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- W4220730429 abstract "The utilization of bioactive glasses (BGs) in cancer therapy has recently become quite promising; herein, a series of Fe-doped mesoporous 45S5-based BGs (MBGs) were synthesized via the sol-gel method in the presence of Pluronic P123 as a soft template. The physico-chemical and biological properties of the prepared glasses were well-characterized through structural assessments, thermal analyses, and electron microscopic studies. Electrochemical analyses, including cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), were also performed to investigate the actual potential of the Fe2O3-containing MBGs in modulating the Fenton's reaction. The XRD results confirmed the glassy state of the Fe-doped samples before immersion in simulated body fluid (SBF). The prepared Fe-doped MBGs exhibited a particle size in the range of 11-86 nm, surface charge of 27-30 mV, SBET of 95-306 m2/g, and Ms of 0.08 to 0.2 emu/g. The incorporation of Fe2O3 led to a negligible decrease in the bioactivity of the glasses. The CV analysis indicated that the Fe-doped MBGs could generate H2O2 in a cathodic potential higher than -0.2 V (vs. Ag/AgCl) in the O2-saturated Na2SO4 solution. Additionally, the data of the EIS test revealed that the Fe2O3-doped MBGs could increase the standard rate constant of Electro-Fenton's (EF) reaction up to 38.44 times as compared with the Fe-free glasses. In conclusion, Fe-doped 45S5-derived glasses may be useful in cancer therapy strategies due to their capability of activating Fenton's reaction and subsequent production of reactive oxygen species (ROS) such as •OH free radicals." @default.
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- W4220730429 date "2022-06-01" @default.
- W4220730429 modified "2023-10-02" @default.
- W4220730429 title "Iron (Fe)-doped mesoporous 45S5 bioactive glasses: Implications for cancer therapy" @default.
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- W4220730429 doi "https://doi.org/10.1016/j.tranon.2022.101397" @default.
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