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Scanning Electron Microscopy

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
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Updated: May 19, 2026

A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures

A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures

Published on: November 8, 2024

DScan - a high-performance digital scanning system for entomological collections.

Stefan Schmidt¹, Michael Balke, Stefan Lafogler

¹Zoologische Staatssammlung, Münchhausenstr. 21, 81247 Germany.

|August 4, 2012

Summary

We developed a versatile, high-resolution imaging system for insect drawers. This adaptable system uses industrial components for detailed entomological collection imaging.

Keywords:

Entomology CNC technology insect collection insect drawer

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Area of Science:

Entomology
Imaging Technology
Digital Archiving

Background:

Digitizing entomological collections is crucial for research and preservation.
Traditional methods for imaging entire insect drawers are often time-consuming and lack high resolution.

Purpose of the Study:

To present a novel, high-performance imaging system for capturing high-resolution images of entire insect drawers.
To demonstrate the system's adaptability and configurability for diverse entomological collection needs.

Main Methods:

The system utilizes industrial standard components for scalability and customization.
A controlling unit allows precise parameter setting including imaging area, step distance, image resolution, and shooting sequence.
The system is compatible with various optical hardware and image processing software.

Main Results:

The developed system generates high-resolution images of whole insect drawers.
The system's configurable nature allows adaptation to specific collection requirements and existing infrastructure.
All components are industrial standard, ensuring reliability and ease of integration.

Conclusions:

This high-performance imaging system offers an efficient and adaptable solution for the digital archiving of entomological collections.
The system's modularity and configurable parameters support diverse research and collection management needs.
The use of industrial standard components ensures a robust and future-proof imaging solution.