Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 626, Issue -, Pages 719-728Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2022.06.117
Keywords
Photothermal therapy; Chemodynamic therapy; Ferrocene; Tumor
Categories
Funding
- Natural Science Foundation Project of CQ CSTC [cstc2018jcyjAX0795]
- National Natural Science Foundation of China [81871368]
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In this study, ferrocene-based nanoparticles were constructed using copper ions and ferrocene derivatives for the first time. The nanoparticles demonstrated good photothermal conversion properties and efficient Fenton effect, indicating their potential in tumor treatment.
Ferrocene and its derivatives have great potential for biomedical applications, but few related studies have been reported. In this study, copper ions and ferrocene derivatives were used for the first time to construct the ferrocene-based nanoparticles (Cu-Fc) with a hydrated particle size of approximately 220 nm. Their good photothermal conversion properties were verified in vitro and in vivo for the first time, indicating that they could be used as a novel photothermal agent for tumor treatment. In addition, the nanoparticles exhibited efficient Fenton effect under weakly acidic conditions, indicating that they can generate hydroxyl radicals (.OH) to kill tumors in the weakly acidic environment of the tumor -specific microenvironment. More importantly, the nanoparticles can deplete glutathione (GSH), thus fur-ther enhancing Fenton effect-mediated chemodynamic therapy (CDT). Multifunctional ferrocene-based nanoparticles (DOX@Cu-Fc) were obtained after loading the chemotherapeutic drug doxorubicin hydrochloride (DOX). The results of in vitro and in vivo experiments showed that DOX@Cu-Fc could enhance tumor treatment by the combination of chemo/CDT/photothermal therapy (PTT).(c) 2022 Elsevier Inc. All rights reserved.
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