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Gerhäuser J, Hale J, Wefers D, Gaukel V. Furcellaran: Impact of Concentration, Rheological Properties, and Structure on Ice Recrystallization Inhibition Activity. Biomacromolecules 2024; 25:4535-4544. [PMID: 38973364 DOI: 10.1021/acs.biomac.4c00541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Recrystallization is considered the main damaging mechanism during the frozen storage of biologic materials. In this study, furcellaran, a polysaccharide related to κ-carrageenan, was studied for its concentration-dependent effect on ice crystal growth and recrystallization. The structure and sulfate content of the utilized furcellaran was analyzed by 1H nuclear magnetic resonance spectroscopy, ion chromatography, and high-performance size-exclusion chromatography. Additionally, the rheological properties of furcellaran solutions were investigated. Our findings demonstrate that furcellaran inhibits ice growth as effectively as κ-carrageenan. Furthermore, the rheological properties change with increasing furcellaran concentration, resulting in a gel-like consistency at 5 g/L, which coincides with decreased recrystallization inhibition activity and larger crystals. This suggests that gel formation or a gel-like consistency has to be avoided for optimal recrystallization inhibition activity.
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Affiliation(s)
- Julian Gerhäuser
- Institute of Process Engineering in Life Sciences, Food Process Engineering, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
| | - Julia Hale
- Institute of Applied Biosciences, Department of Food Chemistry and Phytochemistry, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
| | - Daniel Wefers
- Institute of Chemistry, Food Chemistry, Martin Luther University Halle Wittenberg, Universitätsplatz 10, 06108 Halle, Germany
| | - Volker Gaukel
- Institute of Process Engineering in Life Sciences, Food Process Engineering, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
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Lee M, Lee SY, Kang MH, Won TK, Kang S, Kim J, Park J, Ahn DJ. Observing growth and interfacial dynamics of nanocrystalline ice in thin amorphous ice films. Nat Commun 2024; 15:908. [PMID: 38291035 PMCID: PMC10827800 DOI: 10.1038/s41467-024-45234-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/16/2024] [Indexed: 02/01/2024] Open
Abstract
Ice crystals at low temperatures exhibit structural polymorphs including hexagonal ice, cubic ice, or a hetero-crystalline mixture of the two phases. Despite the significant implications of structure-dependent roles of ice, mechanisms behind the growths of each polymorph have been difficult to access quantitatively. Using in-situ cryo-electron microscopy and computational ice-dynamics simulations, we directly observe crystalline ice growth in an amorphous ice film of nanoscale thickness, which exhibits three-dimensional ice nucleation and subsequent two-dimensional ice growth. We reveal that nanoscale ice crystals exhibit polymorph-dependent growth kinetics, while hetero-crystalline ice exhibits anisotropic growth, with accelerated growth occurring at the prismatic planes. Fast-growing facets are associated with low-density interfaces that possess higher surface energy, driving tetrahedral ordering of interfacial H2O molecules and accelerating ice growth. These findings, based on nanoscale observations, improve our understanding on early stages of ice formation and mechanistic roles of the ice interface.
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Affiliation(s)
- Minyoung Lee
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Center for Nanoparticle Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Sang Yup Lee
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
- KU-KIST Graduate school of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
- The w:i Interface Augmentation Center, Korea University, Seoul, 02841, Republic of Korea
| | - Min-Ho Kang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, Bucheon-si, 14662, Republic of Korea
- Department of Biotechnology, The Catholic University of Korea, Bucheon-si, 14662, Republic of Korea
| | - Tae Kyung Won
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
- The w:i Interface Augmentation Center, Korea University, Seoul, 02841, Republic of Korea
| | - Sungsu Kang
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Center for Nanoparticle Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Joodeok Kim
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Center for Nanoparticle Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Jungwon Park
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.
- Center for Nanoparticle Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea.
- Institute of Engineering Research, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
- Advanced Institutes of Convergence Technology, Seoul National University, Suwon-si, 16229, Republic of Korea.
| | - Dong June Ahn
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea.
- KU-KIST Graduate school of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea.
