Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 311, Issue 1, Pages 259-263Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2006.10.1175
Keywords
Francisella tularensis; tularemia; magnetic bead; biosensor; magnetic label
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A biosensor that uses resonant coils with a special frequency-mixing technique and magnetic beads as detectable labels has been established for the detection of Francisella tularensis, the causative agent for tularemia. The detection principle is based on a sandwich immunoassay using an anti-Ft antibody for immunofiltration immobilized to ABICAP'(R) polyethylene filters, and biotinylated with streptavidin-coated magnetic beads as labels. The linear detection range of this biosensor was found to be 10(4)-10(6) cfu F tularensis lipopolysaccharide (LPS) per ml. Tested sample matrices were physiological PBS buffer and rabbit serum. (c) 2006 Elsevier B.V. All rights reserved.
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