Iron oxide-silica nanocomposites yielded by chemical route and sol–gel method
Magnetic nanoparticles yielded by chemical route were surface modified with stabilizing agents being further coated by sol–gel method with silica shell to be used for various applications. Iron oxide magnetic cores were dispersed in water by single citrate layer and, respectively, by double oleate h...
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| Veröffentlicht in: | Journal of sol-gel science and technology 2016-09, Vol.79 (3), p.457-465 |
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| container_title | Journal of sol-gel science and technology |
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| creator | Puscasu, E. Sacarescu, L. Lupu, N. Grigoras, M. Oanca, G. Balasoiu, M. Creanga, D. |
| description | Magnetic nanoparticles yielded by chemical route were surface modified with stabilizing agents being further coated by sol–gel method with silica shell to be used for various applications. Iron oxide magnetic cores were dispersed in water by single citrate layer and, respectively, by double oleate hydrophilic coating. Sol–gel reaction with tetraethylorthosilicate provided further coating with silica that confers increased reactivity for ligand coupling. Microstructural and magnetic properties were investigated by standard methods evidencing nanometric size, good crystallinity, and superparamagnetic behavior. Comparative analysis evidenced similar crystallite size for both citrate- and oleate-coated magnetic nanoparticles, while granularity was changed after silica adding. Saturation magnetization diminished less for oleate-stabilized nanoparticles than for citrate-stabilized ones after silica coating and moderate thermal treatment. Such prepared magnetic nanocomposites could have possible utilization as magnetic vectors for targeted biomolecules.
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| doi_str_mv | 10.1007/s10971-016-3996-1 |
| format | Article |
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Graphical Abstract</description><subject>Biomolecules</subject><subject>Ceramics</subject><subject>Chemistry and Materials Science</subject><subject>Coating</subject><subject>colloids</subject><subject>Composites</subject><subject>Crystallites</subject><subject>etc.</subject><subject>fibers</subject><subject>Glass</subject><subject>Heat treatment</subject><subject>Inorganic Chemistry</subject><subject>Iron oxides</subject><subject>Ligands</subject><subject>Magnetic cores</subject><subject>Magnetic properties</subject><subject>Magnetic saturation</subject><subject>Magnetization</subject><subject>Materials Science</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Nanotechnology</subject><subject>Natural Materials</subject><subject>Optical and Electronic Materials</subject><subject>Organic chemistry</subject><subject>Original Paper: Nano-structured materials (particles</subject><subject>Silica gel</subject><subject>Silicon dioxide</subject><subject>Sol gel process</subject><subject>Sol-gel processes</subject><issn>0928-0707</issn><issn>1573-4846</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kc1qGzEURkVpoK6bB8hO0E03aq40-l0Wkx9DIJt2LTSjO_aYmZErjSHe9R36hn2SjHEXIZCs7uacjwuHkCsO3zmAuS4cnOEMuGaVc5rxD2TBlamYtFJ_JAtwwjIwYD6Rz6XsAEBJbhbkcZ3TSNNTF5GVru-aQMcwpiYN-1S6CQs9dthHjLQ-0maLw0z0NKfDhDSMkZbU__vzd4M9HXDapviFXLShL3j5_y7Jr9ubn6t79vB4t179eGCN5HJivEXnbIvGBidqG02jtTJa16BiqEBI2cbWRWFDpepWAbQYQFWijrMetaqW5Nt5d5_T7wOWyQ9dabDvw4jpUDy3SlVGaSlm9OsrdJcOeZy_80Iop5TQ0r5HcWvBWgHGzRQ_U01OpWRs_T53Q8hHz8GfQvhzCD-H8KcQns-OODtlZscN5hfLb0rPWoqKtg</recordid><startdate>20160901</startdate><enddate>20160901</enddate><creator>Puscasu, E.</creator><creator>Sacarescu, L.</creator><creator>Lupu, N.</creator><creator>Grigoras, M.</creator><creator>Oanca, G.</creator><creator>Balasoiu, M.</creator><creator>Creanga, D.