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Bu Y, Chen X, Wu T, Zhang R, Yan H, Lin Q. Synthesis, Optimization and Molecular Self-Assembly Behavior of Alginate-g-Oleylamine Derivatives Based on Ugi Reaction for Hydrophobic Drug Delivery. Int J Mol Sci 2024; 25:8551. [PMID: 39126119 PMCID: PMC11313573 DOI: 10.3390/ijms25158551] [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: 07/09/2024] [Revised: 08/02/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024] Open
Abstract
To achieve the optimal alginate-based oral formulation for delivery of hydrophobic drugs, on the basis of previous research, we further optimized the synthesis process parameters of alginate-g-oleylamine derivatives (Ugi-FOlT) and explored the effects of different degrees of substitution (DSs) on the molecular self-assembly properties of Ugi-FOlT, as well as the in vitro cytotoxicity and drug release behavior of Ugi-FOlT. The resultant Ugi-FOlT exhibited good amphiphilic properties with the critical micelle concentration (CMC) ranging from 0.043 mg/mL to 0.091 mg/mL, which decreased with the increase in the DS of Ugi-FOlT. Furthermore, Ugi-FOlT was able to self-assemble into spherical micellar aggregates in aqueous solution, whose sizes and zeta potentials with various DSs measured by dynamic light scattering (DLS) were in the range of 653 ± 25~710 ± 40 nm and -58.2 ± 1.92~-48.9 ± 2.86 mV, respectively. In addition, RAW 264.7 macrophages were used for MTT assay to evaluate the in vitro cytotoxicity of Ugi-FOlT in the range of 100~500 μg/mL, and the results indicated good cytocompatibility for Ugi-FOlT. Ugi-FOlT micellar aggregates with favorable stability also showed a certain sustained and pH-responsive release behavior for the hydrophobic drug ibuprofen (IBU). Meanwhile, it is feasible to control the drug release rate by regulating the DS of Ugi-FOlT. The influence of different DSs on the properties of Ugi-FOlT is helpful to fully understand the relationship between the micromolecular structure of Ugi-FOlT and its macroscopic properties.
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Affiliation(s)
- Yanan Bu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - 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; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Ting Wu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Ruolin Zhang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.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; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
- Key Laboratory of Natural Polymer Functional Material of Haikou City, 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; (Y.B.); (X.C.); (T.W.); (R.Z.); (Q.L.)
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
- Key Laboratory of Natural Polymer Functional Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
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Neves MI, Magalhães MV, Bidarra SJ, Moroni L, Barrias CC. Versatile click alginate hydrogels with protease-sensitive domains as cell responsive/instructive 3D microenvironments. Carbohydr Polym 2023; 320:121226. [PMID: 37659815 DOI: 10.1016/j.carbpol.2023.121226] [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: 05/05/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 09/04/2023]
Abstract
Alginate (ALG) is a widely used biomaterial to create artificial extracellular matrices (ECM) for tissue engineering. Since it does not degrade in the human body, imparting proteolytic sensitivity to ALG hydrogels leverages their properties as ECM-mimics. Herein, we explored the strain-promoted azide-alkyne cycloaddition (SPAAC) as a biocompatible and bio-orthogonal click-chemistry to graft cyclooctyne-modified alginate (ALG-K) with bi-azide-functionalized PVGLIG peptides. These are sensitive to matrix metalloproteinase (MMP) and may act as crosslinkers. The ALG-K-PVGLIG conjugates (50, 125, and 250 μM PVGLIG) were characterized for peptide incorporation, crosslinking ability (double-end grafting), and enzymatic liability. For producing cell-permissive multifunctional 3D matrices for dermal fibroblast culture, oxidized ALG-K was grafted with PVGLIG and with RGD peptides for cell-adhesion. SPAAC reactions were performed immediately before cell-laden hydrogel formation by secondary ionic-crosslinking, considerably reducing the steps and time of preparation. Hydrogels with intermediate PVGLIG concentration (125 μM) presented slightly higher stiffness while promoting extensive cell spreading and higher degree of cell-cell interconnections, likely favored by cell-driven proteolytic remodeling of the network. The hydrogel-embedded cells were able to produce their own pericellular ECM, expressed MMP-2 and 14, and secreted PVGLIG-degrading enzymes. By recapitulating key ECM-like features, these hydrogels provide biologically relevant 3D matrices for soft tissue regeneration.
