Influence of Molecular Mobility on Contrast Efficiency of Branched Polyethylene Glycol Contrast Agent

Figure 3

(a) ¹H NMR measurements of the synthesized PEG-Gd at room temperature. (b) Evaluation of mobility of PEG-Gd (■ eight-arm (2.6), ◊ four-arm (2.0), ○ dendron (0.7), and △ linear (0.7)) in D₂O at various temperatures.

(a)

(b)