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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

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.
Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
Confocal Fluorescence Microscopy01:16

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,...
Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
Immunofluorescence Microscopy01:12

Immunofluorescence Microscopy

A fluorescence microscope uses fluorescent chromophores called fluorochromes, which can absorb energy from a light source and then emit this energy as visible light. Fluorochromes include naturally fluorescent substances (such as chlorophylls) and fluorescent stains that are added to the specimen to create contrast. Dyes such as Texas red and FITC are examples of fluorochromes. Other examples include the nucleic acid dyes 4’,6’-diamidino-2-phenylindole (DAPI), and acridine orange.
The...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

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Updated: Jun 13, 2026

Visualizing Single Molecular Complexes In Vivo Using Advanced Fluorescence Microscopy
11:26

Visualizing Single Molecular Complexes In Vivo Using Advanced Fluorescence Microscopy

Published on: September 8, 2009

FluoroSim: A Visual Problem-Solving Environment for Fluorescence Microscopy.

Cory W Quammen1, Alvin C Richardson, Julian Haase

  • 1Department of Computer Science, UNC Chapel Hill, USA.

Eurographics Workshop on Visual Computing for Biomedicine
|May 1, 2010
PubMed
Summary
This summary is machine-generated.

FluoroSim, a new fluorescence microscope simulator, helps scientists understand image artifacts and validate experimental models. This tool aids in analyzing complex biological structures by generating realistic synthetic fluorescence images.

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Last Updated: Jun 13, 2026

Visualizing Single Molecular Complexes In Vivo Using Advanced Fluorescence Microscopy
11:26

Visualizing Single Molecular Complexes In Vivo Using Advanced Fluorescence Microscopy

Published on: September 8, 2009

Rapid Analysis and Exploration of Fluorescence Microscopy Images
11:41

Rapid Analysis and Exploration of Fluorescence Microscopy Images

Published on: March 19, 2014

Light Sheet-based Fluorescence Microscopy of Living or Fixed and Stained Tribolium castaneum Embryos
10:15

Light Sheet-based Fluorescence Microscopy of Living or Fixed and Stained Tribolium castaneum Embryos

Published on: April 28, 2017

Area of Science:

  • Biophysics
  • Cell Biology
  • Microscopy

Background:

  • Fluorescence microscopy is crucial for biological structure localization.
  • Image formation artifacts like noise and blur obscure true molecular structures, hindering analysis.
  • Existing methods lack tools for understanding and mitigating these imaging artifacts.

Purpose of the Study:

  • Introduce FluoroSim, an interactive fluorescence microscope simulator.
  • Enable scientists to understand image formation artifacts in fluorescence microscopy.
  • Facilitate hypothesis testing and model refinement by comparing simulated and experimental data.

Main Methods:

  • FluoroSim renders synthetic fluorescence images from geometric models (triangle meshes).
  • Three GPU-accelerated rendering algorithms are presented for point-spread function convolution.
  • The simulator's performance is evaluated and discussed.

Main Results:

  • FluoroSim effectively generates synthetic fluorescence images, simulating microscope artifacts.
  • The rendering algorithms demonstrate efficient computation of specimen-image convolution.
  • The simulator has been successfully applied to solve real biological problems.

Conclusions:

  • FluoroSim is a valuable tool for training scientists in fluorescence microscopy.
  • The simulator aids in experimental design and data interpretation by accounting for imaging artifacts.
  • FluoroSim supports the validation of biological models through comparison with experimental data.