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Zhou T, Li X. Chemically modified seaweed polysaccharides: Improved functional and biological properties and prospective in food applications. Compr Rev Food Sci Food Saf 2024; 23:e13396. [PMID: 38925601 DOI: 10.1111/1541-4337.13396] [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: 01/08/2024] [Revised: 05/14/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
Seaweed polysaccharides are natural biomacromolecules with unique physicochemical properties (e.g., good gelling, emulsifying, and film-forming properties) and diverse biological activities (e.g., anticoagulant, antioxidant, immunoregulatory, and antitumor effects). Furthermore, they are nontoxic, biocompatible and biodegradable, and abundant in resources. Therefore, they have been widely utilized in food, cosmetics, and pharmaceutical industries. However, their properties and bioactivities sometimes are not satisfactory for some purposes. Modification of polysaccharides can impart the amphiphilicity and new functions to the biopolymers and change the structure and conformation, thus effectively improving their functional properties and biological activities so as to meet the requirement for targeted applications. This review outlined the modification methods of representative red algae polysaccharides (carrageenan and agar), brown algae polysaccharides (fucoidan, alginate, and laminaran), and green algae polysaccharides (ulvan) that have potential food applications, including etherification, esterification, degradation, sulfation, phosphorylation, selenylation, and so on. The improved functional properties and bioactivities of the modified seaweed polysaccharides and their potential food applications are also summarized.
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Affiliation(s)
- Tao Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, P. R. China
| | - Xinyue Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, P. R. China
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2
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Fang K, Li P, Zhang B, Liu S, Zhao X, Kou L, Xu W, Guo X, Li J. Insights on updates in sodium alginate/MXenes composites as the designer matrix for various applications: A review. Int J Biol Macromol 2024; 269:132032. [PMID: 38702004 DOI: 10.1016/j.ijbiomac.2024.132032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Advancements in two-dimensional materials, particularly MXenes, have spurred the development of innovative composites through their integration with natural polymers such as sodium alginate (SA). Mxenes exhibit a broad specific surface area, excellent electrical conductivity, and an abundance of surface terminations, which can be combined with SA to maximize the synergistic effect of the materials. This article provides a comprehensive review of state-of-the-art techniques in the fabrication of SA/MXene composites, analyzing the resulting structural and functional enhancements with a specific focus on advancing the design of these composites for practical applications. A detailed exploration of SA/MXene composites is provided, highlighting their utility in various sectors, such as wearable electronics, wastewater treatment, biomedical applications, and electromagnetic interference (EMI) shielding. The review identifies the unique advantages conferred by incorporating MXene in these composites, examines the current challenges, and proposes future research directions to understand and optimize these promising materials thoroughly. The remarkable properties of MXenes are emphasized as crucial for advancing the performance of SA-based composites, indicating significant potential for developing high-performance composite materials.
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Affiliation(s)
- Kun Fang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Pei Li
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China,.
| | - Bing Zhang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Si Liu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiaoyang Zhao
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Linxuan Kou
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Wei Xu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiangyang Guo
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
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3
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Mutch AL, Ferro V, A A, Grøndahl L. Synthesis of sulfated alginate from its tributylammonium salt: Comparing the sulfating agents H 2SO 4-DCC and SO 3·py. Carbohydr Polym 2024; 324:121488. [PMID: 37985083 DOI: 10.1016/j.carbpol.2023.121488] [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: 07/13/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 11/22/2023]
Abstract
Direct comparison of the sulfating agents H2SO4-DCC and SO3·py for the synthesis of sulfated alginate (S-Alg) as well as detailed characterisation of the products that form is lacking. This study involving three researchers used the tributylammonium salt of alginate (T-Alg) as a common substrate for the sulfation reactions. It was found that the use of H2SO4-DCC resulted in poor control of the degree of sulfation (DS) and that the S-Alg polymers contained nitrogen (determined by elemental analysis) as a result of formation of an unwanted N-acylurea adduct. Additionally, a large reduction in chain length was confirmed. In contrast, the use of SO3·py gave reasonable control over DS, resulted in high yields, showed no contamination and no clear change in chain length. Detailed characterisation of such S-Alg polymers by 1H NMR, 13C NMR and 1H,13C-HSQC NMR confirmed sulfation at C2 and C3 with a preference for C2.
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Affiliation(s)
- Alexandra L Mutch
- School of Chemistry and Molecular Biosciences, The University of Queensland, Cooper Road, Brisbane, Queensland 4072, Australia
| | - Vito Ferro
- School of Chemistry and Molecular Biosciences, The University of Queensland, Cooper Road, Brisbane, Queensland 4072, Australia
| | - Anitha A
- School of Chemistry and Molecular Biosciences, The University of Queensland, Cooper Road, Brisbane, Queensland 4072, Australia.
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular Biosciences, The University of Queensland, Cooper Road, Brisbane, Queensland 4072, Australia.
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Knight BM, Edgar KJ, De Yoreo JJ, Dove PM. Chitosan as a Canvas for Studies of Macromolecular Controls on CaCO 3 Biological Crystallization. Biomacromolecules 2023; 24:1078-1102. [PMID: 36853173 DOI: 10.1021/acs.biomac.2c01394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A mechanistic understanding of how macromolecules, typically as an organic matrix, nucleate and grow crystals to produce functional biomineral structures remains elusive. Advances in structural biology indicate that polysaccharides (e.g., chitin) and negatively charged proteoglycans (due to carboxyl, sulfate, and phosphate groups) are ubiquitous in biocrystallization settings and play greater roles than currently recognized. This review highlights studies of CaCO3 crystallization onto chitinous materials and demonstrates that a broader understanding of macromolecular controls on mineralization has not emerged. With recent advances in biopolymer chemistry, it is now possible to prepare chitosan-based hydrogels with tailored functional group compositions. By deploying these characterized compounds in hypothesis-based studies of nucleation rate, quantitative relationships between energy barrier to crystallization, macromolecule composition, and solvent structuring can be determined. This foundational knowledge will help researchers understand composition-structure-function controls on mineralization in living systems and tune the designs of new materials for advanced applications.
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Affiliation(s)
- Brenna M Knight
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Kevin J Edgar
- Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - James J De Yoreo
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Patricia M Dove
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
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Zhang B, Lan W, Xie J. Chemical modifications in the structure of marine polysaccharide as serviceable food processing and preservation assistant: A review. Int J Biol Macromol 2022; 223:1539-1555. [PMID: 36370860 DOI: 10.1016/j.ijbiomac.2022.11.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/24/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022]
Abstract
Marine polysaccharides are a kind of natural polysaccharides which isolated and extracted from marine organisms. Now some marine polysaccharides, such as chitosan, sodium alginate and agar, have been proven to exhibit antibacterial, antioxidant functions and biocompatibility, which are often used to preserve food or improve the physicochemical properties of food. However, they still have the defects of unsatisfactory preservation effect and biological activity, which can be remedied by its modification. Chemical modification is the most effective of all modification methods. The advances in common chemical modification methods of chitosan, sodium alginate, agar and other marine polysaccharides and research progress of modified products in food processing and preservation were summarized, and the influence of additional reaction conditions on the existence of chemical modification sites of polysaccharides was discussed. The modification of functional groups in natural marine polysaccharides leads to the change of molecular structure, which can improve the physical, chemical and biological properties of marine polysaccharides. Chemically modified products have been used in various fields of food applications, such as food preservatives, food additives, food packaging, and food processing aids. In general, chemical modification has excellent potential for food processing and preservation, which can improve the function of marine polysaccharides.
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Affiliation(s)
- Bingjie Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Weiqing Lan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai 201306, China.
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai 201306, China.
