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(a) The tumor tissues images from the tumor-bearing nude mice of physiological saline, PAC, PAC-MHA, and PAC-HMHA groups. (b) The tumor volume curves. (c) Histological examination of excised tumor tissues under different magnification. PAC, paclitaxel; PAC-MHA, paclitaxel-mesoporous hollow alumina nanoparticles; PAC-HMHA, paclitaxel-hyaluronic acid functionalized mesoporous hollow alumina nanoparticles.
