Origami is the Japanese art of paper folding.
It can be used to create beautiful birds, frogs and other small sculptures.
Now a Binghamton University engineer says the technique can be applied to building batteries,
too. “Sean” Choi developed an inexpensive,
bacteria-powered battery made from paper. The battery generates power from microbial
respiration, delivering enough energy to run a paper-based biosensor with nothing more
than a drop of bacteria-containing liquid. Dirty water has a lot of organic matter. Any
type of organic material can be the source of bacteria for the bacterial metabolism
This method should be especially useful to anyone working in remote areas with limited
resources. Because paper is inexpensive and readily available, many experts working on
disease control and prevention have adopted it as a key material in creating diagnostic
tools for the developing world. Paper is cheap and it’s biodegradable, And
we don’t need external pumps or syringes because paper can suck up a solution using
capillary force. While paper-based biosensors have shown promise
in this area, the existing technology must be paired with hand-held devices for analysis.
The goal is to create technology that allows those sensors to power themselves
This newly developed paper-based battery would create enough energy in microwatts to run
the biosensor. This paper battery folds into a square the
size of a matchbook. It uses an inexpensive air-breathing cathode created with nickel
sprayed onto one side of ordinary office paper. The anode is screen printed with carbon paints,
creating a hydrophilic zone with wax boundaries. Total cost of this potentially game-changing
device is Five cents only