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Xie Y, Kollampally SCR, Jorgensen M, Zhang X. Alginate microfibers as therapeutic delivery scaffolds and tissue mimics. Exp Biol Med (Maywood) 2022; 247:2103-2118. [PMID: 36000165 PMCID: PMC9837301 DOI: 10.1177/15353702221112905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Alginate, a naturally occurring polysaccharide, has been widely used in cell encapsulation, 3D culture, cell therapy, tissue engineering, and regenerative medicine. Alginate's frequent use comes from its biocompatibility and ability to easily form hydrogel in a variety of forms (e.g. microcapsules, microfibers, and porous scaffolds), which can provide immunoprotection for cell therapy and mimic the extracellular matrix for tissue engineering. During the past 15 years, alginate hydrogel microfibers have attracted more and more attention due to its continuous thin tubular structures (diameter or shell thickness ⩽ 200 µm), high-density cell growth, high handleability and retrievability, and scalability. This review article provides a concise overview of alginate and its resultant hydrogel microfibers for the purpose of promoting multidisciplinary, collaborative, and convergent research in the field. It starts with a historical review of alginate as biomaterials and provides basics about alginate structure, properties, and mechanisms of hydrogel formation, followed by current challenges in effective cell delivery and functional tissue engineering. In particular, this work discusses how alginate microfiber technology could provide solutions to unmet needs with a focus on the current state of the art of alginate microfiber technology and its applications in 3D cell culture, cell delivery, and tissue engineering. At last, we discuss future directions in the perspective of alginate-based advanced technology development in biology and medicine.
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Affiliation(s)
- Yubing Xie
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
| | | | - Matthew Jorgensen
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
| | - Xulang Zhang
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
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7
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Modification and preparation of four natural hydrogels and their application in biopharmaceutical delivery. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04412-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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8
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Gao YZ, Li A, Chen JC, Cui Z, Wu YX. Quaternized Sodium Alginate- g-Ethyl-Oxazoline Copolymer Brushes and Their Supramolecular Networks via Hydrogen Bonding. ACS Biomater Sci Eng 2022; 8:3424-3437. [PMID: 35878006 DOI: 10.1021/acsbiomaterials.2c00436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel copolymer brushes of quaternized sodium alginate-g-(2-ethyl-2-oxazoline)n are achieved by the grafting reaction of 2-ethyl-2-oxazoline (EOX) from benzyl bromide groups in quaternized sodium alginate (QSA). The average number of (EOX)n structural units is mediated from 1 to 5 by changing the molar ratio of the EOX monomer to benzyl bromide side groups. There exists obvious microphase separation between the QSA backbone and (EOX)n segments in the copolymer brushes due to their thermodynamic incompatibility. The strong hydrogen-bonding interaction between -OH groups in the backbone and N─C═O groups in (EOX)n segments is helpful for the construction of reversible supramolecular networks. The copolymer brushes show low cytotoxicity for HeLa cells and good antibacterial properties for Escherichia coli and Staphylococcus aureus for the contribution of hydrophilic (EOX)n segments and antibacterial activity of the quaternary ammonium. The antiprotein behavior of polymer surfaces is improved after rearrangement of (EOX)n segments by tetrahydrofuran (THF) vapor induction. These copolymer brushes have good prospects for biomedical applications.
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Affiliation(s)
- Yu-Zhuang Gao
- State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology, 15 North 3th-Ring East Road, Chaoyang District, Beijing 100029, China
| | - Ang Li
- State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology, 15 North 3th-Ring East Road, Chaoyang District, Beijing 100029, China
| | - Jun-Cai Chen
- State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology, 15 North 3th-Ring East Road, Chaoyang District, Beijing 100029, China
| | - Zhe Cui
- State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology, 15 North 3th-Ring East Road, Chaoyang District, Beijing 100029, China
| | - Yi-Xian Wu
- State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology, 15 North 3th-Ring East Road, Chaoyang District, Beijing 100029, China
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Improved 3D Printing and Cell Biology Characterization of Inorganic-Filler Containing Alginate-Based Composites for Bone Regeneration: Particle Shape and Effective Surface Area Are the Dominant Factors for Printing Performance. Int J Mol Sci 2022; 23:ijms23094750. [PMID: 35563143 PMCID: PMC9102030 DOI: 10.3390/ijms23094750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
The use of organic-inorganic 3D printed composites with enhanced properties in biomedical applications continues to increase. The present study focuses on the development of 3D printed alginate-based composites incorporating inorganic fillers with different shapes (angular and round), for bone regeneration. Reactive fillers (bioactive glass 13-93 and hydroxyapatite) and non-reactive fillers (inert soda-lime glass) were investigated. Rheological studies and the characterization of various extrusion-based parameters, including material throughput, printability, shape fidelity and filament fusion, were carried out to identify the parameters dominating the printing process. It was shown that the effective surface area of the filler particle has the highest impact on the printing behavior, while the filler reactivity presents a side aspect. Composites with angular particle morphologies showed the same high resolution during the printing process, almost independent from their reactivity, while composites with comparable amounts of round filler particles lacked stackability after printing. Further, it could be shown that a higher effective surface area of the particles can circumvent the need for a higher filler content for obtaining convincing printing results. In addition, it was proven that, by changing the particle shape, the critical filler content for the obtained adequate printability can be altered. Preliminary in vitro biocompatibility investigations were carried out with the bioactive glass containing ink. The 3D printed ink, forming an interconnected porous scaffold, was analyzed regarding its biocompatibility in direct or indirect contact with the pre-osteoblast cell line MC3T3-E1. Both kinds of cell tests showed increased viability and a high rate of proliferation, with complete coverage of the 3D scaffolds' surface already after 7 d post cell-seeding.
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10
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Self-aggregate performance of hexyl alginate ester derivative synthesized via SN2 reaction for controlled release of λ-cyhalothrin. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04103-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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11
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Enhanced Electrochemical Properties of Na0.67MnO2 Cathode for Na-Ion Batteries Prepared with Novel Tetrabutylammonium Alginate Binder. BATTERIES-BASEL 2022. [DOI: 10.3390/batteries8010006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Both the binder and solid–electrolyte interface play an important role in improving the cycling stability of electrodes for Na-ion batteries. In this study, a novel tetrabutylammonium (TBA) alginate binder is used to prepare a Na0.67MnO2 electrode for sodium-ion batteries with improved electrochemical performance. The ageing of the electrodes is characterized. TBA alginate-based electrodes are compared to polyvinylidene fluoride- (PVDF) and Na alginate-based electrodes and show favorable electrochemical performance, with gravimetric capacity values of up to 164 mAh/g, which is 6% higher than measured for the electrode prepared with PVDF binder. TBA alginate-based electrodes also display good rate capability and improved cyclability. The solid–electrolyte interface of TBA alginate-based electrodes is similar to that of PVDF-based electrodes. As the only salt of alginic acid soluble in non-aqueous solvents, TBA alginate emerges as a good alternative to PVDF binder in battery applications where the water-based processing of electrode slurries is not feasible, such as the demonstrated case with Na0.67MnO2.
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Jayakody MM, Vanniarachchy MPG, Wijesekara I. Seaweed derived alginate, agar, and carrageenan based edible coatings and films for the food industry: a review. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-021-01277-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Alginate Modification and Lectin-Conjugation Approach to Synthesize the Mucoadhesive Matrix. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112411818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Alginates are natural anionic polyelectrolytes investigated in various biomedical applications, such as drug delivery, tissue engineering, and 3D bioprinting. Functionalization of alginates is one possible way to provide a broad range of requirements for those applications. A range of techniques, including esterification, amidation, acetylation, phosphorylation, sulfation, graft copolymerization, and oxidation and reduction, have been implemented for this purpose. The rationale behind these investigations is often the combination of such modified alginates with different molecules. Particularly promising are lectin conjugate macromolecules for lectin-mediated drug delivery, which enhance the bioavailability of active ingredients on a specific site. Most interesting for such application are alginate derivatives, because these macromolecules are more resistant to acidic and enzymatic degradation. This review will report recent progress in alginate modification and conjugation, focusing on alginate-lectin conjugation, which is proposed as a matrix for mucoadhesive drug delivery and provides a new perspective for future studies with these conjugation methods.
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Rosiak P, Latanska I, Paul P, Sujka W, Kolesinska B. Modification of Alginates to Modulate Their Physic-Chemical Properties and Obtain Biomaterials with Different Functional Properties. Molecules 2021; 26:7264. [PMID: 34885846 PMCID: PMC8659150 DOI: 10.3390/molecules26237264] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 01/02/2023] Open
Abstract
Modified alginates have a wide range of applications, including in the manufacture of dressings and scaffolds used for regenerative medicine, in systems for selective drug delivery, and as hydrogel materials. This literature review discusses the methods used to modify alginates and obtain materials with new or improved functional properties. It discusses the diverse biological and functional activity of alginates. It presents methods of modification that utilize both natural and synthetic peptides, and describes their influence on the biological properties of the alginates. The success of functionalization depends on the reaction conditions being sufficient to guarantee the desired transformations and provide modified alginates with new desirable properties, but mild enough to prevent degradation of the alginates. This review is a literature description of efficient methods of alginate functionalization using biologically active ligands. Particular attention was paid to methods of alginate functionalization with peptides, because the combination of the properties of alginates and peptides leads to the obtaining of conjugates with properties resulting from both components as well as a completely new, different functionality.
