期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 32, 页码 10309-10313出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201804466
关键词
imaging agents; iridium; nanoparticles; photoacoustic imaging; phototherapy
资金
- Joint Sino-German Research Projects [21761132028]
- National Natural Science Foundation of China [21675149]
- Key Research Program of Frontier Sciences, CAS [QYZDY-SSW-SLH019]
- Science and Technology Development Program of Jilin Province [20170414037GH, 20170520133JH, 20150519014JH]
Intrinsically integrating precise diagnosis, effective therapy, and self-anti-inflammatory action into a single nanoparticle is attractive for tumor treatment and future clinical application, but still remains a great challenge. In this study, bovine serum albumin-iridium oxide nanoparticles (BSA-IrO2 NPs) with extraordinary photothermal conversion efficiency, good photocatalytic activity, and a high X-ray absorption coefficient were prepared through one-step biomineralization. The nanoparticles allow tumor phototherapy and simultaneous photoacoustic/thermal imaging and computed tomography. More importantly, BSA-IrO2 NPs can also act as a catalase to protect normal cells against H2O2-induced reactive oxygen pressure and inflammation while significantly enhancing photoacoustic imaging through microbubble-based inertial cavitation. These remarkable features may open up the exploration iridium-based nanomaterials in theranostics.
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