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The percentage of integrins on the neutrophil surface in range of bonding (<40 nm) as a function of EGL thickness for EGLs with different moduli: top curve, 20 Pa; next curve, 40 Pa; next curve, 60 Pa; and bottom curve, 80 Pa. The knee in the top curve (softest EGL) occurs where the leukocyte cell body contacts the surface of the EGL and no further compression of the microvilli occurs (see Supporting Material). To see this figure in color, go online.
