Scientists develop swimsuit that cleans water as people swim

by Search Gate staff. Published Tue 13 Oct 2015 16:15
New material soaks up contaminants in the water
New material soaks up contaminants in the water

Scientists have created a new material that can be used as a pollution-busting swimsuit because of its ability to clean water as the wearer swims through it.

The reusable material, which the team at University of California, Riverside, call Sponge, is derived from heated sucrose, a form of sugar. It has a highly porous structure that is super hydrophobic, meaning it repels water, but also absorbs harmful contaminants.

"This is a super material that is not harmful to the environment and very cost effective to produce," said Mihri Ozkan, an electrical engineering professor at UC Riverside's Bourns College of Engineering.

Ozkan, along with her husband and fellow engineering professor, Cengiz Ozkan, current Ph.D. student, Daisy Patino, and Hamed Bay, who recently earned his Ph.D. after working with the Ozkan's, began developing the material about four years ago for applications such as cleaning up oil or chemical spills or desalinizing water.

They also believe the unique water-repelling nature of the material could be used in paint applied to airplanes and satellites or as part of electromagnetic shields for such things as unmanned aerial vehicles.

The idea to incorporate the material into wearable technology, such as the swimsuit, came from Pinar Guvenc, Inanc Eray and Gonzalo Carbajo, partners of Eray Carbajo, an architecture and design firm based in New York City and Istanbul.

The team visited the Ozkan's labs and worked with them to design the swimsuit. Their design won first place at the Reshape 15 Wearable Technology Competition and will be recognized at the Maker Faire in Rome on Oct. 16.

The team's design moulds the Sponge material into the shape of a bikini and encapsulates it in a net-like cage made of 3D-printed elastomer that forms to the body. The material could also be incorporated into such things as bathing suits, swimming caps and wet suits.

The Sponge material can absorb up to 25 times its own weight and it doesn't release the absorbed materials unless it is heated at a temperature exceeding 1,000 degrees Celsius.

The contaminants will be trapped in the inner pores of the sponge material, so they don't touch the skin. After being used a number of times, the sponge pad can be replaced with a new pad and the old one can be recycled. Testing at the Ozkans' UC Riverside labs showed that the Sponge material can be reused up to 20 times without losing its absorbency.

The UC Riverside Office of Technology Commercialization has filed patents for the inventions.

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