Preparation, Biocompatibility and Antitumor Activity of Nanodelivery System Targeting Breast Cancer Base on a Silica Nanoparticle.

From 3 h to 6 h after administration, the %ID/g value in the small intestine showed an increasing trend, which may be because liver is a pathway of NP metabolism.

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From 3 h to 6 h after administration, the %ID/g values in the phagocytic systems, such as liver, spleen and kidney, were increased, which was related to the phagocytosis of the phagocytic system; from 6 h to 12 h after administration, the %ID/g showed a decreasing trend, which was related to the metabolism of NPs.

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