Spying on Living Cells
Optics & Photonics Focus
Volume 16 Story 6 - 8/2/2012

A cellular spy cam

The nanowire in the center channels light into a living cell. This light can excite fluorescent markers inside the cell and otherwise be reflected back into the nanowire. A detection system then allows us to capture the light and thus to gain insight into processes inside the living cell. Illustration: Yang group.
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A cellular spy cam. The nanowire in the center channels light into a living cell. This light can excite fluorescent markers inside the cell and otherwise be reflected back into the nanowire. A detection system then allows us to capture the light and thus to gain insight into processes inside the living cell.