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Current issue

ELEKTRO 2/2020 was released on February 12th 2020. Its digital version will be available on March 12th 2020.

Topic: Electrical apparatus, Internet of Things; Medical technologies

Main Article
Monitoring vacancy of an intelligent building

SVĚTLO (Light) 1/2020 was released on February 3th 2020. Its digital version will be available on March 3th 2020.

Fairs and exhibitions
Invitation for Light+Building 2020 – attendant programme
Prolicht+Sound fair celebrates the 25th birthday
FOR CITY 2020 introduces oneself in parallel to FOR ARCH fair

Luminaires and light apparatuses
Modern trends in automobile headlamps

Origami-Folded Hydrogel Paper Instantly Generates 110 Volts of Electricity

19.03.2018 | IEEE Spectrum | spectrum.ieee.org

Animal-inspired technology has gone electric. These brightly colored, 3D-printed gels have the potential to create up to 110 volts of electricity in an instant, similar to the electric eel.

Rows of small hydrogel dots are packed with positively and negatively charged ions that combine together to mimic an electric eel’s cellular structure. Printing and stacking these hydrogels produces the highest amount of voltage, while a connection to a larger contact area produces the highest current. Scientists are hoping that this system could potentially lead to a device that generates power from inside of the human body.

Hydrogel paper

This new power generator works in a similar way as eel’s unique ability to generace electricity. It uses four different types of hydrogels to mimic the eel’s electrical system. One with a high salt concentration, one with a low salt concentration, and two charged membranes—one negative and one positive.

Read more at IEEE Spectrum

Image Credit: IEEE Spectrum

-jk-