covalent anchoring of chloroperoxidase and glucose oxidase on the mesoporous molecular sieve sba-15共价结合chloroperoxidase和葡萄糖氧化酶的介孔分子筛sba-15.pdfVIP

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covalent anchoring of chloroperoxidase and glucose oxidase on the mesoporous molecular sieve sba-15共价结合chloroperoxidase和葡萄糖氧化酶的介孔分子筛sba-15.pdf

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covalent anchoring of chloroperoxidase and glucose oxidase on the mesoporous molecular sieve sba-15共价结合chloroperoxidase和葡萄糖氧化酶的介孔分子筛sba-15

Int. J. Mol. Sci. 2010, 11, 762-778; doi:10.3390/ijm OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 /journal/ijms Article Covalent Anchoring of Chloroperoxidase and Glucose Oxidase on the Mesoporous Molecular Sieve SBA-15 Dirk Jung, Carsten Streb and Martin Hartmann * Erlangen Catalysis Resource Center, Universität Erlangen Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany; E-Mails: dirk.jung@ecrc.uni-erlangen.de (D.J.); carsten.streb@chemie.uni-erlangen.de (C.S.) * Author to whom correspondence should be addressed; E-Mail: martin.hartmann@ecrc.uni-erlangen.de; Tel.: +49-9131-852-8792; Fax: +49-9131-852-7421. Received: 4 January 2010; in revised form: 9 February 2010 / Accepted: 9 February 2010 / Published: 24 February 2010 Abstract: Functionalization of porous solids plays an important role in many areas, including heterogeneous catalysis and enzyme immobilization. In this study, large-pore ordered mesoporous SBA-15 molecular sieves were synthesized with tetraethyl orthosilicate (TEOS) in the presence of the non-ionic triblock co-polymer Pluronic P123 under acidic conditions. These materials were grafted with 3-aminopropyltrimethoxysilane (ATS), 3-glycidoxypropyltrimethoxysilane (GTS) and with 3-aminopropyltrimethoxysilane and glutaraldehyde (GA-ATS) in order to provide covalent anchoring points for enzymes. The samples were characterized by nitr