期刊
MICROSCOPY
卷 64, 期 4, 页码 237-249出版社
OXFORD UNIV PRESS
DOI: 10.1093/jmicro/dfv034
关键词
structured-illumination microscopy; super-resolution; temporal resolution; live-cell imaging; low illumination intensity
类别
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan, KAKENHI [25840008, 26292169, 26251037, 26116511]
- Grants-in-Aid for Scientific Research [15K14500] Funding Source: KAKEN
Fluorescence microscopy allows us to observe fluorescently labeled molecules in diverse biological processes and organelle structures within living cells. However, the diffraction limit restricts its spatial resolution to about half of its wavelength, limiting the capability of biological observation at the molecular level. Structured-illumination microscopy (SIM), a type of super-resolution microscopy, doubles the spatial resolution in all three dimensions by illuminating the sample with a patterned excitation light, followed by computer reconstruction. SIM uses a relatively low illumination power compared with other methods of super-resolution microscopy and is easily available for multicolor imaging. SIM has great potential for meeting the requirements of live-cell imaging. Recent developments in diverse types of SIM have achieved higher spatial (similar to 50 nm lateral) and temporal (similar to 100 Hz) resolutions. Here, we review recent advancements in SIM and discuss its application in noninvasive live-cell imaging.
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