Design and synthesis of Fe3O4@SiO2core-shell nanomaterials

Lu, Chenghao; Chen, Guihuan; Yu, Bing; Cong, Hailin; Kong, Ling-Min; Lin, Guo

doi:10.1080/10584587.2017.1352383

Cited by 12 publications

(2 citation statements)

References 13 publications

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“…Magnetite (Fe 3 O 4 ) has been used as core in several coreshell systems with coating of silicon dioxide [18][19][20] or titanium dioxide 21,22 , among others. These (Fe 3 O 4 -SiO 2 or Fe 3 O 4 -TiO 2 ) particulate systems are synthesized because of their enormous potential application as catalysts or catalytic supports, in which various linkers or specific chemical groups can be anchored in order to obtain magnetically separable catalysts.…”

Section: Introductionmentioning

confidence: 99%

Fe3O4-TiO2 and Fe3O4-SiO2 Core-shell Powders Synthesized from Industrially Processed Magnetite (Fe3O4) Microparticles

Noval

Carriazo

2019

Mat. Res.

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The interest for core-shells has been increased in the recent years due to their improved and modifiable properties. In this work, Fe 3 O 4 -TiO 2 and Fe 3 O 4 -SiO 2 core-shells were successfully synthesized from an industrially produced magnetite-rich powder with micro-and nanometric particle sizes, superparamagnetic behavior and saturation magnetization of 49 emu/g. The reverse microemulsion method was used to the synthesis of these core-shells. X-ray diffraction, energy dispersive X-ray analysis, electron microscopy (SEM-TEM), and magnetization curves were used to characterize the solids. Core-shells with different morphology and size, coating of crystalline TiO 2 (anatase) or amorphous silica, and superparamagnetic performance at room temperature (300 K) were obtained.

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Section: Introductionmentioning

confidence: 99%

Fe3O4-TiO2 and Fe3O4-SiO2 Core-shell Powders Synthesized from Industrially Processed Magnetite (Fe3O4) Microparticles

Noval

Carriazo

2019

Mat. Res.

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“…Fe 3 O 4 nanoparticles coated with SiO 2 shells obtained by Ta et al through hydrolysis and condensation [75] showed increased biocompatible properties and provided new ideas for future bioconjugation studies [3]. Moreover, the Fe 3 O 4 -SiO 2 core-shell structure prepared by Lu et al using an ultrasound-assisted method [80] has good opportunities in the field of biomedicine [3]. TiO 2 is another metal oxide with interesting properties such as biocompatibility, chemical inertness, high stability, and resistance to body fluids that lead to its use in cosmetics, pharmaceutics, and malignant tumor therapy [43,81,82].…”

Section: Metal Oxide-coated Fe 3 Omentioning

confidence: 99%

Fe3O4 Core–Shell Nanostructures with Anticancer and Antibacterial Properties: A Mini-Review

Ioța,

Cursaru,

Șchiopu

et al. 2023

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Core–shell nanoparticles are functional materials with tailored properties, able to improve the requirements of various applications. Both core and shell components can be inorganic or organic, and there are numerous studies in this field regarding their synthesis methods, properties, and applications. This review aims to study core–shell nanostructures with Fe3O4 cores and different shell types, observing their antibacterial and anticancer properties. By the type of coating, Fe3O4 core–shell nanoparticles (NPs) are classified into four categories: metal-coated NPs, metal-organic framework (MOF) coated NPs, metal oxide coated NPs, and polymer-coated NPs. Each category is briefly presented, emphasizing anticancer or antibacterial properties and specific applications (cancer diagnosis or therapy, drug carrier). Moreover, synthesis methods and particle size for both core and shell nanostructures, as well as the magnetic properties of the final core–shell material, are summarized in this review. Most of the consulted papers discussed sphere-like core–shell nanoparticles obtained by chemical methods such as coprecipitation, hydrothermal, and green synthesis methods using plant extract. These types of core–shell nanoparticles could be used as drug nanocarriers for tumor-targeted drug delivery, hyperthermia treatment, or contrast agents. Further work needs to be conducted to understand nanoparticles’ interaction with living cells and their traceability in the human body.

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