. "FIG. 10A is a T1-weighted image of a 96-well immunoanalysis plate fragment (4???4 wells) showing a T1 map of compounds 1Gd3+ and 2Gd3+ acquired at 1.5T. Rows a1 in FIG. 10A contained (from left to right) 0.75, 0.5, 0.25, and 0.1 mM 1Gd3+ (300 ??L) in DPBS, respectively." . . .