Storage in Liquids

C Wang, H Fei, Y Qiu, Y Yang, Z Wei, Y Tian, Y Chen, and Y Zhao, Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers, Appl. Phys. Lett., 74 19-21, 1999. 

Autologous bone marrow transplantation involves initial removal of some marrow from the patient, its storage in liquid nitrogen, followed by its re-introduction into the patient subsequent to chemo- or radiotherapy. Leukine is the tradename given to a recombinant human GM-CSF preparation produced in engineered S. cerevisiae (Table 6.4). 

After at least 10 min in liquid nitrogen the cassettes can be removed and rapidly placed into storage in liquid nitrogen (see Note 7). 

A few minutes before starting the dissections, assemble a quick-freezing set up With a hot, fine injection needle puncture several holes at the top part of screw-cap cryotubes. Place these tubes at the top position of metal canes of the type used for storage in liquid nitrogen. Immerse the canes into a liquid nitrogen-filled Dewar flask so that the tubes are held above and cooled by the liquid, but are not immersed in it (see Note 10). 

ANSI/ANS-54.2-1985, "Design Bases for Facilities for LMFBR Spent Fuel Storage in Liquid Metal Outside the Primary Coolant Boundary."... 

Transfer the frozen block in precooled plastic bag for storage in liquid nitrogen or at -40°C. 

Low temperature as a result of storage in liquid nitrogen (-196 °C). With the advent of -70 °C refrigerators in the 1980s, liquid nitrogen has been largely replaced for this purpose with similar results ... 

In regard to storage temperature, it is probably true that the lower the temperature, the more stable the compound, i.e., storage in liquid nitrogen or at —70 C is preferable to storage in a conventional freezer at -20°C. 

High humidity levels in powder detergents are detrimental to the lipase stability upon storage. In liquid detergents, compatibility problems with proteases exist during storage, which require the introduction of enzyme stabilizers [30]. 

Because enzymes are among the most expensive ingredients in the compositions, the expected loss of activity during storage in liquid detergents, especially those containing phosphate builders, cannot be compensated simply by introducing an excess of enzyme. 

Pore size distribution for silica aerogel after treatments with water, (a) Original sample, (b) After storage in water vapor, (c) After storage in liquid water. These data obtained by nitrogen adsorption do not reveal the larger pores that constitute most of the pore volume. From Schuck et at. [102]. 

PS II activity of the TSF II/TiO preparations. DCPIP oxydation in the presence of DPC was used as a measiore orPS II activity of free and adsorbed complexes. Table 1 shows that the DCPIP oxydation rates measured in the presence of the adsorbed complexes are not much different than for the free TSF II. (The higher activity observed with the TSF 11/Bayer sol is maybe due to a better preservation of the activity during storage in liquid nitrogen). TABLE 1. PS II activities of free and adsorbed TSF II particles. 

Xenopus egg extract, once prepared, is stable for long-term storage in liquid nitrogen. Extract can alternatively be stored at -80 °C however, it should be used within 2 months. 

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