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Nature Methods Apr 2013
Topics: Carbon Dioxide; Carbonic Acid; Chemical Precipitation; Dry Ice; Hydrogen-Ion Concentration; Product Packaging; Protein Stability; Solubility; Specimen Handling; Time Factors
PubMed: 23538862
DOI: 10.1038/nmeth.2409 -
American Industrial Hygiene Association... Mar 1974
Topics: Adult; Air Movements; Atmosphere Exposure Chambers; Blood Pressure; Body Temperature; Body Temperature Regulation; Cardiac Output; Costs and Cost Analysis; Dry Ice; Environmental Exposure; Heart Rate; Hot Temperature; Humans; Humidity; Hypothermia, Induced; Male; Methods; Protective Clothing; Rectum; Skin Temperature; Water Loss, Insensible
PubMed: 4821302
DOI: 10.1080/0002889748507015 -
Canadian Family Physician Medecin de... May 1968
PubMed: 20468218
DOI: No ID Found -
IET Nanobiotechnology Jun 2012Effects of dry-ice treatment (frozen CO(2) at -78.5°C) on gas permeability of untreated and nano-silver-impregnated poplar and beech specimens were studied here on the...
Effects of dry-ice treatment (frozen CO(2) at -78.5°C) on gas permeability of untreated and nano-silver-impregnated poplar and beech specimens were studied here on the basis of their biological structure and woody mass as well as their vessel element types. A 200 ppm aqueous dispersion of silver nano-particles was used for impregnation; the size range of silver nano-particles was 20-80 nm. Dry-ice treatment increased gas permeability by 87 and 45% in poplar and beech, respectively. Nano-silver impregnation also increased gas permeability by 190 and 89% in poplar and beech, respectively. Dry-ice treatment on nano-silver-impregnated specimens increased gas permeability even more (31% increase in poplar but only 0.96% in beech). It may be concluded that dry-ice treatment on solid woods may be used as a practical method to increase permeability in species that because of their biological structures are impermeable; since this method alters the biological structure slightly and consequently decreases mechanical strength of solid woods insignificantly, it may substitute methods such as incising to increase permeability.
Topics: Dry Ice; Fagus; Gases; Metal Nanoparticles; Microscopy, Electron, Scanning; Particle Size; Permeability; Populus; Silver; Water; Wood
PubMed: 22559705
DOI: 10.1049/iet-nbt.2011.0048 -
Journal of the Science of Food and... Jun 2019Lipid peroxidation entails major quality degradation in omega-3 (ω-3) fatty-acid-fortified surimi-like meat products upon storage. Currently, the use of label-friendly...
BACKGROUND
Lipid peroxidation entails major quality degradation in omega-3 (ω-3) fatty-acid-fortified surimi-like meat products upon storage. Currently, the use of label-friendly alternatives to synthetic antioxidants is encouraged in the industry. Hence, we aimed to examine the applicability of the hurdle-technology concept, using an 80% (v/v) ethanol solution to obtain rosemary extracts (REs) containing substantial amounts of polyphenol, and dry ice (DI) which can create a cryogenic environment, on the physicochemical stabilities of ω-3 fatty-acid (FA)-fortified meat products after manufacturing and storage periods. The polyphenolic profiles of the REs were also investigated.
RESULTS
Carnosol and rosmarinic acid are major phenolic components in REs. Furthermore, DI addition during the chopping procedure increased (P < 0.05) whiteness values and hardness of products, while total ω-3 and ω-6 FAs were relatively well preserved (P < 0.05) in products with flaxseed oil premixed with RE. During 14-day storage at 4 °C, combined treatment with RE and DI decreased (P < 0.05) thiobarbituric acid reactive substance (TBARS) levels and the centrifugation loss of products. Single or combined treatment with RE and/or DI decreased (P < 0.05) TBARS levels in products after 60 days of storage at -20 °C.
CONCLUSION
Due to the antioxidant-polyphenol profile of REs and a possible oxygen exclusion of DI treatment under atmospheric pressure during food manufacturing, application of the hurdle-technology concept, using treatment with both RE and DI, can reduce lipid peroxidation and maintain a greater water-holding capacity of ω-3 FA-fortified meat products upon storage. © 2019 Society of Chemical Industry.
Topics: Animals; Antioxidants; Chickens; Dry Ice; Fatty Acids, Omega-3; Food Preservation; Food Preservatives; Food Storage; Food, Fortified; Meat Products; Plant Extracts; Plant Leaves; Polyphenols; Rosmarinus; Thiobarbituric Acid Reactive Substances
PubMed: 30680724
DOI: 10.1002/jsfa.9606 -
Journal of Nematology Dec 1999Solid CO (dry ice) was added to pots containing soil that was infested either with eggs of the root-knot nematode, Meloidogyne incognita, or with tomato (Lycopersicon...
