Table 2. Permeabilty Coefficients (P) for Porphyrin Conjugates and Lucifer Yellow (LY) Using Human Endothelial hCMEC/D3 Cells.

compd	P × 10–6 (cm/s)
1	1.36 ± 0.04
3	2.32 ± 0.02
4	0.82 ± 0.02
5	0.62 ± 0.05
6	1.18 ± 0.03
7	1.44 ± 0.03
8	1.71 ± 0.06
9	1.31 ± 0.08
10	0.82 ± 0.06
11	1.21 ± 0.04
12	3.29 ± 0.03
13	1.10 ± 0.06
14	0.87 ± 0.08
15	1.47 ± 0.05
LY	21.7 ± 0.30