Table 1.
Surface derivatizationa |
μeo×10−4 [cm2(Vs)−1] |
EOF reductionb [%] |
||
---|---|---|---|---|
PDMS | Quartz | PDMS | Quartz | |
Uncoated | 2.1±0.33 | 3.15±0.68 | 0 | 0 |
PLL-PEG (static) | 0.36±0.05 | 0.38±0.08 | 83 | 88 |
PLL-PEG (dynamic) | −0.76±0.23 | n.a. | Anodic EOF | n.a. |
DDM/MC (dynamic) | 0.13±0.02 | 0.28±0.09 | 94 | 91 |
F108 (dynamic) | 0.14±0.02 | 0.26±0.06 | 93 | 92 |
PDMS surfaces were plasma oxidized before surface derivatization
Reduction is calculated relative to uncoated surfaces