ORBi: Georgieva Nelly - Cadmium and copper absorption mediated by a poly(vinyl alcohol)-b-polyacrylonitrile based micelle/Trichosporon cutaneum cell system

Reference : Cadmium and copper absorption mediated by a poly(vinyl alcohol)-b-polyacrylonitrile base...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/95089

Title :	Cadmium and copper absorption mediated by a poly(vinyl alcohol)-b-polyacrylonitrile based micelle/Trichosporon cutaneum cell system
Language :	English
Author, co-author :	Georgieva, Nelly [University of Chemical Technology and Metallurgy, Sofia, Bulgaria > Department of Biotechnology > > >]
	Bryaskova, Rayna [University of Chemical Technology and Metallurgy, Sofia, Bulgaria > Department of Polymer Engineering > > >]
	Debuigne, Antoine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Detrembleur, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	5-Jun-2010
Journal title :	Journal of Applied Polymer Science
Publisher :	Wiley
Volume :	116
Issue/season :	5
Pages :	2970-2975
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	0021-8995
e-ISSN :	1097-4628
City :	New York
Country :	NY
Abstract :	[en] The micelles of a recently synthesized copolymer of poly(vinyl alcohol)-b-polyacrylonitrile added to the growth solution of the filamentous yeast Trichosporon cutaneum strain R57 led to the formation of a binary system consisting of micelles and cells. The resulting micelle/cell system was studied as a model for the removal of toxic concentrations of heavy-metal ions (cadmium and copper) from aqueous solutions. The ion-removal efficiency mediated by this system was higher than for free-floating cells. The copper-removal efficiency from the solution reached a level of 65% after 24 h of cultivation, whereas the cadmium-removal efficiency reached 62% after 6 h of growth. For comparison, the free-floating cells removed 42% of copper and only 38% of cadmium from the solutions. The effects of surface interactions between the cells and polymer micelles on the biosorption capacity of the cells are discussed in the article.
Research units :	Center for Education and Research on Macromolecules (CERM)
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/95089
DOI :	10.1002/app.31812
Other URL :	http://onlinelibrary.wiley.com/doi/10.1002/app.31812/pdf

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Restricted access	Debuigne A 2010 J Appl Polym Sci 116, 2970.pdf		Publisher postprint	224.47 kB	Request copy

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