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Affiliation(s)
- Piotr Rosiak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
| | - Ilona Latanska
- Tricomed S.A., Swietojanska 5/9, 93-493 Lodz, Poland; (I.L.); (W.S.)
| | - Paulina Paul
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
| | - Witold Sujka
- Tricomed S.A., Swietojanska 5/9, 93-493 Lodz, Poland; (I.L.); (W.S.)
| | - Beata Kolesinska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (P.R.); (P.P.)
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15
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Resmi R, Parvathy J, Saravana RP, Raj G, Joseph R. Biosynthesized Nanosilver from Alginate Dialdehyde: An In Vitro Evaluation. ChemistrySelect 2021. [DOI: 10.1002/slct.202103220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rajalekshmi Resmi
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Jayasree Parvathy
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Ramakrishna Perumal Saravana
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Gijo Raj
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Roy Joseph
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
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16
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Chen X, Zhu Q, Liu C, Li D, Yan H, Lin Q. Esterification of Alginate with Alkyl Bromides of Different Carbon Chain Lengths via the Bimolecular Nucleophilic Substitution Reaction: Synthesis, Characterization, and Controlled Release Performance. Polymers (Basel) 2021; 13:3351. [PMID: 34641167 PMCID: PMC8512272 DOI: 10.3390/polym13193351] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/25/2021] [Accepted: 09/28/2021] [Indexed: 12/27/2022] Open
Abstract
To extend the alginate applicability for the sustained release of hydrophobic medicine in drug delivery systems, the alkyl alginate ester derivative (AAD), including hexyl alginate ester derivative (HAD), octyl alginate ester derivative (OAD), decyl alginate ester derivative (DAD), and lauryl alginate ester derivative (LAD), were synthesized using the alkyl bromides with different lengths of carbon chain as the hydrophobic modifiers under homogeneous conditions via the bimolecular nucleophilic substitution (SN2) reaction. Experimental results revealed that the successful grafting of the hydrophobic alkyl groups onto the alginate molecular backbone via the SN2 reaction had weakened and destroyed the intramolecular hydrogen bonds, thus enhancing the molecular flexibility of the alginate, which endowed the AAD with a good amphiphilic property and a critical aggregation concentration (CAC) of 0.48~0.0068 g/L. Therefore, the resultant AAD could form stable spherical self-aggregated micelles with the average hydrodynamic diameter of 285.3~180.5 nm and zeta potential at approximately -44.8~-34.4 mV due to the intra or intermolecular hydrophobic associations. With the increase of the carbon chain length of the hydrophobic side groups, the AAD was more prone to self-aggregation, and therefore was able to achieve the loading and sustained release of hydrophobic ibuprofen. Additionally, the swelling and degradation of AAD microcapsules and the diffusion of the loaded drug jointly controlled the release rate of ibuprofen. Meanwhile, the AAD also displayed low cytotoxicity to the murine macrophage RAW264.7 cells. Thanks to the good amphiphilic property, colloidal interface activity, hydrophobic drug-loading performance, and cytocompatibility, the synthesized AAD exhibited a great potential for the development of hydrophobic pharmaceutical formulations.
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Affiliation(s)
- Xiuqiong Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Qingmei Zhu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Chang Liu
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Dongze Li
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Huiqiong Yan
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Qiang Lin
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.C.); (Q.Z.)
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (C.L.); (D.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
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17
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Synthesis and self-assembly behavior of decyl alginate ester derivative via bimolecular nucleophilic substitution reaction. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04902-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Formation of Amphiphilic Molecules from the Most Common Marine Polysaccharides, toward a Sustainable Alternative? Molecules 2021; 26:molecules26154445. [PMID: 34361598 PMCID: PMC8371489 DOI: 10.3390/molecules26154445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 01/17/2023] Open
Abstract
Marine polysaccharides are part of the huge seaweeds resources and present many applications for several industries. In order to widen their potential as additives or bioactive compounds, some structural modifications have been studied. Among them, simple hydrophobization reactions have been developed in order to yield to grafted polysaccharides bearing acyl-, aryl-, alkyl-, and alkenyl-groups or fatty acid chains. The resulting polymers are able to present modified physicochemical and/or biological properties of interest in the current pharmaceutical, cosmetics, or food fields. This review covers the chemical structures of the main marine polysaccharides, and then focuses on their structural modifications, and especially on hydrophobization reactions mainly esterification, acylation, alkylation, amidation, or even cross-linking reaction on native hydroxyl-, amine, or carboxylic acid functions. Finally, the question of the necessary requirement for more sustainable processes around these structural modulations of marine polysaccharides is addressed, considering the development of greener technologies applied to traditional polysaccharides.
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Zhang T, Zhu D, Wang W, Qian H, Chu Z, Chen B, Ruan J, Shao M, Zha Z. Facile Synthesis of Thermo-Sensitive Composite Hydrogel with Well Dispersed Ag Nanoparticles for Application in Superior Antibacterial Infections. J Biomed Nanotechnol 2021; 17:1148-1159. [PMID: 34167628 DOI: 10.1166/jbn.2021.3099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, we have described a facile process for fabrication of multifunctional composite hydrogel, in which sodium alginate was subjected to cross-linking using Ca2+ derived from ZnO/CaCO₃/Ag composite nanospheres. The ZnO/CaCO₃/Ag composite nanospheres were prepared based on our previously reported AA-[Zn(OH)₄]2- composite nanosphere reaction conducted with silver and calcium salt following hydrothermal method, that led to the disintegration and release of Ca2+ under acidic conditions for application as a cross-linking agentto catalyze reaction with sodium alginate. Ag nanoparticles were well-dispersed in the multifunctional composite hydrogel, exhibiting excellent antibacterial activity. Additionally, polydopamine (PDA) with photothermal effect was also added to obtain a multifunctional composite hydrogel, and this hydrogel showed photothermal conversion performance and facilitated the release of Ag+ to achieve the rapid antibacterial effect. Simultaneously, PDA NPs could scavenge free radicals and improve cell adhesion. All such features would promote wound healing. The potent antimicrobial activity of the prepared composite hydrogel was demonstrated in the mouse model of S. aureus infection, and biosafety of the hydrogel was confirmed by conducting histopathological examination in the mouse model. This type of multifunctional hydrogel wound dressing with photosensitive and antibacterial properties presents with broad applications and prospects in antibacterial treatment.
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Affiliation(s)
- Tianyu Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Dongdong Zhu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wanni Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Haisheng Qian
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China
| | - Zhaoyou Chu
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China
| | - Benjing Chen
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China
| | - Juan Ruan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Min Shao
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Zhengbao Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
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20
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Zhao T, Li X, Gong Y, Guo Y, Quan F, Shi Q. Study on polysaccharide polyelectrolyte complex and fabrication of alginate/chitosan derivative composite fibers. Int J Biol Macromol 2021; 184:181-187. [PMID: 34051261 DOI: 10.1016/j.ijbiomac.2021.05.150] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/13/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
Sodium alginate (SA) blending with quaternary ammonium chitosan (QAC) polysaccharide polyelectrolyte complex (PEC) system was chosen to research the binary blending of anionic and cationic polyelectrolytes in detail and to fabricate SA/QAC composite fibers. The potential charge and the rheology of the PEC solution were characterized through Zeta Laser Particle Size Analyzer and DV-C Rotary Rheometer, the structure and properties of the composite fiber were examined by FT-IR, XRD, SEM, EDS, and YG004 single fiber strength meter. The results showed that as the mass ratio of SA to QAC increased from 0/1 to 10/1, the state of the binary solution in water changed from transparent uniform solution to turbid solution with flocculent precipitate, then back to uniform solution, accompanied by the electrical potential change. Moreover, the electrical potential also depended on salt in solution. By using this uniform PEC solution with the mass ratio of SA to QAC 10/1 and concentration 5.5 wt% in water, SA/QAC composite fibers with excellent performances of breaking strength 2.37 cN·dtex-1 and breaking elongation 14.11%, good antibacterial and hydrophobic properties were fabricated via green wet-spinning process. The FT-IR and EDS determination indicated there formed egg-box between SA and Ca2+, cross-linked network between glutaraldehyde(GA) and SA, QAC, respectively. Depending on its mechanical, natural, and antibacterial properties, the SA/QAC composite fiber has advantages in wound dressing, medical gauze, medical absorbable suture, and tissue engineering.