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Affiliation(s)
- Mariana I Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Portugal; FEUP - Faculdade de Engenharia, Universidade do Porto, Portugal.
| | - Mariana V Magalhães
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Portugal; FEUP - Faculdade de Engenharia, Universidade do Porto, Portugal.
| | - Sílvia J Bidarra
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Portugal.
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands; CNR NANOTEC - Institute of Nanotechnology, Università del Salento, Lecce, Italy.
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal.
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Milivojević M, Popović A, Pajić-Lijaković I, Šoštarić I, Kolašinac S, Stevanović ZD. Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications. Gels 2023; 9:620. [PMID: 37623075 PMCID: PMC10454207 DOI: 10.3390/gels9080620] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/26/2023] Open
Abstract
Sodium alginate is one of the most interesting and the most investigated and applied biopolymers due to its advantageous properties. Among them, easy, simple, mild, rapid, non-toxic gelation by divalent cations is the most important. In addition, it is abundant, low-cost, eco-friendly, bio-compatible, bio-adhesive, biodegradable, stable, etc. All those properties were systematically considered within this review. Carotenoids are functional components in the human diet with plenty of health benefits. However, their sensitivity to environmental and process stresses, chemical instability, easy oxidation, low water solubility, and bioavailability limit their food and pharmaceutical applications. Encapsulation may help in overcoming these limitations and within this review, the role of alginate-based encapsulation systems in improving the stability and bioavailability of carotenoids is explored. It may be concluded that all alginate-based systems increase carotenoid stability, but only those of micro- and nano-size, as well as emulsion-based, may improve their low bioaccessibility. In addition, the incorporation of other biopolymers may further improve encapsulation system properties. Furthermore, the main techniques for evaluating the encapsulation are briefly considered. This review critically and profoundly explains the role of alginates in improving the encapsulation process of carotenoids, suggesting the best alternatives for those systems. Moreover, it provides a comprehensive cover of recent advances in this field.
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Affiliation(s)
- Milan Milivojević
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Aleksandra Popović
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Ivana Pajić-Lijaković
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Ivan Šoštarić
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
| | - Stefan Kolašinac
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
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Zhao F, Sharma G, Wangpimool K, Kim JC. Synthesis of hydrophobically modified alginate and hydrophobically modified gelatin containing cubic phase for pH- and salt-responsive release of fructose diphosphate. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-04948-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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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: 30] [Impact Index Per Article: 10.0] [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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Yuan C, Zou Y, Cui B, Fang Y, Lu L, Xu D. Influence of cyclodextrins on the gelation behavior of κ-carrageenan/konjac glucomannan composite gel. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106927] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Khalid A, Asim-Ur-Rehman, Ahmed N, Chaudhery I, Al-Jafary MA, Al-Suhaimi EA, Tarhini M, Lebaz N, Elaissari A. Polysaccharide Chemistry in Drug Delivery, Endocrinology, and Vaccines. Chemistry 2021; 27:8437-8451. [PMID: 33856737 DOI: 10.1002/chem.202100204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 12/26/2022]
Abstract
Polysaccharides, due to their outstanding properties, have attracted the attention of researchers, working in the biomedical field and especially of those working in drug delivery. Modified/functionalized polysaccharides further increase the importance for various applications. Delivery of therapeutics for diverse ailments in different endocrine glands and hormones safely, is a focal point of researchers working in the field. Among the routes followed, the transdermal route is preferred due to non-exposure of active moieties to the harsh gastric environment and first-pass metabolism. This review starts with the overview of polysaccharides used for the delivery of various therapeutic agents. Advantages of polysaccharides used in the transdermal route are addressed in detail. Types of polysaccharides will be elaborated through examples, and in this context, special emphasis will be on the polysaccharides being used for synthesis of the membranes/films. Techniques employed for their modification to design novel carriers for therapeutics delivery will also be discussed. The review will end with a brief discussion on recent developments and future perspectives for delivery of therapeutic agents, and vaccine development.
