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Preparation and characterization of functional silica hybrid magnetic nanoparticles.

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Title: Preparation and characterization of functional silica hybrid magnetic nanoparticles.
Authors: Digigow, Reinaldo G.1,2, Dechézelles, Jean-François1, Dietsch, Hervé1, Geissbühler, Isabelle2, Vanhecke, Dimitri1, Geers, Christoph1, Hirt, Ann M.3, Rothen-Rutishauser, Barbara1, Petri-Fink, Alke1,2 alke.fink@unifr.ch
Source: Journal of Magnetism & Magnetic Materials. Aug2014, Vol. 362, p72-79. 8p.
Subjects: Chemical sample preparation, Silica, Magnetic nanoparticles, Ethyl silicate, Amino group, Superparamagnetic materials
Abstract: Abstract: We report on the synthesis and characterization of functional silica hybrid magnetic nanoparticles (SHMNPs). The co-condensation of 3-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS) in presence of superparamagnetic iron oxide nanoparticles (SPIONs) leads to hybrid magnetic silica particles that are surface-functionalized with primary amino groups. In this work, a comprehensive synthetic study is carried out and completed by a detailed characterization of hybrid particles׳ size and morphology, surface properties, and magnetic responses using different techniques. Depending on the mass ratio of SPIONs and the two silanes (TEOS and APTES), we were able to adjust the number of surface amino groups and tune the magnetic properties of the superparamagnetic hybrid particles. [Copyright &y& Elsevier]
Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 95723754
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Preparation and characterization of functional silica hybrid magnetic nanoparticles.
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  Data: <searchLink fieldCode="AR" term="%22Digigow%2C+Reinaldo+G%2E%22">Digigow, Reinaldo G.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Dechézelles%2C+Jean-François%22">Dechézelles, Jean-François</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dietsch%2C+Hervé%22">Dietsch, Hervé</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Geissbühler%2C+Isabelle%22">Geissbühler, Isabelle</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Vanhecke%2C+Dimitri%22">Vanhecke, Dimitri</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Geers%2C+Christoph%22">Geers, Christoph</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hirt%2C+Ann+M%2E%22">Hirt, Ann M.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Rothen-Rutishauser%2C+Barbara%22">Rothen-Rutishauser, Barbara</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Petri-Fink%2C+Alke%22">Petri-Fink, Alke</searchLink><relatesTo>1,2</relatesTo><i> alke.fink@unifr.ch</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Magnetism+%26+Magnetic+Materials%22">Journal of Magnetism & Magnetic Materials</searchLink>. Aug2014, Vol. 362, p72-79. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Chemical+sample+preparation%22">Chemical sample preparation</searchLink><br /><searchLink fieldCode="DE" term="%22Silica%22">Silica</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+nanoparticles%22">Magnetic nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Ethyl+silicate%22">Ethyl silicate</searchLink><br /><searchLink fieldCode="DE" term="%22Amino+group%22">Amino group</searchLink><br /><searchLink fieldCode="DE" term="%22Superparamagnetic+materials%22">Superparamagnetic materials</searchLink>
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  Data: Abstract: We report on the synthesis and characterization of functional silica hybrid magnetic nanoparticles (SHMNPs). The co-condensation of 3-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS) in presence of superparamagnetic iron oxide nanoparticles (SPIONs) leads to hybrid magnetic silica particles that are surface-functionalized with primary amino groups. In this work, a comprehensive synthetic study is carried out and completed by a detailed characterization of hybrid particles׳ size and morphology, surface properties, and magnetic responses using different techniques. Depending on the mass ratio of SPIONs and the two silanes (TEOS and APTES), we were able to adjust the number of surface amino groups and tune the magnetic properties of the superparamagnetic hybrid particles. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jmmm.2014.03.026
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        Text: English
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        PageCount: 8
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      – SubjectFull: Chemical sample preparation
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      – SubjectFull: Silica
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      – SubjectFull: Magnetic nanoparticles
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      – SubjectFull: Ethyl silicate
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      – SubjectFull: Amino group
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      – SubjectFull: Superparamagnetic materials
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      – TitleFull: Preparation and characterization of functional silica hybrid magnetic nanoparticles.
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              Text: Aug2014
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              Y: 2014
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