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Zhang YX, Wang YS, Chen Y, Luan QY, Ding MY, Chen HH. Effects of secondary cross-linking on the physicochemical properties of sodium alginate-hydrogel and in vitro release of anthocyanins. Int J Biol Macromol 2024; 276:133926. [PMID: 39025180 DOI: 10.1016/j.ijbiomac.2024.133926] [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: 04/22/2024] [Revised: 07/06/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
To enhance the physicochemical properties and extend the release duration of sodium alginate (SA) hydrogels, this study explored the impact of acidifier type and the number of cross-linking on the physicochemical characteristics and in vitro anthocyanin release from SA hydrogels, utilizing calcium carbonate as the cross-linking agent. The findings revealed that the utilization of gluconolactone (GDL) as an acidifying agent in the preparation of SA hydrogels, as opposed to hydrochloric acid, resulted in a deceleration of the hydrolysis process of calcium carbonate. This deceleration led to the strengthening of hydrogen-bonding interactions and the development of a more compact network structure within the SA hydrogels. Consequently, there was a noticeable enhancement in the hardness, relaxation time, and anthocyanin encapsulation efficiency of the gels. Additionally, the release of anthocyanins in simulated intestinal fluid was delayed. Secondary cross-linking was found to facilitate ionic interactions between SA and Ca2+, further intensifying the denseness of the network structure and enhancing the physicochemical characteristics of the SA hydrogels. Overall, SA hydrogels processed with GDL as the acidifier and subjected to secondary cross-linking exhibited improved physicochemical properties, delayed release effects, and proved to be an efficient system for the delayed release of anthocyanins.
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Affiliation(s)
- Yi-Xiu Zhang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yu-Sheng Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yan Chen
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Qian-Yu Luan
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Ming-Yu Ding
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Hai-Hua Chen
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, PR China; Bathurst Future Agri-Tech Institute, Qingdao Agricultural University, Qingdao, 266109, PR China.
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2
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Qiao S, Peijie T, Nan J. Crosslinking strategies of decellularized extracellular matrix in tissue regeneration. J Biomed Mater Res A 2024; 112:640-671. [PMID: 37990863 DOI: 10.1002/jbm.a.37650] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/23/2023]
Abstract
By removing the immunogenic cellular components through various decellularization methods, decellularized extracellular matrix (dECM) is considered a promising material in the field of tissue engineering and regenerative medicine with highly preserved physicochemical properties and superior biocompatibility. However, decellularization treatment can lead to some loss of structural integrity, mechanical strength, degradation stability, and biological performance of dECM biomaterials. Therefore, physical and chemical crosslinking methods are preferred to restore or even improve the biomechanical properties, stability, and bioactivity, and to achieve a delicate balance between degradation of the implanted biomaterial and regeneration of the host tissue. This review provides an overview of dECM biomaterials, and describes and compares the mechanisms and characteristics of commonly used crosslinking methods for dECM, with a focus on the potential applications of versatile dECM-based biomaterials derived from skin, cardiac tissues (pericardium, heart valves, myocardial tissue), blood vessels, liver, and kidney, modified with different chemical crosslinking reagents, in tissue and organ regeneration.
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Affiliation(s)
- Su Qiao
- State Key Laboratory of Oral Diseases/National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Tan Peijie
- State Key Laboratory of Oral Diseases/National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jiang Nan
- State Key Laboratory of Oral Diseases/National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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3
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Herzog J, Franke L, Lai Y, Gomez Rossi P, Sachtleben J, Weuster-Botz D. 3D bioprinting of microorganisms: principles and applications. Bioprocess Biosyst Eng 2024; 47:443-461. [PMID: 38296889 PMCID: PMC11003907 DOI: 10.1007/s00449-023-02965-3] [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: 10/20/2023] [Accepted: 12/24/2023] [Indexed: 02/02/2024]
Abstract
In recent years, the ability to create intricate, live tissues and organs has been made possible thanks to three-dimensional (3D) bioprinting. Although tissue engineering has received a lot of attention, there is growing interest in the use of 3D bioprinting for microorganisms. Microorganisms like bacteria, fungi, and algae, are essential to many industrial bioprocesses, such as bioremediation as well as the manufacture of chemicals, biomaterials, and pharmaceuticals. This review covers current developments in 3D bioprinting methods for microorganisms. We go over the bioink compositions designed to promote microbial viability and growth, taking into account factors like nutrient delivery, oxygen supply, and waste elimination. Additionally, we investigate the most important bioprinting techniques, including extrusion-based, inkjet, and laser-assisted approaches, as well as their suitability with various kinds of microorganisms. We also investigate the possible applications of 3D bioprinted microbes. These range from constructing synthetic microbial consortia for improved metabolic pathway combinations to designing spatially patterned microbial communities for enhanced bioremediation and bioprocessing. We also look at the potential for 3D bioprinting to advance microbial research, including the creation of defined microenvironments to observe microbial behavior. In conclusion, the 3D bioprinting of microorganisms marks a paradigm leap in microbial bioprocess engineering and has the potential to transform many application areas. The ability to design the spatial arrangement of various microorganisms in functional structures offers unprecedented possibilities and ultimately will drive innovation.
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Affiliation(s)
- Josha Herzog
- Department of Energy and Process Engineering, TUM School of Engineering and Design, Chair of Biochemical Engineering, Technical University of Munich, Boltzmannstraße 15, 85748, Garching, Germany
| | - Lea Franke
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Petersgasse 5, 94315, Straubing, Germany
| | - Yingyao Lai
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Petersgasse 5, 94315, Straubing, Germany
| | - Pablo Gomez Rossi
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Petersgasse 5, 94315, Straubing, Germany
| | - Janina Sachtleben
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Petersgasse 5, 94315, Straubing, Germany
| | - Dirk Weuster-Botz
- Department of Energy and Process Engineering, TUM School of Engineering and Design, Chair of Biochemical Engineering, Technical University of Munich, Boltzmannstraße 15, 85748, Garching, Germany.
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4
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Kim J, Jeong JP, Kim Y, Jung S. Physicochemical and Rheological Properties of Succinoglycan Overproduced by Sinorhizobium meliloti 1021 Mutant. Polymers (Basel) 2024; 16:244. [PMID: 38257044 PMCID: PMC10819756 DOI: 10.3390/polym16020244] [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: 12/14/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Commercial bacterial exopolysaccharide (EPS) applications have been gaining interest; therefore, strains that provide higher yields are required for industrial-scale processes. Succinoglycan (SG) is a type of bacterial anionic exopolysaccharide produced by Rhizobium, Agrobacterium, and other soil bacterial species. SG has been widely used as a pharmaceutical, cosmetic, and food additive based on its properties as a thickener, texture enhancer, emulsifier, stabilizer, and gelling agent. An SG-overproducing mutant strain (SMC1) was developed from Sinorhizobium meliloti 1021 through N-methyl-N'-nitro-N-nitrosoguanidine (NTG) mutation, and the physicochemical and rheological properties of SMC1-SG were analyzed. SMC1 produced (22.3 g/L) 3.65-fold more SG than did the wild type. Succinoglycan (SMC1-SG) overproduced by SMC1 was structurally characterized by FT-IR and 1H NMR spectroscopy. The molecular weights of SG and SMC1-SG were 4.20 × 105 and 4.80 × 105 Da, respectively, as determined by GPC. Based on DSC and TGA, SMC1-SG exhibited a higher endothermic peak (90.9 °C) than that of SG (77.2 °C). Storage modulus (G') and loss modulus (G″) measurements during heating and cooling showed that SMC1-SG had improved thermal behavior compared to that of SG, with intersections at 74.9 °C and 72.0 °C, respectively. The SMC1-SG's viscosity reduction pattern was maintained even at high temperatures (65 °C). Gelation by metal cations was observed in Fe3+ and Cr3+ solutions for both SG and SMC1-SG. Antibacterial activities of SG and SMC1-SG against Escherichia coli and Staphylococcus aureus were also observed. Therefore, like SG, SMC1-SG may be a potential biomaterial for pharmaceutical, cosmetic, and food industries.