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Affiliation(s)
- Aimen Khalid
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Asim-Ur-Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Naveed Ahmed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Iqra Chaudhery
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Meneerah A Al-Jafary
- Biology Department, College of Science, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Ebtesam Abdullah Al-Suhaimi
- Biology Department, College of Science, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, LAGEPP-UMR 5007, 69100, Villeurbanne, France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280, 69622, Villeurbanne, France
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Teng K, An Q, Chen Y, Zhang Y, Zhao Y. Recent Development of Alginate-Based Materials and Their Versatile Functions in Biomedicine, Flexible Electronics, and Environmental Uses. ACS Biomater Sci Eng 2021; 7:1302-1337. [PMID: 33764038 DOI: 10.1021/acsbiomaterials.1c00116] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alginate is a natural polysaccharide that is easily chemically modified or compounded with other components for various types of functionalities. The alginate derivatives are appealing not only because they are biocompatible so that they can be used in biomedicine or tissue engineering but also because of the prospering bioelectronics that require various biomaterials to interface between human tissues and electronics or to serve as electronic components themselves. The study of alginate-based materials, especially hydrogels, have repeatedly found new frontiers over recent years. In this Review, we document the basic properties of alginate, their chemical modification strategies, and the recent development of alginate-based functional composite materials. The newly thrived functions such as ionically conductive hydrogel or 3D or 4D cell culturing matrix are emphasized among other appealing potential applications. We expect that the documentation of relevant information will stimulate scientific efforts to further develop biocompatible electronics or smart materials and to help the research domain better address the medicine, energy, and environmental challenges faced by human societies.
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Affiliation(s)
- Kaixuan Teng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yao Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yantao Zhao
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, Beijing 100048, China.,Beijing Engineering Research Center of Orthopedics Implants, Beijing 100048, China
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Lü T, Wu Y, Tao Y, Zhang D, Qi D, Zhao H. Facile synthesis of octyl-modified alginate for oil-water emulsification. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04745-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Banks SR, Enck K, Wright M, Opara EC, Welker ME. Chemical Modification of Alginate for Controlled Oral Drug Delivery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10481-10488. [PMID: 31433940 PMCID: PMC6905053 DOI: 10.1021/acs.jafc.9b01911] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Here, we report two methods that chemically modify alginate to achieve neutral-basic pH sensitivity of the resultant hydrogel. The first method involves direct amide bond formation between alginate and 4-(2-aminoethyl)benzoic acid. The second method that arose out of the desire to achieve better control of the degradation rate of the alginate hydrogel involves reductive amination of oxidized alginate. The products of both methods result in a hydrogel vehicle for targeted delivery of encapsulated payload under physiological conditions in the gastrointestinal tract. Two-dimensional diffusion-ordered spectroscopy and internal and coaxial external nuclear magnetic resonance standards were used to establish chemical bonding and percent incorporation of the modifying groups into the alginate polymer. The hydrogel made with alginate modified by each method was found to be completely stable under acidic pH conditions while disintegrating within minutes to hours in neutral-basic pH conditions. We found that, while alginate oxidation did not affect the β-d-mannuronate/α-l-guluronate ratio of alginate, the rate of disintegration of the hydrogel made with oxidized alginate was dependent upon the degree of oxidation.
