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Image scanning microscopy: an overview

Ward, E.N.; Pal, R.

Image scanning microscopy: an overview Thumbnail


E.N. Ward


For almost a century, the resolution of optical microscopy was thought to be limited by Abbé’s law describing the diffraction limit of light. At the turn of the millennium, aided by new technologies and fluorophores, the field of optical microscopy finally surpassed the diffraction barrier: a milestone achievement that has been recognized by the 2014 Nobel Prize in Chemistry. Many super-resolution methods rely on the unique photophysical properties of the fluorophores to improve resolution, posing significant limitations on biological imaging, such as multicoloured staining, live-cell imaging and imaging thick specimens. Structured Illumination Microscopy (SIM) is one branch of super-resolution microscopy that requires no such special properties of the applied fluorophores, making it more versatile than other techniques. Since its introduction in biological imaging, SIM has proven to be a popular tool in the biologist's arsenal for following biological interaction and probing structures of nanometre scale. SIM continues to see much advancement in design and implementation, including the development of Image Scanning Microscopy (ISM), which uses patterned excitation via either predefined arrays or raster-scanned single point-spread functions (PSF). This review aims to give a brief overview of the SIM and ISM processes and subsequent developments in the image reconstruction process. Drawing from this, and incorporating more recent achievements in light shaping (i.e. pattern scanning and super-resolution beam shaping), this study also intends to suggest potential future directions for this ever-expanding field.


Ward, E., & Pal, R. (2017). Image scanning microscopy: an overview. Journal of Microscopy, 266(2), 221-228.

Journal Article Type Article
Acceptance Date Jan 26, 2017
Online Publication Date Mar 1, 2017
Publication Date May 1, 2017
Deposit Date Mar 17, 2017
Publicly Available Date Mar 1, 2018
Journal Journal of Microscopy
Print ISSN 0022-2720
Electronic ISSN 1365-2818
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 266
Issue 2
Pages 221-228


Accepted Journal Article (659 Kb)

Copyright Statement
This is the accepted version of the following article: Ward, E. N. and Pal, R. (2017), Image scanning microscopy: an overview. Journal of Microscopy. 266(2): 221-228, which has been published in final form at This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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