Results 11 to 20 of about 48,476 (320)

The supercooling point depression is the leading cold tolerance strategy for the variegated ladybug, [Hippodamia variegata (Goezel)]

open access: yesFrontiers in Physiology, 2023
The variegated ladybug, Hippodamia variegata is one of the most effective predators of various pests that hibernate as adult beetles. During the overwintering period from April 2021 to March 2022, we examined the supercooling point (SCP), cold tolerance,
Mahsa Khabir   +2 more
doaj   +1 more source

Evaluation of Low-density lipoprotein and egg yolk as cryoprotectants non-penetrating of Peruvian Paso horse semen [PDF]

open access: yesSPERMOVA, 2019
The objective was to evaluate the low-density lipoproteins (LDL) and egg yolk as nonpenetrating cryoprotectants in Peruvian horse semen. Four adult males were collected. Prior to transfer to the laboratory, it was prediluted with dilutor.
X. Barriga   +5 more
doaj   +1 more source

Cryopreservation of common carp sperm [PDF]

open access: yes, 2003
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos   +2 more
core   +1 more source

Equilibrium vitrification of mouse embryos at various developmental stages using low concentrations of cryoprotectants

open access: yesThe Journal of Reproduction and Development, 2021
We previously developed a new vitrification method (equilibrium vitrification) by which two-cell mouse embryos can be vitrified in liquid nitrogen in a highly dehydrated/concentrated state using low concentrations of cryoprotectants. In the present study,
Juan QIU   +3 more
doaj   +1 more source

Stepped vitrification technique for human ovarian tissue cryopreservation [PDF]

open access: yes, 2019
The advantage of stepped vitrification (SV) is avoiding ice crystal nucleation, while decreasing the toxic effects of high cryoprotectant concentrations. We aimed to test this method for human ovarian tissue cryopreservation.
Amorin, C.A.   +9 more
core   +1 more source

Polyampholytes as Emerging Macromolecular Cryoprotectants [PDF]

open access: yesBiomacromolecules, 2019
Cellular cryopreservation is a platform technology which underpins cell biology, biochemistry, biomaterials, diagnostics, and the cold chain for emerging cell-based therapies. This technique relies on effective methods for banking and shipping to avoid the need for continuous cell culture.
Christopher Stubbs   +3 more
openaire   +5 more sources

Effect of Supplementation of Cryoprotectant Solution with Hydroxypropyl Cellulose for Vitrification of Bovine Oocytes

open access: yesAnimals, 2022
The technology of successful cryopreservation is a very important factor in research and commercial applications. However, the survival and development of the vitrified-thawed (VT) oocytes are lower than those of non-vitrified-thawed (non-VT) oocytes ...
Min-Jee Park   +9 more
doaj   +1 more source

A new crystal form of penicillin acylase from Escherichia coli [PDF]

open access: yes, 1997
A new crystal form of penicillin acylase (penicillin amidohydrolase, E.C. 3.5.1.11) from Escherichia coli W (ATCC 11105) is reported. The crystals were grown using a combination of hanging-drop and streak-seeding methods.
Brannigan, J.A.   +4 more
core   +2 more sources

Cryoprotectant-free vitrification of human spermatozoa in new artificial seminal fluid [PDF]

open access: yes, 2016
Vitrification is a new method that has been recently introduced in Assisted Reproduction Technique programs. The aim of this study was to design a new medium similar to normal human seminal fluid (SF), formulation artificial seminal fluid (ASF), and to ...
Agha Rahimi, A.   +4 more
core   +1 more source

Effects of Permeable Cryoprotectants on Viability of Mammalian Embryo Mo

open access: yesJournal of Animal Reproduction and Biotechnology, 2015
The objective of this study was to evaluate the toxicities of permeable cryoprotectants and finally to establish the cryopreservation method of surplus embryos obtained during assisted reproductive technology (ART).
Hyun Kim   +4 more
doaj   +1 more source

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