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Figure 6 | Nanoscale Research Letters

Figure 6

From: Albumin-fatty acid interactions at monolayer interface

Figure 6

AFM images of mixed SA/BSA bilayer ( X BSA = 0.8). Deposited on oxidized silicon obtained in a 1.0 × 1.0 μm2 scan area and data scale of 20 nm. The morphology of the binary system differs considerably from the images of pure SA in Figure 5. Irregularly sized small globular aggregations (in a brighter tone) can be observed randomly distributed in the height top view (A). The 3D view in (B) shows the appearance of the globular protein, BSA, attracted strongly to SA that mimics a normal biological membrane. A cross section was drawn on a selected globular BSA incorporated on the membrane depicted in (A) to obtain more information of the height and width of BSA in the binary system. The height and width of this globular protein were found be to 2.781 and 54.688 nm, respectively.

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