Slicing up and analyzing real, living, three-dimensional brain tissue comes with some obvious complications – as in, it tends to be needed by its owner. But scientists are now closer than ever to being able to grow realistic brain tissue models in the lab to experiment on instead. A team of researchers led by the University of California, Riverside (UCR) have created a tiny scaffolding some 2 millimeters (0.08 inches) wide, on which donated neural stem cells can be attached and develop into