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Switchable and Functional Fluorophores for Multidimensional Single-Molecule Localization Microscopy.

Yunshu Liu1, Md Abul Shahid1, Hongjing Mao1

  • 1Molecular Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, North Carolina 27606, United States.

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|September 1, 2023
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Summary
This summary is machine-generated.

Multidimensional single-molecule localization microscopy (mSMLM) offers nanoscale imaging with functional insights. Recent advances focus on novel fluorophores for multiplexed imaging, environmental mapping, and orientation analysis.

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Area of Science:

  • Biophysics
  • Optical Microscopy
  • Nanotechnology

Background:

  • Super-resolution microscopy enables nanoscale imaging beyond the diffraction limit.
  • Multidimensional single-molecule localization microscopy (mSMLM) combines spatial localization with functional information from fluorophores.
  • Switchable fluorophores are key to mSMLM, reporting on their local environment via emission properties.

Purpose of the Study:

  • To highlight recent advancements in mSMLM techniques.
  • To focus on the design and integration of novel fluorophores in mSMLM.
  • To discuss the potential of mSMLM for various nanoscale imaging applications.

Main Methods:

  • Development of advanced switchable fluorophores tailored for specific environmental reporting.
  • Integration of these fluorophores into sophisticated mSMLM imaging systems.
  • Utilizing precise laser illumination and single-molecule detection strategies.

Main Results:

  • Achieved simultaneous multiplexed super-resolution imaging.
  • Enabled nanoscale mapping of local polarity and hydrophobicity.
  • Demonstrated single-molecule orientational imaging capabilities.

Conclusions:

  • mSMLM is a powerful technique for nanoscale imaging with rich functional information.
  • Continued development of fluorescent probes and optical systems will expand mSMLM applications.
  • Machine learning and advanced analysis are crucial for future mSMLM progress.