Cell Growth Kinetics & Lag Phase

Model true exponential doubling time by subtracting initial recovery lag.

Initial Cells (N₀)

Harvested Cells (Nₜ)

Total Time Elapsed (hours)

Estimated Lag Phase (hours)

Specific Growth Rate (µ)

0.00 h⁻¹

True Doubling Time

0.00 h

Why Model the Lag Phase?

When cells are passaged (especially via enzymatic dissociation like Trypsin), they enter a lag phase where they repair membrane proteins and adjust to new media before dividing. Failing to subtract this time artificially inflates your calculated doubling time, leading to unpredictable downstream experiments.

Formulas used:
Effective Time (t_eff) = Total Time - Lag Phase
Specific Growth Rate (µ) = ln(Nₜ / N₀) / t_eff
Doubling Time (DT) = ln(2) / µ