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Simińska-Stanny J, Nicolas L, Chafai A, Jafari H, Hajiabbas M, Dodi G, Gardikiotis I, Delporte C, Nie L, Podstawczyk D, Shavandi A. Advanced PEG-tyramine biomaterial ink for precision engineering of perfusable and flexible small-diameter vascular constructs via coaxial printing. Bioact Mater 2024; 36:168-184. [PMID: 38463551 PMCID: PMC10924180 DOI: 10.1016/j.bioactmat.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/09/2024] [Accepted: 02/16/2024] [Indexed: 03/12/2024] Open
Abstract
Vascularization is crucial for providing nutrients and oxygen to cells while removing waste. Despite advances in 3D-bioprinting, the fabrication of structures with void spaces and channels remains challenging. This study presents a novel approach to create robust yet flexible and permeable small (600-1300 μm) artificial vessels in a single processing step using 3D coaxial extrusion printing of a biomaterial ink, based on tyramine-modified polyethylene glycol (PEG-Tyr). We combined the gelatin biocompatibility/activity, robustness of PEG-Tyr and alginate with the shear-thinning properties of methylcellulose (MC) in a new biomaterial ink for the fabrication of bioinspired vessels. Chemical characterization using NMR and FTIR spectroscopy confirmed the successful modification of PEG with Tyr and rheological characterization indicated that the addition of PEG-Tyr decreased the viscosity of the ink. Enzyme-mediated crosslinking of PEG-Tyr allowed the formation of covalent crosslinks within the hydrogel chains, ensuring its stability. PEG-Tyr units improved the mechanical properties of the material, resulting in stretchable and elastic constructs without compromising cell viability and adhesion. The printed vessel structures displayed uniform wall thickness, shape retention, improved elasticity, permeability, and colonization by endothelial-derived - EA.hy926 cells. The chorioallantoic membrane (CAM) and in vivo assays demonstrated the hydrogel's ability to support neoangiogenesis. The hydrogel material with PEG-Tyr modification holds promise for vascular tissue engineering applications, providing a flexible, biocompatible, and functional platform for the fabrication of vascular structures.
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Affiliation(s)
- Julia Simińska-Stanny
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
| | - Lise Nicolas
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- European School of Materials Science and Engineering, University of Lorraine, Nancy, France
| | - Adam Chafai
- Université Libre de Bruxelles (ULB), Micro-milli Platform, Avenue F.D. Roosevelt, 50 - CP 165/67, 1050, Brussels, Belgium
| | - Hafez Jafari
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
| | - Maryam Hajiabbas
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- Université Libre de Bruxelles (ULB), Faculté de Médecine, Campus Erasme - CP 611, Laboratory of Pathophysiological and Nutritional Biochemistry, Route de Lennik, 808, 1070, Bruxelles, Belgium
| | - Gianina Dodi
- Faculty of Medical Bioengineering, Grigore T. Popa, University of Medicine and Pharmacy of Iasi, Romania
| | - Ioannis Gardikiotis
- Advanced Research and Development Center for Experimental Medicine, Grigore T. Popa, University of Medicine and Pharmacy of Iasi, Romania
| | - Christine Delporte
- Université Libre de Bruxelles (ULB), Faculté de Médecine, Campus Erasme - CP 611, Laboratory of Pathophysiological and Nutritional Biochemistry, Route de Lennik, 808, 1070, Bruxelles, Belgium
| | - Lei Nie
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- College of Life Science, Xinyang Normal University, Xinyang, China
| | - Daria Podstawczyk
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373, Wroclaw, Poland
| | - Amin Shavandi
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
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2
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Wang M, Yang C, Deng H, Du Y, Xiao L, Shi X. Programmable Electrical Signals Induce Anisotropic Assembly of Multilayer Chitosan Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38317428 DOI: 10.1021/acs.langmuir.3c02639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Multilayer hydrogels are widely used in biomedical-related fields due to their complex and variable spatial structures. Various strategies have been developed for preparing multilayer hydrogels, among which electrically induced self-assembly provides a simple and effective method for multilayer hydrogel fabrication. By application of an oscillatory electrical signal sequence, multilayer hydrogels with distinct boundaries can be formed according to the provided programmable signals. In this work, we establish an electrical field in microfluidics combined with polarized light microscopy for in situ visualization of anisotropic construction of multilayer chitosan hydrogel. The noninvasive, real-time birefringence images allow us to monitor the orientation within the hydrogel in response to electrical signals. An increased birefringence was observed from the solution-gel side to the electrode surface side, and a brief electrical signal interruption did not affect the anisotropic assembly process. This understanding of the oscillatory electrical signal-induced hydrogel anisotropy assembly allows us to fabricate chitosan hydrogels with a complex and spatially varying structure.
