98%
921
2 minutes
20
One of the greatest concerns in the subzero storage of cells, tissues, and organs is the ability to control the nucleation or recrystallization of ice. In nature, evidence of these processes, which aid in sustaining internal temperatures below the physiologic freezing point for extended periods of time, is apparent in freeze-avoidant and freeze-tolerant organisms. After decades of studying these proteins, we now have easily accessible compounds and materials capable of recapitulating the mechanisms seen in nature for biopreser-vation applications. The output from this burgeoning area of research can interact synergistically with other novel developments in the field of cryobiology, making it an opportune time for a review on this topic.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1146/annurev-bioeng-082222-015243 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
Department of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
Cyclic peptides (CPs) are versatile building blocks whose conformational constraints foster ordered supramolecular architectures with potential in biomedicine, nanoelectronics, and catalysis. Herein, we report the development of biomimetic antifreeze materials by conjugating CPs bearing ice-binding residues to 4-arm polyethylene glycol (PEG) via click chemistry. The concentration-dependent self-assembly of these CP-PEG conjugates induces programmable morphological transitions, forming nanotube networks above the critical aggregation concentration (CAC) and two-dimensional nanosheet networks near the CAC.
View Article and Find Full Text PDFJ Therm Biol
August 2025
Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada; Innovation and Portfolio Management, Canadian Blood Services, Edmonton, AB, Canada. Electronic address:
Extreme temperature fluctuations during routine handling and shipping of cryopreserved cell products significantly compromise product quality in ways that extend beyond the duration and peak temperature of the fluctuation. The type of cryoprotectant used and the initial ice nucleation temperature influence ice crystal growth during rewarming events, in turn impacting cell survival. Using a cryomicroscope together with temperature profiles recorded in cord-blood units, ice crystal growth was tracked through five transient-warming events (TWEs) that peaked at -30 °C, -20 °C, or -10 °C.
View Article and Find Full Text PDFFood Chem
August 2025
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai 201306, China. Electronic address:
The physicochemical properties, hydrogen-bonding networks, and freezing and thawing behaviors of betaine-based NADESs were investigated in this study. Results showed that the NADESs with moderate acidity (pH 6.66-8.
View Article and Find Full Text PDFMaterials (Basel)
July 2025
Iron and Steel Research Institute Co., Ltd., Beijing 100081, China.
The effects of trace Ce on the microstructure and texture of non-oriented silicon steel during recrystallization and grain growth were examined using X-ray diffraction and electron backscatter diffraction. Additionally, this study focused on investigating the mechanisms by which trace Ce influences the evolution of the {114} <481> and γ-fiber textures. During the recrystallization process, as the recrystallization fraction of annealed sheets increased, the intensity of α-fiber texture decreased, while the intensities of α*-fiber and γ-fiber textures increased.
View Article and Find Full Text PDFMaterials (Basel)
July 2025
Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
The microstructure evolution and hardness variations of as-fabricated and recrystallized 12Cr oxide dispersion strengthened (ODS) steel after dual-ion (6.4 MeV Fe and energy-degraded 1 MeV He) irradiation at 973 K up to 10.6 displacements per atom (dpa) at peak damage and 8900 appm He are investigated.
View Article and Find Full Text PDF