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Kobayashi A, Tanaka D, Hidaka H, Sakurai K, Kawai K, Kato T, Kihara K, Kirschvink JL. Biophysical evidence that frostbite is triggered on nanocrystals of biogenic magnetite in garlic cloves (Allium sativum). Commun Biol 2024; 7:1167. [PMID: 39289530 PMCID: PMC11408717 DOI: 10.1038/s42003-024-06749-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 08/18/2024] [Indexed: 09/19/2024] Open
Abstract
Trace levels of biologically precipitated magnetite (Fe3O4) nanocrystals are present in the tissues of many living organisms, including those of plants. Recent work has also shown that magnetite nanoparticles are powerful ice nucleation particles (INPs) that can initiate heterogeneous freezing in supercooled water just below the normal melting temperature. Hence there is a strong possibility that magnetite in plant tissues might be an agent responsible for triggering frost damage, even though the biological role of magnetite in plants is not understood. To test this hypothesis, we investigated supercooling and freezing mortality in cloves of garlic (Allium sativum), a species which is known to have moderate frost resistance. Using superconducting magnetometry, we detected large numbers of magnetite INPs within individual cloves. Oscillating magnetic fields designed to torque magnetite crystals in situ and disturb the ice nucleating process produced significant effects on the temperature distribution of supercooling, thereby confirming magnetite's role as an INP in vivo. However, weak oscillating fields increased the probability of freezing, whereas stronger fields decreased it, a result that predicts the presence of magnetite binding agents that are loosely attached to the ice nucleating sites on the magnetite crystals.
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Affiliation(s)
- Atsuko Kobayashi
- Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, Tokyo, Japan.
- Division of Geological & Planetary Sciences, California Institute of Technology, Pasadena, CA, USA.
- Marine Core Research Institute, Kochi University, Nankoku, Kochi, Japan.
| | - Daisuke Tanaka
- Research Center of Genetic Resources, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan.
- Institute of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan.
| | - Hironori Hidaka
- Department of System and Control Engineering, School of Engineering, Tokyo Institute of Technology, Meguro, Tokyo, Japan
| | - Kasumi Sakurai
- Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Meguro, Tokyo, Japan
| | - Kotaro Kawai
- Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Meguro, Tokyo, Japan
| | - Toyohiro Kato
- Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Meguro, Tokyo, Japan
| | - Kumiko Kihara
- Department of Biological and Chemical Systems Engineering, National Institute of Technology, Kumamoto College, Kumamoto, Japan
| | - Joseph L Kirschvink
- Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, Tokyo, Japan.
- Division of Geological & Planetary Sciences, California Institute of Technology, Pasadena, CA, USA.
- Marine Core Research Institute, Kochi University, Nankoku, Kochi, Japan.
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Yuan T, DeFever RS, Zhou J, Cortes-Morales EC, Sarupria S. RSeeds: Rigid Seeding Method for Studying Heterogeneous Crystal Nucleation. J Phys Chem B 2023; 127:4112-4125. [PMID: 37130351 DOI: 10.1021/acs.jpcb.3c00910] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Heterogeneous nucleation is the dominant form of liquid-to-solid transition in nature. Although molecular simulations are most uniquely suited to studying nucleation, the waiting time to observe even a single nucleation event can easily exceed the current computational capabilities. Therefore, there exists an imminent need for methods that enable computationally fast and feasible studies of heterogeneous nucleation. Seeding is a technique that has proven to be successful at dramatically expanding the range of computationally accessible nucleation rates in simulation studies of homogeneous crystal nucleation. In this article, we introduce a new seeding method for heterogeneous nucleation called Rigid Seeding (RSeeds). Crystalline seeds are treated as pseudorigid bodies and simulated on a surface with metastable liquid above its melting temperature. This allows the seeds to adapt to the surface and identify favorable seed-surface configurations, which is necessary for reliable predictions of crystal polymorphs that form and the corresponding heterogeneous nucleation rates. We demonstrate and validate RSeeds for heterogeneous ice nucleation on a flexible self-assembled monolayer surface, a mineral surface based on kaolinite, and two model surfaces. RSeeds predicts the correct ice polymorph, exposed crystal plane, and rotation on the surface. RSeeds is semiquantitative and can be used to estimate the critical nucleus size and nucleation rate when combined with classical nucleation theory. We demonstrate that RSeeds can be used to evaluate nucleation rates spanning many orders of magnitude.