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Affiliation(s)
- Manya Wang
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Chen Yang
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Hongbing Deng
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Yumin Du
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Ling Xiao
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
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3
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Jurin FE, Buron CC, Frau E, del Rossi S, Schintke S. The Electrical and Mechanical Characteristics of Conductive PVA/PEDOT:PSS Hydrogel Foams for Soft Strain Sensors. SENSORS (BASEL, SWITZERLAND) 2024; 24:570. [PMID: 38257662 PMCID: PMC10819078 DOI: 10.3390/s24020570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/22/2023] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
Conductive hydrogels are of interest for highly flexible sensor elements. We compare conductive hydrogels and hydrogel foams in view of strain-sensing applications. Polyvinyl alcool (PVA) and poly(3,4-ethylenedioxythiophene (PEDOT:PSS) are used for the formulation of conductive hydrogels. For hydrogel foaming, we have investigated the influence of dodecylbenzenesulfonate (DBSA) as foaming agent, as well as the influence of air incorporation at various mixing speeds. We showed that DBSA acting as a surfactant, already at a concentration of 1.12wt%, efficiently stabilizes air bubbles, allowing for the formulation of conductive PVA and PVA/PEDOT:PSS hydrogel foams with low density (<400 kg/m3) and high water uptake capacity (swelling ratio > 1500%). The resulting Young moduli depend on the air-bubble incorporation from mixing, and are affected by freeze-drying/rehydration. Using dielectric broadband spectroscopy under mechanical load, we demonstrate that PVA/PEDOT:PSS hydrogel foams exhibit a significant decrease in conductivity under mechanical compression, compared to dense hydrogels. The frequency-dependent conductivity of the hydrogels exhibits two plateaus, one in the low frequency range, and one in the high frequency range. We find that the conductivity of the PVA/PEDOT:PSS hydrogels decreases linearly as a function of pressure in each of the frequency regions, which makes the hydrogel foams highly interesting in view of compressive strain-sensing applications.
