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Related Concept Videos

Fixation and Sectioning01:03

Fixation and Sectioning

6.6K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
6.6K

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Updated: Oct 17, 2025

Rigid Embedding of Fixed and Stained, Whole, Millimeter-Scale Specimens for Section-free 3D Histology by Micro-Computed Tomography
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A Flat Embedding Method to Orient Gravistimulated Root Samples for Sectioning.

Utku Avci1, Jin Nakashima2

  • 1Faculty of Agriculture, Department of Agricultural Biotechnology, Eskisehir Osmangazi University, Eskisehir, Turkey.

Methods in Molecular Biology (Clifton, N.J.)
|October 14, 2021
PubMed
Summary

This study introduces a simple, inexpensive embedding technique for preparing small biological specimens, like Arabidopsis thaliana roots, for microscopy. The method improves sample orientation, ensuring accurate sectioning for better understanding of cellular mechanisms.

Keywords:
Arabidopsis thalianaFixationFlat embeddingMicroscopySectioning

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Area of Science:

  • Biological research
  • Microscopy
  • Plant biology

Background:

  • Microscopy is vital for understanding cellular mechanisms and protein function.
  • Current sample preparation methods for microscopy can damage fragile specimens, like Arabidopsis thaliana roots.
  • Proper specimen orientation is crucial for studying biological processes, such as gravitropism, which rely on spatial information.

Purpose of the Study:

  • To develop an improved, simple embedding technique for small biological specimens.
  • To ensure proper orientation of specimens for accurate sectioning in microscopy.
  • To facilitate the study of complex biological phenomena in plant organs.

Main Methods:

  • A novel, inexpensive embedding technique was developed.
  • The method addresses challenges in orienting small-diameter specimens (less than 100 μm).
  • Minimal equipment and supplies are required for the procedure.

Main Results:

  • The technique allows for precise orientation of small plant organs, such as roots.
  • It facilitates obtaining desired median longitudinal sections.
  • The method is robust and minimizes damage to fragile specimens.

Conclusions:

  • This simple embedding technique enhances the reliability of microscopy data for biological research.
  • It provides a cost-effective solution for preparing challenging specimens.
  • The improved orientation and sectioning aid in understanding plant biological processes.