what are the main parts the second instrument consists of?
Cantilever, a piezoelectric element, the sharp tip, the detector, the sample, sample stage, and an xyz drive
Atomic force microscopy
The small spring-like cantilever (1) is carried by the support (2). Optionally, a piezoelectric element (typically made of a ceramic material) (3) oscillates the cantilever (1). The sharp tip (4) is fixed to the free end of the cantilever (1). The detector (5) records the deflection and motion of the cantilever (1). The sample (6) is mounted on the sample stage (8). An xyz drive (7) permits to displace the sample (6) and the sample stage (8) in x, y, and z directions with respect to the tip apex
what is another lipid in the cell membrane It is a thin polar membrane made of two layers of lipid molecules besides the cell membrane, is there any other part in the cell where this bilayer is present? UNANSWERABLE what are the functions of this bilayer? It is the barrier that keeps ions, proteins and other molecules where they are needed and prevents them from diffusing into areas where they should not be what instruments are used to observe this layer? Electron microscopy and atomic force microscopy
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Atomic force microscopy [SEP] Configuration
Fig. 3 shows an AFM, which typically consists of the following features. Numbers in parentheses correspond to numbered features in Fig. 3. Coordinate directions are defined by the coordinate system (0). The small spring-like cantilever (1) is carried by the support (2). Optionally, a piezoelectric element (typically made of a ceramic material) (3) oscillates the cantilever (1). The sharp tip (4) is fixed to the free end of the cantilever (1). The detector (5) records the deflection and motion of the cantilever (1). The sample (6) is mounted on the sample stage (8). An xyz drive (7) permits to displace the sample (6) and the sample stage (8) in x, y, and z directions with respect to the tip apex (4).