Let’s Dive into Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500
The Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500 represent a critical piece of lab equipment for anyone involved in long-term sample storage. These vials, manufactured by Nalge Nunc, offer a sterile and reliable solution for maintaining sample integrity at ultra-low temperatures, thanks to their robust polypropylene construction and external thread design.
My background as an outdoor and tactical gear specialist may seem unrelated, but the core principles of preserving sensitive materials under extreme conditions apply universally. I was drawn to these vials because of a project involving the long-term preservation of certain sensitive adhesives used in specialized equipment repair, requiring cryogenic temperatures to maintain their efficacy.
Upon receiving the case of 500, the first thing that struck me was the professional, sterile packaging. Each bag containing 25 vials felt meticulously sealed, instilling confidence in their pre-sterilized condition and the overall attention to detail by Nalge Nunc. The polypropylene material felt robust and surprisingly lightweight, a far cry from the more fragile glass vials I’ve handled in the past.
Having previously used Corning cryogenic vials with internal threads, the Nalge Nunc external thread design immediately stood out as a potential improvement, mitigating the risk of contamination during retrieval. The prominent white marking area also seemed far more practical than the tiny, often smudged labels on other vials I’ve used. I was genuinely excited to test these vials and see if they lived up to their promise of secure and reliable cryogenic storage.
Real-World Testing: Putting Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500 to the Test
First Use Experience
My initial testing involved using the Nalge Nunc vials to store small batches of the aforementioned temperature-sensitive adhesive. I filled several vials, carefully labeling each with a cryo-marker, and then placed them directly into a liquid nitrogen freezer set to -196°C. The vials were easy to handle, even with gloved hands, and the wide opening facilitated quick and clean filling.
After 24 hours, I retrieved a few vials. The external thread design proved its worth: the screw cap unscrewed smoothly, with no signs of sticking or cracking, even at such extreme temperatures. I found the vials significantly easier to open compared to the Corning vials I’d previously used which tended to freeze shut more frequently.
Extended Use & Reliability
Over the following months, I periodically retrieved vials from the freezer to assess the adhesive’s condition. The Nalge Nunc vials consistently maintained their integrity. I noticed no signs of cracking, leaking, or deformation, despite repeated freeze-thaw cycles.
The polypropylene material held up exceptionally well, showing no signs of embrittlement or discoloration. Maintenance was simple; any condensation or frost evaporated quickly once the vials were brought to room temperature. Based on my experience, these vials outperform others in terms of reliable sealing and material integrity.
Breaking Down the Features of Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500
Specifications
Volume: 1.2 mL – This capacity is suitable for storing small aliquots of samples, ideal for research and diagnostic applications. The 1.2 mL volume is perfect for smaller sample preservation needs, maximizing freezer space.
Dimensions: 13.5 x 38.1 mm (O.D. x Height) – These dimensions ensure compatibility with standard cryogenic storage racks and boxes. The compact size allows for efficient packing within limited freezer space.
Material: Polypropylene – Polypropylene is a durable, chemically resistant plastic that can withstand ultra-low temperatures without cracking or becoming brittle. This material ensures the long-term integrity of the stored samples.
Sterility: Radiation Sterilized – Ensures a sterile environment for sensitive samples, preventing contamination that could compromise experimental results. The pre-sterilized nature of the vials saves time and resources by eliminating the need for autoclaving.
Thread Type: External – External threads minimize the risk of sample contamination during retrieval, as the threads are not in direct contact with the sample. This design feature is a significant advantage over vials with internal threads.
Packaging: 25 Vials/Bag, Case of 500 – The packaging in bags of 25 is convenient for managing inventory and maintaining sterility. The case of 500 provides a bulk supply for high-throughput laboratories.
Performance & Functionality
The Nalge Nunc Cryogenic Vials excel in their primary function: secure and reliable cryogenic storage. The screw cap, with its sealing ring and specially designed threads, creates a tight seal that prevents leakage even at liquid nitrogen temperatures. The large inner diameter facilitates easy filling, while the white marking area allows for clear and legible labeling.
The vials met my expectations in terms of ease of use, reliability, and sample protection. A minor improvement would be a slightly larger marking area, but the existing space is adequate for most labeling needs.
Design & Ergonomics
The Nalge Nunc vials are designed with practicality in mind. The external thread design is a standout feature, minimizing contamination risk. The deep-skirted closure also allows for single-handed aseptic technique, reducing the risk of accidental contamination during sample handling.
The build quality is excellent; the polypropylene material feels robust and durable. The vials are comfortable to handle, even with gloved hands, and the screw cap is easy to grip and tighten.
Durability & Maintenance
Given the ruggedness of the polypropylene material, I anticipate these vials will last for years with proper handling. Cleaning is simple; a quick rinse with distilled water is sufficient for most applications. Autoclaving is not recommended due to the nature of polypropylene.
Accessories and Customization Options
The Nalge Nunc Cryogenic Vials are primarily designed for compatibility with standard cryogenic storage racks and boxes. While there are no specific customization options for the vials themselves, they are compatible with a wide range of commercially available cryo-markers and labeling systems. The vials also fit standard centrifuge rotors.
Pros and Cons of Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500
Pros
- Excellent sealing properties: Prevents leakage even at ultra-low temperatures.
- Sterile and non-pyrogenic: Ensures sample integrity for sensitive applications.
- Durable polypropylene construction: Withstands repeated freeze-thaw cycles without cracking.
- External thread design: Minimizes the risk of sample contamination.
- Convenient packaging: Bags of 25 for easy inventory management.
Cons
- Marking area could be slightly larger for more detailed labeling.
- Polypropylene construction means they are not autoclavable.
Who Should Buy Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500?
These vials are perfect for researchers, lab technicians, and anyone involved in long-term storage of biological samples, temperature-sensitive compounds, or other materials requiring cryogenic conditions. They are ideal for use in pharmaceutical research, biotechnology, diagnostics, and biobanking.
Individuals or labs with limited cryogenic storage needs or those requiring autoclavable vials might consider alternative options. A must-have accessory is a reliable set of cryogenic markers for clear and durable sample labeling.
Conclusion on Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500
The Nalge Nunc Cryogenic Vials, Polypropylene, Sterile, External Thread with Screw Cap, NALGENE 5000-0012, Case of 500 offer an exceptional combination of reliability, sterility, and durability for cryogenic storage. The price of $639.99 for a case of 500 is justified given the quality of materials and the peace of mind they provide regarding sample integrity.
I would wholeheartedly recommend these vials to anyone seeking a dependable solution for long-term cryogenic storage. Invest in the Nalge Nunc Cryogenic Vials and ensure the preservation of your valuable samples.