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Specimen Preparation, Imaging, and Analysis Protocols for Knife-edge Scanning Microscopy
10:25

Specimen Preparation, Imaging, and Analysis Protocols for Knife-edge Scanning Microscopy

Published on: December 9, 2011

Specimen preparation, imaging, and analysis protocols for knife-edge scanning microscopy.

Yoonsuck Choe1, David Mayerich, Jaerock Kwon

  • 1Department of Computer Science and Engineering, Texas A&M University, USA.

Journal of Visualized Experiments : Jove
|January 5, 2012
PubMed
Summary

The Knife-Edge Scanning Microscope (KESM) enables high-resolution 3D imaging of entire brains and other organs. This protocol details KESM usage for detailed neuroanatomical and microcirculatory data acquisition.

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Area of Science:

  • Neuroscience
  • Microscopy
  • Connectomics

Background:

  • High-throughput, high-resolution 3D microscopy generates large-scale neuroanatomical datasets.
  • The Knife-Edge Scanning Microscope (KESM) is a pioneering instrument for whole-brain imaging at submicrometer resolution.

Purpose of the Study:

  • To present a comprehensive pipeline for utilizing KESM for biological specimen imaging.
  • To facilitate broader access and utilization of KESM technology for research.

Main Methods:

  • Specimen preparation: fixing, staining (Golgi, India ink, Nissl), and embedding.
  • KESM configuration, setup, sectioning, and imaging.
  • Image processing, data preparation, visualization, and analysis.

Main Results:

  • KESM successfully imaged whole mouse brains, revealing neuronal and vascular networks, and cell body distribution.
  • The technique is applicable to various species (octopus, rat) and organs (mouse lung), with ongoing work on zebrafish embryos.
  • Acquired data provides ground-truth for connectomics, microcirculation, and stereology research.

Conclusions:

  • The detailed KESM protocol supports high-resolution, large-volume biological imaging.
  • KESM data significantly contributes to understanding complex biological structures and networks.
  • Standardizing the KESM pipeline will advance fields reliant on detailed anatomical data.