Novel magnetic nanoparticles coated by benzene- and β-cyclodextrin-bearing dextran, and the sorption of polycyclic aromatic hydrocarbon.
We present the synthesis of novel magnetic nanoparticles functionalized by benzene- and β-cyclodextrin-derivatized dextran. The grafting strategy was based on the [alkynyl-iron] cluster in the modified dextrans, which were prepared by click reaction from alkyne-modified dextran and benzyl azide or mono-6-O-deoxy-monoazido β-cyclodextrin. Characterization was then carried out by thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and vibrating sample magnetometry. Using the developed magnetic nanoparticles, the potential for removing polycyclic aromatic hydrocarbons such as phenanthrene and pyrene by sorption onto the nanomaterials was assessed. In the sorption, pi-stacking interactions of the benzene-derivatized dextran and host-guest chemistry of the β-cyclodextrin-derivatized dextran were considered to be significant. Furthermore, the polysaccharide derivative-coated magnetic adsorbents could be recovered by an external magnet for reuse.
Institute for Ubiquitous Information Technology and Applications (UBITA) & Center for Biotechnology Research in UBITA (CBRU), Konkuk University, Seoul 143-701, South Korea.
Eunae
E
Cho
The Danish Polymer Centre, Department of Chemical and Biochemical Engineering Danmarks Tekniske Universitet (DTU), 2880 Kgs, Lyngby, Denmark.
Muhammad Nazir
MN
Tahir
Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB) & Center for Biotechnology Research in UBITA (CBRU), Konkuk University, 1 Hwayangdong, Gwangjin-gu, Seoul 143-701, South Korea.
Jae Min
JM
Choi
Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB) & Center for Biotechnology Research in UBITA (CBRU), Konkuk University, 1 Hwayangdong, Gwangjin-gu, Seoul 143-701, South Korea.
Hwanhee
H
Kim
Departments of Bacteriology and Genetics, University of Wisconsin, Madison, WI 53706, USA.
Jae-Hyuk
JH
Yu
Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB) & Center for Biotechnology Research in UBITA (CBRU), Konkuk University, 1 Hwayangdong, Gwangjin-gu, Seoul 143-701, South Korea. Electronic address: shjung@konkuk.ac.kr.
Seunho
S
Jung
D000327:Adsorption; D001554:Benzene / Q000737:chemistry*; D004785:Environmental Pollutants / Q000737:chemistry* / Q000302:isolation & purification; D059346:Magnets / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry* / Q000302:isolation & purification; D047392:beta-Cyclodextrins / Q000737:chemistry*
D004785:Environmental Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D047392:beta-Cyclodextrins; D001554:Benzene; C031215:betadex
Benzene derivatized dextran; Magnetic nanoparticle; Polycyclic aromatic hydrocarbons; Sorption; β-Cyclodextrin derivatized dextran