Definition
High-resolution atomic force microscopy (AFM) topography has become a powerful bioanalytical tool when utilized for single-molecule force spectroscopy or simultaneous “topography and recognition imaging” (TREC). These modes allow for mapping of specific ligand-binding sites on biological samples under physiological conditions with nanometer resolution.
Introduction
Atomic force microcopy (AFM) is a version of scanning probe microscopy (SPM) that is extensively used in life sciences because it can be operated in physiological salt solution. In AFM imaging, a sharp probe tip mounted on a microcantilever scans over the specimen line by line, whereby the topographic image of the sample surface is generated by “feeling” rather than “looking.” Tips with high sharpness provide high resolution, and cantilevers with low spring constants allow precise control of the forces between tip and sample....
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Duman, M., Oh, Y.J., Zhu, R., Leitner, M., Ebner, A., Hinterdorfer, P. (2018). Atomic Force Microscopy (AFM) for Topography and Recognition Imaging at Single-Molecule Level. In: Roberts, G., Watts, A. (eds) Encyclopedia of Biophysics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35943-9_496-1
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DOI: https://doi.org/10.1007/978-3-642-35943-9_496-1
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