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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Simple synthesis of functionalized superparamagnetic magnetite/silica core/shell nanoparticles and their application as magnetically separable high-performance biocatalysts

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dc.contributor.author Lee, Jinwoo -
dc.contributor.author Lee, Youjin -
dc.contributor.author Youn, Jong Kyu -
dc.contributor.author Bin Na, Hyon -
dc.contributor.author Yu, Taekyung -
dc.contributor.author Kim, Hwan -
dc.contributor.author Lee, Sang-Mok -
dc.contributor.author Koo, Yoon-Mo -
dc.contributor.author Kwak, Ja Hun -
dc.contributor.author Park, Hyun Gyu -
dc.contributor.author Chang, Ho Nam -
dc.contributor.author Hwang, Misun -
dc.contributor.author Park, Je-Geun -
dc.contributor.author Kim, Jungbae -
dc.contributor.author Hyeon, Taeghwan -
dc.date.accessioned 2015-07-16T00:41:47Z -
dc.date.available 2015-07-16T00:41:47Z -
dc.date.created 2015-07-15 -
dc.date.issued 2008-01 -
dc.identifier.citation SMALL, v.4, no.1, pp.143 - 152 -
dc.identifier.issn 1613-6810 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/12127 -
dc.description.abstract Uniformly sized silica-coated magnetic nanoparticles (magnetite@silica) are synthesized in a simple one-pot process using reverse micelles as nanoreactors. The core diameter of the magnetic nanoparticles is easily controlled by adjusting the w value ([polar solvent]/[surfactant]) in the reverse-micelle solution, and the thickness of the silica shell is easily controlled by varying the amount of tetraethyl orthosilicate added after the synthesis of the magnetite cores. Several grams of monodisperse magnetite@silica nanoparticles can be synthesized without going through any size-selection process. When crosslinked enzyme molecules form clusters on the surfaces of the magnetite@silica nanoparticles, the resulting hybrid composites are magnetically separable, highly active, and stable under harsh shaking conditions for more than 15 days. Conversely, covalently attached enzymes on the surface of the magnetite@silica nanoparticles are deactivated under the same conditions -
dc.description.statementofresponsibility open -
dc.language ENG -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.subject HISTIDINE-TAGGED PROTEINS -
dc.subject MESOPOROUS SILICA -
dc.subject COBALT NANORODS -
dc.subject NANOCOMPOSITES -
dc.subject NANOCRYSTALS -
dc.subject SIZE -
dc.title Simple synthesis of functionalized superparamagnetic magnetite/silica core/shell nanoparticles and their application as magnetically separable high-performance biocatalysts -
dc.title.alternative Simple synthesis of functionalized superparamagnetic magnetite/silica core/shell nanoparticles and their application as magnetically separable high-performance biocatalysts -
dc.type ARTICLE -
dc.identifier.scopusid 2-s2.0-38849162786 -
dc.identifier.wosid 000253778100022 -
dc.type.rims ART -
dc.description.wostc 204 *
dc.description.scopustc 206 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1002/smll.200700456 -
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