A Magnetically Separable, Highly Stable Enzyme System Based on Nanocomposites of Enzymes and Magnetic Nanoparticles Shipped in Hierarchically Ordered, Mesocellular, Mesoporous Silica

A Magnetically Separable, Highly Stable Enzyme System Based on Nanocomposites of Enzymes and Magnetic Nanoparticles Shipped in Hierarchically Ordered, Mesocellular, Mesoporous Silica

Multifunctional nanocomposites (M‐CLEAs) of enzymes and magnetic nanoparticles (M‐NPs) were fabricated in hierarchically ordered, mesocellular, mesoporous silica (HMMS; see Figure) by a simple process involving the co‐adsorption of enzyme molecules and magnetic nanoparticles into HMMS followed by gl...

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Veröffentlicht in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2005-12, Vol.1 (12), p.1203-1207
Hauptverfasser: Kim, Jungbae, Lee, Jinwoo, Na, Hyon Bin, Kim, Byoung Chan, Youn, Jong Kyu, Kwak, Ja Hun, Moon, Karam, Lee, Eunwoong, Kim, Jaeyun, Park, Jongnam, Dohnalkova, Alice, Park, Hyun Gyu, Gu, Man Bock, Chang, Ho Nam, Grate, Jay W., Hyeon, Taeghwan
Format: Artikel
Sprache:eng
Schlagworte:
BASIC BIOLOGICAL SCIENCES
Catalysis
Crystallization
Environmental Molecular Sciences Laboratory
enzyme catalysis
enzyme stabilization
Enzymes - chemistry
IMMOBILIZED ENZYMES
IRON OXIDES
LIFETIME
magnetic nanoparticles
magnetic separation
MAGNETIC SEPARATORS
Magnetics
mesoporous materials
mesoporous silica
Microscopy, Electron, Transmission
nanobiotechnology
Nanocomposites - chemistry
Nanoparticles - chemistry
nanoscale enzyme reactors
NANOSTRUCTURES
Nanotubes
Peptide Hydrolases - chemistry
POROSITY
SEPARATION PROCESSES
SILICA
Silicon Dioxide - chemistry
STABILITY
SURFACE AREA
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Zusammenfassung:Multifunctional nanocomposites (M‐CLEAs) of enzymes and magnetic nanoparticles (M‐NPs) were fabricated in hierarchically ordered, mesocellular, mesoporous silica (HMMS; see Figure) by a simple process involving the co‐adsorption of enzyme molecules and magnetic nanoparticles into HMMS followed by glutaraldehyde (GA) treatment. These nanocomposites are magnetically separable and highly stable and active. In particular, M‐CLEA–lipase shows no decrease of lipase activity at all in the presence of proteases.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.200500245