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Affiliation(s)
- Jaeyul Kim
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (J.K.); (J.-p.J.); (Y.K.)
| | - Jae-pil Jeong
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (J.K.); (J.-p.J.); (Y.K.)
| | - Yohan Kim
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (J.K.); (J.-p.J.); (Y.K.)
| | - Seunho Jung
- Department of System Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
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Monteiro APF, Pérez-Jiménez A, Spitzlei C, Caucheteux J, Alves VD, Lambert S, Grandfils C. Interpenetrating alginate network as drug delivery matrix: Effects on protein stability and release. J Biomed Mater Res B Appl Biomater 2024; 112:e35354. [PMID: 37986690 DOI: 10.1002/jbm.b.35354] [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: 06/06/2023] [Revised: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
The study investigates the rheological properties and protein release capacity of a uniform hydrogel composed of sodium alginate (SA) and poloxamer (P407). The hydrogel is prepared through the sustained release of calcium ions, resulting in a reinforced and homogeneous interpenetrating networks (IPNs) of SA and P407 polymeric chains. By adjusting the amount of crosslink agent, the hydrogel exhibites an adjustable dissolution ratio and adaptable gelling time. Moreover, the composite showed a well-structured network and superior mechanical strength, enabling the sustained release of both calcium ions and Soybean Trypsin Inhibitor (STI) protein, a model of Bone Morphogenic Protein (BMP). Importantly, the protein release kinetic can be tuned based on the SA content in the polymeric blend, highlighting the versatile nature of this hydrogel for drug delivery purposes.
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Affiliation(s)
- Ana P F Monteiro
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Aurora Pérez-Jiménez
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Claire Spitzlei
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Joachim Caucheteux
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Vitor Delgado Alves
- LEAF-Linking Landscape Environment Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Stéphanie Lambert
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Christian Grandfils
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
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6
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Adamiak K, Sionkowska A. State of Innovation in Alginate-Based Materials. Mar Drugs 2023; 21:353. [PMID: 37367678 PMCID: PMC10302983 DOI: 10.3390/md21060353] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
This review article presents past and current alginate-based materials in each application, showing the widest range of alginate's usage and development in the past and in recent years. The first segment emphasizes the unique characteristics of alginates and their origin. The second segment sets alginates according to their application based on their features and limitations. Alginate is a polysaccharide and generally occurs as water-soluble sodium alginate. It constitutes hydrophilic and anionic polysaccharides originally extracted from natural brown algae and bacteria. Due to its promising properties, such as gelling, moisture retention, and film-forming, it can be used in environmental protection, cosmetics, medicine, tissue engineering, and the food industry. The comparison of publications with alginate-based products in the field of environmental protection, medicine, food, and cosmetics in scientific articles showed that the greatest number was assigned to the environmental field (30,767) and medicine (24,279), whereas fewer publications were available in cosmetic (5692) and food industries (24,334). Data are provided from the Google Scholar database (including abstract, title, and keywords), accessed in May 2023. In this review, various materials based on alginate are described, showing detailed information on modified composites and their possible usage. Alginate's application in water remediation and its significant value are highlighted. In this study, existing knowledge is compared, and this paper concludes with its future prospects.
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Affiliation(s)
- Katarzyna Adamiak
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
- WellU sp.z.o.o., Wielkopolska 280, 81-531 Gdynia, Poland
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
- Faculty of Health Sciences, Calisia University, Nowy Świat 4, 62-800 Kalisz, Poland
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7
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Ketabat F, Maris T, Duan X, Yazdanpanah Z, Kelly ME, Badea I, Chen X. Optimization of 3D printing and in vitro characterization of alginate/gelatin lattice and angular scaffolds for potential cardiac tissue engineering. Front Bioeng Biotechnol 2023; 11:1161804. [PMID: 37304145 PMCID: PMC10248470 DOI: 10.3389/fbioe.2023.1161804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Background: Engineering cardiac tissue that mimics the hierarchical structure of cardiac tissue remains challenging, raising the need for developing novel methods capable of creating structures with high complexity. Three-dimensional (3D)-printing techniques are among promising methods for engineering complex tissue constructs with high precision. By means of 3D printing, this study aims to develop cardiac constructs with a novel angular structure mimicking cardiac architecture from alginate (Alg) and gelatin (Gel) composite. The 3D-printing conditions were optimized and the structures were characterized in vitro, with human umbilical vein endothelial cells (HUVECs) and cardiomyocytes (H9c2 cells), for potential cardiac tissue engineering. Methods: We synthesized the composites of Alg and Gel with varying concentrations and examined their cytotoxicity with both H9c2 cells and HUVECs, as well as their printability for creating 3D structures of varying fibre orientations (angular design). The 3D-printed structures were characterized in terms of morphology by both scanning electron microscopy (SEM) and synchrotron radiation propagation-based imaging computed tomography (SR-PBI-CT), and elastic modulus, swelling percentage, and mass loss percentage as well. The cell viability studies were conducted via measuring the metabolic activity of the live cells with MTT assay and visualizing the cells with live/dead assay kit. Results: Among the examined composite groups of Alg and Gel, two combinations with ratios of 2 to 1 and 3 to 1 (termed as Alg2Gel1 and Alg3Gel1) showed the highest cell survival; they accordingly were used to fabricate two different structures: a novel angular and a conventional lattice structure. Scaffolds made of Alg3Gel1 showed higher elastic modulus, lower swelling percentage, less mass loss, and higher cell survival compared to that of Alg2Gel1. Although the viability of H9c2 cells and HUVECs on all scaffolds composed of Alg3Gel1 was above 99%, the group of the constructs with the angular design maintained significantly more viable cells compared to other investigated groups. Conclusion: The group of angular 3D-ptinted constructs has illustrated promising properties for cardiac tissue engineering by providing high cell viability for both endothelial and cardiac cells, high mechanical strength as well as appropriate swelling, and degradation properties during 21 days of incubation. Statement of Significance: 3D-printing is an emerging method to create complex constructs with high precision in a large scale. In this study, we have demonstrated that 3D-printing can be used to create compatible constructs from the composite of Alg and Gel with endothelial cells and cardiac cells. Also, we have demonstrated that these constructs are able to enhance the viability of cardiac and endothelial cells via creating a 3D structure mimicking the alignment and orientation of the fibers in the native heart.
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Affiliation(s)
- Farinaz Ketabat
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Titouan Maris
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Institut Catholique des arts et métiers (ICAM)- Site de Toulouse, Toulouse, France
| | - Xiaoman Duan
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Zahra Yazdanpanah
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Michael E. Kelly
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ildiko Badea
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
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Matsumoto Y, Enomoto Y, Kabe T, Iwata T. Static and in situ small-angle X-ray scattering analyses of the effect of molecular structure on the tensile properties of cross-linked curdlan hydrogels and stretched, dried gel-films. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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9
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Akimoto T, Yasuda K. Content Size-Dependent Alginate Microcapsule Formation Using Centrifugation to Eliminate Empty Microcapsules for On-Chip Imaging Cell Sorter Application. MICROMACHINES 2022; 14:72. [PMID: 36677133 PMCID: PMC9867324 DOI: 10.3390/mi14010072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Alginate microcapsules are one of the attractive non-invasive platforms for handling individual cells and clusters, maintaining their isolation for further applications such as imaging cell sorter and single capsule qPCR. However, the conventional cell encapsulation techniques provide huge numbers of unnecessary empty homogeneous alginate microcapsules, which spend an excessive majority of the machine time on observations and analysis. Here, we developed a simple alginate cell encapsulation method to form content size-dependent alginate microcapsules to eliminate empty microcapsules using microcapillary centrifugation and filtration. Using this method, the formed calcium alginate microcapsules containing the HeLa cells were larger than 20m, and the other empty microcapsules were less than 3m under 4000 rpm centrifugation condition. We collected cell-containing alginate microcapsules by eliminating empty microcapsules from the microcapsule mixture with simple one-step filtration of a 20 m cell strainer. The electrical surface charge density and optical permeability of those cell-encapsulated alginate microcapsules were also evaluated. We found that the surface charge density of cell-encapsulated alginate microbeads is more than double that of cells, indicating that less voltage is required for electrical cell handling with thin alginate gel encapsulation of samples. The permeability of the alginate microcapsule was not improved by changing the reflective index of the medium buffer, such as adding alginate ester. However, the minimized thickness of the alginate gel envelope surrounding cells in the microcapsules did not degrade the detailed shapes of encapsulated cells. Those results confirmed the advantage of alginate encapsulation of cells with the centrifugation method as one of the desirable tools for imaging cell sorting applications.
