Table 2.

Linear-fit parameters of polymer-cell uptake versus time

Polymer/cell type	G2.5		G6.5		G5G2.5
	Slope	r2	Slope	r2	Slope	r2
HaCaT	1.321	0.9858	0.5981	0.9982	0.1409	0.9559
Caco-2	6.725	0.9850	0.1273	0.9932	0.1897	0.9564
SK-Mel-28	38.80	0.9856	2.804	0.9524	2.773	0.9895