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Affiliation(s)
- Tongyao Zhao
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xiaoyan Li
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yumei Gong
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Yanzhu Guo
- School of Light and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Fengyu Quan
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China.
| | - Qiang Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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21
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Ehsanimehr S, Najafi Moghadam P, Dehaen W, Shafiei-Irannejad V. Synthesis of pH-sensitive nanocarriers based on polyacrylamide grafted nanocrystalline cellulose for targeted drug delivery to folate receptor in breast cancer cells. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110398] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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22
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Karpov AA, Anikin NA, Mihailova AM, Smirnov SS, Vaulina DD, Shilenko LA, Ivkin DY, Bagrov AY, Moiseeva OM, Galagudza MM. Model of Chronic Thromboembolic Pulmonary Hypertension in Rats Caused by Repeated Intravenous Administration of Partially Biodegradable Sodium Alginate Microspheres. Int J Mol Sci 2021; 22:ijms22031149. [PMID: 33498971 PMCID: PMC7865986 DOI: 10.3390/ijms22031149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/23/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare and life-threatening complication of pulmonary embolism. As existing animal models of CTEPH do not fully recapitulate complex disease pathophysiology, we report a new rat model for CTEPH evoked by repetitive embolization of the distal pulmonary artery branches with partially biodegradable alginate microspheres (MSs). MSs (180 ± 28 μm) were intravenously administered eight times at 4-day intervals; control animals received saline. The validity of the model was confirmed using transthoracic echocardiography, exercise testing, catheterization of the right ventricle, and histological examination of the lung and heart. The animals in the CTEPH group demonstrated a stable increase in right ventricular systolic pressure (RVSP) and decreased exercise tolerance. Histopathological examination revealed advanced medial hypertrophy in the small pulmonary arteries associated with fibrosis. The diameter of the main pulmonary artery was significantly larger in the CTEPH group than in the control group. Marinobufagenin and endothelin-1 serum levels were significantly elevated in rats with CTEPH. In conclusion, repetitive administration of alginate MSs in rats resulted in CTEPH development characterized by specific lung vasculature remodeling, reduced exercise tolerance, and a persistent rise in RVSP. The developed model can be used for pre-clinical testing of promising drug candidates.
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Affiliation(s)
- Andrei A. Karpov
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
- Correspondence: (A.A.K.); (M.M.G.); Tel.: +7-951-678-7006 (A.A.K.)
| | - Nikita A. Anikin
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
| | - Aleksandra M. Mihailova
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
| | - Sergey S. Smirnov
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
- First Pavlov State Medical University of Saint Petersburg, 197022 St. Petersburg, Russia
| | - Dariya D. Vaulina
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
- N.P. Bechtereva Institute of Human Brain, Russian Academy of Science, 197376 St. Petersburg, Russia
| | - Leonid A. Shilenko
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
- First Pavlov State Medical University of Saint Petersburg, 197022 St. Petersburg, Russia
| | - Dmitry Yu. Ivkin
- Saint Petersburg State Chemical Pharmaceutical University, 197376 St. Petersburg, Russia;
| | - Alexei Y. Bagrov
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, 194223 St. Petersburg, Russia;
| | - Olga M. Moiseeva
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
| | - Michael M. Galagudza
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (N.A.A.); (A.M.M.); (S.S.S.); (D.D.V.); (L.A.S.); (O.M.M.)
- Correspondence: (A.A.K.); (M.M.G.); Tel.: +7-951-678-7006 (A.A.K.)
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23
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Choi C, Kim S, Cha C. Dual-functional alginate crosslinker: Independent control of crosslinking density and cell adhesive properties of hydrogels via separate conjugation pathways. Carbohydr Polym 2021; 252:117128. [PMID: 33183590 DOI: 10.1016/j.carbpol.2020.117128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/12/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022]
Abstract
Alginate is an abundant natural polysaccharide widely utilized in various biomedical applications. Alginate also possesses numerous hydroxyl and carboxylate functional groups that allow chemical modifications to introduce different functionalities. However, it is difficult to apply various chemical reactions to alginate due to limited solubility in organic solvents. Herein, functional moieties for radical polymerization and cell adhesion were separately conjugated to hydroxyl and carboxylate groups of alginate, respectively, in order to independently control the crosslinking density and cell adhesive properties of hydrogels. Sodium counterions of alginate are first substituted with tetrabutylammonium ions to facilitate the dissolution in an organic solvent, followed by in situ conjugations of (1) cell adhesion molecules (CAM) via carbodiimide-mediated amide formation and (2) methacrylate via ring-opening nucleophilic reaction. The resulting CAM-linked methacrylic alginate was able to not only crosslink different monomers to form hydrogels with varying mechanical properties, but also induce stable cell adhesion to the hydrogels.
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Affiliation(s)
- Cholong Choi
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Center for Multidimensional Programmable Matter, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Suntae Kim
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Center for Multidimensional Programmable Matter, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Chaenyung Cha
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Center for Multidimensional Programmable Matter, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
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24
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Jeong HR, Yoo JS, Choi YL, Jang YS, Lee YS. Characterization of an organic solvent-tolerant polysaccharide lyase from Microbulbifer thermotolerans DAU221. Int J Biol Macromol 2020; 169:452-462. [PMID: 33358946 DOI: 10.1016/j.ijbiomac.2020.12.138] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 11/15/2022]
Abstract
Alginate and its derivatives are annually produced approximately 30,000 tons or more and are applied to various industries as they are natural polymers. The global market for alginate and its derivatives has been growing steadily. There is little research compared to other enzymes produced through biomass degradation or modification. An alginate lyase, MtAl138, from Microbulbifer thermotolerans DAU221 was cloned and identified in Escherichia coli BL21 (DE3). MtAl138 contains a highly conserved motif (R538TELR, Q607IH609, and YFKAGVY716NQ), which indicates that it belongs to the polysaccharide lyase family 7 (PL7). MtAl138, with a molecular weight of 77 kDa worked optimally at 45 °C and pH 7.4. MtAl138 showed twice as much activity as when there was no NaCl when there was between 100 and 600 mM NaCl. Moreover, its activity increased in organic solvents such as benzene, hexane, methanol, and toluene. Based on the thin layer chromatography analyses, MtAl38 is an endo-type enzyme that produces di-, tri-, or tetrasaccharides from polyG and polyM. This study provided that MtAl138 is an endoenzyme that showed outstanding enzymatic activity at concentrated salt solutions and organic solvents, which makes it a reasonably attractive enzyme for use in various industries.
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Affiliation(s)
- Hae-Rin Jeong
- Department of Biotechnology, Dong-A University, Busan 49315, Republic of Korea
| | - Ju-Soon Yoo
- Department of Biotechnology, Dong-A University, Busan 49315, Republic of Korea
| | - Yong-Lark Choi
- Department of Biotechnology, Dong-A University, Busan 49315, Republic of Korea
| | - Yu-Sin Jang
- Department of Agricultural Chemistry and Food Science Technology, Institute of Agriculture & Life Science (IALS), Gyeongsang National University, Jinju, Republic of Korea; Division of Applied Life Science (BK21), Gyeongsang National University, Jinju, Republic of Korea.
| | - Yong-Suk Lee
- Department of Biotechnology, Dong-A University, Busan 49315, Republic of Korea; Division of Applied Life Science (BK21), Gyeongsang National University, Jinju, Republic of Korea.
