Abstract
Atomic force microscopy (AFM) has been widely used for characterizing physical properties of adherent living cells because it provides high-resolution images and accurate measurements of mechanical properties without modifications to the cells. In this chapter, we review recent advances in AFM single-cell imaging and rheology. Techniques for AFM imaging and mechanical measurements of living cells are first reviewed. We then discuss how rheological properties of cells, which are described as power-law rheology model, are quantified for single-cell diagnostics. In addition to micro- and nano-measurements of cell moduli, we introduce an AFM method combined with a micro-fabricated substrate as a force sensor for investigating how forces propagate inside cells through the cytoskeleton, which is deeply associated with various cell functions. Finally, we reviewed scanning ion conductance microscopy, which allows us to obtain noncontact image of cell membrane topography and to quantify cell membrane fluctuations that are inaccessible to AFM.
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Okajima, T. (2015). Atomic Force Microscopy: Imaging and Rheology of Living Cells. In: Kita, R., Dobashi, T. (eds) Nano/Micro Science and Technology in Biorheology. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54886-7_15
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DOI: https://doi.org/10.1007/978-4-431-54886-7_15
Publisher Name: Springer, Tokyo
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