Cryogenic Straw Carrier
Cryogenic Straw Carrier - Related Videos
03:15
Rabbit Embryo Vitrification Using Cryogenic Straw: An Ultra-Rapid Cooling Technique to Preserve Rabbit Embryos for Long-term Storage
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2025
In this video, we describe the procedure for vitrification of harvested rabbit embryos at desired development stage using ethylene glycol and dimethyl sulfoxide as cryoprotectants and cryogenic straw as the carrier system. The vitrified embryos have high survival rate and can be stored for an extended period until use.
01:24
Electron Carriers
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2019
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons. Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
09:50
Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
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Cited by 4 •
2017
A protocol for determining the vitreous phase densities of micro- to pico-liter size drops of aqueous mixtures at cryogenic temperatures is described.
02:03
Preparation of Legionella pneumophila for Cryogenic Electron Tomography
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2025
Source: Chetrit, D., et al. Applying Live Cell Imaging and Cryo-Electron Tomography to Resolve Spatiotemporal Features of the Legionella pneumophila Dot/Icm Secretion System. J. Vis. Exp. (2020)The video describes how to prepare Legionella pneumophila samples for cryo-electron tomography by combining bacterial culture, gold nanoparticle marking, and vitrification techniques. The process preserves native cellular structures and enables high-resolution imaging of membrane-associated secretion...
01:21
Carrier Transport
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2024
The generation of electrical current in semiconductors is fundamentally driven by two mechanisms: drift and diffusion. These processes are essential for the functionality and performance of semiconductor-based devices. Drift Current: The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by: Where μe is...
FAQs
Its rack, cane, or container format holds sealed straws in defined positions and keeps them separated from one another. This arrangement supports controlled retrieval and transfer while reducing the chance that straws will be misplaced, mixed, or physically damaged. Consistent positioning also makes sample identification and inventory management more reliable in storage facilities.
Separation helps prevent contact-related damage and makes individual straws easier to locate and handle without disturbing neighboring samples. The carrier also supports continued exposure to the extremely low temperatures supplied by liquid nitrogen or its vapor. Together, these functions help limit warming, contamination, and physical damage that could threaten long-term sample viability.
A protective rack, cane, or container secures the sealed straws while they are moved within or between cryogenic storage areas. By maintaining separation and keeping the straws positioned, it reduces unnecessary handling and helps preserve their exposure to cryogenic conditions. This protection is especially relevant when retrieving reproductive, genetic, or cultured biological material.
Sealed straws are placed into designated carrier positions, kept separated, and maintained under liquid nitrogen or its vapor. Before retrieval or transfer, the operator uses the organized arrangement to identify the required sample and remove it with minimal disturbance. Returning or relocating straws in a consistent arrangement supports accurate inventory management and safer ongoing storage.
The carrier should keep straws exposed to the extremely low temperatures produced by liquid nitrogen or its vapor. Avoiding unnecessary warming is central to protecting the preserved material during storage, retrieval, and transfer. The carrier itself supports this condition by securing the straws in an organized format rather than leaving them loosely handled or difficult to locate.
These carriers support storage and handling of sperm, oocytes, embryos, cell cultures, and other reproductive or genetic materials. They are relevant to biobanks, fertility laboratories, and research facilities where many sealed samples require reliable identification and inventory control. Their use can contribute to maintaining long-term viability by reducing warming, contamination, and physical damage during handling.