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Affiliation(s)
- Surya R Banks
- Department of Chemistry , Wake Forest University , 455 Vine Street , Winston-Salem , North Carolina 27101 , United States
| | - Kevin Enck
- Wake Forest Institute for Regenerative Medicine , Wake Forest School of Medicine , Medical Center Boulevard Winston-Salem , North Carolina 27101 , United States
- Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences , Wake Forest School of Medicine , Medical Center Boulevard , Winston-Salem , North Carolina 27157 , United States
| | - Marcus Wright
- Department of Chemistry , Wake Forest University , 455 Vine Street , Winston-Salem , North Carolina 27101 , United States
| | - Emmanuel C Opara
- Wake Forest Institute for Regenerative Medicine , Wake Forest School of Medicine , Medical Center Boulevard Winston-Salem , North Carolina 27101 , United States
- Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences , Wake Forest School of Medicine , Medical Center Boulevard , Winston-Salem , North Carolina 27157 , United States
| | - Mark E Welker
- Department of Chemistry , Wake Forest University , 455 Vine Street , Winston-Salem , North Carolina 27101 , United States
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Park SH, Kim JC. Complexation-responsive monoolein cubic phase containing extract of Bambusae Caulis in Taeniam. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1539986] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Seok Ho Park
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chunchon, Republic of Korea
| | - Jin-Chul Kim
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chunchon, Republic of Korea
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García-Astrain C, Avérous L. Synthesis and evaluation of functional alginate hydrogels based on click chemistry for drug delivery applications. Carbohydr Polym 2018; 190:271-280. [PMID: 29628248 DOI: 10.1016/j.carbpol.2018.02.086] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/01/2018] [Accepted: 02/27/2018] [Indexed: 12/24/2022]
Abstract
Environment-sensitive alginate-based hydrogels for drug delivery applications are receiving increasing attention. However, most work in this field involves traditional cross-linking strategies which led to hydrogels with poor long-term stability. Herein, a series of chemically cross-linked alginate hydrogels was synthesized via click chemistry using Diels-Alder reaction by reacting furan-modified alginate and bifunctional cross-linkers. Alginate was successfully functionalized with furfurylamine. Then, 3D architectures were synthesized with water-soluble bismaleimides. Different substitution degrees were achieved in order to study the effect of alginate modification and the cross-linking extent over the behaviour of the hydrogels. The ensuing hydrogels were analysed in terms of microstructure, swelling, structure modification and rheological behaviour. The materials response to external stimuli such as pH was also investigated, revealing a pulsatile behaviour in a large pH range (1-13) and a clear pH-dependent swelling. Finally, vanillin release studies were conducted to demonstrate the potential of these biobased materials for drug delivery applications.
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Affiliation(s)
- Clara García-Astrain
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, Strasbourg Cedex 2, France
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, Strasbourg Cedex 2, France.
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Joshy K, Susan MA, Snigdha S, Nandakumar K, Laly AP, Sabu T. Encapsulation of zidovudine in PF-68 coated alginate conjugate nanoparticles for anti-HIV drug delivery. Int J Biol Macromol 2018; 107:929-937. [DOI: 10.1016/j.ijbiomac.2017.09.078] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 08/05/2017] [Accepted: 09/18/2017] [Indexed: 01/03/2023]
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Oliveira I, Carvalho AL, Radhouani H, Gonçalves C, Oliveira JM, Reis RL. Promising Biomolecules. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1059:189-205. [PMID: 29736574 DOI: 10.1007/978-3-319-76735-2_8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The osteochondral defect (OD) comprises the articular cartilage and its subchondral bone. The treatment of these lesions remains as one of the most problematic clinical issues, since these defects include different tissues, requiring distinct healing approaches. Among the growing applications of regenerative medicine, clinical articular cartilage repair has been used for two decades, and it is an effective example of translational medicine; one of the most used cell-based repair strategies includes implantation of autologous cells in degradable scaffolds such as alginate, agarose, collagen, chitosan, chondroitin sulfate, cellulose, silk fibroin, hyaluronic acid, and gelatin, among others. Concerning the repair of osteochondral defects, tissue engineering and regenerative medicine started to design single- or bi-phased scaffold constructs, often containing hydroxyapatite-collagen composites, usually used as a bone substitute. Biomolecules such as natural and synthetic have been explored to recreate the cartilage-bone interface through multilayered biomimetic scaffolds. In this chapter, a succinct description about the most relevant natural and synthetic biomolecules used on cartilage and bone repair, describing the procedures to obtain these biomolecules, their chemical structure, common modifications to improve its characteristics, and also their application in the biomedical fields, is given.
