From: Miniaturization effect of electroosmotic self-propulsive microswimmer powered by biofuel cell

Meaning | Part | Symbol | Value (units) | Comment |
---|---|---|---|---|

Permittivity | Electrolyte | \(\epsilon\) | \(6.580\times 10^{-10}\) (F/m) | Water (310 K) |

Viscosity | Electrolyte | \(\eta\) | \(0.692\times 10^{-3}\) (Pa s) | Water (310 K) |

Mass density | Electrolyte | \(\rho _f\) | 993 (\(\hbox {kg/m}^3\)) | Water (310 K) |

Mass density | Insulating tube | \(\rho _t\) | 1190 (\(\hbox {kg/m}^3\)) | SU-8 [18] |

Zeta potential | Insulating tube | \(\zeta\) | \(-0.030\) (V) | SU-8 [19] |

OCP | Electrodes | \(\Delta \phi _{ca}\) | \(< 1.18\) (V) | Theoretical supremum from the Gibbs free energy [20] |

Diameter ratio | Swimmer | \(D/D_t\) | 1.50 |