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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 developed.

Confocal Fluorescence Microscopy

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

Two-Dimensional Microscopy in Microbiology

Two-Dimensional Microscopy in Microbiology

Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...

Three-Dimensional Microscopy in Microbiology

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Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...

Protein Dynamics in Living Cells

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Updated: May 12, 2026

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Published on: October 28, 2018

Advanced methods in fluorescence microscopy.

Luke Fritzky¹, David Lagunoff

¹Core Imaging Facility, New Jersey Medical School, UM, NJ, USA.

Studies in Health Technology and Informatics

|April 2, 2013

Summary

Recent advances in fluorescence microscopy offer powerful tools for cell biology and diagnostics. This review covers established and emerging imaging techniques, including super-resolution microscopy, to enhance cellular and tissue analysis.

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Area of Science:

Cell Biology
Pathology
Microscopy

Background:

Significant advancements in fluorescence microscopy over the past 25 years have revolutionized biological imaging.
These techniques are crucial for understanding cellular processes and have potential applications in diagnostic pathology.

Purpose of the Study:

To survey current and emerging fluorescence microscopy modalities for cell biologists and diagnostic pathologists.
To highlight innovations that extend beyond traditional imaging limits.

Main Methods:

Review of established techniques: Confocal laser scanning microscopy, multiphoton microscopy, and Total Internal Reflection Fluorescence (TIRF) microscopy.
Exploration of emerging technologies: Super-resolution microscopy (breaking the Abbe limit), structured illumination, light sheet illumination.
Discussion of advanced applications: Förster Resonance Energy Transfer (FRET), molecular beacons, fluorescence speckles, and second harmonic generation (SHG) for imaging native structures.

Main Results:

A comprehensive overview of a wide spectrum of fluorescence imaging techniques is presented.
Emerging technologies significantly enhance resolution and provide new ways to visualize cellular components and biomolecules.
Specific applications of advanced techniques like FRET and SHG for studying structures such as collagen and microtubules are detailed.

Conclusions:

Fluorescence microscopy has undergone remarkable progress, offering unprecedented capabilities for biological research and diagnostics.
The surveyed modalities provide powerful tools for detailed cellular and tissue analysis, pushing the boundaries of microscopic imaging.
Continued innovation in fluorescence microscopy promises further breakthroughs in understanding biological systems.