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Recent advances in bioimaging with high-speed atomic force microscopy

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Abstract

Among various microscopic techniques for characterizing protein structures and functions, high-speed atomic force microscopy (HS-AFM) is a unique technique in that it allows direct visualization of structural changes and molecular interactions of proteins without any labeling in a liquid environment. Since the development of the HS-AFM was first reported in 2001, it has been applied to analyze the dynamics of various types of proteins, including motor proteins, membrane proteins, DNA-binding proteins, amyloid proteins, and artificial proteins. This method has now become a versatile tool indispensable for biophysical research. This short review summarizes some bioimaging applications of HS-AFM reported in the last few years and novel applications of HS-AFM utilizing the unique ability of AFM to gain mechanical properties of samples in addition to structural information.

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Acknowledgments

We thank Prof. Toshio Ando for his long-term dedication to the development of HS-AFM and its application.

Funding

This work was partly supported by JST/CREST (#JPMJCR13M1); KAKENHI from the Ministry of Education, Culture, Sports, Science and Technology, Japan (19H05389, 18H04512 and 18H01837 to TU, and 19K23737 to CG); and the Joint Research of the Exploratory Research Center on Life and Living Systems (ExCELLS) (ExCELLS program No. 18-101 to T.U.).

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Correspondence to Takayuki Uchihashi.

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Uchihashi, T., Ganser, C. Recent advances in bioimaging with high-speed atomic force microscopy. Biophys Rev 12, 363–369 (2020). https://doi.org/10.1007/s12551-020-00670-z

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  • DOI: https://doi.org/10.1007/s12551-020-00670-z

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