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Affiliation(s)
- Toshinosuke Akimoto
- Department of Pure and Applied Physics, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Kenji Yasuda
- Department of Pure and Applied Physics, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
- Department of Physics, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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10
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Insights on Some Polysaccharide Gel Type Materials and Their Structural Peculiarities. Gels 2022; 8:gels8120771. [PMID: 36547295 PMCID: PMC9778405 DOI: 10.3390/gels8120771] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Global resources have to be used in responsible ways to ensure the world's future need for advanced materials. Ecologically friendly functional materials based on biopolymers can be successfully obtained from renewable resources, and the most prominent example is cellulose, the well-known most abundant polysaccharide which is usually isolated from highly available biomass (wood and wooden waste, annual plants, cotton, etc.). Many other polysaccharides originating from various natural resources (plants, insects, algae, bacteria) proved to be valuable and versatile starting biopolymers for a wide array of materials with tunable properties, able to respond to different societal demands. Polysaccharides properties vary depending on various factors (origin, harvesting, storage and transportation, strategy of further modification), but they can be processed into materials with high added value, as in the case of gels. Modern approaches have been employed to prepare (e.g., the use of ionic liquids as "green solvents") and characterize (NMR and FTIR spectroscopy, X ray diffraction spectrometry, DSC, electronic and atomic force microscopy, optical rotation, circular dichroism, rheological investigations, computer modelling and optimization) polysaccharide gels. In the present paper, some of the most widely used polysaccharide gels will be briefly reviewed with emphasis on their structural peculiarities under various conditions.
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11
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Alginate as a Promising Biopolymer in Drug Delivery and Wound Healing: A Review of the State-of-the-Art. Int J Mol Sci 2022; 23:ijms23169035. [PMID: 36012297 PMCID: PMC9409034 DOI: 10.3390/ijms23169035] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 12/20/2022] Open
Abstract
Biopolymeric nanoparticulate systems hold favorable carrier properties for active delivery. The enhancement in the research interest in alginate formulations in biomedical and pharmaceutical research, owing to its biodegradable, biocompatible, and bioadhesive characteristics, reiterates its future use as an efficient drug delivery matrix. Alginates, obtained from natural sources, are the colloidal polysaccharide group, which are water-soluble, non-toxic, and non-irritant. These are linear copolymeric blocks of α-(1→4)-linked l-guluronic acid (G) and β-(1→4)-linked d-mannuronic acid (M) residues. Owing to the monosaccharide sequencing and the enzymatically governed reactions, alginates are well-known as an essential bio-polymer group for multifarious biomedical implementations. Additionally, alginate’s bio-adhesive property makes it significant in the pharmaceutical industry. Alginate has shown immense potential in wound healing and drug delivery applications to date because its gel-forming ability maintains the structural resemblance to the extracellular matrices in tissues and can be altered to perform numerous crucial functions. The initial section of this review will deliver a perception of the extraction source and alginate’s remarkable properties. Furthermore, we have aspired to discuss the current literature on alginate utilization as a biopolymeric carrier for drug delivery through numerous administration routes. Finally, the latest investigations on alginate composite utilization in wound healing are addressed.
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12
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Alginate based hydrogel inks for 3D bioprinting of engineered orthopedic tissues. Carbohydr Polym 2022; 296:119964. [DOI: 10.1016/j.carbpol.2022.119964] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/17/2022] [Accepted: 08/04/2022] [Indexed: 12/27/2022]
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Khoshnood N, Shahrezaee MH, Shahrezaee M, Zamanian A. Three‐dimensional
bioprinting of tragacanth/hydroxyapaptite modified alginate bioinks for bone tissue engineering with tunable printability and bioactivity. J Appl Polym Sci 2022. [DOI: 10.1002/app.52833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Negin Khoshnood
- Biomaterials Research Group Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC) Tehran Iran
| | | | - Mostafa Shahrezaee
- Department of Orthopedic Surgery, School of Medicine AJA University of Medical Science Tehran Iran
| | - Ali Zamanian
- Biomaterials Research Group Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC) Tehran Iran
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14
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Yang S, Zhang S, Qu Z, Xiu T, Hu Y, Chen C, Lv N. Reducing cherry rain-cracking: Development and characterization of cold-water fish gelatin films reinforced by dual rod-spherical nanoscale structures formed under magnetic fields. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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15
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Clapacs Z, ONeill CL, Shrimali P, Lokhande G, Files M, Kim DD, Gaharwar AK, Rudra JS. Coiled Coil Crosslinked Alginate Hydrogels Dampen Macrophage-Driven Inflammation. Biomacromolecules 2022; 23:1183-1194. [PMID: 35170303 DOI: 10.1021/acs.biomac.1c01462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alginate hydrogels are widely used for tissue engineering and regenerative medicine due to their excellent biocompatibility. A facile and commonly used strategy to crosslink alginate is the addition of Ca2+ that leads to hydrogelation. However, extracellular Ca2+ is a secondary messenger in activating inflammasome pathways following physical injury or pathogenic insult, which carries the risk of persistent inflammation and scaffold rejection. Here, we present graft copolymers of charge complementary heterodimeric coiled coil (CC) peptides and alginate that undergo supramolecular self-assembly to form Ca2+ free alginate hydrogels. The formation of heterodimeric CCs was confirmed using circular dichroism spectroscopy, and scanning electron microscopy revealed a significant difference in crosslink density and homogeneity between Ca2+ and CC crosslinked gels. The resulting hydrogels were self-supporting and display shear-thinning and shear-recovery properties. In response to lipopolysaccharide (LPS) stimulation, peritoneal macrophages and bone marrow-derived dendritic cells cultured in the CC crosslinked gels exhibited a 10-fold reduction in secretion of the proinflammatory cytokine IL-1β compared to Ca2+ crosslinked gels. A similar response was also observed in vivo upon peritoneal delivery of Ca2+ or CC crosslinked gels. Analysis of peritoneal lavage showed that macrophages in mice injected with Ca2+ crosslinked gels display a more inflammatory phenotype compared to macrophages from mice injected with CC crosslinked gels. These results suggest that CC peptides by virtue of their tunable sequence-structure-function relationship and mild gelation conditions are promising alternative crosslinkers for alginate and other biopolymer scaffolds used in tissue engineering.
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Affiliation(s)
- Zain Clapacs
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63139, United States
| | - Conor L ONeill
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63139, United States
| | - Paresh Shrimali
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63139, United States
| | - Giriraj Lokhande
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77840, United States
| | - Megan Files
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Darren D Kim
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63139, United States
| | - Akhilesh K Gaharwar
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77840, United States
| | - Jai S Rudra
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63139, United States
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16
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Cao D, Martinez JG, Hara ES, Jager EWH. Biohybrid Variable-Stiffness Soft Actuators that Self-Create Bone. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107345. [PMID: 34877728 DOI: 10.1002/adma.202107345] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Inspired by the dynamic process of initial bone development, in which a soft tissue turns into a solid load-bearing structure, the fabrication, optimization, and characterization of bioinduced variable-stiffness actuators that can morph in various shapes and change their properties from soft to rigid are hereby presented. Bilayer devices are prepared by combining the electromechanically active properties of polypyrrole with the compliant behavior of alginate gels that are uniquely functionalized with cell-derived plasma membrane nanofragments (PMNFs), previously shown to mineralize within 2 days, which promotes the mineralization in the gel layer to achieve the soft to stiff change by growing their own bone. The mineralized actuator shows an evident frozen state compared to the movement before mineralization. Next, patterned devices show programmed directional and fixated morphing. These variable-stiffness devices can wrap around and, after the PMNF-induced mineralization in and on the gel layer, adhere and integrate onto bone tissue. The developed biohybrid variable-stiffness actuators can be used in soft (micro-)robotics and as potential tools for bone repair or bone tissue engineering.
