Results 211 to 220 of about 32,701 (270)
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Biochimica et Biophysica Acta (BBA) - Protein Structure, 1975
Leaves of frost-resistant plants contain a number of soluble proteins which are capable of protecting isolated biomembranes against inactivation during freezing. Such proteins have not been found in non-hardy summer material. The pattern of protective proteins was not uniform in hardy material of different origin and appeared to change with the season.
H G, Volger, U, Heber
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Leaves of frost-resistant plants contain a number of soluble proteins which are capable of protecting isolated biomembranes against inactivation during freezing. Such proteins have not been found in non-hardy summer material. The pattern of protective proteins was not uniform in hardy material of different origin and appeared to change with the season.
H G, Volger, U, Heber
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Microwave properties of cryoprotectants
Cryobiology, 1978Abstract The values of the dielectric constant and of the loss tangent for pure samples of DMSO, ethylene glycol, and glycerol were determined over the temperature range of + 15 to −70 °C. An operating frequency range of 1.45 to 1.55 GHz was used, allowing direct application of the results of both 0.915 and 2.450 GHz studies.
J D, Macklis, F D, Ketterer
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Cryoprotectant toxicity and cryoprotectant toxicity reduction: In search of molecular mechanisms
Cryobiology, 1989Cryoprotectant toxicity is a fundamental obstacle to the full potential of artificial cryoprotection, yet it remains in general a poorly understood phenomenon. Unfortunately, most relevant biochemical studies to date have not met the basic criteria required for demonstrating mechanisms of toxicity.
G M, Fahy +4 more
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Unloading of cryoprotectants from cryoprotectant-loaded cells on a microfluidic platform
Biomedical Microdevices, 2017In this paper, a multistep dilution-filtration microdevice (MDFD) is developed for unloading cryoprotectants from cryoprotectant-loaded cells. The MDFD contained a diluent producing region, a dilution-filtration execution region, and a filtrate collection region.
Yufeng, Kang +6 more
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Animal Reproduction Science, 2015
The present study investigates the effects of five cryoprotectants (CPAs) and cryoprotectant combinations on the post-thaw total motility, progressive motility, viability, mitochondrial membrane potential and acrosome integrity in stallion spermatozoa. In Experiment 1, the objective was to compare the impact of different concentrations (2.5%, 3.5% and ...
Zhuangyuan Wu +9 more
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The present study investigates the effects of five cryoprotectants (CPAs) and cryoprotectant combinations on the post-thaw total motility, progressive motility, viability, mitochondrial membrane potential and acrosome integrity in stallion spermatozoa. In Experiment 1, the objective was to compare the impact of different concentrations (2.5%, 3.5% and ...
Zhuangyuan Wu +9 more
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Glycine betaine as a cryoprotectant for prokaryotes
Journal of Microbiological Methods, 2004Osmoprotectants are low molecular weight, hydrophilic, nontoxic molecules that assist a cell under osmotic stress to stabilize its concentration of internal solutes. These properties are similar to compounds used as cryoprotectants for the preservation of prokaryotic cells during freezing.
David Emerson, Paul Krader, Jane Tang
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Cryoprotectant toxicity neutralization
Cryobiology, 2010Cryoprotectant toxicity is a fundamental limiting factor for the successful cryopreservation of living systems by both freezing and vitrification, and the ability to negate it would be attractive. Past attempts to demonstrate "cryoprotectant toxicity neutralization" (CTN) have had many ups and downs. First convincingly introduced by Baxter and Lathe in
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Development and Application of Cryoprotectants
2018Cryopreservation involves the preservation of biological materials, including cells, embryos, tissues, and organs, at ultra-low temperatures (in a state of suspended animation), for a long period of time, and in a way that allows them to be restored whenever required.
Robin, Rajan, Kazuaki, Matsumura
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Cryoprotective properties of vasoconstriction
Cryobiology, 1974Abstract In standardized freezing experiments made on depilated rat skin, it was found that vasconstriction gives some cryoprotection, but, only if tissue temperatures do not drop below −30 °C. It is suggested that vasoconstriction, which is a well-known sequel to more moderate drops in tissue temperature, is in fact a physiological temperature ...
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Cryoprotectants and cryoprotective effect in cryopreservation of gamete cells
2007Gamet hücrelerinin dondurulmasında kullanılan koruyucu maddeler (kryoprotektanlar) soğuk şoku ve donma esnasında gelişen diğer hasarlara karşı koruma sağlarlar. Kryoprotektanların hücrede toksik etkiye sahip olmaları, bu maddeler üzerindeki çalışmaları yoğunlaştırmış, ortama katılan eksternal kryoprotektanlarla, toksik etkimeler azaltılmaya ...
BUCAK, Mustafa Numan, TEKİN, Necmettin
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