In Situ Preparation of Nanocrystalline γ-Fe2O3 in Iron(II) Cross-Linked Alginate Gels
Source abstract
Abstract
The cross-linking agent, iron(II), used to bind a linear polysaccharide, alginic acid, was used as the reaction center for the in situ formation of nanocrystalline iron oxides. The resulting hydrogel was isolated in the form of spherical beads ca. 2 mm in diameter that are superparamagnetic and stable indefinitely at room temperature. The dehydrated beads contain from 10 to 50% iron predominantly in the form of maghemite, γ-Fe2O3, nanoparticles 4−15 nm in diameter.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Characterization and Applications of Magnetic Nanoparticles · Hydrogels: synthesis, properties, applications · Electrohydrodynamics and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, McMaster University 1280 Main St. W, Hamilton Ontario, Canada L8S 4M1
Wilson Center for Research and Technology Xerox Corporation, Webster, New York 14580
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