Figure 3
From: Poly-protein G-expressing bacteria enhance the sensitivity of immunoassays
Fluorescent microscopy of poly-protein G-expressing bacteria labeled with FITC-conjugated antibody. The antibody-trapping ability of BL21, BL21/1G and BL21/8G was analyzed by FITC-conjugated goat antibody under a fluorescent microscope. Top panels, green fluorescence of FITC under dark field. Bottom panels, images of bacteria under bright field. Bar = 10 μm.
