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. 2022 Jun 29;13:3742. doi: 10.1038/s41467-022-31546-3

Table 1.

Physical parameters of solvents at 20 °C, calculated thermophoretic mobility and drift velocity at a constant τ of 2, and relative τ derived from the observed drift velocity.

Solvent εb η [cP] κ [W m−1 K−1] ζ [mV] DT [µm2 K−1 s−1] Ta [K µm−1] u [µm s−1] uobs [µm s−1] (95% CI)b τ (relative)c
water 80.1 1.00 0.598 −48.6 8.21 −1.99 −16.3 −7.6 (−9.4, −5.9) 1
50% EtOH 50.3 2.41 0.317 −13.9 1.69 −3.74 −0.6 −20.9 (−23.1, −18.7) 106
50% DMSO 75.5 3.46 0.327 −74.3 5.08 −3.61 −18.3 −3.7 (−4.5, −2.9) 0.15

aThe maximum temperature gradient from Fig. 2c is used for ∇T and κp is 0.05 W m−1 K−1.

bConfidence intervals (CI) at 95% for the observed velocity.

cRelative τ was calculated from experimentally observed drift velocities and other physical parameters and was normalized to the value for water.