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Ultrastructure of cells cultured on polycarbonate membranes
Abstract:
A method is described for preparing undisturbed cell cultures for both scanning and transmission electron microscopy. Cells were propagated on polycarbonate membranes with pores of 0.2 micrometer or less. Cultured cells together with their supports were prepared for both scanning electron microscopy and transmission electron microscopy using routine methods. For transmission electron microscopy a rapid schedule of infiltration and polymerization was used. The method described in this report yielded good results and it allowed the fine structure of cultured cells to be viewed in situ by both scanning electron microscopy and transmission electron microscopy.
Insights
This study presents a new method for preparing undisturbed cell cultures for electron microscopy. The technique allows for high-resolution imaging of cell fine structure using both scanning and transmission electron microscopy (SEM/TEM).
Area of Science:
- Cell Biology
- Microscopy Techniques
Background:
- Preparing undisturbed cell cultures for electron microscopy is crucial for accurate ultrastructural analysis.
- Existing methods may introduce artifacts or compromise cellular integrity.
Purpose of the Study:
- To develop and validate a method for preparing intact cell cultures suitable for both scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
Main Methods:
- Cells were cultured on polycarbonate membranes with pore sizes of 0.2 micrometers or less.
- Standard protocols were adapted for SEM and TEM preparation, including a rapid infiltration and polymerization schedule for TEM.
Main Results:
- The described method successfully preserved the fine structure of cultured cells.
- In situ visualization of cellular ultrastructure was achieved using both SEM and TEM.
Conclusions:
- This technique provides a reliable approach for preparing cell cultures for correlative electron microscopy.
- It enables detailed examination of cellular morphology in an undisturbed state.