I want to sort macrophages/neutrophils from septic mice based on whether they phagocytize bacteria, generate ROS, and/or acidify their phagosomes. Then, I would look for difference in intracellular signaling (i.e. phosphorylated proteins) between the cells that phagocytize versus the ones that do not or only weakly do so. Does anyone know of a kit or something that I could use to screen multiple targets at once?