Now, a team of researchers has developed a hydrogel with a unique structure that overcomes earlier limitations, opening the door to applications such as drug delivery, wound healing, soft robotics ...

Besides the incident at Gloucester Township Day, where police said juveniles were shooting the water beads at animals in ... children about the dangers of hydrogel guns, some of which are sold ...

They are made of a gel that's very water absorbent, so they can start off looking like a sprinkle or a small bead and expand to 100 or more times their original size when placed in water. And then ...