Confocal Imaging 3d
Confocal Imaging 3d - Related Videos
08:00
Correlative Confocal and 3D Electron Microscopy of a Specific Sensory Cell
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Cited by 7 •
2015
Here, we introduce a method, cocem3D, to unveil the ultrastructure of a specific cell in its native tissue by bridging confocal and serial block-face scanning electron microscopy.
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...
05:25
Quantification of Dendritic Spines Using Confocal Microscopy Imaging
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2025
Source: Gouder, et. al. Three-dimensional Quantification of Dendritic Spines from Pyramidal Neurons Derived from Human Induced Pluripotent Stem Cells. J. Vis. Exp. (2015).This video demonstrates the imaging and analysis of dendritic spines in transduced, immunolabeled pyramidal neurons using confocal microscopy. Background noise is reduced, and dendrites are traced by estimating their diameter and length. Automated spine segmentation involves setting parameters for dendrite and spine dimensions...
03:16
Three-dimensional Imaging of Immunolabeled Astrocytes Using Confocal Microscopy
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2025
Source: Bagheri, M., et. al. Protocol for Three-dimensional Confocal Morphometric Analysis of Astrocytes. J. Vis. Exp. (2015).This video demonstrates the imaging of fluorescently labeled astrocytes in a mouse brain section using a confocal microscope. The brain section is positioned under the appropriate objective lens, and suitable fluorophores and filters are selected. After optimizing the exposure automatically, the scanning parameters are defined to ensure high-resolution 2D images. Z-stack...
02:35
High-Resolution Confocal Imaging of Pathogen-Infected Drosophila Hemocytes
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2026
Source: Hiroyasu, A., et al. Extraction of Hemocytes from Drosophila melanogaster Larvae for Microbial Infection and Analysis. J. Vis. Exp. (2018)This video demonstrates high-resolution confocal imaging of Drosophila melanogaster hemocytes infected with Coxiella burnetii to visualize pathogen localization in 3D, enabling detailed analysis of intracellular infection dynamics and host-pathogen interactions.
FAQs
The pinhole improves depth discrimination by blocking light from regions outside the focal plane before it contributes to an optical section. This reduces interference from out-of-focus fluorescence, allowing structures at different depths to remain more distinct. In biological specimens, that separation helps researchers examine cell morphology and molecular organization with greater spatial clarity.
A focused laser provides the excitation and scanning mechanism for point-by-point image acquisition. As the beam interrogates defined locations, the system records fluorescence associated with the selected focal plane rather than treating the specimen as a single undifferentiated field. This localized acquisition makes separate depth-resolved sections available for later analysis.
Each optical section represents fluorescence at a particular focal depth, while the complete z-stack preserves the order of those planes through the specimen. Software can use this ordered series to reconstruct a three-dimensional volume. The resulting representation lets researchers inspect how structures extend, overlap, and relate to one another across depth.
3D confocal imaging improves depth resolution by combining focused illumination, out-of-focus light rejection, and sampling across successive focal planes. These components address different parts of the imaging process: the laser scans the specimen, the pinhole limits unwanted signal, and the z-stack supplies depth information. Together, they support three-dimensional interpretation.
A typical workflow begins by selecting a fluorescent biological specimen and positioning it for scanning. The focused laser then acquires point-by-point images at successive focal planes, producing a z-stack. Software reconstructs those sections into a three-dimensional volume, which can be examined for morphology, protein localization, tissue architecture, and spatial relationships.
This method is especially useful when the research question depends on location in three dimensions rather than on a single image plane. In biology, it can reveal cell shape, protein distribution, tissue organization, and spatial relationships among structures. Those observations support studies of development, disease, and cellular function.
The reconstructed volume can provide quantitative insights into biological structure and organization. Its preserved three-dimensional information supports examination of morphology, protein localization, tissue architecture, and relationships between components across depth. This makes the approach valuable for connecting visible spatial patterns with questions about development, disease, and cellular function.