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New magnetically responsive yeast-based biosorbent for the efficient removal of water-soluble dyes

2007Journal article Open access
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dc.contributor.authorSafarik, Ivo
dc.contributor.authorRego, Luis Filipe Teixeira
dc.contributor.authorBorovska, Marie
dc.contributor.authorMosiniewicz-Szablewskae, Ewa
dc.contributor.authorWeyda, Frantisek
dc.contributor.authorSafarikova, Mirka
dc.date.accessioned2010-10-11T21:32:31Z
dc.date.available2010-10-11T21:32:31Z
dc.date.issued2007
dc.description.abstractFodder yeast (Kluyveromyces fragilis) cells were magnetically modified by a contact with thewater-based magnetic fluid in order to prepare a new type of magnetically responsive biocomposite material. This procedure enabled a simple separation of modified cells by means of commercially available magnetic separators or strong permanent magnets. It allows using the prepared material as a new inexpensive magnetic affinity adsorbent for the removal of water-soluble dyes. Magnetically modified cells were characterized by means of magnetic and microscopy methods. Both isolated magnetic nanoparticles and aggregates of particles were present on the cell surface. The prepared material displayed a superparamagnetic behavior at room temperature, with a transition to a blocked state at TB 180K for the applied magnetic field H=50Oe. Seven dyes (crystal violet, amido black 10B, congo red, Saturn blue LBRR, Bismarck brown, acridine orange and safranin O) were used to study the adsorption process. The dyes adsorption could be described with the Langmuir isotherm. The maximum adsorption capacities ranged between 29.9 (amido black 10B) and 138.2 (safranin O) mg of dye per g of dried magnetically modified cells.por
dc.identifier.citationEnzyme and microbial technology". ISSN 0141-0229. 40: 2 (2007) 1551-1556por
dc.identifier.urihttp://hdl.handle.net/10400.14/2840
dc.language.isoengpor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG1-4M91NXJ-4&_user=10&_coverDate=05%2F02%2F2007&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1493813749&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=28ba4765aaab3e036a37d4506512d5e2&searchtype=apor
dc.subjectFodder yeastpor
dc.subjectKluyveromyces fragilispor
dc.subjectMagnetic fluidpor
dc.subjectMagnetic iron oxides nanoparticlespor
dc.subjectMagnetically modified cellspor
dc.subjectMagnetic separationpor
dc.titleNew magnetically responsive yeast-based biosorbent for the efficient removal of water-soluble dyespor
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspor
rcaap.typearticlepor

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