Tilt Tomography
Tilt Tomography - Related Videos
02:32
Generation of Tilted Amygdala Slices from a Mouse Brain
0 Views •
2025
The video demonstrates the generation of tilted amygdala slices from a mouse brain. The brain is positioned at an angle on the vibratome specimen stage to obtain slices containing the amygdala and axons from the medial prefrontal cortex that form synaptic connections with the amygdala. The brain slices are maintained at the physiological temperature to preserve the tissue for further experiments.
08:04
Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography
0 Views •
Cited by 9 •
2017
This report describes a sample preparation protocol and specific imaging conditions for performing scanning transmission electron tomography of thick biological specimens.
14:09
Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
0 Views •
Cited by 31 •
2013
We describe a "gold standard" for evaluating orthostatic tolerance (OT) using tilt testing with combined lower body negative pressure (LBNP). This can be combined with non-invasive evaluations of cardiovascular reflex control. Normal and abnormal responses are defined.
12:10
Single Particle Electron Microscopy Reconstruction of the Exosome Complex Using the Random Conical Tilt Method
0 Views •
Cited by 35 •
2011
This article describes a standard method to get a three-dimensional (3D) reconstruction of biological macromolecules using negative staining electron microscopy (EM). In this protocol, we explain how to get the 3D structure of the Saccharomyces cerevisiae exosome complex at medium resolution using the random conical tilt reconstruction method (RCT).
10:00
Energy Dispersive X-ray Tomography for 3D Elemental Mapping of Individual Nanoparticles
0 Views •
Cited by 11 •
2016
The use of energy dispersive X-ray tomography in the scanning transmission electron microscope to characterize elemental distributions within single nanoparticles in three dimensions is described.
FAQs
Each image records the specimen from a different viewing direction, so the series contains complementary spatial information. Computationally combining these views allows researchers to infer three-dimensional relationships that a single projection cannot show. This is especially important when organelles, cellular structures, or macromolecular assemblies overlap in two dimensions but occupy distinct positions within the specimen.
Alignment places the images in the tilt series into a consistent spatial relationship before they are combined. Without accurate alignment, structural features would not correspond correctly from one view to the next, reducing the quality of the reconstructed volume. Proper alignment therefore directly affects whether the tomogram can represent cellular organization and internal architecture clearly.
Instead of examining structures only as isolated or overlapping projections, the reconstructed volume shows their spatial arrangement within the specimen. This context helps connect the form of organelles, cellular structures, and macromolecular assemblies with their surrounding organization. As a result, researchers can study ultrastructure in relation to cellular function rather than interpreting each feature separately.
A specimen is placed in an electron microscope and incrementally rotated through a range of tilt angles. The microscope records a two-dimensional image at each position, creating a tilt series. These images are then computationally aligned and combined into a volumetric reconstruction, allowing the resulting tomogram to be examined for internal biological organization.
Researchers would choose this approach when they need three-dimensional information about how structures are arranged inside a specimen. A conventional projection can show features in two dimensions but cannot fully reveal their depth relationships. Tilt tomography is therefore useful for analyzing cellular architecture, organelle organization, and macromolecular assemblies when spatial context is central to the research question.
Tomograms can support investigations of cell biology, structural biology, and microbiology by linking ultrastructure with function. They may reveal how cellular structures and organelles are spatially organized, how macromolecular assemblies occur within their surroundings, and how disease-related changes alter internal organization. The method therefore contributes both structural observations and biologically meaningful context.