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. Author manuscript; available in PMC: 2014 Aug 21.
Published in final edited form as: Lab Chip. 2013 Jun 17;13(16):10.1039/c3lc00004d. doi: 10.1039/c3lc00004d

Table 1.

Pump performance comparison for of single-level TP, multi-level TP, and multi-level TP with double TP air chamber volume.

CD Design: Δt (min) ΔTC (deg) QT (μL/min deg) k (×10−2 / deg) Δ Vh (uL)
Single-level TP 5.6 13.6 1.04 1.24 75
Multi-level TP 8.3 14.3 0.67 1.11 78
Multi-level TP (with double TP air chamber volume) 3.7 12.0 1.81 1.59 80

Note: ΔVh is 80 μL, T0 is 25°C, Δt is the time required for liquid transfer, ΔTC is the change in CD surface temperature, QT is the flow rate per temperature gradient using Eqn. (2), k, is the model constant using Eqn. (3), ΔVh = Vh − V0, where Vh is obtained using Eqn. (5)