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25
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Ogay V, Mun EA, Kudaibergen G, Baidarbekov M, Kassymbek K, Zharkinbekov Z, Saparov A. Progress and Prospects of Polymer-Based Drug Delivery Systems for Bone Tissue Regeneration. Polymers (Basel) 2020; 12:E2881. [PMID: 33271770 PMCID: PMC7760650 DOI: 10.3390/polym12122881] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022] Open
Abstract
Despite the high regenerative capacity of bone tissue, there are some cases where bone repair is insufficient for a complete functional and structural recovery after damage. Current surgical techniques utilize natural and synthetic bone grafts for bone healing, as well as collagen sponges loaded with drugs. However, there are certain disadvantages associated with these techniques in clinical usage. To improve the therapeutic efficacy of bone tissue regeneration, a number of drug delivery systems based on biodegradable natural and synthetic polymers were developed and examined in in vitro and in vivo studies. Recent studies have demonstrated that biodegradable polymers play a key role in the development of innovative drug delivery systems and tissue engineered constructs, which improve the treatment and regeneration of damaged bone tissue. In this review, we discuss the most recent advances in the field of polymer-based drug delivery systems for the promotion of bone tissue regeneration and the physical-chemical modifications of polymers for controlled and sustained release of one or more drugs. In addition, special attention is given to recent developments on polymer nano- and microparticle-based drug delivery systems for bone regeneration.
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Affiliation(s)
- Vyacheslav Ogay
- Stem Cell Laboratory, National Center for Biotechnology, Nur-Sultan 010000, Kazakhstan; (V.O.); (G.K.)
| | - Ellina A. Mun
- School of Sciences and Humanities, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
| | - Gulshakhar Kudaibergen
- Stem Cell Laboratory, National Center for Biotechnology, Nur-Sultan 010000, Kazakhstan; (V.O.); (G.K.)
| | - Murat Baidarbekov
- Research Institute of Traumatology and Orthopedics, Nur-Sultan 010000, Kazakhstan;
| | - Kuat Kassymbek
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
| | - Zharylkasyn Zharkinbekov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
| | - Arman Saparov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
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Choukaife H, Doolaanea AA, Alfatama M. Alginate Nanoformulation: Influence of Process and Selected Variables. Pharmaceuticals (Basel) 2020; 13:E335. [PMID: 33114120 PMCID: PMC7690787 DOI: 10.3390/ph13110335] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/13/2022] Open
Abstract
Nanocarriers are defined as structures and devices that are constructed using nanomaterials which add functionality to the encapsulants. Being small in size and having a customized surface, improved solubility and multi-functionality, it is envisaged that nanoparticles will continue to create new biomedical applications owing to their stability, solubility, and bioavailability, as well as controlled release of drugs. The type and physiochemical as well as morphological attributes of nanoparticles influence their interaction with living cells and determine the route of administration, clearance, as well as related toxic effects. Over the past decades, biodegradable polymers such as polysaccharides have drowned a great deal of attention in pharmaceutical industry with respect to designing of drug delivery systems. On this note, biodegradable polymeric nanocarrier is deemed to control the release of the drug, stabilize labile molecules from degradation and site-specific drug targeting, with the main aim of reducing the dosing frequency and prolonging the therapeutic outcomes. Thus, it is essential to select the appropriate biopolymer material, e.g., sodium alginate to formulate nanoparticles for controlled drug delivery. Alginate has attracted considerable interest in pharmaceutical and biomedical applications as a matrix material of nanocarriers due to its inherent biological properties, including good biocompatibility and biodegradability. Various techniques have been adopted to synthesize alginate nanoparticles in order to introduce more rational, coherent, efficient and cost-effective properties. This review highlights the most used and recent manufacturing techniques of alginate-based nanoparticulate delivery system, including emulsification/gelation complexation, layer-by-layer, spray drying, electrospray and electrospinning methods. Besides, the effects of the main processing and formulation parameters on alginate nanoparticles are also summarized.
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Affiliation(s)
- Hazem Choukaife
- Faculty of Pharmacy, Universiti Sultan Zainal Abidin, Besut Campus, Terengganu 22200, Malaysia;
| | - Abd Almonem Doolaanea
- Department of Pharmaceutical Technology, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia;
| | - Mulham Alfatama
- Faculty of Pharmacy, Universiti Sultan Zainal Abidin, Besut Campus, Terengganu 22200, Malaysia;
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New gellan gum-graft-poly(d,l-lactide-co-glycolide) copolymers as promising bioinks: Synthesis and characterization. Int J Biol Macromol 2020; 162:1653-1667. [PMID: 32777413 DOI: 10.1016/j.ijbiomac.2020.07.254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 01/07/2023]
Abstract
This research focused on the aim of tackling the urgent demand of printable biomaterials, hence we synthetized and characterized three gellan gum-graft-poly(d,l-lactide-co-glycolide) copolymers (GGm-PLGA a, b and c) which differed in the graft substitution degree. We investigated the effect of the polyester chain grafted onto hydrophilic backbone of gellan gum in terms of physicochemical properties and the ability of the system to print 3D cell laden constructs. In particular, we evaluated thermo-rheological, ionotropic crosslinking, shear thinning, swelling and stability properties of these copolymers and their derived biomaterials and findings related to the degree of functionalization. Moreover, the optimization of the 3D process parameters and the effect of different water/DPBS mixtures was investigated, demonstrating the feasibility of the system to print 3D constructs. Finally, biological tests revealed that fibroblasts and chondrocytes remained viable after printing and over a culture period of seven days into scaffolds.
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28
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Kabir II, Sorrell CC, Mofarah SS, Yang W, Yuen ACY, Nazir MT, Yeoh GH. Alginate/Polymer-Based Materials for Fire Retardancy: Synthesis, Structure, Properties, and Applications. POLYM REV 2020. [DOI: 10.1080/15583724.2020.1801726] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Imrana I. Kabir
- School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Charles C. Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Sajjad S. Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Wei Yang
- School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Anthony Chun Yin Yuen
- School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Muhammad Tariq Nazir
- School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Guan Heng Yeoh
- School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, Australia
- Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, Australia
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Lee S, Lee K. pH-Sensitive Folic Acid Conjugated Alginate Nanoparticle for Induction of Cancer-Specific Fluorescence Imaging. Pharmaceutics 2020; 12:E537. [PMID: 32545164 PMCID: PMC7355973 DOI: 10.3390/pharmaceutics12060537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 12/21/2022] Open
Abstract
In cancer nanomedicine, numerous studies have been conducted on the surface modification and transport capacity of nanoparticles (NPs); however, biological barriers, such as enzymatic degradation or non-specific delivery during circulation, remain to be cleared. Herein, we developed pH-sensitive NPs that degrade in an acidic environment and release 5-aminolevulinic acid (5ALA) to the target site. NPs were prepared by conjugating alginate with folic acid, followed by encapsulation of 5ALA through a water-in-oil (W/O) emulsion method. The alginate-conjugated folic acid nanoparticles (AF NPs) were homogeneous in size, stable for a long time in aqueous suspension without aggregation, and non-toxic. AF NPs were small enough to efficiently infiltrate tumors (<50 nm) and were specifically internalized by cancer cells through receptor-mediated endocytosis. After the intracellular absorption of NPs, alginate was deprotonated in the lysosomes and released 5ALA, which was converted to protoporphyrin IX (PpIX) through mitochondrial heme synthesis. Our study outcomes demonstrated that AF NPs were not degraded by enzymes or other external factors before reaching cancer cells, and fluorescent precursors were specifically and accurately delivered to cancer cells to generate fluorescence.
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Affiliation(s)
| | - Kangwon Lee
- Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 08826, Korea;
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30
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Production and physicochemical characterization of a new amine derivative of gellan gum and rheological study of derived hydrogels. Carbohydr Polym 2020; 236:116033. [DOI: 10.1016/j.carbpol.2020.116033] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/23/2020] [Accepted: 02/17/2020] [Indexed: 12/31/2022]
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31
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Szabó L, Gerber-Lemaire S, Wandrey C. Strategies to Functionalize the Anionic Biopolymer Na-Alginate without Restricting Its Polyelectrolyte Properties. Polymers (Basel) 2020; 12:E919. [PMID: 32326625 PMCID: PMC7240516 DOI: 10.3390/polym12040919] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/09/2020] [Accepted: 04/13/2020] [Indexed: 12/14/2022] Open
Abstract
The natural anionic polyelectrolyte alginate and its derivatives are of particular interest for pharmaceutical and biomedical applications. Most interesting for such applications are alginate hydrogels, which can be processed into various shapes, self-standing or at surfaces. Increasing efforts are underway to functionalize the alginate macromolecules prior to hydrogel formation in order to overcome the shortcomings of purely ionically cross-linked alginate hydrogels that are hindering the progress of several sophisticated biomedical applications. Particularly promising are derivatives of alginate, which allow simultaneous ionic and covalent cross-linking to improve the physical properties and add biological activity to the hydrogel. This review will report recent progress in alginate modification and functionalization with special focus on synthesis procedures, which completely conserve the ionic functionality of the carboxyl groups along the backbone. Recent advances in analytical techniques and instrumentation supported the goal-directed modification and functionalization.