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160901</creationdate><title>Iron oxide-silica nanocomposites yielded by chemical route and sol–gel method</title><author>Puscasu, E. ; Sacarescu, L. ; Lupu, N. ; Grigoras, M. ; Oanca, G. ; Balasoiu, M. ; Creanga, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c414t-1fe998fe78a92b8d7c665766b05da30244fdf9d28a35bf500fea0532bd414d653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Biomolecules</topic><topic>Ceramics</topic><topic>Chemistry and Materials Science</topic><topic>Coating</topic><topic>colloids</topic><topic>Composites</topic><topic>Crystallites</topic><topic>etc.</topic><topic>fibers</topic><topic>Glass</topic><topic>Heat treatment</topic><topic>Inorganic Chemistry</topic><topic>Iron oxides</topic><topic>Ligands</topic><topic>Magnetic cores</topic><topic>Magnetic properties</topic><topic>Magnetic saturation</topic><topic>Magnetization</topic><topic>Materials Science</topic><topic>Nanocomposites</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>Nanotechnology</topic><topic>Natural Materials</topic><topic>Optical and Electronic Materials</topic><topic>Organic chemistry</topic><topic>Original Paper: Nano-structured materials (particles</topic><topic>Silica gel</topic><topic>Silicon dioxide</topic><topic>Sol gel process</topic><topic>Sol-gel processes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Puscasu, E.</creatorcontrib><creatorcontrib>Sacarescu, L.</creatorcontrib><creatorcontrib>Lupu, N.</creatorcontrib><creatorcontrib>Grigoras, M.</creatorcontrib><creatorcontrib>Oanca, G.</creatorcontrib><creatorcontrib>Balasoiu, M.</creatorcontrib><creatorcontrib>Creanga, D.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection (ProQuest)</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of sol-gel science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Puscasu, E.</au><au>Sacarescu, L.</au><au>Lupu, N.</au><au>Grigoras, M.</au><au>Oanca, G.</au><au>Balasoiu, M.</au><au>Creanga, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron oxide-silica nanocomposites yielded by chemical route and sol–gel method</atitle><jtitle>Journal of sol-gel science and technology</jtitle><stitle>J Sol-Gel Sci Technol</stitle><date>2016-09-01</date><risdate>2016</risdate><volume>79</volume><issue>3</issue><spage>457</spage><epage>465</epage><pages>457-465</pages><issn>0928-0707</issn><eissn>1573-4846</eissn><abstract>Magnetic nanoparticles yielded by chemical route were surface modified with stabilizing agents being further coated by sol–gel method with silica shell to be used for various applications. Iron oxide magnetic cores were dispersed in water by single citrate layer and, respectively, by double oleate hydrophilic coating. Sol–gel reaction with tetraethylorthosilicate provided further coating with silica that confers increased reactivity for ligand coupling. Microstructural and magnetic properties were investigated by standard methods evidencing nanometric size, good crystallinity, and superparamagnetic behavior. Comparative analysis evidenced similar crystallite size for both citrate- and oleate-coated magnetic nanoparticles, while granularity was changed after silica adding. Saturation magnetization diminished less for oleate-stabilized nanoparticles than for citrate-stabilized ones after silica coating and moderate thermal treatment. Such prepared magnetic nanocomposites could have possible utilization as magnetic vectors for targeted biomolecules.
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| subjects | Biomolecules Ceramics Chemistry and Materials Science Coating colloids Composites Crystallites etc. fibers Glass Heat treatment Inorganic Chemistry Iron oxides Ligands Magnetic cores Magnetic properties Magnetic saturation Magnetization Materials Science Nanocomposites Nanoparticles Nanostructure Nanotechnology Natural Materials Optical and Electronic Materials Organic chemistry Original Paper: Nano-structured materials (particles Silica gel Silicon dioxide Sol gel process Sol-gel processes |
| title | Iron oxide-silica nanocomposites yielded by chemical route and sol–gel method |
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