Scientists MacGyvered a Blu-Ray Player to Test for Salmonella
Mar 11, 2014 10:49
A team of chemists from Spain found a new way to use a regular old Blu-Ray player - they turned it into a cheap and functional medical device to help test for salmonella.
The scientists replaced the player's data board with one that is custom to read the reflectivity of the disk instead of the microscopic pits that hold the movie data. They prepared regular Blu-Ray discs by attaching btis of protein called probes and then covered it in a solution containing pathogens.
After rinsing the solution away, the pathogens remained stuck to the probes and the laser from the player was able to detect it.
While the method is not quite as accurate as using actual medical equipment, this MacGyver hack works. It means that poor communities that can't afford full fledged screening devices can spend very little to hack an entertainment device into a medical one.
As PBS's Matt Zastrow explains, Blu-Ray discs can hold more samples because they're extremely hydrophobic, meaning the water bunches up tightly on the surface. Its lasers are also capable of focusing on a much smaller area compared to a CD player's laser.
Ceres is designed around a Classic Sound, single tube architecture. The Dual-Triode tube amplifies the incoming signal which is then routed to the Class-A Solid State buffer to provide the proper power to drive a wide variety of headphones. User selectable attenuation and output impedance insure the best sound possible. Read more
How does going home to a clean and cozy house make you feel? After a long day and all the stress at work, looking forward to an orderly house with your warm couch while sipping wine or coffee, and eating your favorite food definitely sounds and feels like heaven. Read more
Success in recovering VAT can be achieved with accurate knowledge and practice. The process is complex and necessitates major investments in resources. Due to improper handling of the recovery process, many companies miss out on major savings. It’s essential to understand the areas, conditions and possible methods for recovery because VAT rules change constantly. Read more