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Affiliation(s)
- Florian E. Jurin
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté (UBFC), F-25030 Besançon Cedex, France;
| | - Cédric C. Buron
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté (UBFC), F-25030 Besançon Cedex, France;
| | - Eleonora Frau
- Laboratory of Applied NanoSciences (COMATEC-LANS), University of Applied Sciences Western Switzerland (HES-SO), CH-1401 Yverdon-les-Bains, Switzerland
| | - Stefan del Rossi
- Laboratory of Applied NanoSciences (COMATEC-LANS), University of Applied Sciences Western Switzerland (HES-SO), CH-1401 Yverdon-les-Bains, Switzerland
| | - Silvia Schintke
- Laboratory of Applied NanoSciences (COMATEC-LANS), University of Applied Sciences Western Switzerland (HES-SO), CH-1401 Yverdon-les-Bains, Switzerland
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Shmakov SL, Babicheva TS, Kurochkina VA, Lugovitskaya TN, Shipovskaya AB. Structural and Morphological Features of Anisotropic Chitosan Hydrogels Obtained by Ion-Induced Neutralization in a Triethanolamine Medium. Gels 2023; 9:876. [PMID: 37998966 PMCID: PMC10670621 DOI: 10.3390/gels9110876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/22/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023] Open
Abstract
For the first time, anisotropic hydrogel material with a highly oriented structure was obtained by the chemical reaction of polymer-analogous transformation of chitosan glycolate-chitosan base using triethanolamine (TEA) as a neutralizing reagent. Tangential bands or concentric rings, depending on the reaction conditions, represent the structural anisotropy of the hydrogel. The formation kinetics and the ratio of the positions of these periodic structures are described by the Liesegang regularities. Detailed information about the bands is given (formation time, coordinate, width, height, and formation rate). The supramolecular ordering anisotropy of the resulting material was evaluated both by the number of Liesegang bands (up to 16) and by the average values of the TEA diffusion coefficient ((15-153) × 10-10 and (4-33) × 10-10 m2/s), corresponding to the initial and final phase of the experiment, respectively. The minimum chitosan concentration required to form a spatial gel network and, accordingly, a layered anisotropic structure was estimated as 1.5 g/dL. Morphological features of the structural anisotropic ordering of chitosan Liesegang structures are visualized by scanning electron microscopy. The hemocompatibility of the material obtained was tested, and its high sorption-desorption properties were evaluated using the example of loading-release of cholecalciferol (loading degree ~35-45%, 100% desorption within 25-28 h), which was observed for a hydrophobic substance inside a chitosan-based material for the first time.
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Affiliation(s)
- Sergei L. Shmakov
- Chair of Polymers, Institute of Chemistry, Saratov State University, 83 Astrakhanskaya St., 410012 Saratov, Russia (A.B.S.)
| | - Tatiana S. Babicheva
- Chair of Polymers, Institute of Chemistry, Saratov State University, 83 Astrakhanskaya St., 410012 Saratov, Russia (A.B.S.)
| | - Valentina A. Kurochkina
- Chair of Polymers, Institute of Chemistry, Saratov State University, 83 Astrakhanskaya St., 410012 Saratov, Russia (A.B.S.)
| | - Tatiana N. Lugovitskaya
- Institute of New Materials and Technologies, Ural Federal State University, 19 Mira St., 620002 Yekaterinburg, Russia;
| | - Anna B. Shipovskaya
- Chair of Polymers, Institute of Chemistry, Saratov State University, 83 Astrakhanskaya St., 410012 Saratov, Russia (A.B.S.)
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Kumar N, Ghosh B, Kumar A, Koley R, Dhara S, Chattopadhyay S. Multilayered “SMART” hydrogel systems for on-site drug delivery applications. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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6
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Lali Raveendran R, Valsala M, Sreenivasan Anirudhan T. Development of nanosilver embedded injectable liquid crystalline hydrogel from alginate and chitosan for potent antibacterial and anticancer applications. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Indirect Additive Manufacturing: A Valid Approach to Modulate Sorption/Release Profile of Molecules from Chitosan Hydrogels. Polymers (Basel) 2022; 14:polym14132530. [PMID: 35808575 PMCID: PMC9269287 DOI: 10.3390/polym14132530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
This work studied the influence of hydrogel’s physical properties (geometry and hierarchical roughness) on the in vitro sorption/release profiles of molecules. To achieve this goal, chitosan (CS) solutions were cast in 3D-printed (3DP) molds presenting intricate shapes (cubic and half-spherical with/without macro surface roughness) and further immersed in alkaline solutions of NaOH and NaCl. The resulting physically crosslinked hydrogels were mechanically stable in aqueous environments and successfully presented the shapes and geometries imparted by the 3DP molds. Sorption and release profiles were evaluated using methyl orange (MO) and paracetamol (PMOL) as model molecules, respectively. Results revealed that distinct MO sorption/PMOL release profiles were obtained according to the sample’s shape and presence/absence of hierarchical roughness. MO sorption capacity of CS samples presented both dependencies of hierarchical surface and geometry parameters. Hence, cubic samples without a hierarchical surface presented the highest (up to 1.2 × greater) dye removal capacity. Moreover, PMOL release measurements were more dependent on the surface area of hydrogels, where semi-spherical samples with hierarchical roughness presented the fastest (~1.13 × faster) drug delivery profiles. This work demonstrates that indirect 3DP (via fused filament fabrication (FFF) technology) could be a simple strategy to obtain hydrogels with distinct sorption/release profiles.
