Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step
Joint Authors
Saade, Hened
Osuna, Yolanda
Gregorio-Jauregui, Karla M.
Gaona-Lozano, J. Gerardo
de la Garza-Rodríguez, Iliana M.
Ilyna, Anna
Barriga-Castro, Enrique Díaz
López, Raúl G.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Chitosan-coated magnetic nanoparticles (CMNP) were obtained at 50°C in a one-step method comprising coprecipitation in the presence of low chitosan content.
CMNP showed high magnetization and superparamagnetism.
They were composed of a core of 9.5 nm in average diameter and a very thin chitosan layer in accordance with electron microscopy measurements.
The results from Fourier transform infrared spectrometry demonstrated that CMNP were obtained and those from thermogravimetric analysis allowed to determine that they were composed of 95 wt% of magnetic nanoparticles and 5 wt% of chitosan.
67% efficacy in the Pb+2 removal test indicated that only 60% of amino groups on CMNP surface bound to Pb, probably due to some degree of nanoparticle flocculation during the redispersion.
The very low weight ratio chitosan to magnetic nanoparticles obtained in this study, 0.053, and the high yield of the precipitation reactions (≈97%) are noticeable.
American Psychological Association (APA)
Gregorio-Jauregui, Karla M.& Gaona-Lozano, J. Gerardo& de la Garza-Rodríguez, Iliana M.& Ilyna, Anna& Barriga-Castro, Enrique Díaz& Saade, Hened…[et al.]. 2012. Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-1029181
Modern Language Association (MLA)
Gregorio-Jauregui, Karla M.…[et al.]. Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step. Journal of Nanomaterials No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-1029181
American Medical Association (AMA)
Gregorio-Jauregui, Karla M.& Gaona-Lozano, J. Gerardo& de la Garza-Rodríguez, Iliana M.& Ilyna, Anna& Barriga-Castro, Enrique Díaz& Saade, Hened…[et al.]. Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-1029181
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029181