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Super-resolution Fluorescence Microscopy

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...

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Related Experiment Video

Updated: Jun 14, 2025

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Highly sensitive volumetric single-molecule imaging.

Le-Mei Wang¹, Jiah Kim², Kyu Young Han¹

¹CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA.

Nanophotonics (Berlin, Germany)

|September 3, 2024

Summary

This summary is machine-generated.

This study introduces a novel 2.5D fluorescence microscopy technique that enhances imaging speed and reduces background noise. This advancement enables faster live-cell imaging and extended single-particle tracking for cellular dynamics research.

Keywords:

PSF engineering extended depth-of-field single-molecules single-particle tracking super-resolution imaging volumetric imaging

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Published on: September 5, 2019

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

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Last Updated: Jun 14, 2025

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Single-Molecule Tracking Microscopy - A Tool for Determining the Diffusive States of Cytosolic Molecules

Single-Molecule Tracking Microscopy - A Tool for Determining the Diffusive States of Cytosolic Molecules

Published on: September 5, 2019

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Area of Science:

Cell Biology
Microscopy Techniques
Biophysics

Background:

Volumetric subcellular imaging is crucial for cell and tissue studies.
Limited imaging speed and depth of field hinder live-cell imaging and single-particle tracking.

Purpose of the Study:

To develop an advanced fluorescence microscopy method for faster volumetric imaging.
To overcome limitations in live-cell imaging and single-particle tracking.

Main Methods:

Utilized 2.5D fluorescence microscopy with highly inclined illumination.
Employed multi-layered glass for incoherent wavefront splitting to project volumetric data onto a 2D plane.
Eliminated the need for sequential z-scanning.

Main Results:

Achieved a ~2-fold reduction in image acquisition time and out-of-focus background compared to epi-illumination.
Successfully performed multi-color immunofluorescence and volumetric super-resolution imaging over 3-4 µm sample thickness.
Demonstrated extended observation times for single-particle tracking in living cells.

Conclusions:

The novel 2.5D microscopy method significantly improves imaging speed and quality.
This technique facilitates advanced live-cell imaging and single-particle tracking applications.
Offers a powerful tool for studying cellular structures and dynamics with enhanced efficiency.