DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, SM | ko |
dc.contributor.author | Lee, KB | ko |
dc.contributor.author | Kim, DJ | ko |
dc.contributor.author | Choi, Insung | ko |
dc.date.accessioned | 2009-11-19T08:55:17Z | - |
dc.date.available | 2009-11-19T08:55:17Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-09 | - |
dc.identifier.citation | NANOTECHNOLOGY, v.17, no.18, pp.4719 - 4725 | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.uri | http://hdl.handle.net/10203/12936 | - |
dc.description.abstract | The encapsulation of individual nanoparticles has gained great attention as a method for both stabilizing nanoparticles and tailoring their surface properties. In particular, the encapsulation of nanoparticles with silica shells is advantageous for bioconjugation and applications to (nano)biotechnology. Herein we report a method for constructing gold nanoparticle (AuNP)/silica core/shell hybrid structures by biomimetic silicification of silicic acids. The procedure consists of surface-initiated, atom transfer radical polymerization of 2-(dimethylamino)ethyl methacrylate (DMAEMA) from AuNPs and biomimetic polycondensation of silicic acids by using poly(DMAEMA) as a synthetic counterpart for silaffins that are found in diatoms. The resulting AuNP/silica hybrids were characterized by Fourier transform infrared spectroscopy, energy dispersive x-ray spectroscopy, UV-vis spectroscopy and transmission electron microscopy. In addition, the immobilization of biological ligands onto the hybrids was investigated for potential applications to biotechnology. As a model ligand, biotin was attached onto the AuNP/silica hybrids through substitution reaction and Michael addition reaction, and the attachment was confirmed by fluorescence microscopy after complexation with fluorescein-conjugated streptavidin. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | TRANSFER RADICAL POLYMERIZATION | - |
dc.subject | SURFACE-INITIATED POLYMERIZATION | - |
dc.subject | SILICA NANOSPHERE FORMATION | - |
dc.subject | SEMICONDUCTOR NANOCRYSTALS | - |
dc.subject | PHASE-SEPARATION | - |
dc.subject | DIATOM BIOSILICA | - |
dc.subject | QUANTUM DOTS | - |
dc.subject | MONOLAYERS | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | MONODISPERSE | - |
dc.title | Biomimetic approach to the formation of gold nanoparticle/silica core/shell structures and subsequent bioconjugation | - |
dc.type | Article | - |
dc.identifier.wosid | 000241157000032 | - |
dc.identifier.scopusid | 2-s2.0-33748352130 | - |
dc.type.rims | ART | - |
dc.citation.volume | 17 | - |
dc.citation.issue | 18 | - |
dc.citation.beginningpage | 4719 | - |
dc.citation.endingpage | 4725 | - |
dc.citation.publicationname | NANOTECHNOLOGY | - |
dc.identifier.doi | 10.1088/0957-4484/17/18/032 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Choi, Insung | - |
dc.contributor.nonIdAuthor | Kang, SM | - |
dc.contributor.nonIdAuthor | Lee, KB | - |
dc.contributor.nonIdAuthor | Kim, DJ | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TRANSFER RADICAL POLYMERIZATION | - |
dc.subject.keywordPlus | SURFACE-INITIATED POLYMERIZATION | - |
dc.subject.keywordPlus | SILICA NANOSPHERE FORMATION | - |
dc.subject.keywordPlus | SEMICONDUCTOR NANOCRYSTALS | - |
dc.subject.keywordPlus | PHASE-SEPARATION | - |
dc.subject.keywordPlus | DIATOM BIOSILICA | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | MONOLAYERS | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | MONODISPERSE | - |
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