Figure 1 | Scientific Reports

Figure 1

From: Imaging in Biologically-Relevant Environments with AFM Using Stiff qPlus Sensors

Figure 1

Comparison of AFM setups for imaging biological samples with silicon cantilevers and qPlus AFMs. (a) Schematic drawing of a typical silicon cantilever AFM setup which is completely immersed in a transparent liquid. (b) Schematic drawing of the qPlus AFM setup for measurements in a drop of liquid. (c) FM-AFM image of lipid membrane islands (extracted from Halobacterium salinarum) performed in z-feedback with f0 = 18.92 kHz, k = 3500 N/m, A = 150 pm and Δf = +20 Hz. Buffer solution: 300 mM KCl and 20 mM Tris-HCl (pH 7.5).

Back to article page