articleNature CommunicationsAug 21, 2017GOLD OA

Tumor-selective catalytic nanomedicine by nanocatalyst delivery

Chinese Academy of Sciences · Shanghai Institute of Ceramics · +2 more institutions

PubMed
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Abstract

Abstract Tumor cells metabolize in distinct pathways compared with most normal tissue cells. The resulting tumor microenvironment would provide characteristic physiochemical conditions for selective tumor modalities. Here we introduce a concept of sequential catalytic nanomedicine for efficient tumor therapy by designing and delivering biocompatible nanocatalysts into tumor sites. Natural glucose oxidase (GOD, enzyme catalyst) and ultrasmall Fe 3 O 4 nanoparticles (inorganic nanozyme, Fenton reaction catalyst) have been integrated into the large pore-sized and biodegradable dendritic silica nanoparticles to fabricate the sequential nanocatalyst. GOD in sequential nanocatalyst could effectively deplete glucose…

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