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Affiliation(s)
- Isabel Oliveira
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana L Carvalho
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Hajer Radhouani
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Cristiana Gonçalves
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J Miguel Oliveira
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Barco/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomolecules, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Barco/Guimarães, Portugal
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16
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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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17
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Choudhary S, Reck JM, Carr AJ, Bhatia SR. Hydrophobically modified alginate for extended release of pharmaceuticals. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Soumitra Choudhary
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
| | - Jason M. Reck
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
| | - Amanda J. Carr
- Department of Chemistry Stony Brook University Stony Brook NY USA
| | - Surita R. Bhatia
- Department of Chemical Engineering University of Massachusetts Amherst Amherst MA USA
- Department of Chemistry Stony Brook University Stony Brook NY USA
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18
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Wu J, Wu Z, Zhang R, Yuan S, Lu Q, Yu Y. Synthesis and micelle properties of the hydrophobic modified alginate. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1263956] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jie Wu
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
| | - Zongmei Wu
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
| | - Ruling Zhang
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
| | - Shichao Yuan
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
| | - Qingliang Lu
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
| | - Yueqin Yu
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, P. R. China
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19
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Yang L, Guo J, Wu J, Yang Y, Zhang S, Song J, An Q, Gong Y. Preparation and properties of a thin membrane based on sodium alginate grafting acrylonitrile. RSC Adv 2017. [DOI: 10.1039/c7ra08532j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sodium alginate was modified for water resistance with acrylonitrile via by free radical graft copolymerization.
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Affiliation(s)
- Lijun Yang
- Dalian Ploytechnic University
- P. R. China
| | - Jing Guo
- Dalian Ploytechnic University
- P. R. China
- Liaoning Engineering Technology Research Center of Function Fiber and its Composites
- Dalian Ploytechnic University
- Dalian 116034
| | - Jing Wu
- Dalian Ploytechnic University
- P. R. China
| | | | - Sen Zhang
- Dalian Ploytechnic University
- P. R. China
| | | | - Qingda An
- Dalian Ploytechnic University
- P. R. China
| | - Yumei Gong
- Dalian Ploytechnic University
- P. R. China
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20
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Galactosylated alginate-curcumin micelles for enhanced delivery of curcumin to hepatocytes. Int J Biol Macromol 2016; 86:1-9. [DOI: 10.1016/j.ijbiomac.2016.01.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/09/2016] [Accepted: 01/10/2016] [Indexed: 12/28/2022]
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21
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Synthesis of amphiphilic alginate derivatives and electrospinning blend nanofibers: a novel hydrophobic drug carrier. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1455-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Yu Y, Leng C, Liu Z, Jia F, Zheng Y, Yuan K, Yan S. Preparation and characterization of biosurfactant based on hydrophobically modified alginate. COLLOID JOURNAL 2014. [DOI: 10.1134/s1061933x14050160] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Stoppel WL, White JC, Horava SD, Henry AC, Roberts SC, Bhatia SR. Terminal sterilization of alginate hydrogels: efficacy and impact on mechanical properties. J Biomed Mater Res B Appl Biomater 2014; 102:877-84. [PMID: 24259507 PMCID: PMC8218599 DOI: 10.1002/jbm.b.33070] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 09/21/2013] [Accepted: 10/20/2013] [Indexed: 11/08/2022]
Abstract
Terminal, or postprocessing, sterilization of composite biomaterials is crucial for their use in wound healing and tissue-engineered devices. Recent research has focused on optimizing traditional biomaterial formulations to create better products for commercial and academic use which incorporate hydrophobic compounds or secondary gel networks. To use a hydrogel in a clinical setting, terminal sterilization is necessary to ensure patient safety. Lyophilization, gamma-irradiation, and ethylene oxide treatment all have negative consequences when applied to alginate scaffolds for clinical use. Here, we aim to find alternative terminal sterilization methods for alginate and alginate-based composite hydrogels which maintain the structure of composite alginate networks for use in biomedical applications. A thorough investigation of the effect of common sterilization methods on swollen alginate-based hydrogels has not been reported and therefore, this work examines autoclaving, ethanol washing, and ultraviolet light as sterilization techniques for alginate and alginate/Pluronic® F68 composite hydrogels. Preservation of structural integrity is evaluated using shear rheology and analysis of water retention, and efficacy of sterilization is determined via bacterial persistence within the hydrogel. Results indicate that ethanol sterilization is the best method of those investigated because ethanol washing results in minimal effects on mechanical properties and water retention and eliminates bacterial persistence. Furthermore, this study suggests that ethanol treatment is an efficacious method for terminally sterilizing interpenetrating networks or other composite hydrogel systems.
