Figure 3.
Effect of Gd on cytotoxicity of HPMA copolymer–Dox conjugates at 37 °C after: (a) 24 h; (b) 48 h; and (c) 72 h. Dox (◇); p-Dox–DOTA (■); p-Dox–DOTA–Gd (▲) using MTT assay. Data represent the means of triplicate ± standard error. For structures and characteristics of the samples see Figure 1 and Table 1.