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Affiliation(s)
- Danfeng Cao
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
| | - Jose G Martinez
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
| | - Emilio Satoshi Hara
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8558, Japan
| | - Edwin W H Jager
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
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17
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Maity C, Das N. Alginate-Based Smart Materials and Their Application: Recent Advances and Perspectives. Top Curr Chem (Cham) 2021; 380:3. [PMID: 34812965 DOI: 10.1007/s41061-021-00360-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/03/2021] [Indexed: 12/14/2022]
Abstract
Nature produces materials using available molecular building blocks following a bottom-up approach. These materials are formed with great precision and flexibility in a controlled manner. This approach offers the inspiration for manufacturing new artificial materials and devices. Synthetic artificial materials can find many important applications ranging from personalized therapeutics to solutions for environmental problems. Among these materials, responsive synthetic materials are capable of changing their structure and/or properties in response to external stimuli, and hence are termed "smart" materials. Herein, this review focuses on alginate-based smart materials and their stimuli-responsive preparation, fragmentation, and applications in diverse fields from drug delivery and tissue engineering to water purification and environmental remediation. In the first part of this report, we review stimuli-induced preparation of alginate-based materials. Stimuli-triggered decomposition of alginate materials in a controlled fashion is documented in the second part, followed by the application of smart alginate materials in diverse fields. Because of their biocompatibility, easy accessibility, and simple techniques of material formation, alginates can provide solutions for several present and future problems of humankind. However, new research is needed for novel alginate-based materials with new functionalities and well-defined properties for targeted applications.
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Affiliation(s)
- Chandan Maity
- Department of Chemistry, School of Advanced Science (SAS), Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India.
| | - Nikita Das
- Department of Chemistry, School of Advanced Science (SAS), Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India
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18
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Matsumoto Y, Enomoto Y, Kimura S, Iwata T. Highly stretchable curdlan hydrogels and mechanically strong stretched-dried-gel-films obtained by strain-induced crystallization. Carbohydr Polym 2021; 269:118312. [PMID: 34294326 DOI: 10.1016/j.carbpol.2021.118312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 11/27/2022]
Abstract
Highly-stretchable self-standing curdlan (1,3-β-d-glucan) hydrogels were prepared via chemical cross-linking using various cross-linkers, including ethylene glycol diglycidyl ether, 1,4-butandiol diglycidyl ether, and 1,6-hexanediol diglycidyl ether. Tensile testing of the curdlan hydrogels revealed that the hydrogels had good elongation properties with 600%-900% elongation strain from their original length regardless of the cross-linker length. Stretched-dried-gel films were prepared by stretching of the hydrogels and subsequent drying. The tensile strength and Young's modulus of the stretched-dried-gel-films were 117-148 MPa and 1.6 GPa, respectively, and these values were markedly improved compared with the non-stretched films. X-ray measurements revealed that the stretched dried-gel films had oriented crystalline domains with an 80% of degree of orientation. These results indicate that the curdlan molecular chains were oriented and crystallized during the process of stretching and drying of the hydrogels. As a result, the stretched-dried-films showed a high tensile strength owing to strain-induced crystallization.
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Affiliation(s)
- Yusuke Matsumoto
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yukiko Enomoto
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Satoshi Kimura
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tadahisa Iwata
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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19
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Kawakita R, Leveau JHJ, Jeoh T. Comparing Fluidized Bed Spray-Coating and Spray-Drying Encapsulation of Non-Spore-Forming Gram-Negative Bacteria. Ind Biotechnol (New Rochelle N Y) 2021. [DOI: 10.1089/ind.2021.0019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Ryan Kawakita
- Department of Biological and Agricultural Engineering, University of California, Davis, CA, USA
| | | | - Tina Jeoh
- Department of Biological and Agricultural Engineering, University of California, Davis, CA, USA
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20
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Diep E, Schiffman JD. Encapsulating bacteria in alginate-based electrospun nanofibers. Biomater Sci 2021; 9:4364-4373. [PMID: 34128000 DOI: 10.1039/d0bm02205e] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Encapsulation technologies are imperative for the safe delivery of live bacteria into the gut where they regulate bodily functions and human health. In this study, we develop alginate-based nanofibers that could potentially serve as a biocompatible, edible probiotic delivery system. By systematically exploring the ratio of three components, the biopolymer alginate (SA), the carrier polymer poly(ethylene oxide) (PEO), and the FDA approved surfactant polysorbate 80 (PS80), the surface tension and conductivity of the precursor solutions were optimized to electrospin bead-free fibers with an average diameter of 167 ± 23 nm. Next, the optimized precursor solution (2.8/1.2/3 wt% of SA/PEO/PS80) was loaded with Escherichia coli (E. coli, 108 CFU mL-1), which served as our model bacterium. We determined that the bacteria in the precursor solution remained viable after passing through a typical electric field (∼1 kV cm-1) employed during electrospinning. This is because the microbes are pulled into a sink-like flow, which encapsulates them into the polymer nanofibers. Upon electrospinning the E. coli-loaded solutions, beads that were much smaller than the size of an E. coli were initially observed. To compensate for the addition of bacteria, the SA/PEO/PS80 weight ratio was reoptimized to be 2.5/1.5/3. Smooth fibers with bulges around the live microbes were formed, as confirmed using fluorescence and scanning electron microscopy. By dissolving and plating the nanofibers, we found that 2.74 × 105 CFU g-1 of live E. coli cells were contained within the alginate-based fibers. This work demonstrates the use of electrospinning to encapsulate live bacteria in alginate-based nanofibers for the potential delivery of probiotics to the gut.
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Affiliation(s)
- Emily Diep
- Department of Chemical Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003-9303, USA.
| | - Jessica D Schiffman
- Department of Chemical Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003-9303, USA.
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21
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Mahkam M, Bazmi Zeynabad F, Alizadeh E, Rahimi M, Rahimi F, Salehi R. Novel Methotrexate-Ciprofloxacin Loaded Alginate-Clay Based Nanocomposite as Anticancer and Antibacterial Co-Drug Delivery System. Adv Pharm Bull 2021; 11:477-489. [PMID: 34513622 PMCID: PMC8421626 DOI: 10.34172/apb.2021.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 05/22/2020] [Accepted: 06/30/2020] [Indexed: 01/03/2023] Open
Abstract
Purpose: In last decades, by increasing multi-drug resistant microbial pathogens an urgent demand was felt in the development of novel antimicrobial agents. Methods: Promising nanocomposites composed of clay/alginate/imidazolium-based ionic liquid, have been developed via intercalation of calcium alginate and ionic liquid by ion exchange method. These tailored nanocomposites were used as nanocarriers to simultaneously deliver methotrexate (MTX), and ciprofloxacin (CIP), as anticancer and antibacterial agents, respectively to MCF-7 breast cancer cells. Nanocomposites were fully characterized by scanning electron microscopy studies (SEM), X-ray diffraction (XRD), Fourier transforms infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA) methods. The in vitro antimicrobial potential of the mentioned nanocomposites in free and dual-drug loaded form was investigated on Pseudomonas aeruginosa and Escherichia coli bacteria. The antitumor activity of nano-formulations was evaluated by both MTT assay and cell cycle arrest. Results: The dual drug-loaded nanocomposites with exceptionally high loading efficiency (MTX: 99 ±0.4% and CIP: 98 ±1.2%) and mean particle size of 70 nm were obtained with obvious pH-responsive MTX and CIP release (both drugs release rate was increased at pH 5.8 compared to 7.4). The antibacterial activity of CIP-loaded nanocomposites was significantly higher in comparison with free CIP (P <0.001). The antitumor activity results revealed that MTX cytotoxicity on MCF-7 cells was significantly higher in nano-formulations compared to free MTX (P <0.001). Both MTX-loaded nanocomposites caused S-phase arrest in MCF-7 cells compared to non-treated cells (P ˂ 0.001). Conclusion: Newly developed smart nanocomposites are potentially effective pH-sustainable delivery systems for enhanced tumor therapy.
