title: Au-nanoparticle coated mesoporous silica nanocapsule-based multifunctional platform for ultrasound mediated imaging, cytoclasis and tumor ablation.
abstract: Au nanoparticles-coated, perfluorohexane-encapsulated and PEGylated mesoporous silica nanocapsule-based enhancement agents (MSNC@Au-PFH-PEG, abb. as MAPP) have been synthesized, for the ultrasound-induced cytoclasis, contrast-intensified ultrasound (US) imaging and US-guided high intensity focused ultrasound (HIFU) surgical therapy. Both the US-induced thermal effect and US triggered release of loaded model drug with MAPP under US exposure indicated the excellent US sensitivity of MAPP and its applicability for the combined chemo-/thermal therapy and future potential for HIFU ablation; US imaging under different modes verify the attractive US contrast intensification by using MAPP; US-guided HIFU therapy ex vivo and in vivo with MAPP is found to be highly efficient on rabbit VX2 xenograft tumor ablation due to the high thermal energy accumulation and increased mechanical/thermal effects from US-induced PFH bubble cavitations. MAPP can be promisingly used as an inorganic theranostic platform for contrast-intensified US imaging, combined chemotherapy and efficient HIFU tumor ablation under the guidance by the intensified US.
authors.affiliation: State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics Chinese Academy of Science, Shanghai 200050, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Hangrong
authors.initials: H
authors.lastname: Chen
authors.forename: Yuanyi
authors.initials: Y
authors.lastname: Zheng
authors.forename: Ming
authors.initials: M
authors.lastname: Ma
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Kun
authors.initials: K
authors.lastname: Zhang
authors.forename: Deping
authors.initials: D
authors.lastname: Zeng
authors.forename: Jianlin
authors.initials: J
authors.lastname: Shi
mesh_terms: D000818:Animals; D002470:Cell Survival / Q000187:drug effects; D020099:Coated Materials, Biocompatible / Q000494:pharmacology*; D003287:Contrast Media; D003952:Diagnostic Imaging; D005466:Fluorocarbons / Q000737:chemistry; D006046:Gold / Q000627:therapeutic use*; D057086:High-Intensity Focused Ultrasound Ablation; D007279:Injections, Subcutaneous; D053768:Metal Nanoparticles / Q000627:therapeutic use* / Q000648:ultrastructure; D051379:Mice; D053769:Nanocapsules / Q000627:therapeutic use* / Q000648:ultrastructure; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D011092:Polyethylene Glycols / Q000737:chemistry; D016062:Porosity; D011817:Rabbits; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature; D014463:Ultrasonography; D023041:Xenograft Model Antitumor Assays
chemical_list: D020099:Coated Materials, Biocompatible; D003287:Contrast Media; D005466:Fluorocarbons; D053769:Nanocapsules; D011092:Polyethylene Glycols; D006046:Gold; D012822:Silicon Dioxide; C078626:perflexane