glycol) 1000 succinate (TPGS), PF127, 1,3-dicyclohexylcarbodiimide
(DCC), 2,6-di-tert-butyl-p-cresol
(BHT), and methanol were purchased from Sigma-Aldrich (St. Louis,
MO). MnTMPyP was from Calbiochem (EMD Millipore, Billerica, MA). 6-Maleimidohexanoic
acid was from AK Scientific (Union City, CA). Succinimidyl 4-[N-maleimidiomethyl]cyclohexane-1-carboxylate (SMCC) and N-succinimidyl S-acetylthioacetate (SATA)
were from Thermo Scientific Pierce (Rockford, IL). Streptavidin was
from Calbiochem (San Diego, CA). Mouse anti-PECAM MEC13.3 was purchased
from BD Bioscience (San Jose, CA), and monoclonal antibody (mAb 62)
against human anti-PECAM was provided by Dr. Marian Nakada (Centoor;
Malvern, PA). Whole molecule rat IgG was from Rockland Immunochemicals
(Gilbertsville, PA).