Most of us think of soap as a way to make stuff less sticky. But a new process actually ups the stickiness of soap itself — by making it magnetic.
Researchers at Bristol University in the United Kingdom have created the world's first magnetic soap, made by dissolving iron-rich salts in water. The goal is to create a soap that can be used in industrial cleaners or in environmental cleanups that can then be picked up out of the environment, not just rinsed away.
If the soap works, it could be used in situations like the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. To clean up that spill, the energy company BP sprayed hundreds of thousands of gallons of dispersants at the site. These dispersants could potentially harm the environment themselves, so a surfactant (as soaps are known in the industry) that could break up oil and then be picked up itself would be a breakthrough.