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Affiliation(s)
- Mehrdad Mahkam
- Chemistry Department, Azarbaijan Shahid Madani University, Tabriz, Iran
| | | | - Effat Alizadeh
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Rahimi
- Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Fariborz Rahimi
- Department of Electrical Engineering, University of Bonab, Bonab, Iran
| | - Roya Salehi
- Drug Applied Research Center and Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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22
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Hu Y, Hu S, Zhang S, Dong S, Hu J, Kang L, Yang X. A double-layer hydrogel based on alginate-carboxymethyl cellulose and synthetic polymer as sustained drug delivery system. Sci Rep 2021; 11:9142. [PMID: 33911150 PMCID: PMC8080826 DOI: 10.1038/s41598-021-88503-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 04/06/2021] [Indexed: 12/21/2022] Open
Abstract
A new double-layer, pH-sensitive, composite hydrogel sustained-release system based on polysaccharides and synthetic polymers with combined functions of different inner/outer hydrogels was prepared. The polysaccharides inner core based on sodium alginate (SA) and carboxymethyl cellulose (CMC), was formed by physical crosslinking with pH-sensitive property. The synthetic polymer out-layer with enhanced stability was introduced by chemical crosslinking to eliminate the expansion of inner core and the diffusion of inner content. The physicochemical structure of the double-layer hydrogels was characterized. The drug-release results demonstrated that the sustained-release effect of the hydrogels for different model drugs could be regulated by changing the composition or thickness of the hydrogel layer. The significant sustained-release effect for BSA and indomethacin indicated that the bilayer hydrogel can be developed into a novel sustained delivery system for bioactive substance or drugs with potential applications in drugs and functional foods.
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Affiliation(s)
- Yan Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China. .,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China.
| | - Sheng Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Shangwen Zhang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Siyi Dong
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Jie Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Li Kang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China. .,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China.
| | - Xinzhou Yang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
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23
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Bacterial Biopolymer: Its Role in Pathogenesis to Effective Biomaterials. Polymers (Basel) 2021; 13:polym13081242. [PMID: 33921239 PMCID: PMC8069653 DOI: 10.3390/polym13081242] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022] Open
Abstract
Bacteria are considered as the major cell factories, which can effectively convert nitrogen and carbon sources to a wide variety of extracellular and intracellular biopolymers like polyamides, polysaccharides, polyphosphates, polyesters, proteinaceous compounds, and extracellular DNA. Bacterial biopolymers find applications in pathogenicity, and their diverse materialistic and chemical properties make them suitable to be used in medicinal industries. When these biopolymer compounds are obtained from pathogenic bacteria, they serve as important virulence factors, but when they are produced by non-pathogenic bacteria, they act as food components or biomaterials. There have been interdisciplinary studies going on to focus on the molecular mechanism of synthesis of bacterial biopolymers and identification of new targets for antimicrobial drugs, utilizing synthetic biology for designing and production of innovative biomaterials. This review sheds light on the mechanism of synthesis of bacterial biopolymers and its necessary modifications to be used as cell based micro-factories for the production of tailor-made biomaterials for high-end applications and their role in pathogenesis.
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24
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Khoshnood N, Zamanian A, Abbasi M. The potential impact of polyethylenimine on biological behavior of 3D-printed alginate scaffolds. Int J Biol Macromol 2021; 178:19-28. [PMID: 33636258 DOI: 10.1016/j.ijbiomac.2021.02.152] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/17/2022]
Abstract
Three-dimensional (3D) printing using biocompatible materials is a novel technology having a great potential for fabricating precise 3D scaffolds for tissue engineering. Alginate hydrogel undergoes unstable swelling and degradation properties as well as suffers from poor cell adhesion due to the lack of cell binding domains. These limit its applications in tissue engineering. In this study, 3D-printed alginate scaffolds were coated by branch polyethylenimine (PEI) to overcome the limitation of alginate because the branch PEI is a cationic polymer with a large number of active N-H groups. The results indicated that surface modification of 3D-printed alginate scaffolds using an appropriate concentration of PEI potentially promoted the fibroblast cells functions in 3D-printed alginate scaffolds, increased cell adhesion, cell proliferation and cell spreading through providing a large amount of N-H groups and increasing hydrophilicity of the surface. The degradation rate of alginate was degraded by interaction between N-H groups in PEI and -COO- groups in alginate structure and followed by the formation strong barrier layer in the interface of alginate and PEI. Therefore, ALG-PEI scaffolds can be a good candidate for tissue engineering and wound dressing applications.
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Affiliation(s)
- Negin Khoshnood
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC), Tehran, Iran
| | - Ali Zamanian
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC), Tehran, Iran.
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25
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Matsumoto Y, Enomoto Y, Kimura S, Iwata T. Highly deformable and recoverable cross-linked hydrogels of 1,3-α-d and 1,3-β-d-glucans. Carbohydr Polym 2021; 251:116794. [PMID: 33142549 DOI: 10.1016/j.carbpol.2020.116794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 07/16/2020] [Accepted: 07/16/2020] [Indexed: 10/23/2022]
Abstract
We prepared self-standing chemically cross-linked hydrogels from 1,3-α-d-glucan (Mw = 2.0 × 105) and 1,3-β-d-glucans (low-molecular-weight (LMW): Mw = 2.0 × 105, high-molecular-weight (HMW): Mw = 1.0 × 106), using ethylene glycol diglycidyl ether (EGDGE) as a cross-linker. Uniaxial compressive tests using cylindrical hydrogels of the cross-linked glucans were conducted. Both the 1,3-α-d-glucan and LMW-1,3-β-d-glucan hydrogels were highly deformable and shape-deformable; they could be compressed without breaking to 60% and 80% strain, respectively, and recovered 80% of their original height. The Young's moduli of the 1,3-α-d-glucan and LMW-1,3-β-d-glucan hydrogels indicated that the 1,3-α-d-glucan hydrogels were harder than the 1,3-β-d-glucan hydrogels. The HMW-1,3-β-d-glucan hydrogels were more deformable and had better shape recovery than the LMW-1,3-β-d-glucans; they could be compressed by up to 90% maximum strain, and recovered almost 100% of their original height from 80% strain. Cyclic compression tests were performed to study their network structure.
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Affiliation(s)
- Yusuke Matsumoto
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yukiko Enomoto
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Satoshi Kimura
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; Technology Advancement Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657,Japan; Department of Plant & Environmental New Resources,College of Life Sciences, Kyung Hee University, Yongin-si,Gyeonggi-do 446-701, Republic of Korea
| | - Tadahisa Iwata
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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26
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Zhang Y, Pham HM, Munguia-Lopez JG, Kinsella JM, Tran SD. The Optimization of a Novel Hydrogel-Egg White-Alginate for 2.5D Tissue Engineering of Salivary Spheroid-Like Structure. Molecules 2020; 25:E5751. [PMID: 33291221 PMCID: PMC7730374 DOI: 10.3390/molecules25235751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 11/24/2022] Open
Abstract
Hydrogels have been used for a variety of biomedical applications; in tissue engineering, they are commonly used as scaffolds to cultivate cells in a three-dimensional (3D) environment allowing the formation of organoids or cellular spheroids. Egg white-alginate (EWA) is a novel hydrogel which combines the advantages of both egg white and alginate; the egg white material provides extracellular matrix (ECM)-like proteins that can mimic the ECM microenvironment, while alginate can be tuned mechanically through its ionic crosslinking property to modify the scaffold's porosity, strength, and stiffness. In this study, a frozen calcium chloride (CaCl2) disk technique to homogenously crosslink alginate and egg white hydrogel is presented for 2.5D culture of human salivary cells. Different EWA formulations were prepared and biologically evaluated as a spheroid-like structure platform. Although all five EWA hydrogels showed biocompatibility, the EWA with 1.5% alginate presented the highest cell viability, while EWA with 3% alginate promoted the formation of larger size salivary spheroid-like structures. Our EWA hydrogel has the potential to be an alternative 3D culture scaffold that can be used for studies on drug-screening, cell migration, or as an in vitro disease model. In addition, EWA can be used as a potential source for cell transplantation (i.e., using this platform as an ex vivo environment for cell expansion). The low cost of producing EWA is an added advantage.
