Abstract |
Functionalizing black phosphorus nanosheet (BP) with efficient drug loading and endowing mesoporous silica nanomaterials with appropriate biodegradation for controllable tumor-targeted chemo- photothermal therapy are still urgent challenges. Herein, an ordered mesoporous silica-sandwiched black phosphorus nanosheet (BP@MS) with the vertical pore coating was prepared. The strategy could not only enhance the BP's dispersity and improve its doxorubicin (DOX)-loading efficiency, but also facilitate post-modification such as PEGylation and conjugation of targeting ligand, TKD peptide, yielding BSPT. A DOX-loaded BSPT-based system (BSPTD) showed heat-stimulative, pH-responsive, and sustained release manners. In vitro and in vivo results demonstrated that BSPTD had a delayed but finally complete degradation in physiological medium, contributing to an optimal therapeutic window and good biosafety. As a result, BSPTD can achieve an effective chemo-photothermal synergistic targeted therapy of tumor. Moreover, treating by BSPTD was found to be capable of remarkably inhibiting the lung metastasis of tumor, attributing to the photothermal degradation-facilitated secondary drug delivery. Our study provided a robust strategy to functionalize BP nanosheet and biodegrade the mesoporous silica for extended biomedical applications.
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Authors | Leilei Chen, Min Qian, Huiling Jiang, Yiwei Zhou, Yilin Du, Yafeng Yang, Taotao Huo, Rongqin Huang, Yi Wang |
Journal | Biomaterials
(Biomaterials)
Vol. 236
Pg. 119770
(04 2020)
ISSN: 1878-5905 [Electronic] Netherlands |
PMID | 32006702
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2020 Elsevier Ltd. All rights reserved. |
Chemical References |
- Phosphorus
- Silicon Dioxide
- Doxorubicin
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Topics |
- Doxorubicin
- Humans
- Hyperthermia, Induced
- Nanoparticles
- Neoplasms
(therapy)
- Phosphorus
- Phototherapy
- Silicon Dioxide
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