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Low-temperature magnetic modification of sensitive biological materials
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SYSNO ASEP 0443476 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Low-temperature magnetic modification of sensitive biological materials Tvůrce(i) Pospišková, K. (CZ)
Šafařík, Ivo (UEK-B) RID, SAIZdroj.dok. Materials Letters. - : ELSEVIER SCIENCE BV - ISSN 0167-577X
Roč. 142, mar (2015), s. 184-188Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova magnetic iron oxides particles ; microwave-assisted synthesis ; low-temperature magnetic modification ; immobilized enzymes Vědní obor RIV BO - Biofyzika CEP LD13021 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora RVO:67179843 - RVO:67179843 UT WOS 000349728500050 EID SCOPUS 84919473864 DOI 10.1016/j.matlet.2014.11.163 Anotace Nano- and microparticles consisting of magnetic iron oxides were prepared by microwave-assisted synthesis from ferrous sulfate. They were applied to the direct magnetic modification of sensitive and labile non-magnetic biomaterials (such as plant and seagrass based materials and enzymes immobilized on non-magnetic carriers) at temperatures -20 and -80 degrees C. These conditions warrant stable magnetic modification of non-magnetic biomaterials, e.g. cellulose, lignocellulose, or starch based ones. We have also magnetically modified enzymes immobilized on non-magnetic carriers, for example lipase immobilized on cellulose powder and glucose isomerase immobilized on solid carrier granules. It was observed that a substantial fraction of the activity is maintained by this method and that all the magnetically modified enzymes were stable during eight repeated reaction cycles with only a negligible decrease in activity over time. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2016
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