Scientists from the University of California Los Angeles have come up with a device that can put a cellular phone to use fighting food-borne illness like e coli. The device, which is only a prototype, uses LED and ultraviolet lights to detect E. coli bacteria.
One of the most common food-borne illnesses is an infection caused by the Escherichia Coli bacteria, commonly called E. coli, the bulk of which comes from the E.coli O157:H7 strain. According to the Centers for Disease Control, this strain, along with some other strains of E. coli, produces the shiga toxin, which is what makes people sick when they get infected by shiga-producing strains of the bacteria. E. coli outbreaks can be fatal in some cases. Most people never know they have it because the symptoms, such as nasuea, diarrhea and vomiting, can be attributed to just about anything including a visit from one’s in-laws. However, because of the danger, one needs to do all they can to ensure they don’t eat contaminated food, and it turns out that some scientists from UCLA have developed an accessory for that.
Ordinarily, one needs a laboratory in order to detect E. coli, but some scientists from UCLA, according to the Daily Mail, have invented a device that clips on to the back of a cellular phone or on top of the phone’s camera. The device has on-board batteries that power it. It works by dripping liquid samples of whatever the user wishes to test for E. coli, which are pumped into tiny glass tubes, called capillaries, with LED lights at one end and a solution emulsified with quantum-dot E. coli antibodies. Quantum dots, put as simply, are tiny semi-conductors; if E. coli is detected in the sample, it conducts currents to the LEDs, lighting them up. Then, according to the abstract on UCLA’s website, a second lens housed in the device, which fits between the capillaries and the mobile phone camera, magnifies the image so a picture can be taken by the phone’s camera.
The device was only recently reported in Analyst, a journal of the Royal Society of Chemistry. That said, according to L.A. Weekly, it’s only a proof-of-concept; it isn’t known if it is close to or even will make it into production. That said, similar devices such as CellScope, according to Popular Science, have been developed. CellScope is basically a battery-powered microscope which similarly attaches to the back of a cell phone, over the camera, and images are taken and sent using the phone and camera. It has obvious use as a diagnostic tool and has already undergone some field testing in Africa.
Popular Science: http://www.popsci.com/bown/2008/innovator/cell-scope
Centers for Disease Control: http://www.cdc.gov/ecoli/general/index.html/
If you are looking for the best iPhone developers we have some helpful information about the iPhone application development process that you may want to read.
If you are looking to conduct business on the cutting edge of technology you are definitely going to want to read more about how our Android app developers can make it happen.
Having an app in the market places is just not enough. Many times those apps need somewhere to send traffic. Your mobile web app strategy is key so don't miss out on this valuable information.