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Green chemical synthesis for well-defined and sharply distributed SiO2@FexOy particles

  • Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)
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Journal of Sol-Gel Science and Technology Aims and scope Submit manuscript

Abstract

Using a non-toxic precursor, we created a green chemical synthesis for colloidal spheres with a core@shell structure having a silica core and an iron oxide shell (SiO2@FexOy). Our synthesis pathway enabled an iron oxide shell formation with a 9 ± 6 nm thick shell onto colloidal silica spheres (ca. 700 nm). SiO2@FexOy particles reduced A549 cell viability and induced DNA damage. SiO2@FexOy particles showed the potential for removing fluoride from water.

Highlights

  • Green chemical synthesis for monodisperse, spherical SiO2@FexOy particles. A 9 ± 6 nm thick shell of iron oxide formed onto monodisperse silica spheres.

  • The presence of the shell reduced A549 cell viability and induced DNA damage.

  • SiO2@FexOy particles removed fluoride from water in batch systems.

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Acknowledgements

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (PIP-2013-0105, Long’s doctoral fellowship), Agencia Nacional de Promoción Científica y Tecnológica (ANPCYT) (PICT-2014-2583 and PICT 2016-0508), and Universidad Nacional de La Plata (UNLP) (PPID 2018) partially supported this study.

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Authors and Affiliations

  1. Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 1y 115, 1900, La Plata, Argentina

    Florencia Leis & Pablo M. Arnal

  2. Centro de Tecnología de Recursos Minerales y Cerámica—CONICET-CICPBA-UNLP, Cno. Centenario y 506, CC 49 (B1897ZCA), M.B. Gonnet, Prov, Buenos Aires, Argentina

    Florencia Leis, Leonel Andrés Long & Pablo M. Arnal

  3. CEQUINOR, (CONICET-UNLP), Bv. 120 N 1465, La Plata, Argentina

    Ana Laura Di Virgilio

Authors
  1. Florencia Leis
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  2. Leonel Andrés Long
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  3. Ana Laura Di Virgilio
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  4. Pablo M. Arnal
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Contributions

FL performed investigation. LAL performed formal analysis. ALDV performed conceptualization, funding acquisition, and writing—review and editing. PMA performed conceptualization, funding acquisition, and writing—original draft and review and editing.

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Correspondence to Pablo M. Arnal.

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This study is dedicated to Professor Dr. Ferdi Schüth on the occasion of his 60th birthday.

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Leis, F., Long, L.A., Di Virgilio, A.L. et al. Green chemical synthesis for well-defined and sharply distributed SiO2@FexOy particles. J Sol-Gel Sci Technol 98, 541–548 (2021). https://doi.org/10.1007/s10971-021-05521-1

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  • DOI: https://doi.org/10.1007/s10971-021-05521-1

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