Cross-talk-free multi-color STORM imaging using a single fluorophore

Area of Science:

• Super-resolution microscopy
• Cellular imaging
• Biophysics

Background:

• Multi-color stochastic optical reconstruction microscopy (STORM) is crucial for visualizing cellular structures.
• Existing multi-color STORM methods face challenges like color cross-talk, limited fluorophore options, buffer incompatibilities, and chromatic aberrations, hindering spatial resolution and color capacity.

Purpose of the Study:

• To develop a simplified and robust approach for multi-color STORM imaging.
• To overcome the limitations of current multi-color STORM techniques, including cross-talk and fluorophore constraints.
• To enable reliable, long-term imaging of the same cellular regions across different experimental sessions and microscopes.

Main Methods:

• Implementation of a sequential labeling strategy utilizing a single fluorophore for multi-color STORM.
• Development of a versatile method for precise region of interest localization over extended periods and across different microscopy platforms.

Main Results:

• Achieved cross-talk-free multi-color STORM imaging.
• Demonstrated the ability to repeatedly locate and image the same sub-cellular structures.
• Successfully imaged sub-cellular structures with enhanced spatial resolution and multiple colors.

Conclusions:

• The proposed single-fluorophore sequential labeling method simplifies multi-color STORM imaging.
• The developed localization technique ensures consistent imaging of target regions, enhancing reproducibility.
• This combined approach offers a powerful, cross-talk-free solution for advanced sub-cellular structure visualization.