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Even containers gotta vent
nitrogen, which requires an additional step, is not reliable. The two major factors in choosing an ePTFE membrane for liquid or chemical products are surface tension of the product and the amount of gas it releases. There are significant differences in airflow and liquid-resistance performance in membrane
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Medical Device Link . Predicting Cryogenic Impact Performance of Medical Containers from Resin Properties
by cryogenic storage, handling, and retrieval in the presence of liquid nitrogen, which is employed at a temperature of 196 C. For these cryogenic product applications, the impact properties of the containers are an extremely critical factor. This study examined the cryogenic impact performance of four
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A Closer Look at Form-Fill-Seal Technology
technologies to minimize operator intervention and contamination risk in the filling and packaging of liquid parenteral drugs. One of these technologies is form-fill-seal (FFS), in which a polymeric material is formed and sealed inline to a container of choice, while the container is being filled. FFS offers
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A Closer Look at Form-Fill-Seal Technology
technologies to minimize operator intervention and contamination risk in the filling and packaging of liquid parenteral drugs. One of these technologies is form-fill-seal (FFS), in which a polymeric material is formed and sealed inline to a container of choice, while the container is being filled. FFS offers
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Tips and Tricks on Freezing Cells
the polyurethane container directly in. the freezer (-80 °C). The cells can be stored in this way for several months. or, after approximately 24 hours, transferred to a liquid nitrogen container. Method 2 - Freezing in a nitrogen container using freezing plugs or a. biofreezer:Centrifuge the cells briefly
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Invention could solve bottleneck in developing pollution-free cars
condenses into a liquid at -252 C. This makes it difficult to use conventional storage systems. High-pressure gas containers would need 3-in.-thick steel walls, making them too heavy and large for cars. Scientists have experimented with ways of storing hydrogen by locking the gas into metal lattices
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Cryopreservation and Reanimation of Living Cells
For decades, cryopreservation has been used for plant cells, unfertilized (oocytes)/fertilized (zygotes) human and animal eggs, and male sperm cells. The cryopreservation process typically involves using liquid nitrogen to quickly deep freeze the cells to -196°C allowing all metabolic processes
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Test it Right for Thin-Cake Filtration Operations
wash. In solid-liquid separation sys-. BHS pressurized pocket-leaf filter. · A 1,000 ml to 4,000 ml closed. tems, a wide variety of parameters. (PLF), which resembles a Buchner. container with mixer to use for. influence performance. Evaluation. funnel. The figure shown on the. the feed material