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(A) 48-h cell viability (determined by MTT assay) of HeLa and Saos-2 cells incubated with different precursors at the concentrations of 200, 300, and 400 μM in culture medium. The initial cell numbers are 1 × 104 cells/well. (B) IC50 of different precursors/hydrogelators against different cell lines after 48-h incubation.