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Affiliation(s)
- Yuli Zhang
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
| | - Hieu M. Pham
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
| | - Jose G. Munguia-Lopez
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada;
| | - Joseph M. Kinsella
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada;
| | - Simon D. Tran
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
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27
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Effect of CuS reinforcement on the mechanical, water vapor barrier, UV-light barrier, and antibacterial properties of alginate-based composite films. Int J Biol Macromol 2020; 164:37-44. [DOI: 10.1016/j.ijbiomac.2020.07.092] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/29/2020] [Accepted: 07/09/2020] [Indexed: 11/18/2022]
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28
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Vakili N, Asefnejad A. Titanium coating: introducing an antibacterial and bioactive chitosan-alginate film on titanium by spin coating. ACTA ACUST UNITED AC 2020; 65:621-630. [PMID: 32333647 DOI: 10.1515/bmt-2018-0108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/06/2018] [Indexed: 01/13/2023]
Abstract
Coating of titanium (Ti) implants with biocompatible polymers were performed to improve bone healing. In this study, pure Ti implants were coated via chitosan and alginate by spin coating method at 1000, 4000, and 8000 rpm. The coating layer was cross-linked by calcium chloride. Their chemical structures were analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) evaluations. The morphology of the created coating was observed by scanning electron microscopy (SEM), and the best uniformity was observed in the prepared coating at 8000 rpm (6093× g) spinal speed. The adhesion strength of the coating layer on the substrate was evaluated by the adhesion pull-off test. Also, the best adhesion strength was achieved at an 8000 rpm (6093× g) coating rate. Bioactivity of the chitosan-alginate coating on Ti sheets was evaluated by soaking the samples in a simulated body fluid (SBF) solution. The apatite formation on prepared Ti sheets was investigated by SEM, XRD, and energy dispersive X-ray spectroscopy (EDS). A higher mineralization appeared on coated samples compared with pure Ti. The antibacterial behavior of the implants was analyzed by bacterial counting against Escherichia coli. The presence of chitosan and alginate on the Ti sheets resulted in a better antibacterial effect. In-vitro experiments, with L929 fibroblast cells, confirmed the biocompatibility of the implants. Coating the Ti implants with chitosan and alginate improved biomineralization and biological behavior of the implant especially at the spinal speed of 8000 rpm (6093× g). These implants can support osteoblast cell adhesion and facilitate bone regeneration.
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Affiliation(s)
- Nasim Vakili
- Department of Biomedical Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran 4515-775, Iran
| | - Azadeh Asefnejad
- Department of Biomedical Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran 4515-775, Iran
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GhavamiNejad A, Ashammakhi N, Wu XY, Khademhosseini A. Crosslinking Strategies for 3D Bioprinting of Polymeric Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002931. [PMID: 32734720 PMCID: PMC7754762 DOI: 10.1002/smll.202002931] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Indexed: 05/15/2023]
Abstract
Three-dimensional (3D) bioprinting has recently advanced as an important tool to produce viable constructs that can be used for regenerative purposes or as tissue models. To develop biomimetic and sustainable 3D constructs, several important processing aspects need to be considered, among which crosslinking is most important for achieving desirable biomechanical stability of printed structures, which is reflected in subsequent behavior and use of these constructs. In this work, crosslinking methods used in 3D bioprinting studies are reviewed, parameters that affect bioink chemistry are discussed, and the potential toward improving crosslinking outcomes and construct performance is highlighted. Furthermore, current challenges and future prospects are discussed. Due to the direct connection between crosslinking methods and properties of 3D bioprinted structures, this Review can provide a basis for developing necessary modifications to the design and manufacturing process of advanced tissue-like constructs in future.
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Affiliation(s)
- Amin GhavamiNejad
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Radiological Sciences, University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Xiao Yu Wu
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, California, USA
- Department of Radiological Sciences, University of California - Los Angeles, Los Angeles, California, USA
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
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Preparation of Succinoglycan Hydrogel Coordinated With Fe 3+ Ions for Controlled Drug Delivery. Polymers (Basel) 2020; 12:polym12040977. [PMID: 32331339 PMCID: PMC7240483 DOI: 10.3390/polym12040977] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 01/06/2023] Open
Abstract
Hydrogel materials with a gel-sol conversion due to external environmental changes have potential applications in a wide range of fields, including controlled drug delivery. Succinoglycans are anionic extracellular polysaccharides produced by various bacteria, including Sinorhizobium species, which have diverse applications. In this study, the rheological analysis confirmed that succinoglycan produced by Sinorhizobium meliloti Rm 1021 binds weakly to various metal ions, including Fe2+ cations, to maintain a sol form, and binds strongly to Fe3+ cations to maintain a gel form. The Fe3+-coordinated succinoglycan (Fe3+-SG) hydrogel was analyzed by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, circular dichroism (CD), and field-emission scanning electron microscopy (FE-SEM). Our results revealed that the Fe3+ cations that coordinated with succinoglycan were converted to Fe2+ by a reducing agent and visible light, promoting a gel-sol conversion. The Fe3+-SG hydrogel was then successfully used for controlled drug delivery based on gel-sol conversion in the presence of reducing agents and visible light. As succinoglycan is nontoxic, it is a potential material for controlled drug delivery.
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31
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Zhou N, Ma X, Bernaerts KV, Ren P, Hu W, Zhang T. Expansion of Ovarian Cancer Stem-like Cells in Poly(ethylene glycol)-Cross-Linked Poly(methyl vinyl ether-alt-maleic acid) and Alginate Double-Network Hydrogels. ACS Biomater Sci Eng 2020; 6:3310-3326. [DOI: 10.1021/acsbiomaterials.9b01967] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Naizhen Zhou
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xiaoe Ma
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Katrien V. Bernaerts
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Pengfei Ren
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Wanjun Hu
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Tianzhu Zhang
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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Abstract
Bacteria are prime cell factories that can efficiently convert carbon and nitrogen sources into a large diversity of intracellular and extracellular biopolymers, such as polysaccharides, polyamides, polyesters, polyphosphates, extracellular DNA and proteinaceous components. Bacterial polymers have important roles in pathogenicity, and their varied chemical and material properties make them suitable for medical and industrial applications. The same biopolymers when produced by pathogenic bacteria function as major virulence factors, whereas when they are produced by non-pathogenic bacteria, they become food ingredients or biomaterials. Interdisciplinary research has shed light on the molecular mechanisms of bacterial polymer synthesis, identified new targets for antibacterial drugs and informed synthetic biology approaches to design and manufacture innovative materials. This Review summarizes the role of bacterial polymers in pathogenesis, their synthesis and their material properties as well as approaches to design cell factories for production of tailor-made bio-based materials suitable for high-value applications.
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Affiliation(s)
- M Fata Moradali
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Bernd H A Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD, Australia.
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Lord J, Britton H, Spain SG, Lewis AL. Advancements in the development on new liquid embolic agents for use in therapeutic embolisation. J Mater Chem B 2020; 8:8207-8218. [DOI: 10.1039/d0tb01576h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review covers the current state-of-the-art in the development of liquid embolics for therapeutic embolisation.
