title: Development of superparamagnetic microparticles for biotechnological purposes.
abstract: Aqueous suspensions containing magnetic microparticles have been increasingly used in biosciences and biotechnology. This work describes an experimental procedure to produce superparamagnetic microparticles. The particles were prepared based on the coprecipitation of iron salts in alkaline medium. Afterwards, characterization was performed. Characterization data demonstrated that magnetite was the dominant phase in the analyzed sample, and 50% of them were in the size range of 0.5-5 microm. The results suggest that the experimental protocol provided a simple synthesis route to produce superparamagnetic microparticles. Such properties may be very useful for biotechnological purposes.
authors.affiliation: Programa de Pos Graduacao em Ciencias da Saude, Universidade Federal do Rio Grande do Norte, Natal/-RN, Brazil.
authors.forename: Amanda K A
authors.initials: AK
authors.lastname: Silva
authors.forename: E Socrates T
authors.initials: ES
authors.lastname: Egito
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Nagashima-Junior
authors.forename: Ivonete B
authors.initials: IB
authors.lastname: Araujo
authors.forename: Erica L
authors.initials: EL
authors.lastname: Silva
authors.forename: Luiz A L
authors.initials: LA
authors.lastname: Soares
authors.forename: Artur S
authors.initials: AS
authors.lastname: Carrico
mesh_terms: D001709:Biotechnology / Q000379:methods*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D008280:Magnetics; D010316:Particle Size; D014961:X-Ray Diffraction
chemical_list: D052203:Ferrosoferric Oxide