An improved specimen table for the Balzers freeze etching system BAF 400

Area of Science:

• Cryo-electron microscopy
• Biophysics
• Materials Science

Background:

• Freeze-fracture electron microscopy requires specialized equipment for sample preparation.
• Efficient processing of biological samples, such as cell suspensions, is crucial for high-throughput analysis.
• Existing specimen preparation methods can be time-consuming and costly.

Purpose of the Study:

• To describe a time-saving, simple, and inexpensive adaptation of a Balzers specimen table.
• To present a combined system for enhanced freeze-fracture replica production.
• To facilitate easier handling and freezing procedures for cell suspensions.

Main Methods:

• Adaptation of a Balzers specimen table.
• Integration with small specimen holders from the Denton Freeze-etching module.
• Application to cell suspension samples for freeze-fracture procedures.

Main Results:

• The adapted system is time-saving, simple, and inexpensive.
• The combined system is particularly suited for cell suspensions.
• Routine production of ten replicas per freeze-fracture run is achieved.

Conclusions:

• The described adaptation offers a practical and cost-effective solution for freeze-fracture sample preparation.
• This method improves efficiency and ease of handling for cell suspensions.
• The system facilitates increased throughput in freeze-fracture replica production.