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Updated: May 26, 2025

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Advances in Axial Resolution Strategies for Super-Resolution Imaging Systems.

Qiwen Tan1,2,3, Hongjun Wu1,2,3, Yongtao Liu1,2,3

  • 1Smart Computational Imaging Laboratory (SCILab), School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu Province, 210094, China.

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|February 21, 2025
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Summary
This summary is machine-generated.

3D super-resolution microscopy advances cell structure imaging. This review details axial super-resolution techniques, overcoming resolution limits for better biological insights.

Keywords:
axial localization precisionaxial resolutionaxial super‐resolution imagingfluorescence super‐resolution imaging microscope

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Area of Science:

  • Biomedical Imaging
  • Cell Biology
  • Optics

Background:

  • 3D fluorescence super-resolution imaging is vital for visualizing complex cellular and tissue structures.
  • Current super-resolution methods struggle with axial resolution, achieving only a fraction of lateral resolution.
  • True 3D super-resolution remains a significant challenge in biological research.

Purpose of the Study:

  • To review progress in axial super-resolution imaging techniques.
  • To focus on the principles, developments, and characteristics of these advanced imaging methods.
  • To provide insights into future research directions in 3D super-resolution microscopy.

Main Methods:

  • Review of existing literature on axial super-resolution imaging.
  • Analysis of principles behind various axial super-resolution techniques.
  • Comparison of the characteristics and performance of different methods.

Main Results:

  • Summarizes key advancements in overcoming axial resolution limitations.
  • Highlights techniques that improve 3D imaging capabilities beyond the diffraction limit.
  • Identifies trends and challenges in achieving isotropic 3D super-resolution.

Conclusions:

  • Axial super-resolution imaging is crucial for detailed biological studies.
  • Continued development is needed to achieve true 3D super-resolution.
  • This review offers a valuable resource for researchers in the field.