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Super-resolved total internal reflection fluorescence microscopy using random illuminations
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DOI：10.1364/OPTICA.487003.png)
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Abstract
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A benefit of random illumination microscopy (RIM) is that it improves the resolution and linearity of the brightness of structured illumination microscopy using minimally controlled speckled illumination. Here, we implemented RIM in the total internal reflection fluorescence (TIRF) configuration for imaging biological processes close to the coverslip surface. Using standard TIRF objectives, we separated fluorescent lines 60 nm apart and achieved high contrast 86 nm resolution on fixed biological samples. Applied to live macrophages, TIRF-RIM provided two-color dynamic images of paxillin nanoclusters with remarkable spatial (96-120 nm) and temporal (1-8 Hz) resolutions, respectively. The simple experimental setup and imaging protocol together with the robustness of the data processing to leaks and aberrations make TIRF-RIM a method of choice for super-resolution TIRF imaging. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
STRUCTURED ILLUMINATION
LOCALIZATION MICROSCOPY
RESOLUTION
TIRF
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8.5
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BIOPHYSICAL JOURNAL
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BIOPHYSICAL JOURNALIF3.1
OAAIShareSaveShareSaveShareSaveShareSaveShareSaveShareSaveSingle-shot super-resolution total internal reflection fluorescence microscopyNATURE METHODSOAAI
NATURE METHODSIF32.1
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