Confocal Microscopy Analysis
Confocal Microscopy Analysis - Related Videos
10:48
Imaging Biological Samples with Optical and Confocal Microscopy
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2023
Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut Optical microscopes have been around for centuries, and while they reached their theoretical limitation of resolution decades ago, new equipment and techniques, such as confocal and digital image processing, have created new niches within the field of optical imaging. The best optical microscopes will typically have a resolution down to 200 nm in ideal...
17:08
In vivo Clonal Tracking of Hematopoietic Stem and Progenitor Cells Marked by Five Fluorescent Proteins using Confocal and Multiphoton Microscopy
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Cited by 11 •
2014
Combinatorial 5 fluorescent proteins marking of hematopoietic stem and progenitor cells allows in vivo clonal tracking via confocal and two-photon microscopy, providing insights into bone marrow hematopoietic architecture during regeneration. This method allows non-invasive fate mapping of spectrally-coded HSPCs-derived cells in intact tissues for extensive periods of time following transplantation.
09:44
Oral Biofilm Analysis of Palatal Expanders by Fluorescence In-Situ Hybridization and Confocal Laser Scanning Microscopy
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Cited by 20 •
2011
We present a protocol for structural and compositional analysis of natural oral biofilm from orthodontic appliances with in situ hybridization (FISH) and confocal laser scanning microscopy (CLSM). Oral biofilm samples were collected from palatal expanders, scraping acrylic-resin flakes off their surface and referring them for molecular processing.
09:16
Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy
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Cited by 18 •
2014
Time-lapse confocal imaging is a powerful technique useful for characterizing embryonic development. Here, we describe the methodology and characterize craniofacial morphogenesis in wild-type, as well as pdgfra, smad5, and smo mutant embryos.
11:36
Intravital Microscopy of the Spleen: Quantitative Analysis of Parasite Mobility and Blood Flow
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Cited by 17 •
2012
We show the method for performing intravital microscopy of the spleen using GFP transgenic malaria parasites and the quantification of parasite mobility and blood flow within this organ.
FAQs
The pinhole removes fluorescence emitted from outside the focal plane before the detector records the signal. This rejection reduces blurred background and preserves information from the selected optical section. As a result, researchers can distinguish labeled structures more clearly within specimens, particularly when signals from different depths would otherwise overlap in the image.
A focused laser scans the specimen sequentially rather than recording the entire field as one undivided signal. The detector collects fluorescence from each scanned location, and software organizes those measurements into images. Combining signals from multiple optical sections allows the analysis to represent labeled structures in two or three dimensions and supports evaluation of their organization through depth.
Thick samples contain structures distributed across multiple depths, so out-of-focus fluorescence can obscure features at the selected focal plane. Optical sectioning addresses this problem by isolating signals from particular depths. Researchers can therefore examine the location and organization of labeled proteins, organelles, or cells within a specimen rather than viewing only an undifferentiated fluorescence signal.
The workflow begins with a specimen containing fluorescently labeled biological structures. A focused laser scans the sample point by point, while the pinhole limits detection to light from the focal region. Collected signals are then processed by software into two- or three-dimensional images. These reconstructed views can be examined for distribution, spatial relationships, and structural organization.
This approach supports investigations in cell biology, developmental biology, neuroscience, and tissue imaging. Its value across these areas comes from combining depth-resolved visualization with information about labeled structures. Depending on the specimen and labels, researchers can study how proteins, organelles, and cells are positioned and organized within cellular or tissue contexts.
Confocal image analysis can provide both visual and quantitative information. Researchers may assess fluorescence intensity, determine where labeled structures occur, examine spatial relationships among them, and evaluate volumetric organization in three dimensions. These measurements extend interpretation beyond a representative image, helping characterize the distribution and structural arrangement of biological components within the specimen.