期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 239, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2019.121994
关键词
Lanthanide-polyoxornetalates; Dual-responsive; Luminescence; Controlled release; Bioimaging
资金
- National Natural Science Foundation of China [21571074]
- 111 Project [B17019]
- Self-Determined Research Fund of CCNU [CCNU19TS013, CCNU15A02016]
In this paper, the luminescent temperature/pH dual-responsive nanoparticles based on lanthanide-polyoxometalates were fabricated as a controllable drug delivery system. In the drug delivery carrier, the mesoporous silica acted as the core, and the poly (N-isopropylacrylamide-co-methacrylic acid) and lanthanide-polyoxometalates served as the dual-responsive shell and luminescent labeling, respectively. Composite hydrogels exhibited red luminescence under UV Irradiation, which was visible to the naked eye. The releases of doxorubicin hydrochloride (DOX) from the composites were temperature/pH-dependent. DOX can be quickly released in an acidic environment and at high temperatures. Moreover, the drug delivery carrier showed minimal toxicity to HeLa cells and exhibited good biocompatibility. However, DOX loaded drug-delivery system showed the significant toxicity to HeLa cancer cells in vitro. Cell imaging has shown that lanthanide polyoxometalates composites can be used as bioimaging materials for cell monitoring. As a result, the drug delivery systems based on lanthanide-polyoxometalates have potential applications in the field of biomedical science.
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