Results 61 to 70 of about 48,476 (320)

Combining Electrochemical Reduction with Biosynthesis for Directed Conversion of CO2 into a Library of C3 Chemicals

open access: yesAdvanced Science, EarlyView.
In the H‐type electrolytic cell, carbon dioxide is reduced to acetic acid via electro‐microbial catalysis. The simply processed acetic acid is further converted through biological fermentation into high‐value‐added products, including acrylic acid, L‐lactic acid, and β‐alanine.
Kaixing Xiao   +8 more
wiley   +1 more source

Freeze/thaw stress induces organelle remodeling and membrane recycling in cryopreserved human mature oocytes [PDF]

open access: yes, 2016
Purpose: Our aim was to evaluate the ultrastructure of human metaphase II oocytes subjected to slow freezing and fixed after thawing at different intervals during post-thaw rehydration.
Albani, E.   +8 more
core   +1 more source

Production and Formulation of Alcanivorax borkumensis SK2 Cell Powders for Marine Oil Spill Bioremediation

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
Abstract Oil spills pose severe threats to marine ecosystems and coastal communities. Alcanivorax borkumensis SK2, a marine bacterium with superior hydrocarbon‐degrading capabilities, emerges as a promising agent for bioremediation. This study identified an economical growth substrate for A.
Élisabeth Perreault   +2 more
wiley   +1 more source

Relation on Cryoprotectants and Arrangement of Hydroxyl Groups

open access: yesZhileng xuebao, 2015
In order to study the relationship between cryoprotective and its molecular structure, Pyris-diamond DSC was used in the experiment to study the physical properties of seven kinds of cryoprotective agent, including phase transition temperature, the area ...
Yang Bo, Liu Baolin, Li Juan
doaj  

Melatonin improves the vitrification of sheep morulae by modulating transcriptome

open access: yesFrontiers in Veterinary Science, 2023
Embryo vitrification technology is widely used in livestock production, but freezing injury has been a key factor hindering the efficiency of embryo production.
Pengyun Ji   +16 more
doaj   +1 more source

Cryopreservation of Pike Perch Sperm in Hatchery Conditions [PDF]

open access: yes, 2008
Experiments were carried out on pike perch (Sander lucioperca L.) to find a method for stripping sperm without contamination by urine, to determine sperm concentration, and to fertilize large batches of eggs with cryopreserved sperm.
Bokor, Zoltán   +3 more
core  

Bottom‐Up Ice Growth Geometry Attenuates Shear Stress and Improves the Cryopreservation of Hematopoietic Stem/Progenitor Cells Under Low DMSO Concentrations

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves   +8 more
wiley   +1 more source

The Nuclear Maturation and Embryo Development of Mice Germinal Vesicle Oocytes with and without Cumulus Cell after Vitrification [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Background: Cryobiology is an essential tool in assisted reproductive technology. Research in this area focuses on the possibility of restoring fertility in women with reproductive problems or after cancer treatments.
Mohsen Nikseresht   +4 more
doaj   +1 more source

FREEZE ETCHING OF CELLS WITHOUT CRYOPROTECTANTS [PDF]

open access: yesThe Journal of Cell Biology, 1972
The technique of spray-freeze etching was applied to unicellular organisms. The superior freezing rates obtainable with this method gave excellent cryofixation on Chlorella, Euglena, and spermatozoa without the use of antifreeze agents, and cell damage due to ice crystal formation was never observed.
Plattner, Helmut   +3 more
openaire   +3 more sources

Cu(I) Is a Game Changer in the Arrest of Cu(Aβ)‐Induced ROS Production in the Presence of Competing Zn(II) Ions

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT ROS production due to Cu(amyloid‐β) redox cycling is proposed to contribute to the oxidative stress observed in Alzheimer's disease brains. We previously reported on a nitrogen and sulfur‐containing ligand, L, able to arrest Cu(Aβ)‐induced ROS production [Chem. Eur. J. 2023, 29,].
Marielle Drommi   +4 more
wiley   +1 more source

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