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Affiliation(s)
| | - Sandrine Gerber-Lemaire
- Group for Functionalized Biomaterials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC SCI-SB-SG, Station 6, CH-1015 Lausanne, Switzerland; (L.S.); (C.W.)
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32
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Physico‐chemical characterization of alginates isolated from a Tunisian
Padina pavonica
algae as a sustainable biomaterial. POLYM INT 2020. [DOI: 10.1002/pi.6002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Sánchez-Morán H, Ahmadi A, Vogler B, Roh KH. Oxime Cross-Linked Alginate Hydrogels with Tunable Stress Relaxation. Biomacromolecules 2019; 20:4419-4429. [DOI: 10.1021/acs.biomac.9b01100] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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34
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Soares SF, Rocha MJ, Ferro M, Amorim CO, Amaral JS, Trindade T, Daniel-da-Silva AL. Magnetic nanosorbents with siliceous hybrid shells of alginic acid and carrageenan for removal of ciprofloxacin. Int J Biol Macromol 2019; 139:827-841. [PMID: 31394147 DOI: 10.1016/j.ijbiomac.2019.08.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Abstract
Water contamination with antibiotics is a serious environmental threat. Ciprofloxacin (CIP) is one of the most frequently detected antibiotics in water. Herein, silica-based magnetic nanosorbents prepared using three seaweed polysaccharides, alginic acid, κ- and λ-carrageenan, were developed and evaluated in the uptake of ciprofloxacin. The sorbents were firstly characterized in detail to assess their morphology and composition. A systematic investigation was conducted to study the adsorption performance towards CIP, by varying the initial pH, contact time and initial CIP concentration. The maximum adsorption capacity was 464, 423 and 1350 mg/g for particles prepared from alginic acid, κ- and λ-carrageenan respectively. These high values indicate that these materials are among the most effective sorbents reported so far for the removal of CIP from water. The kinetic data were consistent with the pseudo-second-order model. The CIP adsorption on λ-carrageenan particles followed a cooperative process with sigmoidal isotherm that was described by the Dubinin-Radushkevich model. The high charge density of λ-carrageenan and the propensity of CIP molecules to self-aggregate may explain the cooperative nature of CIP adsorption. The sorbents were easily regenerated in mild conditions and could be reused in CIP removal up to 4 times without a significant loss of adsorptive properties.
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Affiliation(s)
- Sofia F Soares
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria João Rocha
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marta Ferro
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlos O Amorim
- CICECO-Aveiro Institute of Materials, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - João S Amaral
- CICECO-Aveiro Institute of Materials, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Tito Trindade
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana L Daniel-da-Silva
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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35
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Paixão LC, Lopes IA, Barros Filho AKD, Santana AA. Alginate biofilms plasticized with hydrophilic and hydrophobic plasticizers for application in food packaging. J Appl Polym Sci 2019. [DOI: 10.1002/app.48263] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Louryval Coelho Paixão
- Interdisciplinary Bachelor of Science and TechnologyFederal University of Maranhão Avenida dos Portugueses, 1966, Bacanga, São Luís 65080‐805 Brazil
| | - Ilmar Alves Lopes
- Faculty of Chemical EngineeringFederal University of Maranhão Avenida dos Portugueses, 1966, Bacanga, São Luís 65080‐805 Brazil
| | | | - Audirene Amorim Santana
- Faculty of Chemical EngineeringFederal University of Maranhão Avenida dos Portugueses, 1966, Bacanga, São Luís 65080‐805 Brazil
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36
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Stubbe B, Graulus GJ, Reekmans G, Courtin T, Martins JC, Van Vlierberghe S, Dubruel P, Adriaensens P. A straightforward method for quantification of vinyl functionalized water soluble alginates via 13C-NMR spectroscopy. Int J Biol Macromol 2019; 134:722-729. [PMID: 31078596 DOI: 10.1016/j.ijbiomac.2019.05.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 01/14/2023]
Abstract
Alginates are fairly abundant in nature and possess many interesting properties, including their biocompatibility and ability to absorb large amounts of water. Hence, increasing interest in their derivatization has been observed and the determination of the number of newly introduced functionalities has become a key issue. For this purpose, literature generally reports on conventional 1H-NMR spectra, typically recorded at elevated temperatures and/or after hydrolysis of the alginate to circumvent line broadening effects resulting from the high viscosity. The present work reports on the modification of alginate with methacrylate functionalities and determination of the resulting degree of substitution (DS), i.e. the number of introduced methacrylate moieties relative to the initial amount of hydroxyl groups along the alginate backbone, via NMR spectroscopy. Freeze-drying and low power water presaturation were applied to improve the quality of the 1H NMR spectra. Nevertheless, it remains a qualitative method, to be used only for mutual comparisons of samples. A new and accurate method for DS determination of methacrylated alginates, based on 13C-NMR spectroscopy, is proposed. Quantitative 13C-NMR spectra were recorded with reduced measuring times by addition of a paramagnetic relaxation agent. The proposed method will also be applicable for other water-soluble functionalized alginates and polysaccharides in general.
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Affiliation(s)
- B Stubbe
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - G-J Graulus
- Biomolecule Design Group, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - G Reekmans
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - T Courtin
- NMR and Structure Analysis Unit, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - J C Martins
- NMR and Structure Analysis Unit, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - P Dubruel
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium.
| | - P Adriaensens
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium.
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37
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Ghosh M, Halperin-Sternfeld M, Grinberg I, Adler-Abramovich L. Injectable Alginate-Peptide Composite Hydrogel as a Scaffold for Bone Tissue Regeneration. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E497. [PMID: 30939729 PMCID: PMC6523611 DOI: 10.3390/nano9040497] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/17/2019] [Accepted: 03/23/2019] [Indexed: 12/19/2022]
Abstract
The high demand for tissue engineering scaffolds capable of inducing bone regeneration using minimally invasive techniques prompts the need for the development of new biomaterials. Herein, we investigate the ability of Alginate incorporated with the fluorenylmethoxycarbonyl-diphenylalanine (FmocFF) peptide composite hydrogel to serve as a potential biomaterial for bone regeneration. We demonstrate that the incorporation of the self-assembling peptide, FmocFF, in sodium alginate leads to the production of a rigid, yet injectable, hydrogel without the addition of cross-linking agents. Scanning electron microscopy reveals a nanofibrous structure which mimics the natural bone extracellular matrix. The formed composite hydrogel exhibits thixotropic behavior and a high storage modulus of approximately 10 kPA, as observed in rheological measurements. The in vitro biocompatibility tests carried out with MC3T3-E1 preosteoblast cells demonstrate good cell viability and adhesion to the hydrogel fibers. This composite scaffold can induce osteogenic differentiation and facilitate calcium mineralization, as shown by Alizarin red staining, alkaline phosphatase activity and RT-PCR analysis. The high biocompatibility, excellent mechanical properties and similarity to the native extracellular matrix suggest the utilization of this hydrogel as a temporary three-dimensional cellular microenvironment promoting bone regeneration.
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Affiliation(s)
- Moumita Ghosh
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
| | - Michal Halperin-Sternfeld
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
| | - Itzhak Grinberg
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
| | - Lihi Adler-Abramovich
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
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38
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Li J, Cai C, Yang C, Li J, Sun T, Yu G. Recent Advances in Pharmaceutical Potential of Brown Algal Polysaccharides and their Derivatives. Curr Pharm Des 2019; 25:1290-1311. [PMID: 31237200 DOI: 10.2174/1381612825666190618143952] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/31/2019] [Indexed: 02/07/2023]
Abstract
Marine plants, animals and microorganisms display steady growth in the ocean and are abundant carbohydrate resources. Specifically, natural polysaccharides obtained from brown algae have been drawing increasing attention owing to their great potential in pharmaceutical applications. This review describes the structural and biological features of brown algal polysaccharides, including alginates, fucoidans, and laminarins, and it highlights recently developed approaches used to obtain the oligo- and polysaccharides with defined structures. Functional modification of these polysaccharides promotes their advanced applications in biomedical materials for controlled release and targeted drug delivery, etc. Moreover, brown algal polysaccharides and their derivatives possess numerous biological activities with anticancer, anticoagulant, wound healing, and antiviral properties. In addition, we also discuss carbohydrate- based substrates from brown algae, which are currently in clinical and preclinical studies, as well as the marine drugs that are already on the market. The present review summarizes the recent development in carbohydratebased products from brown algae, with promising findings that could rapidly facilitate the future discovery of novel marine drugs.