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8
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Kumar P, Horváth D, Tóth Á. Sol-gel transition programmed self-propulsion of chitosan hydrogel. CHAOS (WOODBURY, N.Y.) 2022; 32:063120. [PMID: 35778152 DOI: 10.1063/5.0097035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Active soft materials exhibit various dynamics ranging from boat pulsation to thin membrane deformation. In the present work, in situ prepared ethanol-containing chitosan gels propel in continuous and intermittent motion. The active life of the organic material loaded to the constant fuel level follows a linear scaling, and its maximal velocity and projection area decrease steeply with chitosan concentration. A thin propelling platelet forms at low polymer content, leading to the suppression of intermittent motion. Moreover, the fast accelerating thin gels can split into a crescent and circular-like shape or fission into multiple asymmetric fragments.
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Affiliation(s)
- Pawan Kumar
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Dezső Horváth
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Ágota Tóth
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
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9
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Lin J, Jiao G, Kermanshahi-pour A. Algal Polysaccharides-Based Hydrogels: Extraction, Synthesis, Characterization, and Applications. Mar Drugs 2022; 20:306. [PMID: 35621958 PMCID: PMC9146341 DOI: 10.3390/md20050306] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
Hydrogels are three-dimensional crosslinked hydrophilic polymer networks with great potential in drug delivery, tissue engineering, wound dressing, agrochemicals application, food packaging, and cosmetics. However, conventional synthetic polymer hydrogels may be hazardous and have poor biocompatibility and biodegradability. Algal polysaccharides are abundant natural products with biocompatible and biodegradable properties. Polysaccharides and their derivatives also possess unique features such as physicochemical properties, hydrophilicity, mechanical strength, and tunable functionality. As such, algal polysaccharides have been widely exploited as building blocks in the fabrication of polysaccharide-based hydrogels through physical and/or chemical crosslinking. In this review, we discuss the extraction and characterization of polysaccharides derived from algae. This review focuses on recent advances in synthesis and applications of algal polysaccharides-based hydrogels. Additionally, we discuss the techno-economic analyses of chitosan and acrylic acid-based hydrogels, drawing attention to the importance of such analyses for hydrogels. Finally, the future prospects of algal polysaccharides-based hydrogels are outlined.
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Affiliation(s)
- Jianan Lin
- Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, 1360 Barrington St., Halifax, NS B3J 1Z1, Canada;
| | - Guangling Jiao
- AKSO Marine Biotech Inc., Suite 3, 1697 Brunswick St., Halifax, NS B3J 2G3, Canada;
| | - Azadeh Kermanshahi-pour
- Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, 1360 Barrington St., Halifax, NS B3J 1Z1, Canada;
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10
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Liu CH, Jiang HT, Wang CH. Fabrication and characterization of a toughened spherical chitosan adsorbent only through physical crosslinking based on mechanism of Chain Rearrangement. RSC Adv 2022; 12:9179-9185. [PMID: 35424873 PMCID: PMC8985190 DOI: 10.1039/d1ra09438f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/22/2022] [Indexed: 01/15/2023] Open
Abstract
Chitosan extracted from natural products has gained tremendous attention in the field of adsorption and separation due to its inherent biocompatibility and potential applications. In this research, we synthesized a new type of spherical chitosan adsorbent (SCA) by controlling the mass transfer rate of the entanglement of the polymer chains in the recombination process. This SCA is a highly crystalline polymer material with outstanding mechanical strength, high adsorption capacity, a porous surface and suitable particle size distribution. The value of the sphericity of attrition of this SCA was 89.8%, which is the same as that of the commercial macroporous resin with a polystyrene matrix. The X-ray diffraction (XRD) patterns and differential scanning calorimetry (DSC) curves showed a significant change from powder to spherical structure and confirmed that the SCA is highly ordered and crystalline. Optical microscopy (OM) and scanning electron microscopy (SEM) demonstrated that the SCA was composed of a tightly stacked fiber structure, indicating the homogeneity of the polymerization. The porous structure of the surface provided a channel for mass transfer, which was indicated by a test of the ion exchange capacity and the adsorption performance of the SCA with Cu(ii) as the adsorbed subject. The adsorption capacity was higher than those of all reported non-composite chitosan materials. Therefore, we have successfully synthesized a completely green, nontoxic and environmentally friendly adsorbing resin equipped with excellent mechanical properties and adsorption capacity for future applications in many new fields.
