Fig. 14.
(A) Schematic of dual-responsive HPMA copolymer conjugates for multistage nuclear targeting. (B) The evaluation of nucleus transport efficiency by quantification of nuclear FITC content. (C) Subcellular distribution at different pH. (D) HeLa tumour growth curves after intravenous injection for evaluating the antitumour effect. Reprinted with permission from ref. 48. Copyright 2015, Elsevier.