Experiments with a new three-dimensional model of liver tissue find that the toxic effects of nanoparticles are reduced when compared with tests that use two-dimensional models. Cells reside in a ...

Galen of Pergamos was a physician with a practice in second-century Rome. Among his clientele was the Roman Emperor Marcus Aurelius. Galen was also a prolific scribbler, so we know a lot about his ...

Tree bark surfaces play an important role in removing methane gas from the atmosphere, according to a study published 24 July in Nature. An international team of scientists from Austria and Germany ...