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Affiliation(s)
- Tianmu Yuan
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
- Department of Chemical Engineering, The University of Manchester, Manchester, U.K. M13 9PL
| | - Ryan S DeFever
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Jiarun Zhou
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | | | - Sapna Sarupria
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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Gorobets S, Gorobets O, Gorobets Y, Bulaievska M. Chain-Like Structures of Biogenic and Nonbiogenic Magnetic Nanoparticles in Vascular Tissues. Bioelectromagnetics 2022; 43:119-143. [PMID: 35077582 DOI: 10.1002/bem.22390] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 12/11/2021] [Accepted: 01/08/2022] [Indexed: 12/29/2022]
Abstract
In this paper, slices of organs from various organisms (animals, plants, fungi) were investigated by using atomic force microscopy and magnetic force microscopy to identify common features of localization of both biogenic and nonbiogenic magnetic nanoparticles. It was revealed that both biogenic and nonbiogenic magnetic nanoparticles are localized in the form of chains of separate nanoparticles or chains of conglomerates of nanoparticles in the walls of the capillaries of animals and the walls of the conducting tissue of plants and fungi. Both biogenic and nonbiogenic magnetic nanoparticles are embedded as a part of the transport system in multicellular organisms. In connection with this, a new idea of the function of biogenic magnetic nanoparticles is discussed, that the chains of biogenic magnetic nanoparticles and chains of conglomerates of biogenic magnetic nanoparticles represent ferrimagnetic organelles of a specific purpose. Besides, magnetic dipole-dipole interaction of biogenic magnetic nanoparticles with magnetically labeled drugs or contrast agents for magnetic resonance imaging should be considered when designing the drug delivery and other medical systems because biogenic magnetic nanoparticles in capillary walls will serve as the trapping centers for the artificial magnetic nanoparticles. The aggregates of both artificial and biogenic magnetic nanoparticles can be formed, contributing to the risk of vascular occlusion. Bioelectromagnetics. 43:119-143, 2022. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Svitlana Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | - Oksana Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine.,Institute of Magnetism NAS of Ukraine and MES of Ukraine, Kyiv, Ukraine
| | - Yuri Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine.,Institute of Magnetism NAS of Ukraine and MES of Ukraine, Kyiv, Ukraine
| | - Maryna Bulaievska
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
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Kang T, Hoptowit R, Jun S. Effects of an oscillating magnetic field on ice nucleation in aqueous iron‐oxide nanoparticle dispersions during supercooling and preservation of beef as a food application. J FOOD PROCESS ENG 2020. [DOI: 10.1111/jfpe.13525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Taiyoung Kang
- Department of Molecular Biosciences and Bioengineering University of Hawaii at Manoa Honolulu Hawaii USA
| | - Raymond Hoptowit
- Department of Molecular Biosciences and Bioengineering University of Hawaii at Manoa Honolulu Hawaii USA
| | - Soojin Jun
- Department of Human Nutrition, Food and Animal Sciences University of Hawaii at Manoa Honolulu Hawaii USA
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Kang T, You Y, Jun S. Supercooling preservation technology in food and biological samples: a review focused on electric and magnetic field applications. Food Sci Biotechnol 2020; 29:303-321. [PMID: 32257514 PMCID: PMC7105587 DOI: 10.1007/s10068-020-00750-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/27/2020] [Accepted: 03/10/2020] [Indexed: 12/27/2022] Open
Abstract
Freezing has been widely recognized as the most common process for long-term preservation of perishable foods; however, unavoidable damages associated with ice crystal formation lead to unacceptable quality losses during storage. As an alternative, supercooling preservation has a great potential to extend the shelf-life and maintain quality attributes of fresh foods without freezing damage. Investigations for the application of external electric field (EF) and magnetic field (MF) have theorized that EF and MF appear to be able to control ice nucleation by interacting with water molecules in foods and biomaterials; however, many questions remain open in terms of their roles and influences on ice nucleation with little consensus in the literature and a lack of clear understanding of the underlying mechanisms. This review is focused on understanding of ice nucleation processes and introducing the applications of EF and MF for preservation of food and biological materials.
