imagined what cell phone radiation would look like if emitted as waves of light.
Lamm worked with eight academics and engineers to verify that the images we’re looking at are accurate representations of cell phone radiation. Like radio, cell phones rely on radio frequency waves, which emit low-energy radiation. Unlike ionizing radiation--released by higher-energy gamma rays, x-rays, and ultraviolet rays--exposure to cell phones’ non-ionizing radiation has not been proven to cause serious damage to living tissue
Google is a more powerful tool than most people realize. You can get much more refined searches with Google's built-in tools, advanced operators, and third-party extensions. You can also use it for some pretty cool stuff if you know the right tricks.
Mark Miodownik: The touch-sensitive technology used in smartphones is helping to create a revolution in artificial limbs (RT @guardianscience: The technology that puts the human touch into prostheses http://t.co/k0KGuVMIeB)...
...Did you know that color accounts for 85% of the reason why you purchased a specific product? Or that full-colored ads in magazines are recognized 26% more than black and white ads?
The psychological elements go even deeper when you look at the specific meanings of colors. For example, if you use the color blue on your products, it will give your customers a calming effect…while black, on the other hand, gives your customers a sense of exclusivity.
So, the real question that comes to mind is: how should you use color within your marketing?...
If you're planning on starting a blog, there's no shortage of reference material here at MakeUseOf -- we have an entire manual dedicated teaching you the ins and outs of Wordpress, and we've even compared two popular blogging platforms then laid...
It’s likely the world in the not-so-distant future will be increasingly populated by computerized people like Amal Graafstra.
The 37-year-old doesn’t need a key or password to get into his car, home or computer. He’s programmed them to unlock at the mere wave of his hands, which are implanted with radio frequency identification tags. The rice-size gadgets work so well, the Seattle resident says, he’s sold similar ones to more than 500 customers through his company Dangerous Things.
The move to outfit people with electronic devices that can be swallowed, implanted in their bodies or attached to their skin via “smart tattoos” could revolutionize health care and change the way people interact with devices and one another. Critics call the trend intrusive, even sacrilegious. But others say it ultimately will make life better for everybody. Some researchers and executives envision a day when devices placed in people will enable them to control computers, prosthetic devices and many other things solely with their thoughts.
“In the next 10 to 20 years we will see rapid development in bioengineered and man-machine interfaces,” predicted Graafstra, who wrote a book about the technology, adding that the trend is going to “push the boundaries of what it means to be human.”
Not getting enough sleep will take a toll on your health and job performance. Robert Oexman, director of the Sleep to Live Institute, tells Business Insider that a "lack of sleep can manifest itself in erratic behavior, short tempers, and bad decision-making."
Workers who are sleep-deprived are more likely to have difficulty remembering details and have a harder time dealing with high-stress situations. And those who regularly skimp on sleep -- getting just one to two hours less than the hours you need -- increase their risk of infection, weight gain, diabetes, and heart disease, says Oexman.
To help you get the rest you need, the author has compiled five easy tricks to fall asleep faster:
There is nothing more powerful than employees’ passion and initiative to make customers happy to spark long-lasting word of mouth about your brand. Your company is truly only as great as the people who embody the mission of your organisation, those who go above and beyond to see the company succeed and to make your customers happy. The brands that understand this fundamental principle empower their employees.