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Affiliation(s)
- Whitney L Stoppel
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts, 01003
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24
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Kjøniksen AL, Calejo MT, Zhu K, Nyström B, Sande SA. Stabilization of pluronic gels in the presence of different polysaccharides. J Appl Polym Sci 2014. [DOI: 10.1002/app.40465] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna-Lena Kjøniksen
- Department of Pharmacy; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
- Faculty of Engineering; Østfold University College; P.O. Box 700, N-1757 Halden Norway
| | - Maria Teresa Calejo
- Department of Pharmacy; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
- Department of Electronics and Communications Engineering; Tampere University of Technology; FI-33101 Tampere Finland
| | - Kaizheng Zhu
- Department of Chemistry; University of Oslo; Blindern N-0315 Oslo Norway
| | - Bo Nyström
- Department of Chemistry; University of Oslo; Blindern N-0315 Oslo Norway
| | - Sverre Arne Sande
- Department of Pharmacy; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
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25
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Javvaji V, Dowling MB, Oh H, White IM, Raghavan SR. Reversible gelation of cells using self-assembling hydrophobically-modified biopolymers: towards self-assembly of tissue. Biomater Sci 2014; 2:1016-1023. [DOI: 10.1039/c4bm00017j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Dey S, Sreenivasan K. Conjugation of curcumin onto alginate enhances aqueous solubility and stability of curcumin. Carbohydr Polym 2013; 99:499-507. [PMID: 24274536 DOI: 10.1016/j.carbpol.2013.08.067] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/12/2013] [Accepted: 08/23/2013] [Indexed: 11/27/2022]
Abstract
Curcumin is a potential drug for various diseases including cancer. Prime limitations associated with curcumin are low water solubility, rapid hydrolytic degradation and poor bioavailability. In order to redress these issues we developed Alginate-Curcumin (Alg-Ccm) conjugate which was characterized by FTIR and (1)H NMR spectroscopy. The conjugate self-assembled in aqueous solution forming micelles with an average hydrodynamic diameter of 459 ± 0.32 nm and negative zeta potential. The spherical micelles were visualized by TEM. The critical micelle concentration (CMC) of Alg-Ccm conjugate was determined. A significant enhancement in the aqueous solubility of curcumin was observed upon conjugation with alginate. Formation of micelles improved the stability of curcumin in water at physiological pH. The cytotoxic activity of Alg-Ccm was quantified by MTT assay using L-929 fibroblast cells and it was found to be potentially cytotoxic. Hence, Alg-Ccm could be a promising drug conjugate as well as a nanosized delivery vehicle.
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Affiliation(s)
- Soma Dey
- Laboratory for Polymer Analysis, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojapura, Trivandrum 695012, India
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27
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Yang JS, Yang L. Preparation and application of cyclodextrin immobilized polysaccharides. J Mater Chem B 2013; 1:909-918. [DOI: 10.1039/c2tb00107a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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28
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Alginate derivatization: A review of chemistry, properties and applications. Biomaterials 2012; 33:3279-305. [DOI: 10.1016/j.biomaterials.2012.01.007] [Citation(s) in RCA: 983] [Impact Index Per Article: 81.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 01/04/2012] [Indexed: 12/14/2022]
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29
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Tallury SS, Smyth MB, Cakmak E, Pasquinelli MA. Molecular Dynamics Simulations of Interactions between Polyanilines in Their Inclusion Complexes with β-Cyclodextrins. J Phys Chem B 2012; 116:2023-30. [DOI: 10.1021/jp206745q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Syamal S. Tallury
- Fiber and
Polymer Science, North Carolina State University, Raleigh, North Carolina 27695, United States
- Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina
27695, United States
| | - Margaret B. Smyth
- Textile
Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Enes Cakmak
- Fiber and
Polymer Science, North Carolina State University, Raleigh, North Carolina 27695, United States
- Textile Engineering, Suleyman Demirel University, Isparta, Turkey