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Affiliation(s)
- Cai-Hong Liu
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
| | - Hai-Tao Jiang
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
| | - Chun-Hong Wang
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
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11
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Guo X, Huang W, Tong J, Chen L, Shi X. One-step programmable electrofabrication of chitosan asymmetric hydrogels with 3D shape deformation. Carbohydr Polym 2022; 277:118888. [PMID: 34893290 DOI: 10.1016/j.carbpol.2021.118888] [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: 07/29/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 11/02/2022]
Abstract
Programmable asymmetric hydrogels with tunable structure/shape or physical/chemical properties in response to external stimuli show particular significance in smart systems, but there is lack of simple, rapid, and cheap strategy to design such hydrogel systems. Herein, we report a one-step electrodeposition method to construct chitosan asymmetric hydrogels with tunable thickness and pore size that can be conveniently modulated by the process parameters. Our approach greatly simplifies the process of hydrogel preparation with complex shapes and asymmetric structure organization. The formation mechanism of asymmetric structure has been proposed, based on gelation behavior and entanglement of chitosan chains in the hydrogel-solution system under the electric field. By changing the shape of the electrodes, hydrogels with the morphology of strip, tube, flower, etc. can be obtained precisely and conveniently. They can perform programmable 2D to 3D smart dynamic deformation under pH and metal ions stimulation, indicating the broad application potential in soft robot and biosensor areas.
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Affiliation(s)
- Xiaojia Guo
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China; Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Weijuan Huang
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada; College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jun Tong
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China
| | - Lingyun Chen
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China.
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12
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Zhu X, Yang C, Jian Y, Deng H, Du Y, Shi X. Ion-responsive chitosan hydrogel actuator inspired by carrotwood seed pod. Carbohydr Polym 2022; 276:118759. [PMID: 34823783 DOI: 10.1016/j.carbpol.2021.118759] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 12/28/2022]
Abstract
Inspired by the gradient hygroscopic structure of carrotwood seed pod, patterned anisotropic structure was created in polysaccharide hydrogel by an anodic electrical writing process. Locally released Fe2+ was oxidized to Fe3+ and chelated with chitosan chains in the written area, resulting in a gradient structure in the hydrogel. The asymmetrical stress generated by the different swelling of the gradient structure enables the hydrogel to bend autonomously. The hydrogel shows opposite bending in deionized water and NaCl solution. The physicochemical properties of the hydrogel are characterized by tensile test, SEM, EDS, XRD, TGA, DTG and FT-IR. SEM and EDS show that the written hydrogel has a structural gradient and a concentration gradient of Fe3+ vertically. Moreover, anodic electrical writing increases the flexibility of chitosan hydrogel due to decreased crystallinity. This controllable electrical writing technique is convenient to create patterned anisotropic structure and provide a novel design concept for natural hydrogel actuators.
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Affiliation(s)
- Xinyi Zhu
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China
| | - Chen Yang
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China
| | - Yinghao Jian
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China
| | - Hongbing Deng
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China
| | - Yumin Du
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China.
