Fig. 4

QCM-D tracking of monoundecanoin addition to supported lipid bilayer platform. Time-resolved Δf (blue line with squares) and ΔD (red line with triangles) shifts are presented for treating the SLB with (A) 1000 µM, (B) 500 µM, (C) 250 µM, (D) 125 µM, (E) 63 µM, and (F) 31 µM monoundecanoin. The initial baseline measurements were consistent with the typical QCM-D values for supported lipid bilayer formation on a silica surface. After the baseline signals were stabilized for 5 min, monoundecanoin was continually added (arrow 1) for around 90 min before a buffer washing step was performed (arrow 2)