Inside the human body, countless microscopic processes keep us alive and functioning. Fluids move, gases are exchanged, and charged particles flow in and out of cells to maintain balance. One of the ...

The human body is a dynamic place. Blood pumps, spinal fluid flows, oxygen comes in and carbon dioxide goes out. Deeper still, charged molecules pass through cell walls, quietly keeping the body's ...

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 ...

Researchers have discovered that damage to the cell membrane promotes cellular senescence, or cell aging. Our cells are surrounded by a fragile membrane that's only 5 nanometers thick, 1/20 of a soap ...

The membrane that encases a biological cell is not simply a barrier; it is chock full of proteins involved in all sorts of critical biological functions. To really understand what membrane proteins ...

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 ...