A new material developed at Penn State defies a fundamental law of physics, opening doors to highly efficient solar cells.

Scientists at the University of Helsinki discovered how plants heal their protective outer layer, the periderm. The diffusion ...

In these analyses, passive diffusion is thought to dominate drug accumulation rates, whereas active transport is expected to numerically offset predictions of the Fick’s laws. (40,55,66,67,70,380,426) ...