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. 2020 Nov 17;12(4):1368–1377. doi: 10.1039/d0sc03504a

K a and Rb of interaction between GBCAs and pyrene derivatives in buffer, pH = 7.0 ± 0.1 (T = 25 °C, B0 = 0.5 T).

r 1p a (mM−1 s−1) K a (M−1) r b (mM−1 s−1) R 1 (s−1) GBCA : pyrene (1 : 3)
Gd-HPDO3A/HPTS 4.6 628 6.9 6.7
Gd-DO3A-Butrol/HPTS 5.0 1157 7.9 7.6
Gd-DOTA/HPTS 4.2 174 7.4 5.7
Gd-DTPA/HPTS No interaction
Gd-DTPABMA/HPTS No interaction
Gd-BOPTA/HPTS No interaction
Gd-HPDO3A/HPDS 4.6 124 10.9 6.9
Gd-HPDO3A/PTS 4.6 177 7.3 6.1
a

r 1p = relaxivity for 1 mM Gd-complex in the absence of pyrenes.

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