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Affiliation(s)
- Taiyoung Kang
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822 USA
| | - Youngsang You
- Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, Hawaii 96822 USA
| | - Soojin Jun
- Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, Hawaii 96822 USA
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Hunt CJ. Technical Considerations in the Freezing, Low-Temperature Storage and Thawing of Stem Cells for Cellular Therapies. Transfus Med Hemother 2019; 46:134-150. [PMID: 31244583 PMCID: PMC6558338 DOI: 10.1159/000497289] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 01/26/2019] [Indexed: 12/31/2022] Open
Abstract
The commercial and clinical development of cellular therapy products will invariably require cryopreservation and frozen storage of cellular starting materials, intermediates and/or final product. Optimising cryopreservation is as important as optimisation of the cell culture process in obtaining maximum yield and a consistent end-product. Suboptimal cryopreservation can lead not only to batch-to-batch variation, lowered cellular functionality and reduced cell yield, but also to the potential selection of subpopulations with genetic or epigenetic characteristics divergent from the original cell line. Regulatory requirements also impact on cryopreservation as these will require a robust and reproducible approach to the freezing, storage and thawing of the product. This requires attention to all aspects of the application of low temperatures: from the choice of freezing container and cryoprotectant, the cooling rate employed and its mode of de-livery, the correct handling of the frozen material during storage and transportation, to the eventual thawing of the product by the end-user. Each of these influences all of the others to a greater or lesser extent and none should be ignored. This paper seeks to provide practical insights and alternative solutions to the technical challenges faced during cryopreservation of cells for use in cellular therapies.
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Abstract
Freeze casting under external fields (magnetic, electric, or acoustic) produces porous materials having local, regional, and global microstructural order in specific directions. In freeze casting, porosity is typically formed by the directional solidification of a liquid colloidal suspension. Adding external fields to the process allows for structured nucleation of ice and manipulation of particles during solidification. External control over the distribution of particles is governed by a competition of forces between constitutional supercooling and electromagnetism or acoustic radiation. Here, we review studies that apply external fields to create porous ceramics with different microstructural patterns, gradients, and anisotropic alignments. The resulting materials possess distinct gradient, core–shell, ring, helical, or long-range alignment and enhanced anisotropic mechanical properties.
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Kobayashi A, Horikawa M, Kirschvink JL, Golash HN. Magnetic control of heterogeneous ice nucleation with nanophase magnetite: Biophysical and agricultural implications. Proc Natl Acad Sci U S A 2018; 115:5383-5388. [PMID: 29735681 PMCID: PMC6003474 DOI: 10.1073/pnas.1800294115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
In supercooled water, ice nucleation is a stochastic process that requires ∼250-300 molecules to transiently achieve structural ordering before an embryonic seed crystal can nucleate. This happens most easily on crystalline surfaces, in a process termed heterogeneous nucleation; without such surfaces, water droplets will supercool to below -30 °C before eventually freezing homogeneously. A variety of fundamental processes depends on heterogeneous ice nucleation, ranging from desert-blown dust inducing precipitation in clouds to frost resistance in plants. Recent experiments have shown that crystals of nanophase magnetite (Fe3O4) are powerful nucleation sites for this heterogeneous crystallization of ice, comparable to other materials like silver iodide and some cryobacterial peptides. In natural materials containing magnetite, its ferromagnetism offers the possibility that magneto-mechanical motion induced by external oscillating magnetic fields could act to disrupt the water-crystal interface, inhibiting the heterogeneous nucleation process in subfreezing water and promoting supercooling. For this to act, the magneto-mechanical rotation of the particles should be higher than the magnitude of Brownian motions. We report here that 10-Hz precessing magnetic fields, at strengths of 1 mT and above, on ∼50-nm magnetite crystals dispersed in ultrapure water, meet these criteria and do indeed produce highly significant supercooling. Using these rotating magnetic fields, we were able to elicit supercooling in two representative plant and animal tissues (celery and bovine muscle), both of which have detectable, natural levels of ferromagnetic material. Tailoring magnetic oscillations for the magnetite particle size distribution in different tissues could maximize this supercooling effect.
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Affiliation(s)
- Atsuko Kobayashi
- Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, 152-8550 Tokyo, Japan;
| | - Masamoto Horikawa
- Department of Systems and Control Engineering, Tokyo Institute of Technology, Meguro, 152-8552 Tokyo, Japan
| | - Joseph L Kirschvink
- Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, 152-8550 Tokyo, Japan
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125
| | - Harry N Golash
- Robotics Institute, Carnegie Mellon University, Pittsburgh, PA 15213
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An Overview on Magnetic Field and Electric Field Interactions with Ice Crystallisation; Application in the Case of Frozen Food. CRYSTALS 2017. [DOI: 10.3390/cryst7100299] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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