| | - Melissa A. Pasquinelli
- Fiber and
Polymer Science, North Carolina State University, Raleigh, North Carolina 27695, United States
- Textile
Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
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30
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Rheology and nanostructure of hydrophobically modified alginate (HMA) gels and solutions. Carbohydr Polym 2012; 87:524-530. [DOI: 10.1016/j.carbpol.2011.08.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 08/04/2011] [Accepted: 08/05/2011] [Indexed: 11/21/2022]
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31
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Pawar SN, Edgar KJ. Chemical Modification of Alginates in Organic Solvent Systems. Biomacromolecules 2011; 12:4095-103. [DOI: 10.1021/bm201152a] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Siddhesh N. Pawar
- Macromolecules and Interfaces Institute
Department
of Wood Science and Forest Products Institute for Critical Technology
and Applied Science, Virginia Tech, Blacksburg,
Virginia 24061, United States
| | - Kevin J. Edgar
- Macromolecules and Interfaces Institute
Department
of Wood Science and Forest Products Institute for Critical Technology
and Applied Science, Virginia Tech, Blacksburg,
Virginia 24061, United States
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32
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Yang JS, Ren HB, Xie YJ. Synthesis of Amidic Alginate Derivatives and Their Application in Microencapsulation of λ-Cyhalothrin. Biomacromolecules 2011; 12:2982-7. [DOI: 10.1021/bm200571k] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji Sheng Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Hai Bing Ren
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ying Jian Xie
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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33
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34
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35
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Oertel U, Komber H, Tenkovtsev AV, Dudkina MM, Trofimov AE, Böhme F. Ionic pseudopolyrotaxanes bearing a chromophore in the side chain – A spectroscopic study in water. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.10.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Karakasyan C, Lack S, Brunel F, Maingault P, Hourdet D. Synthesis and Rheological Properties of Responsive Thickeners Based on Polysaccharide Architectures. Biomacromolecules 2008; 9:2419-29. [DOI: 10.1021/bm800393s] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Karakasyan
- Physico-Chimie des Polymères et des Milieux Dispersés, UMR 7615, UPMC-CNRS-ESPCI, 10 rue Vauquelin, 75005 Paris, France, and Laboratoires Brothier, Z.A. B.P. 26, 49590 Fontevraud L’Abbaye, France
| | - S. Lack
- Physico-Chimie des Polymères et des Milieux Dispersés, UMR 7615, UPMC-CNRS-ESPCI, 10 rue Vauquelin, 75005 Paris, France, and Laboratoires Brothier, Z.A. B.P. 26, 49590 Fontevraud L’Abbaye, France
| | - F. Brunel
- Physico-Chimie des Polymères et des Milieux Dispersés, UMR 7615, UPMC-CNRS-ESPCI, 10 rue Vauquelin, 75005 Paris, France, and Laboratoires Brothier, Z.A. B.P. 26, 49590 Fontevraud L’Abbaye, France
| | - P. Maingault
- Physico-Chimie des Polymères et des Milieux Dispersés, UMR 7615, UPMC-CNRS-ESPCI, 10 rue Vauquelin, 75005 Paris, France, and Laboratoires Brothier, Z.A. B.P. 26, 49590 Fontevraud L’Abbaye, France
| | - D. Hourdet
- Physico-Chimie des Polymères et des Milieux Dispersés, UMR 7615, UPMC-CNRS-ESPCI, 10 rue Vauquelin, 75005 Paris, France, and Laboratoires Brothier, Z.A. B.P. 26, 49590 Fontevraud L’Abbaye, France
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37
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Taura D, Hashidzume A, Okumura Y, Harada A. Cooperative Complexation of α-Cyclodextrin with Alternating Copolymers of Sodium Maleate and Dodecyl Vinyl Ether with Varying Molecular Weights. Macromolecules 2008. [DOI: 10.1021/ma800026h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daisuke Taura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Yasushi Okumura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
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38
