Do-It-Yourself Device for Recovery of Cryopreserved Samples Accidentally Dropped into Cryogenic Storage Tanks

Overview

This article presents a low-cost, durable cryotolerant device designed for the safe and easy retrieval of samples from Dewar tanks filled with liquid nitrogen. The modular design simplifies the construction process and enhances user safety during sample handling.

Key Study Components

Area of Science

• Neuroscience
• Biotechnology
• Cryopreservation

Background

• Sample retrieval from cryogenic tanks can be challenging and hazardous.
• Existing methods may compromise sample integrity.
• There is a need for safer, more efficient retrieval techniques.
• The proposed device aims to address these issues.

Purpose of Study

• To develop a device that simplifies the retrieval of samples from liquid nitrogen tanks.
• To ensure the integrity of samples during the retrieval process.
• To allow single-operator use for enhanced efficiency.

Methods Used

• Removal of freezer racks from the Dewar tank for maneuverability.
• Vertical insertion of the device into the tank.
• Gentle scraping along the bottom of the tank to collect samples.
• Upright pulling of the device along the tank walls to retrieve samples.

Main Results

• The device provides a rapid and safe alternative to traditional methods.
• Sample integrity is preserved during the retrieval process.
• Single-operator functionality enhances usability.
• The construction of the device is straightforward and cost-effective.

Conclusions

• The cryotolerant device significantly improves sample retrieval from cryogenic tanks.
• It offers a practical solution for researchers working with cryopreserved samples.
• Future applications may expand to various laboratory settings.

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