Figure 4From: Highly specific fiber optic immunosensor coupled with immunomagnetic separation for detection of low levels of Listeria monocytogenes and L. ivanovii(a) Capture efficiency of MAb-coated paramagnetic beads from a cell suspension containing variable concentrations of L. monocytogenes . Data are the mean ± SD of three independent assays performed in duplicate. (b) Photomicrograph showing capture of GFP-expressing L. monocytogenes using MyOne-2D12 (anti-InlA MAb). Beads, red arrow; bacteria, blue arrow; bar = 1 μm.Back to article page