Answers are grounded in this paper and cite their sources.
Gd smart: MRI contrast agents are presented that are based on a biocompatible condensation reaction. Upon reduction, a gadolinium-containing cell-permeable small-molecule probe condenses into cyclic oligomers that subsequently self-assemble into nanoparticles (NPs) with enhanced relaxivity (by 110 % at 1.5 T and 35 °C, and 104 % in live cells at 0.5 T).
No takes yet. Share an insight, caveat, or question.
Liang et al. (2011) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: