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Gubaidullin AT, Galeeva AI, Galyametdinov YG, Ageev GG, Piryazev AA, Ivanov DA, Ermakova EA, Nikiforova AA, Derkach SR, Zueva OS, Zuev YF. Modulation of Structural and Physical-Chemical Properties of Fish Gelatin Hydrogel by Natural Polysaccharides. Int J Mol Sci 2025; 26:2901. [PMID: 40243495 PMCID: PMC11988395 DOI: 10.3390/ijms26072901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2025] [Revised: 03/14/2025] [Accepted: 03/20/2025] [Indexed: 04/18/2025] Open
Abstract
Gelatin, a water-soluble protein, shows unique gellification properties, which determine the active commercial availability of gelatin hydrogels in modern alimentary, cosmetic, and pharmaceutical applications. The traditional sources of gelatin for industrial technologies are pork and bovine skin and bones, which sometimes produce religious and some other restrictions. In recent years, there has been a significant increase in the production of gelatin from alternative sources, such as raw fish materials. Unfortunately, fish gelatin is characterized by weak gelling ability and a decrease in gelation and melting temperature, which are a consequence of the amino acid composition and structural features of fish gelatin. One of the ways to strengthen the natural gelling properties of fish gelatin is the structural modification of gelatin hydrogels by the introduction of polysaccharides of various natural origins. We have studied the association of our laboratory-made fish gelatin with three polysaccharides, namely, κ-carrageenan, alginate, and chitosan, which have distinct chemical structures and gelling capabilities. Structural features of the studied systems were analyzed by small-angle X-ray scattering (SAXS), powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM). We applied computer modeling of molecular interactions between fish gelatin and polysaccharides by means of molecular docking and molecular dynamics approaches. The existence of a correlation between the structure of gelatin-polysaccharide systems and their physicochemical properties was demonstrated by wetting angles (flow angles) and dynamic light scattering (DLS) studies of hydrodynamic sizes and surface ζ-potential.
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Affiliation(s)
- Aidar T. Gubaidullin
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia (A.A.N.)
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Street 8, 420088 Kazan, Russia
| | - Aliya I. Galeeva
- Physical and Colloid Chemistry Department, Kazan National Research Technological University, 420015 Kazan, Russia; (A.I.G.); (Y.G.G.)
| | - Yuriy G. Galyametdinov
- Physical and Colloid Chemistry Department, Kazan National Research Technological University, 420015 Kazan, Russia; (A.I.G.); (Y.G.G.)
| | - Georgiy G. Ageev
- Scientific Center for Genetics and Life Sciences, Sirius University of Science and Technology, Olympic Avenue, 1, 354340 Sochi, Russia; (G.G.A.); (A.A.P.); (D.A.I.)
| | - Alexey A. Piryazev
- Scientific Center for Genetics and Life Sciences, Sirius University of Science and Technology, Olympic Avenue, 1, 354340 Sochi, Russia; (G.G.A.); (A.A.P.); (D.A.I.)
| | - Dimitri A. Ivanov
- Scientific Center for Genetics and Life Sciences, Sirius University of Science and Technology, Olympic Avenue, 1, 354340 Sochi, Russia; (G.G.A.); (A.A.P.); (D.A.I.)
- Institut de Sciences des Matériaux de Mulhouse–IS2M, CNRS UMR 7361, F-68057 Mulhouse, France
| | - Elena A. Ermakova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia (A.A.N.)
| | - Alena A. Nikiforova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia (A.A.N.)
- A. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
| | - Svetlana R. Derkach
- Institute of Natural Sciences and Technology, Murmansk Arctic University, Sportivnaya Str. 13, 183010 Murmansk, Russia;
| | - Olga S. Zueva
- Institute of Electric Power Engineering and Electronics, Kazan State Power Engineering University, Krasnoselskaya St. 51, 420066 Kazan, Russia;
| | - Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia (A.A.N.)
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Bäumchen A, Balsters JM, Nenninger BS, Diebels S, Zimmermann H, Roland M, Gepp MM. Towards a Comprehensive Framework for Made-to-Measure Alginate Scaffolds for Tissue Engineering Using Numerical Simulation. Gels 2025; 11:185. [PMID: 40136890 PMCID: PMC11942394 DOI: 10.3390/gels11030185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2024] [Revised: 02/03/2025] [Accepted: 02/20/2025] [Indexed: 03/27/2025] Open
Abstract
Alginate hydrogels are integral to many cell-based models in tissue engineering and regenerative medicine. As a natural biomaterial, the properties of alginates can vary and be widely adjusted through the gelation process, making them versatile additives or bulk materials for scaffolds, microcarriers or encapsulation matrices in tissue engineering and regenerative medicine. The requirements for alginates used in biomedical applications differ significantly from those for technical applications. Particularly, the generation of novel niches for stem cells requires reliable and predictable properties of the resulting hydrogel. Ultra-high viscosity (UHV) alginates possess alginates with special physicochemical properties, and thus far, numerical simulations for the gelation process are currently lacking but highly relevant for future designs of stem cell niches and cell-based models. In this article, the gelation of UHV alginates is studied using a microscopic approach for disc- and sphere-shaped hydrogels. Based on the collected data, a multiphase continuum model was implemented to describe the cross-linking process of UHV alginate polysaccharides. The model utilizes four coupled kinetic equations based on mixture theory, which are solved using finite element software. A good agreement between simulation results and experimental data was found, establishing a foundation for future refinements in the development of an interactive tool for cell biologists and material scientists.
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Affiliation(s)
- Alexander Bäumchen
- Applied Mechanics, Saarland University, Campus A4 2, 66123 Saarbruecken, Germany; (A.B.); (S.D.)
| | - Johnn Majd Balsters
- Fraunhofer Institute for Biomedical Engineering (IBMT), Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany; (J.M.B.); (B.-S.N.); (H.Z.); (M.M.G.)
- Molecular and Cellular Biotechnology/Nanotechnology, Saarland University, Campus Saarbruecken, 66123 Saarbruecken, Germany
| | - Beate-Sophie Nenninger
- Fraunhofer Institute for Biomedical Engineering (IBMT), Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany; (J.M.B.); (B.-S.N.); (H.Z.); (M.M.G.)
- Molecular and Cellular Biotechnology/Nanotechnology, Saarland University, Campus Saarbruecken, 66123 Saarbruecken, Germany
| | - Stefan Diebels
- Applied Mechanics, Saarland University, Campus A4 2, 66123 Saarbruecken, Germany; (A.B.); (S.D.)
| | - Heiko Zimmermann
- Fraunhofer Institute for Biomedical Engineering (IBMT), Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany; (J.M.B.); (B.-S.N.); (H.Z.); (M.M.G.)
- Molecular and Cellular Biotechnology/Nanotechnology, Saarland University, Campus Saarbruecken, 66123 Saarbruecken, Germany
- Faculty of Marine Science, Universidad Católica del Norte, Larrondo 1281, Coquimbo 1780000, Chile
| | - Michael Roland
- Applied Mechanics, Saarland University, Campus A4 2, 66123 Saarbruecken, Germany; (A.B.); (S.D.)
| | - Michael M. Gepp
- Fraunhofer Institute for Biomedical Engineering (IBMT), Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany; (J.M.B.); (B.-S.N.); (H.Z.); (M.M.G.)
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Zhu X, Fan C, Fang Y, Yu W, Xie Y, Liu H. Fouling and Chemical Cleaning Strategies for Submerged Ultrafiltration Membrane: Synchronized Bench-Scale, Full-Scale, and Engineering Tests. MEMBRANES 2024; 14:251. [PMID: 39728701 DOI: 10.3390/membranes14120251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2024] [Revised: 11/15/2024] [Accepted: 11/18/2024] [Indexed: 12/28/2024]
Abstract
This study investigated membrane fouling issues associated with the operation of a submerged ultrafiltration membrane in a drinking water treatment plant (DWTP) and optimized the associated chemical cleaning strategies. By analyzing the surface components of the membrane foulant and the compositions of the membrane cleaning solution, the primary causes of membrane fouling were identified. Membrane fouling control strategies suitable for the DWTP were evaluated through chemical cleaning tests conducted for bench-scale, full-scale, and engineering cases. The results show that the membrane foulants were primarily composed of a mixture of inorganics and organics; the inorganics were mainly composed of Al and Si, while the organics were primarily humic acid (HA). Sodium citrate proved to be the most effective cleaning agent for inorganic fouling, which was mainly composed of Al, whereas sodium hypochlorite (NaClO) combined with sodium hydroxide (NaOH) showed the best removal efficiency for organic fouling, which predominantly consisted of HA and Si. However, sodium hypochlorite (NaClO) combined with sodium hydroxide (NaOH) showed the best removal efficiency for organic fouling and Si; organic fouling predominantly consisted of HA. Based on the bench-scale test results, flux recovery was verified in the full-scale system. Under a constant pressure of 30 kPa, the combined acid-alkali cleaning achieved the best flux recovery, restoring the flux from 22.8 L/(m2·h) to 66.75 L/(m2·h). In the engineering tests, combined acid-alkali cleaning yielded results consistent with those of the full-scale tests. In the practical engineering cleaning process, adopting a cleaning strategy of alkaline (NaClO + NaOH) cleaning followed by acidic (sodium citrate) cleaning can effectively solve the membrane fouling problem.
