Abstract
We present a synthetic nanodevice, which transports potassium ions against their concentration gradient if stimulated with external field fluctuations. It consists of a single, conical pore, created in a thin polyethylene terephthalate film. The pumping mechanism is similar to one of longitudinally oscillating deterministic ratchets.
- Received 25 March 2002
DOI:https://doi.org/10.1103/PhysRevLett.89.198103
©2002 American Physical Society