Fig. 7.

All data points are plotted as average fluorescence reading (a.u.) ± standard deviation, n = 4 – 6. a Constant fluorescence reading (< 2-fold change) of Ln-aptamer in solutions containing different vol % of Magnevist® and Ablavar®, indicating the lack of reactivity between Ln-aptamer and the compounds found in the formulation of the contrast agent. b Increase in fluorescence of Ln-aptamer is observed when excess aqueous Gd(III) ion is added to a solution containing Magnevist® and Ablavar®, demonstrating the response of the sensor to free Gd(III) in a GBCA solution