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Affiliation(s)
- Xiwang Zhu
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Chengyue Fan
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Yichen Fang
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Wenqing Yu
- Zhejiang Supcon Information Co., Ltd., Hangzhou 310056, China
| | - Yawei Xie
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Hongyuan Liu
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
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Zuev YF, Derkach SR, Bogdanova LR, Voron’ko NG, Kuchina YA, Gubaidullin AT, Lunev IV, Gnezdilov OI, Sedov IA, Larionov RA, Latypova L, Zueva OS. Underused Marine Resources: Sudden Properties of Cod Skin Gelatin Gel. Gels 2023; 9:990. [PMID: 38131976 PMCID: PMC10742947 DOI: 10.3390/gels9120990] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
The main object of this work was to characterize the structure and properties of laboratory-made fish gelatin from cod skin in comparison with known commercial gelatins of fish and mammalian origin. This is one way we can contribute to the World Food Program and characterize foodstuff resources from alternative natural sources. Our research was based on the combination of an expanded set of complementary physical-chemical methods to study the similarities and distinctions of hydrogels from traditional and novel gelatin sources from underused marine resources. In this work, we have compared the morphology, supramolecular structure and colloid properties of two commercial (mammalian and fish) gelatins with gelatin we extracted from cold-water cod skin in laboratory conditions. The obtained results are novel, showing that our laboratory-produced fish gelatin is much closer to the mammalian one in terms of such parameters as thermal stability and strength of structural network under temperature alterations. Especially interesting are our experimental observations comparing both fish gelatins: it was shown that the laboratory-extracted cod gelatin is essentially more thermally stable compared to its commercial analogue, being even closer in its rheological properties to the mammalian one.
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Affiliation(s)
- Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia (A.T.G.); (I.V.L.); (I.A.S.)
| | - Svetlana R. Derkach
- Laboratory of Chemistry and Technology of Marine Bioresources, Institute of Natural Science and Technology, Murmansk State Technical University, 183010 Murmansk, Russia; (S.R.D.); (N.G.V.); (Y.A.K.)
| | - Liliya R. Bogdanova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia (A.T.G.); (I.V.L.); (I.A.S.)
| | - Nikolai G. Voron’ko
- Laboratory of Chemistry and Technology of Marine Bioresources, Institute of Natural Science and Technology, Murmansk State Technical University, 183010 Murmansk, Russia; (S.R.D.); (N.G.V.); (Y.A.K.)
| | - Yulia A. Kuchina
- Laboratory of Chemistry and Technology of Marine Bioresources, Institute of Natural Science and Technology, Murmansk State Technical University, 183010 Murmansk, Russia; (S.R.D.); (N.G.V.); (Y.A.K.)
| | - Aidar T. Gubaidullin
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia (A.T.G.); (I.V.L.); (I.A.S.)
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Ivan V. Lunev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia (A.T.G.); (I.V.L.); (I.A.S.)
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (O.I.G.); (R.A.L.)
| | - Oleg I. Gnezdilov
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (O.I.G.); (R.A.L.)
| | - Igor A. Sedov
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia (A.T.G.); (I.V.L.); (I.A.S.)
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (O.I.G.); (R.A.L.)
| | - Radik A. Larionov
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (O.I.G.); (R.A.L.)
| | - Larisa Latypova
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin 150001, China;
| | - Olga S. Zueva
- Institute of Electric Power Engineering and Electronics, Kazan State Power Engineering University, 51 Krasnoselskaya Street, 420066 Kazan, Russia;
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