Biomedical application of boron nitride (BN) nanomaterials has recently attracted considerable attentions. BN nanospheres (BNNS) could safely deliver anti-cancer drug into tumor cells, which makes them potential nanocarrier for cancer therapy. However, the poor dispersity in physiological environments and low drug loading capacity severely limit their further applications. Herein, we developed a novel drug delivery system based on folate-conjugated mesoporous silica (MS)-functionalized BNNS (BNMS-FA). Dispersity and drug loading capacity of BNNS were highly improved by MS modification. BNMS-FA complexes were nontoxic up to a concentration of 100 μg/mL, and could be specifically internalized by HeLa and MCF-7 cells via folate receptor-mediated endocytosis. Doxorubicin (DOX) could be loaded onto BNMS-FA complexes with high efficiency via π-π stacking and hydrogen bonding, and showed a sustained release pattern under different pH conditions. BNMS-FA/DOX complexes exhibited superior drug internalization and antitumor efficacy over free DOX, BNNS/DOX and BNMS/DOX complexes, which were considered promising for targeted cancer therapy.
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http://dx.doi.org/10.1016/j.msec.2018.11.063 | DOI Listing |
Pharmaceutics
June 2022
The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia.
Beneficial features of biocompatible high-capacity UiO-66 nanoparticles, mesoporous SiO, and folate-conjugated pluronic F127 were combined to prepare the core-shell UiO-66@SiO/F127-FA drug delivery carrier for targeted cellular uptake in cancer treatment. UiO-66 and UiO-66-NH nanoparticles with a narrow size and shape distribution were used to form a series of core-shell MOF@SiO structures. The duration of silanization was varied to change the thickness of the SiO shell, revealing a nonlinear dependence that was attributed to silicon penetration into the porous MOF structure.
View Article and Find Full Text PDFSci Rep
October 2021
Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Although siRNA is a promising technology for cancer gene therapy, effective cytoplasmic delivery has remained a significant challenge. In this paper, a potent siRNA transfer system with active targeting moieties toward cancer cells and a high loading capacity is introduced to inhibit drug resistance. Mesoporous silica nanoparticles are of great potential for developing targeted gene delivery.
View Article and Find Full Text PDFActa Biomater
September 2020
Institute of Bismuth Science, College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China. Electronic address:
Developing a multi-functional radiosensitizer with high efficiency and low toxicity remains challenging. Herein, we report a mesoporous heterostructure radiosensitizer (UCNP@NBOF-FePc-PFA) containing Lu-based upconversion nanophosphor (UCNP) and Bi-based nanomaterial loaded with iron phthalocyanine for X-ray and NIR light dual-triggered tri-modal tumor therapy. NaLuF:Yb,Tm, a Lu-based UCNP, offers radiosensitization and upconversion luminescence for optical bio-imaging.
View Article and Find Full Text PDFNano Lett
March 2019
Department of Industrial and Physical Pharmacy , Purdue University, 575 Stadium Mall Drive , West Lafayette , Indiana 47907 , United States.
Combination therapy is a common clinical practice in the management of malignancies. Synergistic therapeutic outcomes are achieved only when tumor cells are exposed to drugs in an optimal ratio and sequence; therefore, carriers coencapsulating multiple drugs are widely pursued for their coordinated delivery. However, it is challenging to coload drugs with different physicochemical properties in a single carrier with specific ratios.
View Article and Find Full Text PDFMater Sci Eng C Mater Biol Appl
March 2019
Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China. Electronic address:
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