期刊
RSC ADVANCES
卷 10, 期 4, 页码 2075-2084出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra09147e
关键词
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资金
- Science Foundation of Chinese Academy of Inspection and Quarantine [2019JK004]
- National Key Research and Development Program of China [2017YFF0210003]
gamma-Ti3O5 is one kind of prominent non-stoichiometric metal oxide due to its intriguing ability in electric and electrochemical behaviors. This work reports another attractive property of gamma-Ti3O5 hierarchical porous microspheres, the extremely effective photothermal property with a high photothermal conversion efficiency. Theory and experimental results indicate that gamma-Ti3O5 hierarchical porous microspheres possess metallic features and display very strong localized surface plasma resonance effects over the visible and near-infrared region. Under simulated sunlight or near infrared light, the metallic gamma-Ti3O5 exhibits a photothermal conversion efficiency of up to 65.29%. Under irradiation by a near-infrared laser with a wavelength of 808 nm, the gamma-Ti3O5 hierarchical porous microspheres can significantly inhibit cancer cell viability in vitro and disrupt tumor tissue growth in vivo in a short period. In vitro and in vivo toxicity experiments demonstrate that it has good biocompatibility. The ultrahigh photothermal conversion efficiency and biocompatibility make the gamma-Ti3O5 very attractive for technological uses in photothermal therapy, solar energy utilization, and infrared light detection and so on.
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