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Taura D, Hashidzume A, Harada A. Macromolecular Recognition: Interaction of Cyclodextrins with an Alternating Copolymer of Sodium Maleate and Dodecyl Vinyl Ether. Macromol Rapid Commun 2007. [DOI: 10.1002/marc.200700548] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Bu H, Naess SN, Beheshti N, Zhu K, Knudsen KD, Kjøniksen AL, Elgsaeter A, Nyström B. Characterization of thermally sensitive interactions in aqueous mixtures of hydrophobically modified hydroxyethylcellulose and cyclodextrins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:9023-9. [PMID: 17014149 DOI: 10.1021/la0608664] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Effects of beta-cyclodextrin (beta-CD) or hydroxypropyl-beta-cyclodextrin (HP-beta-CD) addition and temperature on thermodynamic, rheological, and structural features of semidilute solutions of hydroxyethylcellulose (HEC) and its hydrophobically modified analogue (HM-HEC) are reported. Differential scanning calorimetric (DSC) measurements revealed a thermally induced crystal melting transition of beta-CD at high concentrations in solutions of HEC and HM-HEC. No transition with HP-beta-CD was observed in aqueous solution. Viscosity results indicated that at a cosolute concentration of 2 mm, the beta-CD units are threaded onto hydrophobic tails of HM-HEC (C16 groups) to form columnar structures. This arrangement is more effective in the encapsulation of the hydrophobic chains than the monomer hydrophobic deactivation accomplished by the HP-beta-CD units. At cosolute concentrations above 8 mm, no further decoupling of the hydrophobic interactions occurs for any of the cosolutes. Small-angle neutron scattering (SANS) experiments on HM-HEC/beta-CD mixtures suggest that the large-scale association structures in HM-HEC/D(2)O solutions are reduced upon addition of beta-CD, and an interesting temperature effect is observed at 2 mm beta-CD addition. At high beta-CD concentrations and low temperatures, the formation of large beta-CD clusters or crystallites generates cross-links in the HEC and HM-HEC networks, resulting in a viscosity enhancement of several orders of magnitude. This strong temperature effect is not reflected in the structural features probed by SANS.
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Affiliation(s)
- Huaitian Bu
- Department of Chemistry, University of Oslo, N-0315 Oslo, Norway
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40
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Interaction of cyclodextrins with side chains of water soluble polymers: A simple model for biological molecular recognition and its utilization for stimuli-responsive systems. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.06.021] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Burckbuchler V, Kjøniksen AL, Galant C, Lund R, Amiel C, Knudsen KD, Nyström B. Rheological and Structural Characterization of the Interactions between Cyclodextrin Compounds and Hydrophobically Modified Alginate. Biomacromolecules 2006; 7:1871-8. [PMID: 16768409 DOI: 10.1021/bm060149o] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Interactions in semidilute solutions of a hydrophobically modified alginate (HM-alginate) in the presence of hydroxypropyl-beta-cyclodextrin (HP-beta-CD) monomer or a beta-cyclodextrin polymer (poly(beta-CD)) have been characterized at different temperatures with the aid of rheology and small-angle neutron scattering (SANS). The viscosity results for the HM-alginate/HP-beta-CD system reveal progressive deactivation of the hydrophobic associations as the concentration of HP-beta-CD increases. For the HM-alginate/poly(beta-CD) system, on the other hand, addition of poly(beta-CD) sets up bridges between adjacent polymer chains and thereby strengthens the associative network. A novel shear-thickening effect is observed at fairly high shear rates for the HM-alginate/poly(beta-CD) system, and this feature is influenced by temperature. Elevated temperature induces higher chain mobility and the formation of weaker network associations. Analyses of the SANS data disclosed that the association strength in HM-alginate/poly(beta-CD) mixtures increases strongly with increasing cosolute concentration, whereas no effect or a moderate weakening of the strength can be traced in HM-alginate/HP-beta-CD solutions upon addition of HP-beta-CD. The value of the correlation length xi is virtually not affected by the addition of cosolute for the HM-alginate/poly(beta-CD) system, whereas the decoupling of hydrophobic moieties of the polymer upon addition of HP-beta-CD gives rise to a smaller value of xi, suggesting that the size of the heterogeneity patches is reduced. The SANS results suggest that compact association structures are formed in the HM-alginate/poly(beta-CD) solutions.
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Affiliation(s)
- Virginie Burckbuchler
- Laboratoire de Recherche sur les Polymères, LRP, C.N.R.S. UMR 7581, 2-8 rue Henri Dunant, F-94320 Thiais, France
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