News: Cellular and Tissue Engineering

For centuries, scientists have puzzled over configurations of objects that fit a given space. These packing problems not only have fascinated mathematicians, they also hold critical implications for disciplines from chemistry to shipping.
For bacteria facing a dose of antibiotics, timing might be the key to evading destruction. In a series of experiments, Princeton researchers found that cells that repaired DNA damaged by antibiotics before resuming growth had a much better chance of surviving treatment.
Most people can name at least a few bones of the human body, but not many know about the cytoskeleton within our cells, let alone the “microtubules” that give it its shape. Now, a group of Princeton researchers has resolved a long-standing controversy by identifying exactly how the body creates these micron-sized filaments.