Fig. 8From: Chitosan-capped enzyme-responsive hollow mesoporous silica nanoplatforms for colon-specific drug deliveryEffect of HMSS and HMSS–N=N–CS on cell proliferation of a Caco–2 cells and b NIH-3T3 cells for 48 h by MTT assay. c Cytotoxicity of free DOX, HMSS–N=N–CS/DOX, and HMSS–N=N–CS/DOX with enzyme against Caco-2 cells with different concentrations for 48 hBack to article page