Sounding off: theoretical force patterns for an underwater Chladni plate at two different frequencies. The force arrows illustrate why glass beads accumulate at the plate antinodes (shown in yellow ...

Have you seen Chladni figures? They’re patterns made when sand is exposed to sound waves on metal plates. They can be amazingly intricate. And now scientists could be making them with living cells.

Circulating tumor cells (CTCs) are a rare type of cancer cell that are found in the blood stream of patients with localized tumors. Successful separation of CTCs from blood could serve as a liquid ...