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13
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Lee H, Kang SB, Yoo H, Lee HR, Sun JY. Reversible Crosslinking of Polymer/Metal-Ion Complexes for a Microfluidic Switch. ACS OMEGA 2021; 6:35297-35306. [PMID: 34984261 PMCID: PMC8717383 DOI: 10.1021/acsomega.1c04055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/03/2021] [Indexed: 05/30/2023]
Abstract
The importance of chitosan has been strongly emphasized in literature because this natural polymer could not only remove heavy metal ions in water but also have the potential for recyclability. However, reversible phase transition and its dynamics, which are highlighting areas of a recycle process, have not been studied sufficiently. Here, we present dynamic studies of the dissolution as well as the gelation of a physically crosslinked chitosan hydrogel. Specifically, a one-dimensional gel growth system and an acetate buffer solution were prepared for the precise analysis of the dominant factors affecting a phase transition. The dissolution rate was found to be regulated by three major factors of the pH level, Cu2+, and NO2 -, while the gelation rate was strongly governed by the concentration of OH-. Apart from the gelation rate, the use of Cu2+ led to the rapid realization of gel characteristics. The results here provide strategies for process engineering, ultimately to determine the phase-transition rates. In addition, a microfluidic switch was successfully operated based on a better understanding of the reversible crosslinking of the chitosan hydrogel. Rapid gelation was required to close the channel, and a quick switchover was achieved by a dissolution enhancement strategy. As a result, factors that regulated the rates of gelation or dissolution were found to be useful to operate the fluidic switch.
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Affiliation(s)
- Hojun Lee
- Department of Materials
Science and Engineering, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, 151-744 Seoul, Republic of Korea
| | - Soon-Bo Kang
- Department of Materials
Science and Engineering, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, 151-744 Seoul, Republic of Korea
| | - Hyunjae Yoo
- Department of Materials
Science and Engineering, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, 151-744 Seoul, Republic of Korea
| | - Hae-Ryung Lee
- Department of Materials
Science and Engineering, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, 151-744 Seoul, Republic of Korea
| | - Jeong-Yun Sun
- Department of Materials
Science and Engineering, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, 151-744 Seoul, Republic of Korea
- Research
Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 151-742 Seoul, Republic of Korea
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14
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Kumar P, Sebők D, Kukovecz Á, Horváth D, Tóth Á. Hierarchical Self-Assembly of Metal-Ion-Modulated Chitosan Tubules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12690-12696. [PMID: 34672616 PMCID: PMC8567419 DOI: 10.1021/acs.langmuir.1c02097] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Soft materials such as gels or biological tissues can develop via self-assembly under chemo-mechanical forces. Here, we report the instantaneous formation of soft tubular structures with a two-level hierarchy by injecting a mixture of inorganic salt and chitosan (CS) solution from below into a reactor filled with alkaline solution. Folding and wrinkling instabilities occur on the originally smooth surface controlled by the salt composition and concentration. Liesegang-like precipitation patterns develop on the outer surface on a μm length scale in the presence of calcium chloride, while the precipitate particles are distributed evenly in the bulk as corroborated by X-ray μ-CT. On the other hand, barium hydroxide precipitates out only in the thin outer layer of the CS tubule when barium chloride is introduced into the CS solution. Independent of the concentration of the weakly interacting salt, an electric potential gradient across the CS membrane develops, which vanishes when the pH difference between the two sides of the membrane diminishes.
