This microscopic 3-D pattern was "painted" using a laser beam

Scientists at the Vienna University of Technology have developed a brand new method for positioning molecules in space with micrometer precision. They call it "3D-photografting," and it uses laser beams to place microscopic chemical structures in the nooks and crannies of a macromolecular meshwork known as hydrogel. » 8/29/12 1:30pm 8/29/12 1:30pm

Grow an Exoskeleton with Bone-Generating Hydrogel

In fifty years, standard-issue supersoldiers will boast exoskeletons that make bullet-proof vests obsolete. In fact, at the rate researchers are figuring out bone synthesis, you could have an exoskeleton even sooner than that. Using substances called "hydrogels" (pictured), tissue engineers create a thick, flexible… » 8/18/08 7:00am 8/18/08 7:00am