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. Author manuscript; available in PMC: 2018 Jun 6.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2017 Sep 11;10(3):e1496. doi: 10.1002/wnan.1496

FIGURE 5.

FIGURE 5

Variable field relaxometry of a Dy-DOTA-conjugated G = 5 PAMAM dendrimer and single Dy(III) chelates. Shown are the T2 relaxivities of (a) Dy-DOTA-PAMAM G = 5 dendrimers, (b) Dy-DOTA single chelates, and (c) Dy-DTPA single chelates as a function of magnetic field strength. Data are shown at 3 (▲), 10 (▼), 20 (●), and 37°C (+). Solid lines represent quadratic fits to the equation 1/T2 = a + bB0,2 with B0 being the external magnetic field strength. For comparison, the T1 relaxivities are negligible, shown as dashed lines at 3 (■) and 37 C (·). (Reprinted with permission form Ref 44 Copyright 1998 Wolters Kluwer Health)