Fig. 4From: Extracellular matrix modulating enzyme functionalized biomimetic Au nanoplatform-mediated enhanced tumor penetration and synergistic antitumor therapy for pancreatic cancerPenetration and toxicity in BxPC3 MTSs. a CLSM z-stack images of BxPC3 MTSs after incubation with Dox, AuNCs/Dox, M@AuNCs/Dox and Col-M@AuNCs/Dox (scale bar: 200 μm) and (b) the fluorescence intensity profiles along the selected lines. c Optical images and (d) diameters of BxPC3 MTSs treated with different formulations for 7 daysBack to article page