Science Daily January 29, 2018
Researchers in Switzerland have developed a technology called Hydro-bot based on osmosis. To ensure that liquid is actively transported from the inside to the outside by means of electro-osmosis, a polymer membrane with a thickness of 20 micrometers is used, which is coated on both sides with a noble metal by means of plasma coating. A voltage of around 1.5 volts is applied to accelerate the process. When the voltage is applied, salt ions and the liquid surrounding them migrate through tiny pores in the membrane to the outside. The membrane is equipped with a conventional battery which can be switched on depending on weather and body activity. The membrane can pump out about 10 liters of liquid per square meter an hour…read more.
Prototype of the electro-osmotic jacket at the international sports fair ISPO in Munich. Credit: Osmotex