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Affiliation(s)
- Jun Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Chao Cai
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| | - Chendong Yang
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jianghua Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Tiantian Sun
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
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39
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Shaaban IA. Conformational analysis, infrared/Raman spectral assignment, and electronic structural studies of 1,3-dimethyl-2-imidazolidinone using quantum chemical calculations. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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40
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Mohammadi S, Ramakrishna S, Laurent S, Shokrgozar MA, Semnani D, Sadeghi D, Bonakdar S, Akbari M. Fabrication of Nanofibrous PVA/Alginate-Sulfate Substrates for Growth Factor Delivery. J Biomed Mater Res A 2018; 107:403-413. [DOI: 10.1002/jbm.a.36552] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/02/2018] [Accepted: 08/29/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Sajjad Mohammadi
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering; University of Victoria; Victoria V8P 5C2 Canada
- National Cell Bank Department; Pasteur Institute of Iran; Tehran 13164 Iran
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering; National University of Singapore; Engineering Drive 3, 117576 Singapore
- Institute of CNS Regeneration; Jinan University; Guangzhou China
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory, Department of General; Organic and Biomedical Chemistry, University of Mons; 23 Place du Parc, B-7000 Mons Belgium
- Center for Microscopy and Molecular Imaging (CMMI); Rue Adrienne Bolland, 8, B-6041 Gosselies, Belgium
| | | | - Dariush Semnani
- Department of Textile Engineering; Isfahan University of Technology; Isfahan 84156-83111 Iran
| | - Davoud Sadeghi
- Department of Biomedical Engineering; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Shahin Bonakdar
- National Cell Bank Department; Pasteur Institute of Iran; Tehran 13164 Iran
| | - Mohsen Akbari
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering; University of Victoria; Victoria V8P 5C2 Canada
- Center for Biomedical Research; University of Victoria; Victoria V8P 5C2 Canada
- Center for Advanced Materials and Related Technology (CAMTEC); University of Victoria; Victoria V8P 5C2 Canada
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41
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Formica FA, Cavalli E, Broguiere N, Zenobi-Wong M. Cell-Instructive Alginate Hydrogels Targeting RhoA. Bioconjug Chem 2018; 29:3042-3053. [DOI: 10.1021/acs.bioconjchem.8b00436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florian A. Formica
- Tissue Engineering & Biofabrication, Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zürich (ETH Zürich), Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Emma Cavalli
- Tissue Engineering & Biofabrication, Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zürich (ETH Zürich), Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Nicolas Broguiere
- Tissue Engineering & Biofabrication, Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zürich (ETH Zürich), Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering & Biofabrication, Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zürich (ETH Zürich), Otto-Stern-Weg 7, 8093 Zürich, Switzerland
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42
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Belik AA, Silchenko AS, Kusaykin MI, Zvyagintseva TN, Ermakova SP. Alginate Lyases: Substrates, Structure, Properties, and Prospects of Application. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162018040040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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43
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Miao T, Wang J, Zeng Y, Liu G, Chen X. Polysaccharide-Based Controlled Release Systems for Therapeutics Delivery and Tissue Engineering: From Bench to Bedside. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700513. [PMID: 29721408 PMCID: PMC5908359 DOI: 10.1002/advs.201700513] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/19/2017] [Indexed: 05/08/2023]
Abstract
Polysaccharides or polymeric carbohydrate molecules are long chains of monosaccharides that are linked by glycosidic bonds. The naturally based structural materials are widely applied in biomedical applications. This article covers four different types of polysaccharides (i.e., alginate, chitosan, hyaluronic acid, and dextran) and emphasizes their chemical modification, preparation approaches, preclinical studies, and clinical translations. Different cargo fabrication techniques are also presented in the third section. Recent progresses in preclinical applications are then discussed, including tissue engineering and treatment of diseases in both therapeutic and monitoring aspects. Finally, clinical translational studies with ongoing clinical trials are summarized and reviewed. The promise of new development in nanotechnology and polysaccharide chemistry helps clinical translation of polysaccharide-based drug delivery systems.
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Affiliation(s)
- Tianxin Miao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- School of Chemical & Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGA30332USA
| | - Junqing Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- Collaborative Innovation Center of Guangxi Biological Medicine and theMedical and Scientific Research CenterGuangxi Medical UniversityNanning530021China
| | - Yun Zeng
- Department of PharmacologyXiamen Medical CollegeXiamen361008China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen361102China
- State Key Laboratory of Cellular Stress BiologyInnovation Center for Cell BiologySchool of Life SciencesXiamen UniversityXiamen361102China
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The MOE Key Laboratory of Spectrochemical Analysis & InstrumentationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and NanomedicineNational Institute of Biomedical Imaging and BioengineeringNational Institutes of HealthBethesdaMD20892USA
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44
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Agnello S, Palumbo FS, Pitarresi G, Fiorica C, Giammona G. Synthesis and evaluation of thermo-rheological behaviour and ionotropic crosslinking of new gellan gum-alkyl derivatives. Carbohydr Polym 2018; 185:73-84. [PMID: 29421062 DOI: 10.1016/j.carbpol.2018.01.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 01/05/2018] [Accepted: 01/05/2018] [Indexed: 12/22/2022]
Abstract
This paper reports the synthesis and the physicochemical characterization of two series of gellan gum (GG) derivatives functionalized with alkyl chains with different number of carbon, from 8 to 18. In particular, low molecular weight gellan gum samples with 52.6 or 96.7 kDa, respectively, were functionalized with octylamine (C8), dodecylamine (C12) and octadecylamine (C18) by using bis(4-nitrophenyl) carbonate (4-NPBC) as a coupling agent. Thermo-rheological and ionotropic crosslinking properties of these gellan gum-alkyl derivatives were evaluated and related to the degree of derivatization in alkyl chains. Results suggested as length and degree of derivatization differently influenced coil-to-helix gelation mechanism of GG derivatives, ionotropic crosslinking, and strength of crosslinked hydrogels obtained in CaCl2 0.102 M and NaCl 0.15 M. Statement of hypothesis: The insertion of alkyl chains on the gellan gum backbone interferes with coil-to-helix transition mechanism and allows the production of hydrophobically assembled hydrogels.
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Affiliation(s)
- Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Fabio Salvatore Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy; Mediterranean Center of Human Health Advanced Biotechnologies (CHAB), AteN Center, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy; Institute of Biophysics at Palermo, Italian National Research Council, Via Ugo La Malfa 153, 90146 Palermo, Italy.
