Facile synthesis of QD-anchored composite particles with magnetite cluster cores ((Fe3O4)-Fe-n@SiO2@QDs)
DC Field | Value | Language |
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dc.contributor.author | Oh, Hang-Deok | - |
dc.contributor.author | Lee, Sang-Wha | - |
dc.date.available | 2020-02-28T23:45:42Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2013-06 | - |
dc.identifier.issn | 0025-5408 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/14504 | - |
dc.description.abstract | Magnetism-controlled fluorescent composite particles ((Fe3O4)-Fe-n@SiO2@QDs) were prepared as QD-anchored silica nanoparticles with magnetite cluster cores. First, citrate-capped magnetites (C-Fe3O4) were prepared by the co-precipitation method and subsequently complexed with 3-aminopropyl-trimethoxysilane (APTMS) at room temperature, consequently leading to the formation of magnetite clusters (A-(Fe3O4)-Fe-n) with alkoxy terminated interfaces. The sol-gel reaction between A-(Fe3O4)-Fe-n and tetraethoxysilane (TEOS) produced the core-shell (Fe3O4)-Fe-n@SiO2. The resulting core-shell particles exhibited superparamagnetic properties and controllable magnetism simply by adjusting the thickness of nonmagnetic silica layer. After then, amine-terminated (Fe3O4)-Fe-n@SiO2 (NH2-(Fe3O4)-Fe-n@SiO2) was conjugated with carboxy quantum dots (QDs) using an EDC coupling agent. The QD conjugation with NH2-(Fe3O4)-Fe-n@SiO2 of lower pH exhibited the higher photoluminescence (PL) intensity, and the resulting composite particles ((Fe3O4)-Fe-n@SiO2@QDs) can be a useful biomedical agent. This chemical strategy can be further applied to prepare the core-shell magnetic nanostructure with various oxide layers for specific applications. (C) 2013 Elsevier Ltd. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | MATERIALS RESEARCH BULLETIN | - |
dc.subject | QUANTUM DOTS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | FABRICATION | - |
dc.title | Facile synthesis of QD-anchored composite particles with magnetite cluster cores ((Fe3O4)-Fe-n@SiO2@QDs) | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000318462200033 | - |
dc.identifier.doi | 10.1016/j.materresbull.2013.02.053 | - |
dc.identifier.bibliographicCitation | MATERIALS RESEARCH BULLETIN, v.48, no.6, pp.2191 - 2195 | - |
dc.identifier.scopusid | 2-s2.0-84875925430 | - |
dc.citation.endPage | 2195 | - |
dc.citation.startPage | 2191 | - |
dc.citation.title | MATERIALS RESEARCH BULLETIN | - |
dc.citation.volume | 48 | - |
dc.citation.number | 6 | - |
dc.contributor.affiliatedAuthor | Oh, Hang-Deok | - |
dc.contributor.affiliatedAuthor | Lee, Sang-Wha | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Magnetic materials | - |
dc.subject.keywordAuthor | Nanostructures | - |
dc.subject.keywordAuthor | Sot-gel chemistry | - |
dc.subject.keywordAuthor | Luminescence | - |
dc.subject.keywordAuthor | Magnetic properties | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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