Sonochemical magnetite encapsulation in silica at low irradiation power

D. Ravelo-Acuña; J. A. Fuentes-García; H. T. Yee-Madeira; A. I. Diaz-Cano; G. F. Goya; J. Santoyo-Salazar

doi:10.1016/j.matlet.2019.04.073

Sonochemical magnetite encapsulation in silica at low irradiation power

D. Ravelo-Acuña, J. A. Fuentes-García, H. T. Yee-Madeira, A. I. Diaz-Cano, G. F. Goya, J. Santoyo-Salazar

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10 Scopus citations

Abstract

Magnetite nanoparticles (Fe₃O₄ NPs) coated with silicon dioxide (SiO₂) defined as Fe₃O₄@SiO₂ core-shells are a viable option for the development of addressable and multifunctional nanotargets; because of their superparamagnetic properties, molecular/biological anchor and biocompatibility in nanomedicine and theragnostics. In this work, we report Fe₃O₄@SiO₂ obtained by Stöber and sonochemical methods combination at low irradiation power (130 W, 1 h) with different volumes of tetraethylorthosilicate (TEOS). Fe₃O₄@SiO₂ results showed effects of diamagnetic silanol (Si-OH) layer as function of concentration over magnetic behavior.

Original language	English
Pages (from-to)	103-107
Number of pages	5
Journal	Materials Letters
Volume	250
DOIs	https://doi.org/10.1016/j.matlet.2019.04.073
State	Published - 1 Sep 2019

Keywords

Core-shell
FeO@SiO
SPIONs
Sonochemical

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10.1016/j.matlet.2019.04.073

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title = "Sonochemical magnetite encapsulation in silica at low irradiation power",

abstract = "Magnetite nanoparticles (Fe3O4 NPs) coated with silicon dioxide (SiO2) defined as Fe3O4@SiO2 core-shells are a viable option for the development of addressable and multifunctional nanotargets; because of their superparamagnetic properties, molecular/biological anchor and biocompatibility in nanomedicine and theragnostics. In this work, we report Fe3O4@SiO2 obtained by St{\"o}ber and sonochemical methods combination at low irradiation power (130 W, 1 h) with different volumes of tetraethylorthosilicate (TEOS). Fe3O4@SiO2 results showed effects of diamagnetic silanol (Si-OH) layer as function of concentration over magnetic behavior.",

keywords = "Core-shell, FeO@SiO, SPIONs, Sonochemical",

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TY - JOUR

T1 - Sonochemical magnetite encapsulation in silica at low irradiation power

AU - Ravelo-Acuña, D.

AU - Fuentes-García, J. A.

AU - Yee-Madeira, H. T.

AU - Diaz-Cano, A. I.

AU - Goya, G. F.

AU - Santoyo-Salazar, J.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Magnetite nanoparticles (Fe3O4 NPs) coated with silicon dioxide (SiO2) defined as Fe3O4@SiO2 core-shells are a viable option for the development of addressable and multifunctional nanotargets; because of their superparamagnetic properties, molecular/biological anchor and biocompatibility in nanomedicine and theragnostics. In this work, we report Fe3O4@SiO2 obtained by Stöber and sonochemical methods combination at low irradiation power (130 W, 1 h) with different volumes of tetraethylorthosilicate (TEOS). Fe3O4@SiO2 results showed effects of diamagnetic silanol (Si-OH) layer as function of concentration over magnetic behavior.

AB - Magnetite nanoparticles (Fe3O4 NPs) coated with silicon dioxide (SiO2) defined as Fe3O4@SiO2 core-shells are a viable option for the development of addressable and multifunctional nanotargets; because of their superparamagnetic properties, molecular/biological anchor and biocompatibility in nanomedicine and theragnostics. In this work, we report Fe3O4@SiO2 obtained by Stöber and sonochemical methods combination at low irradiation power (130 W, 1 h) with different volumes of tetraethylorthosilicate (TEOS). Fe3O4@SiO2 results showed effects of diamagnetic silanol (Si-OH) layer as function of concentration over magnetic behavior.

KW - Core-shell

KW - FeO@SiO

KW - SPIONs

KW - Sonochemical

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DO - 10.1016/j.matlet.2019.04.073

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SN - 0167-577X

VL - 250

SP - 103

EP - 107

JO - Materials Letters

JF - Materials Letters

ER -

Sonochemical magnetite encapsulation in silica at low irradiation power

Abstract

Keywords

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