Figure 1. Stages of monocyte isolation. A.1. Primary leukocyte population analysis using forward scatter (FS) versus side scatter (SS) plot after separation in ficoll gradient (density ρ = 1.077 g/ml). A.2. Histogram showing fluorescein isothiocyanate (FITC)-conjugated monoclonal antibody against membrane receptor CD14 fluorescence intensity in leukocyte fraction. B.1. Monocyte population analysis using forward scatter (FS) versus side scatter (SS) plot after adhesion-based isolation method. Percentage of isolated monocytes accounts for 74.1%. B.2. Histogram illustrating FITC-conjugated monoclonal antibody against membrane receptor CD14 fluorescence intensity in monocyte fraction.