Paper Water Test: Quick, Cheap, Green
Biosensor ID's Water Quality - Point of Use, Quick and Easy Source: University of Bath UK Photo Breakthrough Water Test University of Bath UK scientists have developed a simple, paper-based test to determine if water is contaminated. It's potentially a simple, low cost way for developing countries to limit the spread of water-born disease. Simple as a Litmus Test It's paper based like a litmus test to measure acid in water. But the new device is breakthrough. It consists of a microbial fuel cell (MFC). It's made by screen-printing biodegradable carbon electrodes onto a single piece of paper. MFC uses natural biology processes of electric bacteria- attached to the carbon electrodes - to generate an electric signal. Don't Drink the Water When the bacteria are exposed to polluted water, there's a change in the electric signals. That's the red alert not to drink. You're warned that the water is contaminated. Lots of Potential T...