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Affiliation(s)
- Jasmine Lord
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - Hugh Britton
- Biocompatibles UK Ltd (a BTG International group company)
- Lakeview
- Camberley
- UK
| | | | - Andrew L. Lewis
- Biocompatibles UK Ltd (a BTG International group company)
- Lakeview
- Camberley
- UK
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Fan L, Duan M, Xie Z, Pan K, Wang X, Sun X, Wang Q, Rao W, Liu J. Injectable and Radiopaque Liquid Metal/Calcium Alginate Hydrogels for Endovascular Embolization and Tumor Embolotherapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1903421. [PMID: 31762193 DOI: 10.1002/smll.201903421] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 10/20/2019] [Indexed: 06/10/2023]
Abstract
Improved endovascular embolization can contribute to assistant treatment for patients. However, many traditional embolic materials, such as metal microcoils or liquid embolic agents, are associated with limitations of coil migration or recanalization. Herein, as the first trial, an injectable and radiopaque liquid metal/calcium alginate (LM/CA) hydrogel is introduced and fabricated as a candidate for endovascular embolization and tumor embolotherapy through developing LM droplets as radiopaque units into biocompatible calcium alginate cross-linked network. The adoption of LM droplets makes hydrogels radiopaque under X-ray and CT scan, which significantly facilitates the tracking of material location during surgical vascular operation. In addition, in vitro and in vivo experiments prove that such smart hydrogel could convert from liquid to solid rapidly via cross-linking, showing pretty flexible and controllable functions. Benefiting from these properties, the hydrogel can be performed in blood vessels through injection via syringes and then served as an embolic material for endovascular embolization procedures. In vivo experiments demonstrate that such hydrogels can occlude arteries and block blood flow until they ultimately lead to ischemic necrosis of tumors and partial healthy tissues. Overall, the present LM/CA hydrogels are promising to be developed as new generation embolic materials for future tumor embolotherapy.
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Affiliation(s)
- Linlin Fan
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Minghui Duan
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Zhongchen Xie
- Laboratory Animal Research Center, Tsinghua University, Beijing, 100084, China
| | - Keqin Pan
- Tsinghua University Hospital, Beijing, 100084, China
| | - Xuelin Wang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Xuyang Sun
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qian Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wei Rao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jing Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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Gargava A, Ahn S, Bentley WE, Raghavan SR. Rapid Electroformation of Biopolymer Gels in Prescribed Shapes and Patterns: A Simpler Alternative to 3-D Printing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37103-37111. [PMID: 31566952 DOI: 10.1021/acsami.9b12575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We demonstrate the use of electric fields to rapidly form gels of the biopolymer alginate (Alg) in specific three-dimensional (3-D) shapes and patterns. In our approach, we start with a gel of the biopolymer agarose, which is thermoresponsive and hence can be molded into a specific shape. The agarose mold is then loaded with Ca2+ cations and placed in a beaker containing an Alg solution. The inner surface of the beaker is surrounded by aluminum foil (cathode), and a copper wire (anode) is stuck in the agarose mold. These are connected to a direct current (DC) power source, and when a potential of ∼10 V is applied, an Alg gel is formed in a shape that replicates the mold. Gelation occurs because the Ca2+ ions electrophoretically migrate away from the mold, whereupon they cross-link the Alg chains adjacent to the mold. At low Ca2+ (0.01 wt %), the Alg gel layer grows outward from the mold surface at a steady rate of about 0.8 mm/min, and the gel stops growing when the field is switched off. After a gel of desired thickness is formed, the agarose mold can be melted away to leave behind an Alg gel in a precise shape. Alg gels formed in this manner are transparent and robust. This process is particularly convenient to form Alg gels in the form of hollow tubes, including tubes with multiple concentric layers, each with a different payload. The technique is safe for encapsulation of biological species within a given Alg layer. We also create Alg gels in specific patterns by directing gel growth around selected regions. Overall, our technique enables lab-scale manufacturing of alginate gels in 3-D without the need for an expensive 3-D printer.
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36
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Wu X, Liu R, Lao TT. Therapeutic compression materials and wound dressings for chronic venous insufficiency: A comprehensive review. J Biomed Mater Res B Appl Biomater 2019; 108:892-909. [PMID: 31339655 DOI: 10.1002/jbm.b.34443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/06/2019] [Accepted: 06/28/2019] [Indexed: 01/15/2023]
Abstract
Chronic venous insufficiency (CVI) is a common disorder worldwide. Related pathophysiological mechanisms reportedly involve venous pooling and reduced venous return, leading to heaviness, aching, itchiness, tiredness, varicosities, pigmentation, and even lower limb ulceration. Approaches adopted to manage CVI at various stages of clinical-etiology-anatomy-pathophysiology include compression therapy, pharmacological treatment, ultrasound treatment, surgery, electrical or wireless microcurrent stimulation, and pulsed electromagnetic treatment. Among these, polymer-based therapeutic compression materials and wound dressings play increasingly key roles in treating all stages of CVI because of their unique physical, mechanical, chemical, and biological functions. However, the characteristics, working mechanisms, and effectiveness of these CVI treatment materials are not comprehensively understood. The present systematic review examines the structures, properties, types, and applications of various polymer-based compression materials and wound dressings used in prophylaxis and treatment of CVI. Existing problems, limitations, and future trends of CVI treatment materials are also discussed. This review could contribute to the design and application of new functional polymer materials and dressings to enhance the efficiency of CVI treatments, thereby facilitating patients' self-care ability and long-term health improvement.
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Affiliation(s)
- Xinbo Wu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Rong Liu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Terence T Lao
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China
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37
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Stealey S, Guo X, Ren L, Bryant E, Kaltchev M, Chen J, Kumpaty S, Hua X, Zhang W. Stability improvement and characterization of bioprinted pectin-based scaffold. J Appl Biomater Funct Mater 2019; 17:2280800018807108. [DOI: 10.1177/2280800018807108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Purpose: Bioprinting is an alternative method for constructing tissues/organs for transplantation. This study investigated the cross-linker influence and post-printing modification using oligochitosan and chitosan for stability improvement. Methods: Oligochitosan was tested as a novel cross-linker to replace Ca2+ for pectin-based bio-ink. Oligochitosan (2 kD) and different molecular weight of chitosan were used to modify the bioprinted scaffold. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were used to characterize the scaffolds. Results: Oligochitosan failed to serve as a viable cross-linker. Successful post-printing modification was confirmed by FTIR and SEM analyses. Conclusion: Regarding post-modification, chitosan-treated scaffolds showed enhanced stability compared to untreated scaffolds. In particular, scaffolds modified with 150 kD chitosan exhibited the highest stability.
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Affiliation(s)
- Samuel Stealey
- Physics and Chemistry Department, Milwaukee School of Engineering, Milwaukee, WI, USA
| | - Xiaoru Guo
- Mechanical Engineering Department, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Lixia Ren
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Elizabeth Bryant
- Computer Science and Engineering Department, LeTourneau University, Longview, TX, USA
| | - Matey Kaltchev
- Physics and Chemistry Department, Milwaukee School of Engineering, Milwaukee, WI, USA
| | - Junhong Chen
- Mechanical Engineering Department, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Subha Kumpaty
- Mechanical Engineering Department, Milwaukee School of Engineering, Milwaukee, WI, USA
| | - Xiaolin Hua
- Department of Obstetrics and Gynecology Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai China
| | - Wujie Zhang
- Physics and Chemistry Department, Milwaukee School of Engineering, Milwaukee, WI, USA
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38
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39
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A novel anti-calcification method for bioprosthetic heart valves using dopamine-modified alginate. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2450-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Shaari N, Kamarudin SK, Basri S, Shyuan LK, Masdar MS, Nordin D. Enhanced mechanical flexibility and performance of sodium alginate polymer electrolyte bio-membrane for application in direct methanol fuel cell. J Appl Polym Sci 2018. [DOI: 10.1002/app.46666] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- N. Shaari
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
| | - S. K. Kamarudin
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
| | - S. Basri
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
| | - L. K. Shyuan
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
| | - M. S. Masdar
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
| | - D. Nordin
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment; Universiti Kebangsaan Malaysia; Ukm Bangi Selangor 43600 Malaysia
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41
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Veres P, Sebők D, Dékány I, Gurikov P, Smirnova I, Fábián I, Kalmár J. A redox strategy to tailor the release properties of Fe(III)-alginate aerogels for oral drug delivery. Carbohydr Polym 2018. [DOI: 10.1016/j.carbpol.2018.01.098] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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42
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Gurikov P, Smirnova I. Non-Conventional Methods for Gelation of Alginate. Gels 2018; 4:E14. [PMID: 30674790 PMCID: PMC6318612 DOI: 10.3390/gels4010014] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/25/2018] [Accepted: 01/26/2018] [Indexed: 11/21/2022] Open
Abstract
This review presents and critically evaluates recent advances in non-conventional gelation method of native alginate. A special focus is given to the following three methods: cryotropic gelation, non-solvent induced phase separation and carbon dioxide induced gelation. A few other gelation approaches are also briefly reviewed. Results are discussed in the context of subsequent freeze and supercritical drying. The methods are selected so as to provide the readers with a range of novel tools and tactics of pore engineering for alginate and other anionic polysaccharides.
