Dielectrophoresis Force Calculator

AC electrokinetics & BioMEMS: Calculate time-averaged dielectrophoretic force (\(F_{\text{DEP}}\)), Clausius-Mossotti factor (\(f_{\text{CM}}\)), and crossover frequency (\(f_{xo}\)).

Cell / Particle & Buffer Properties

Particle / Cell Radius r (µm): Lymphocyte ~ 4-5 µm, CTC ~ 8-10 µm

AC Applied Frequency f (kHz):

Buffer Conductivity σ_m (mS/m): DEP buffer ~ 10-100 mS/m

Cell Internal Cond. σ_p (mS/m): Cytoplasm ~ 300-800 mS/m

Buffer Permittivity ε_r,m:

Cell Permittivity ε_r,p:

Electric Field Grad ∇|E|²: V²/m³ (1.5×10¹⁵ typ)

Dielectrophoretic Force & Polarizability

Dielectrophoretic Force (F_DEP)

Clausius-Mossotti Factor Re[f_CM]

Crossover Freq (f_xo)

Low-Freq Limit

High-Freq Limit

Cell Sorting & Separation Assessment

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Dielectrophoresis Force Calculator

Cell / Particle & Buffer Properties

Dielectrophoretic Force & Polarizability

Frequently Asked Questions