Biological processes that govern our lives are many, intertwined, and often difficult to understand. They involve countless ...

The upper size limit on cell-penetrating drug molecules may be much higher than medicinal chemists had thought. A research team reports that molecules believed to be much too large to diffuse across ...

Modern cells are complex chemical entities with cytoskeletons, finely regulated internal and external molecules, and genetic ...

The origin of life is one the great unanswered questions in science. One piece of this puzzle is that life started on Earth 4.5 billion years ago, just a few hundred million years after the formation ...

Cells may generate their own electrical signals through microscopic membrane motions. Researchers show that active molecular processes can create voltage spikes similar to those used by neurons. These ...