- The w:i Interface Augmentation Center, Korea University, Seoul, 02841, Republic of Korea.
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Kim YD, Jung WH, Ahn DJ, Lim DK. Self-Assembled Nanostructures of Homo-Oligopeptide as a Potent Ice Growth Inhibitor. NANO LETTERS 2023; 23:9500-9507. [PMID: 37843112 DOI: 10.1021/acs.nanolett.3c03059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
This study reports the formation of self-assembled nanostructures with homo-oligopeptides consisting of amino acids (i.e., alanine, threonine, valine, and tyrosine), the resulting morphologies (i.e., spherical shape, layered structure, and wire structure) in aqueous solution, and their potential as ice growth inhibitors. Among the homo-oligopeptides investigated, an alanine homo-oligopeptide (n = 5) with a spherical nanostructure showed the highest ice recrystallization inhibition (IRI) activity without showing a burst ice growth property and with low ice nucleation activity. The presence of nanoscale self-assembled structures in the solution showed superior IRI activity compared to an amino acid monomer because of the higher binding affinity of structures on the growing ice crystal plane. Simulation results revealed that the presence of nanostructures induced a significant inhibition of ice growth and increased lifetime of hydrogen bonding compared with unassembled homo-oligopeptide. These results envision extraordinary performance for self-assembled nanostructures as a desirable and potent ice growth inhibitor.
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Affiliation(s)
- Yong Duk Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Woo Hyuk Jung
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dong June Ahn
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dong-Kwon Lim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Integrative Energy Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Brain Science Institute, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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Kang H, Kim SE, Park YI, Kim JC, Jeong JE, Jung H, Lee H, Hwang SY, Cheong IW, Lee SH, Seo E. Polyether-based waterborne synergists: effect of polymer topologies on pigment dispersion. RSC Adv 2023; 13:31092-31100. [PMID: 37881755 PMCID: PMC10594153 DOI: 10.1039/d3ra06427a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Control of polymer topologies is essential to determine their unique physical properties and potential applications. The polymer topologies can have a critical effect on pigment dispersion owing to their unique architectures; however, studies using polymer topologies on pigment dispersion in aqueous systems are scarce. Thus, this study proposes various topologies of polyether-based waterborne synergists, such as linear, hyperbranched, and branched cyclic structures. Specifically, we applied branched types of polyglycidols (PGs) as a synergist to provide polymer topology-dependent dispersibility for the surface-modification of Red 170 particles through adsorption and steric hindrance. The topology-controlled PG synergists (PGSs) were successfully prepared by post-polymerization modification with phthalimide and benzoyl groups. Particularly, the branched types of PGSs, branched cyclic PGS (bc-PGS), and hyperbranched PGS (hb-PGS) exhibited improved dispersibility through adsorption on top of the pigment, interaction between dispersant (BYK 190) and pigment, and steric effect. Surprisingly, hb-PGS conferred the Red 170 pigment particles with superior storage stability than that of bc-PGS despite their similar structural features. This study suggests the widespread potential application of PGSs as waterborne synergists for various dispersion applications.
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Affiliation(s)
- Hansol Kang
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
- Department of Applied Chemistry, Kyungpook National University (KNU) Daegu 41566 Republic of Korea
| | - Si Eun Kim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
| | - Young Il Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
| | - Jin Chul Kim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
| | - Ji-Eun Jeong
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
| | - Hyocheol Jung
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
| | - Hyosun Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University 80 Daehakro, Buk-gu Daegu 41566 Republic of Korea
| | - Sung Yeon Hwang
- Department of Plant & Environmental New Resources and Graduate School of Biotechnology, Kyung Hee University Gyeonggi-do 17104 Republic of Korea
| | - In Woo Cheong
- Department of Applied Chemistry, Kyungpook National University (KNU) Daegu 41566 Republic of Korea
| | - Sang-Ho Lee
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST) Daejeon 34113 Republic of Korea
| | - Eunyong Seo
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology Ulsan 44412 Republic of Korea
- Department of Chemical Engineering, Ulsan College Ulsan 44610 Republic of Korea
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