Figure 6From: Development and evaluation of an immunochromatographic strip for rapid detection of porcine hemagglutinating encephalomyelitis virusThe colloidal gold and gold-labeled proteins were observed by electron microscopy. The results of transmission electron microscope imaging of colloidal gold and gold-labeled proteins. A: colloidal gold (×30,000), B: gold-labeled MAb 4D4 (×30,000).Back to article page