Water purification breakthrough uses sunlight and nanostructured hydrogels

Scientists have developed a cost-effective and compact technology using combined gel-polymer hybrid materials. Possessing both hydrophilic qualities and semiconducting properties, these hydrogels enable the production of clean, safe drinking water from any source, whether it's from the oceans or contaminated supplies.

Sentinel wrap: A transparent patch to detect dangerous food threats

Researchers have developed a test to bring certainty to the delicate but critical question of whether meat and other foods are safe to eat or need to be thrown out.