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MOF‐Derived Double‐Layer Hollow Nanoparticles with Oxygen Generation Ability for Multimodal Imaging‐Guided Sonodynamic Therapy
Author(s) -
Pan Xueting,
Wang Weiwei,
Huang Zhijun,
Liu Shuang,
Guo Juan,
Zhang Fengrong,
Yuan Hongjun,
Li Xin,
Liu Fengyong,
Liu Huiyu
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202004894
Subject(s) - sonodynamic therapy , nanoparticle , reactive oxygen species , materials science , tumor hypoxia , oxygen , nanotechnology , chemistry , radiation therapy , medicine , biochemistry , organic chemistry , radiology
Abstract The high reactive oxygen species (ROS) generation ability and simple construction of sonosensitizer systems remain challenging in sonodynamic therapy against the hypoxic tumor. In this work, we rationally prepared MOF‐derived double‐layer hollow manganese silicate nanoparticle (DHMS) with highly effective ROS yield under ultrasound irradiation for multimodal imaging‐guided sonodynamic therapy (SDT). The presence of Mn in DHMS increased ROS generation efficiency because it could be oxidized by holes to improve the electron–hole separation. Moreover, DHMS could produce oxygen in the tumor microenvironment, which helps overcome the hypoxia of the solid tumor and thus enhance the treatment efficiency. In vivo experiments demonstrated efficient tumor inhibition in DHMS‐mediated SDT guided by ultrasound and magnetic resonance imaging. This work presents a MOF‐derived nanoparticle with sonosensitive and oxygen generating ability, which provides a promising strategy for tumor hypoxia in SDT.