Students will plan and conduct an absorbency test on four different materials and be able to explain that when testing materials to learn about their properties, the materials need to be tested in the ...

Engineers find the hydrogel polyethylene glycol (PEG) doubles its water absorption as temperatures climb from 25 to 50 C, and could be useful for passive cooling or water harvesting in warm climates.

Researchers from Duke University have created the first gel-based substitute for natural cartilage, which, according to them, is more durable than the original. The hydrogel material is made of water ...

Hydrogels are soft, jelly-like materials that can absorb large amounts of water. They are widely used in medical technologies such as contact lenses and wound dressings, and are also a staple of ...

The gel material is cheap to make, and a single kilogram can produce liters of water in seemingly dry conditions. Reading time 4 minutes As the world becomes increasingly hot, fresh and clean water is ...

The vast majority of absorbent materials will lose their ability to retain water as temperatures rise. This is why our skin starts to sweat and why plants dry out in the heat. Even materials that are ...