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Affiliation(s)
- Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
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43
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Li R, Cheng Z, Wen R, Zhao X, Yu X, Sun L, Zhang Y, Han Z, Yuan Y, Kang L. Novel SA@Ca2+/RCSPs core–shell structure nanofibers by electrospinning for wound dressings. RSC Adv 2018; 8:15558-15566. [PMID: 35539465 PMCID: PMC9080105 DOI: 10.1039/c8ra00784e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 04/15/2018] [Indexed: 01/09/2023] Open
Abstract
Therapeutic drugs remain of great significance for the absorption of wound blood, the closure of wounds and rapid wound healing. Hence, we propose a novel composite nanofiber membrane with the above characteristics as a wound healing material. We utilize the reaction of calcium ion and alginate gel, sodium alginate (SA) and Rana chensinensis skin peptides (RCSPs) extracted from discarded Rana chensinensis skin; these two natural substances were successfully used to prepare composite nanofibers by coaxial electrospinning. The composite nanofibers are named SA@Ca2+/RCSPs nanofibers. SA@Ca2+/RCSPs nanofibers exhibited that the nanofibers contact with the liquid is unmelted, instead become gel, when compared to nanofibers of does not contain calcium ions, and the absorption rate reached 179.87%. SA@Ca2+/RCSPs nanofibers conform to the quasi-first-order dynamics model and the Ritger–Peppas release model. In vivo wound healing experiments showed that the wound-healing rate of SA@Ca2+/RCSPs nanofiber-treated wounds was 46.65% and 97.46% on days 5 and 15, respectively. In addition, SA@Ca2+/RCSPs nanofibers promoted collagen deposition and enhanced epidermal regeneration. The present study showed that composite nanofibers could quickly undergo hemostasis and effectively promote wound healing. Core–shell nanofiber membranes by coaxial electrospinning process that became gel after absorbing blood were used for wound repair.![]()
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Affiliation(s)
- Rui Li
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Zhiqiang Cheng
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Ruicheng Wen
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
| | - Xiaodong Zhao
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Xiaobin Yu
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Lin Sun
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Yingying Zhang
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Zhiyuan Han
- College of Aerospace Engineering
- Tsinghua University
- Beijing
- People's Republic of China
| | - Yafeng Yuan
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
| | - Lijuan Kang
- College of Resources and Environment
- Jilin Agriculture University
- Changchun 130118
- People's Republic of China
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Auerbach H, Giammanco GE, Schünemann V, Ostrowski AD, Carrano CJ. Mössbauer Spectroscopic Characterization of Iron(III)–Polysaccharide Coordination Complexes: Photochemistry, Biological, and Photoresponsive Materials Implications. Inorg Chem 2017; 56:11524-11531. [DOI: 10.1021/acs.inorgchem.7b00686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hendrik Auerbach
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Giuseppe E. Giammanco
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Volker Schünemann
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Alexis D. Ostrowski
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Carl J. Carrano
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182-1030, United States
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45
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Liu X, Liu H, Qu X, Lei M, Zhang C, Hong H, Payne GF, Liu C. Electrical signals triggered controllable formation of calcium-alginate film for wound treatment. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:146. [PMID: 28823088 DOI: 10.1007/s10856-017-5956-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
Wound dressings play important roles in the management of wounds, and calcium cross-linked alginate (Ca2+-Alg) is a commonly used hydrogel that is adapted for wound treatment. However, conventional methods for fabricating Ca2+-Alg hydrogels can be tedious and difficult to control because of the rapid Ca2+-induced gelation of alginate. In this study, An electrodeposition method was used to rapidly and controllably fabricate Ca2+-Alg films for wound treatment. Several measures of film growth (e.g., thickness and mass) are shown to linearly correlate to the imposed charge transfer at the electrode. Similarly, this charge transfer was also observed to control important physicochemical wound healing properties such as water uptake and retention capacity. Furthermore, a wound healing animal test was performed to evaluate the performance of this electro-fabricated calcium alginate film for wound treatment. This in vivo study demonstrated that wounds dressed with an electro-fabricated Ca2+-Alg film closed faster than that of untreated wounds. Further, the new dermis tissue that formed was composed of reorganized and stratified epithelial layer, with fully developed connective tissue, hair follicle, sebaceous glands as well as aligned collagen. Therefore, our study indicates that this electrofabrication method for the rapid and controlled preparation of alginate film could provide exciting opportunities for wound treatment. More broadly, this study demonstrates the potential of electrochemistry for the fabrication of high performance polymeric materials. Here we report a rapid and controllable fabrication of free-standing alginate films by coupling anodic electrodeposition with subsequent peeling of deposited materials for wound dressing.
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Affiliation(s)
- Xiaoli Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Huan Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Miao Lei
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chuchu Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hua Hong
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Gregory F Payne
- Institute for Biosystems and Biotechnology Research and Fischell Department of Bioengineering, 5115 Plant Sciences Building, College Park, MD, 20742, USA
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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Li Y, Zhang H, Fan M, Zheng P, Zhuang J, Chen L. A robust salt-tolerant superoleophobic alginate/graphene oxide aerogel for efficient oil/water separation in marine environments. Sci Rep 2017; 7:46379. [PMID: 28397862 PMCID: PMC5387746 DOI: 10.1038/srep46379] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 03/14/2017] [Indexed: 11/15/2022] Open
Abstract
Marine pollution caused by frequent oil spill accidents has brought about tremendous damages to marine ecological environment. Therefore, the facile large-scale preparation of three-dimensional (3D) porous functional materials with special wettability is in urgent demand. In this study, we report a low-cost and salt-tolerant superoleophobic aerogel for efficient oil/seawater separation. The aerogel is prepared through incorporating graphene oxide (GO) into alginate (ALG) matrix by using a facile combined freeze-drying and ionic cross-linking method. The 3D structure interconnected by ALG and GO ensures the high mechanical strength and good flexibility of the developed aerogel. The rough microstructure combined with the hydrophilicity of the aerogel ensures its excellent underwater superoleophobic and antifouling properties. High-content polysaccharides contained in the aerogel guarantees its excellent salt-tolerant property. More impressively, the developed aerogel can retain its underwater superoleophobicity even after 30 days of immersion in seawater, indicating its good stability in marine environments. Furthermore, the aerogel could separate various oil/water mixtures with high separation efficiency (>99%) and good reusability (at least 40 cycles). The facile fabrication process combined with the excellent separation performance makes it promising for practical applications in marine environments.
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Affiliation(s)
- Yuqi Li
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hui Zhang
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mizi Fan
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Nanocellulose and Biocomposites Research Centre, College of Engineering, Design and Physical Sciences, Brunel University, UB8 3PH, UK
| | - Peitao Zheng
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiandong Zhuang
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lihui Chen
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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47
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Destruel PL, Zeng N, Maury M, Mignet N, Boudy V. In vitro and in vivo evaluation of in situ gelling systems for sustained topical ophthalmic delivery: state of the art and beyond. Drug Discov Today 2017; 22:638-651. [DOI: 10.1016/j.drudis.2016.12.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/18/2016] [Accepted: 12/15/2016] [Indexed: 10/20/2022]
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48
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Sarkar K, Sen K, Lahiri S. Separation of long-lived 152Eu radioisotopes from a binary mixture of 152Eu and 134Cs by calcium alginate: a green technique. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5176-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Elsayed NH, Monier M, Alatawi RA. Synthesis and characterization of photo-crosslinkable 4-styryl-pyridine modified alginate. Carbohydr Polym 2016; 145:121-31. [DOI: 10.1016/j.carbpol.2016.03.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 12/31/2022]
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50
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Xiao C, You R, Dong Y, Zhang Z. Tunable core–shell particles generated from smart water-soluble chitosan seeds. Carbohydr Polym 2016; 142:51-5. [DOI: 10.1016/j.carbpol.2016.01.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
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