Novel Magnetically Separable Mesoporous Fe2O3@SBA-15 Nanocomposite with Fully Open Mesochannels for Protein Immobilization

被引：38

作者：

Lin, Hsing-An ^{[1
]}

Liu, Chun-Hsia ^{[1
]}

Huang, Wei-Chia ^{[1
]}

Lion, Sz-Chian ^{[2
]}

Chu, Ming-Wen ^{[2
]}

Chen, Cheng-Hsuan ^{[2
]}

Lee, Jyh-Fu ^{[3
]}

Yang, Chia-Min ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan

[2] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10617, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 21期

关键词：

D O I：

10.1021/cm800551h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

Magnetically separable Fe2O3@SBA-15 nanocomposite with fully open mesochannels and bifunctional surface properties was prepared by selective deposition of iron oxide nanoparticles in the micropores of mesoporous SBA-15 silica with hydrophobic mesopore surface. The iron oxide nanoparticles embedded in the micropores were estimated to be composed of 67% alpha-Fe2O3 and 33% gamma-Fe2O3, and the nanocomposite was found to exhibit superparamagnetic properties. With the bifunctional surface properties, the Fe2O3@SBA-15 nanocomposite showed enhanced adsorption capacity for cytochrome c and a maximum saturated uptake at neutral solution pH.

引用

页码：6617 / 6622

页数：6

共 54 条

[1]

Utilization of enzymes for environmental applications [J].

Ahuja, SK ;

Ferreira, GM ;

Moreira, AR .

CRITICAL REVIEWS IN BIOTECHNOLOGY, 2004, 24 (2-3) :125-154

[2]

A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[3]

INFLUENCE OF CRYSTALLITE SIZE ON MAGNETIC PROPERTIES OF ACICULAR GAMMA-FE2O3 PARTICLES [J].

BERKOWIT.AE ;

SCHUELE, WJ ;

FLANDERS, PJ .

JOURNAL OF APPLIED PHYSICS, 1968, 39 (2P2) :1261-&

[4]

pH-dependent local structure of ferricytochrome c studied by x-ray absorption spectroscopy [J].

Boffi, F ;

Bonincontro, A ;

Cinelli, S ;

Castellano, AC ;

De Francesco, A ;

Della Longa, S ;

Girasole, M ;

Onori, G .

BIOPHYSICAL JOURNAL, 2001, 80 (03) :1473-1479

[5]

INTERFACIAL ELECTROCHEMISTRY OF CYTOCHROME-C AT TIN OXIDE, INDIUM OXIDE, GOLD, AND PLATINUM-ELECTRODES [J].

BOWDEN, EF ;

HAWKRIDGE, FM ;

BLOUNT, HN .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 161 (02) :355-376

[6]

BIODEHALOGENATION - REACTIONS OF CYTOCHROME-P-450 WITH POLYHALOMETHANES [J].

CASTRO, CE ;

WADE, RS ;

BELSER, NO .

BIOCHEMISTRY, 1985, 24 (01) :204-210

[7]

Ordered mesoporous materials [J].

Ciesla, U ;

Schüth, F .

MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 27 (2-3) :131-149

[8]

An X-ray absorption spectroscopy study of the FeK edge in nanosized maghemite and in Fe2O3-SiO2 nanocomposites [J].

Corrias, A ;

Ennas, G ;

Mountjoy, G ;

Paschina, G .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (05) :1045-1050

[9]

Mechanistic and structural features of protein adsorption onto mesoporous silicates [J].

Deere, J ;

Magner, E ;

Wall, JG ;

Hodnett, BK .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7340-7347

[10]

Del Bianco L, 2005, NAN SCI TEC, P217

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