B-SMART' July'16
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Injections can be a source of disease<br />
transmission, particularly when needles are<br />
re-used and used incorrectly.<br />
After the tattoo is applied to the patient, a<br />
"very mild" electrical current is also applied<br />
to their skin. This causes sodium ions in the<br />
fluid between their skin cells to migrate<br />
toward the electrodes. Those ions carry<br />
glucose molecules from the fluid with them.<br />
Using a built-in sensor, the tattoo then<br />
measures the strength of the electrical<br />
charge produced by that glucose. As a<br />
result, it's able to ascertain the glucose<br />
levels in the patient's bloodstream.<br />
Although the tattoo currently doesn't<br />
provide a numerical readout of those levels,<br />
a separate device is being developed for<br />
that very purpose. The team is also working<br />
on making the tattoos more durable, as<br />
they currently last for about a day once<br />
applied to the skin – fortunately, they're<br />
very inexpensive.<br />
J.Tara,<br />
III Yr, EEE<br />
Scientific Street Lamps to prevent<br />
Dengue Fever<br />
Dengue fever has become widespread in<br />
the tropical world, causing as many as 390<br />
million infections per year in 128 different<br />
countries. In order to eradicate this a street<br />
lamp, called the Eco-Greenergy outdoor<br />
lighting system.<br />
This is meant to bring better light sources to<br />
the cities and remote communities while<br />
also fighting mosquito-borne disease.<br />
It consists of an LED street lamp that<br />
produces low levels of carbon dioxide to<br />
mimic odors associated with humans,<br />
attracting the insects. The level of carbon<br />
dioxide emitted by the light is kept low to<br />
minimize emissions, but is still very<br />
attractive to mosquitoes. Mosquitoes enter<br />
a trap through windows on the top of the<br />
lamp, and are pulled into a net and kept<br />
there by a suction fan. The light functions<br />
entirely on wind and solar energy and is<br />
self-sustaining, meaning it can supply basic<br />
electricity even in very remote areas. The<br />
battery, electrical wiring, and controller are also<br />
installed on the top of the light pole, so that the<br />
light can even continue to function during<br />
floods.<br />
“Nothing is impossible, the word itself says 'I'm possible! “ - Audrey Hepburn 15
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