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45
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Feng M, Gu C, Bao C, Chen X, Yan H, Shi Z, Liu X, Lin Q. Synthesis of a benzyl-grafted alginate derivative and its effect on the colloidal stability of nanosized titanium dioxide aqueous suspensions for Pickering emulsions. RSC Adv 2018; 8:34397-34407. [PMID: 35548610 PMCID: PMC9086954 DOI: 10.1039/c8ra04300k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/21/2018] [Indexed: 12/26/2022] Open
Abstract
TiO2 nanoparticles (nano-TiO2) as one of the most extensively used nanoscale materials easily undergo spontaneous aggregation and gravity sedimentation ascribed to their high adsorption energy, which significantly restricts their actual applications. For this reason, a benzyl-grafted alginate derivative (BAD) with good colloidal interface activity, prepared by a bimolecular nucleophilic substitution (SN2) reaction, was used as the dispersant to stabilize nano-TiO2. The structure and colloidal properties of BAD was evaluated by FT-IR spectroscopy, 1H NMR spectroscopy, thermal gravimetric analysis (TGA) and dynamic light scattering (DLS). The effects of pH and ionic strength on the dispersion stability of BAD/nano-TiO2 suspensions were also examined by DLS. To further probe its feasibility as a drug delivery system, the BAD/nano-TiO2 complex was applied as particulate emulsifiers to fabricate drug-loaded Pickering emulsions. Meanwhile, the morphology properties and the sustained release performance of the drug-loaded Pickering emulsions were also investigated. Experimental results showed that the adsorption of BAD on nano-TiO2 was achieved by an intermolecular hydrogen bond between the carboxylic functional groups of BAD and the Ti–OH of TiO2. The adsorption of BAD enhanced the electrostatic repulsion and steric hindrance between nano-TiO2 improving the dispersion stability of nano-TiO2 at different pH and ionic strength. Additionally, the obtained Pickering emulsions displayed good drug-loading capacity and sustained release performance with the release mechanism of non-Fickian transport, which exhibited great potential in the pharmaceutical field. TiO2 nanoparticles (nano-TiO2) easily undergo spontaneous aggregation and gravity sedimentation ascribed to their high adsorption energy, which significantly restrict their actual applications.![]()
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Affiliation(s)
- Meixi Feng
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Chuanhai Gu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Chaoling Bao
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Xiuqiong Chen
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Huiqiong Yan
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Zaifeng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Xiaohong Liu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
| | - Qiang Lin
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
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46
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Pérez-Madrigal MM, Torras J, Casanovas J, Häring M, Alemán C, Díaz DD. Paradigm Shift for Preparing Versatile M2+-Free Gels from Unmodified Sodium Alginate. Biomacromolecules 2017; 18:2967-2979. [DOI: 10.1021/acs.biomac.7b00934] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Maria M. Pérez-Madrigal
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
| | | | - Jordi Casanovas
- Departament
de Química, EPS, Universitat de Lleida, Jaume II 69, 25001 Lleida, Spain
| | - Marleen Häring
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
| | | | - David Díaz Díaz
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
- IQAC−CSIC, Jordi Girona 18-26, E-08034 Barcelona, Spain
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47
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Passemard S, Szabó L, Noverraz F, Montanari E, Gonelle-Gispert C, Bühler LH, Wandrey C, Gerber-Lemaire S. Synthesis Strategies to Extend the Variety of Alginate-Based Hybrid Hydrogels for Cell Microencapsulation. Biomacromolecules 2017; 18:2747-2755. [PMID: 28742341 DOI: 10.1021/acs.biomac.7b00665] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The production of hydrogel microspheres (MS) for cell immobilization, maintaining the favorable properties of alginate gels but presenting enhanced performance in terms of in vivo durability and physical properties, is desirable to extend the therapeutic potential of cell transplantation. A novel type of hydrogel MS was produced by straightforward functionalization of sodium alginate (Na-alg) with heterotelechelic poly(ethylene glycol) (PEG) derivatives equipped with either end thiol or 1,2-dithiolane moieties. Activation of the hydroxyl moieties of the alginate backbone in the form of imidazolide intermediate allowed for fast conjugation to PEG oligomers through a covalent carbamate linkage. Evaluation of the modified alginates for the preparation of MS combining fast ionic gelation ability of the alginate carboxylate groups and slow covalent cross-linking provided by the PEG-end functionalities highlighted the influence of the chemical composition of the PEG-grafting units on the physical characteristics of the MS. The mechanical properties of the MS (resistance and shape recovery) and durability of PEG-grafted alginates in physiological environment can be adjusted by varying the nature of the end functionalities and the length of the PEG chains. In vitro cell microencapsulation studies and preliminary in vivo assessment suggested the potential of these hydrogels for cell transplantation applications.
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Affiliation(s)
- Solène Passemard
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LSPN, Station 6, CH-1015 Lausanne, Switzerland
| | - Luca Szabó
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LSPN, Station 6, CH-1015 Lausanne, Switzerland
| | - François Noverraz
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LSPN, Station 6, CH-1015 Lausanne, Switzerland
| | - Elisa Montanari
- University Hospital of Geneva, Surgical Research Unit , CMU-1, rue Gabrielle-Perret-Gentil, CH-1211 Geneva, Switzerland
| | - Carmen Gonelle-Gispert
- University Hospital of Geneva, Surgical Research Unit , CMU-1, rue Gabrielle-Perret-Gentil, CH-1211 Geneva, Switzerland
| | - Léo H Bühler
- University Hospital of Geneva, Surgical Research Unit , CMU-1, rue Gabrielle-Perret-Gentil, CH-1211 Geneva, Switzerland
| | - Christine Wandrey
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LSPN, Station 6, CH-1015 Lausanne, Switzerland
| | - Sandrine Gerber-Lemaire
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LSPN, Station 6, CH-1015 Lausanne, Switzerland
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48
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Sang Z, Zhang W, Zhou Z, Fu H, Tan Y, Sui K, Xia Y. Functionalized alginate with liquid-like behaviors and its application in wet-spinning. Carbohydr Polym 2017; 174:933-940. [PMID: 28821150 DOI: 10.1016/j.carbpol.2017.07.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/14/2017] [Accepted: 07/09/2017] [Indexed: 12/24/2022]
Abstract
Alginate is a kind of marine-derived plant polysaccharide with useful properties including inherent flame-retardancy and biocompatibility, yet poor flowability and low processing efficiency induced by high viscosity impede its further industrial applications. In this study, PEG-substituted tertiary amines were adapted to functionalize alginate with different molecular weight via acid-base reaction to improve the flowability. Based on alginate with low molecular weight, alginate fluids exhibited excellent flowability at room temperature in the absence of solvent. For alginate with high molecular weight, gelatinous precipitated phase exhibited significant shear-thinning properties and higher solid content despite lack of solvent-free flowability, which was applied to wet-spinning. The alginate fibers exhibited increased tensile strength by 104% and elongation at break by 132% compared with conventional alginate fibers, and the spinning efficiency was significantly improved. The proposed strategy is expected to extend to highly efficient processing of other polysaccharides to obtain high-performance biomedical materials.
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Affiliation(s)
- Zhen Sang
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Wenqian Zhang
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | | | - Huakang Fu
- Zhejiang Juhua Research Institute of New Materials Co. Ltd., Hangzhou 310027, China
| | - Yeqiang Tan
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Kunyan Sui
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Yanzhi Xia
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
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49
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Synthesis and characterization of alginic acid ester derivatives. Carbohydr Polym 2017; 171:229-235. [PMID: 28578958 DOI: 10.1016/j.carbpol.2017.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/14/2017] [Accepted: 05/01/2017] [Indexed: 11/20/2022]
Abstract
Esters derivatives of alginic acid (Alg) were prepared in carboxylic acid/carboxylic acid anhydrides system by using aqueous perchloric acid as the catalyst. Degree of substitution of hydroxyl group of Alg was estimated to be 2, showing that the hydroxyl group of Alg was fully esterified. Alg acid esters showed the solubility to common organic solvents such as acetone and chloroform. In particular, alginic acid hexanoate formed self-standing solvent-cast film, although the film showed brittle mechanical behavior. Furthermore, Alg esters showed glass transition temperature (Tg) in a temperature range between 100 and 200°C, that is in the same range as the conventional synthetic amorphous polymers. It was also shown that the Tg gradually lowered with the increasing acyl side chain length. These results show that Alg esters are plastic materials with tunable organosolubility and thermal properties.
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50
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Agnello S, Gasperini L, Mano JF, Pitarresi G, Palumbo FS, Reis RL, Giammona G. Synthesis, mechanical and thermal rheological properties of new gellan gum derivatives. Int J Biol Macromol 2017; 98:646-653. [PMID: 28189790 DOI: 10.1016/j.ijbiomac.2017.02.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/27/2017] [Accepted: 02/07/2017] [Indexed: 12/19/2022]
Abstract
New derivatives of gellan gum (GG) were prepared by covalent attachment of octadecylamine (C18-NH2) to polysaccharide backbone via amide linkage by using bis(4-nitrophenyl) carbonate (4-NPBC) as a coupling agent. The effect of the alkyl chain grafted onto hydrophilic backbone of high molecular weight GG was investigated in terms of physicochemical properties and ability of new derivatives to form hydrogels. A series of hydrogels was obtained in solutions with different kind and concentration of ions and their stability and mechanical properties were evaluated. The obtained derivatives resulted soluble at temperature lower than starting GG and physicochemical properties of obtained hydrogels suggested their potential use in biomedical field.
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Affiliation(s)
- Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Luca Gasperini
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal; Department of Chemistry, CICECO, Aveiro Institute of Materials, University of Aveiro, 2810-193, Aveiro, Portugal
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy.
| | - Fabio S Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy; Institute of Biophysics at Palermo, Italian National Research Council, Via Ugo La Malfa 153, 90146, Palermo, Italy
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