Solid CO (dry ice) was added to pots containing soil that was infested either with eggs of the root-knot nematode, Meloidogyne incognita, or with tomato (Lycopersicon esculentum 'Rutgers') root fragments that were infected with various stages of the nematode. Two hours after dry ice was added, thermocouples in the soil recorded temperatures ranging from -15 degrees C to -59 degrees C. One day after treatment with the dry ice, the temperature of the soil was allowed to equilibrate with that of the greenhouse, and susceptible tomato seedlings were planted in pots containing infested soil treated or untreated (controls) with dry ice. After 5 weeks, roots were removed from the pots and nematode eggs were extracted and counted. Plants grown in soil infested with eggs and receiving dry ice treatment had less than 1% of the eggs found in the controls; plants from soil infested with root fragments and receiving dry ice treatment had less than 4% of the eggs found in controls. Dry ice used to lower soil temperature may have potential as a cryonematicide.
PubMed: 19270918
DOI: No ID Found -
Southern Medical Journal Aug 1964
Topics: Cosmetics; Dry Ice; Hamartoma; Hemangioma; Hemangioma, Cavernous; Humans; Infant; Infant, Newborn; Infant, Newborn, Diseases; Neoplasms; Nevus; Sclerosing Solutions; Tattooing; Vascular Surgical Procedures
PubMed: 14173057
DOI: 10.1097/00007611-196408000-00017 -
International Journal of Pharmaceutics Apr 2012A novel ultra cryo-milling micronization technique has been established using dry ice beads and liquid nitrogen (LN2). Drug particles were co-suspended with dry ice... (Comparative Study)
Comparative Study
A novel ultra cryo-milling micronization technique has been established using dry ice beads and liquid nitrogen (LN2). Drug particles were co-suspended with dry ice beads in LN2 and ground by stirring. Dry ice beads were prepared by storing dry ice pellets in LN2. A poorly water-soluble drug, phenytoin, was micronized more efficiently using either dry ice beads or zirconia beads compared to jet milling. Dry ice beads retained their granular shape without pulverizing and sublimating in LN2 as the milling operation progressed. Longer milling times produced smaller-sized phenytoin particles. The agitation speed for milling was optimized. Analysis of the glass transition temperature revealed that phenytoin particles co-ground with polyvinylpyrrolidone (PVP) by dry ice milling were crystalline, whereas a planetary ball-milled mixtures process with zirconia beads contained the amorphous form. The dissolution rate of phenytoin milled with PVP using dry ice beads or zirconia beads was significantly improved compared to jet-milled phenytoin or the physical mixture. Dry ice beads together with LN2 were spontaneously sublimated at ambient condition after milling. Thus, the yield was significantly improved by dry ice beads compared to zirconia beads since the loss arisen from adhering to the surface of dry ice beads could be completely avoided, resulting in about 85-90% of recovery. In addition, compounds milled using dry ice beads are free from abraded contaminating material originating from the beads and internal vessel wall.
Topics: Adhesiveness; Chemistry, Pharmaceutical; Cold Temperature; Crystallization; Drug Compounding; Dry Ice; Microscopy, Electron, Scanning; Nanotechnology; Nitrogen; Particle Size; Phase Transition; Phenytoin; Povidone; Solubility; Technology, Pharmaceutical; Transition Temperature; Zirconium
PubMed: 22266538
DOI: 10.1016/j.ijpharm.2012.01.007 -
Plastic and Reconstructive Surgery Jun 1968
Topics: Cryosurgery; Dry Ice; Electrocoagulation; Hemangioma; Humans; Sclerosing Solutions; Skin Neoplasms
PubMed: 5659097
DOI: 10.1097/00006534-196806000-00003 -
The Journal of Reproduction and... Dec 2018Efficient cryopreservation and transportation of mouse sperm are among the most desirable strategies for current and future research on mouse genetics. However, the...
Efficient cryopreservation and transportation of mouse sperm are among the most desirable strategies for current and future research on mouse genetics. However, the current method for sperm cryopreservation uses an 11-cm plastic straw, which is a bulky and fragile container. Developing an alternative to overcome the limitations associated with this method would accelerate biomedical research. Here, we developed the ST (sperm-freezing in ShorT STraw to reduce STorage space) method for cryopreserving mouse sperm in short 3.8-cm plastic straws. Up to nine short straws can be stored in a cryotube, reducing storage space. We further show that sperm frozen by the ST method can be transported in liquid nitrogen or dry ice without any detrimental effects on subsequent fertilization and the birth rate. Our findings suggest that this sperm-freezing method is beneficial not only for individual laboratories but also for large-scale mutagenesis/knockout and phenotyping programs.
Topics: Animals; Cryopreservation; Dry Ice; Fertilization in Vitro; Freezing; Male; Mice; Semen Preservation; Sperm Motility; Spermatozoa
PubMed: 30270280
DOI: 10.1262/jrd.2018-100