Universal low-frequency asymptotes of dynamic conic nanopore rectification: An ionic nanofluidic inductor

Yu Yan, Jarrod Schiffbauer, Gilad Yossifon, Hsueh Chia Chang

Research output: Contribution to journalArticlepeer-review

Abstract

We report the first nanofluidic inductor (L) to complement the known nanofluidic capacitors (C), resistors (R), and diodes for ion currents. Under negative bias, the nanopore behaves like a parallel RC circuit at low frequencies; however, under positive bias, the asymptotic dynamics is that of a serial RL circuit. This new ionic circuit element can lead to nanofluidic RLC or diode-inductor oscillator circuits and new intrapore biosensing/rapid sequencing strategies. A universal theory, with explicit estimates for the capacitance and inductance at opposite biases, is derived to collapse the rectified dynamics of all conic nanopores to facilitate design of this new nanofluidic circuit.

Original languageEnglish
Article number224705
JournalJournal of Chemical Physics
Volume143
Issue number22
DOIs
StatePublished - 14 Dec 2015

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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