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Affiliation(s)
- Pawan Kumar
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - Dániel Sebők
- Department
of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - Ákos Kukovecz
- Department
of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - Dezső Horváth
- Department
of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - Ágota Tóth
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
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15
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Fang W, Yang L, Hong L, Hu Q. A chitosan hydrogel sealant with self-contractile characteristic: From rapid and long-term hemorrhage control to wound closure and repair. Carbohydr Polym 2021; 271:118428. [PMID: 34364568 DOI: 10.1016/j.carbpol.2021.118428] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/14/2021] [Accepted: 07/08/2021] [Indexed: 12/20/2022]
Abstract
Emergent and long-term hemorrhage control is requisite and beneficial for reducing global mortality and postoperative complications (e.g., second bleeding and adverse tissue adhesion). Despite recent advance in injectable hydrogels for hemostasis, achieving rapid gelation, strong tissue-adhesive property and stable mechanical strength under fluid physiological environment is still challenging. Herein, we developed a novel chitosan hydrogel (CCS@gel) via dynamic Schiff base reaction and mussel-inspired catechol chemistry. The hydrogel possessed high gelation rate (<10 s), strong wet adhesiveness, excellent self-healing performance and biocompatibility. More importantly, the CCS@gel exhibited saline-induced contractile performance and mechanical enhancement, promoting its mechanical property in moist internal conditions. In vivo studies demonstrated its superior hemostatic efficacy for diverse anticoagulated visceral and carotid bleeding scenarios, compared to commercialized fibrin glue. The hydrogel-treated rats survived for 8 weeks with minimal inflammation and postoperative adhesion. These results revealed that the promising CCS@gel would be a facile, efficient and safe sealant for clinical hemorrhage control.
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Affiliation(s)
- Wen Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ling Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Liangjie Hong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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16
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Jin L, Xu J, Xue Y, Zhang X, Feng M, Wang C, Yao W, Wang J, He M. Research Progress in the Multilayer Hydrogels. Gels 2021; 7:172. [PMID: 34698200 PMCID: PMC8544501 DOI: 10.3390/gels7040172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 01/11/2023] Open
Abstract
Hydrogels have been widely used in many fields including biomedicine and water treatment. Significant achievements have been made in these fields due to the extraordinary properties of hydrogels, such as facile processability and tissue similarity. However, based on the in-depth study of the microstructures of hydrogels, as a result of the enhancement of biomedical requirements in drug delivery, cell encapsulation, cartilage regeneration, and other aspects, it is challenge for conventional homogeneous hydrogels to simultaneously meet different needs. Fortunately, heterogeneous multilayer hydrogels have emerged and become an important branch of hydrogels research. In this review, their main preparation processes and mechanisms as well as their composites from different resources and methods, are introduced. Moreover, the more recent achievements and potential applications are also highlighted, and their future development prospects are clarified and briefly discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Meng He
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; (L.J.); (J.X.); (Y.X.); (X.Z.); (M.F.); (C.W.); (W.Y.); (J.W.)
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17
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Hu Y, Hu S, Zhang S, Dong S, Hu J, Kang L, Yang X. A double-layer hydrogel based on alginate-carboxymethyl cellulose and synthetic polymer as sustained drug delivery system. Sci Rep 2021; 11:9142. [PMID: 33911150 PMCID: PMC8080826 DOI: 10.1038/s41598-021-88503-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 04/06/2021] [Indexed: 12/21/2022] Open
Abstract
A new double-layer, pH-sensitive, composite hydrogel sustained-release system based on polysaccharides and synthetic polymers with combined functions of different inner/outer hydrogels was prepared. The polysaccharides inner core based on sodium alginate (SA) and carboxymethyl cellulose (CMC), was formed by physical crosslinking with pH-sensitive property. The synthetic polymer out-layer with enhanced stability was introduced by chemical crosslinking to eliminate the expansion of inner core and the diffusion of inner content. The physicochemical structure of the double-layer hydrogels was characterized. The drug-release results demonstrated that the sustained-release effect of the hydrogels for different model drugs could be regulated by changing the composition or thickness of the hydrogel layer. The significant sustained-release effect for BSA and indomethacin indicated that the bilayer hydrogel can be developed into a novel sustained delivery system for bioactive substance or drugs with potential applications in drugs and functional foods.
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Affiliation(s)
- Yan Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China. .,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China.
| | - Sheng Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Shangwen Zhang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Siyi Dong
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Jie Hu
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Li Kang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China. .,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China.
| | - Xinzhou Yang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, 430074, China
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18
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Fuentes-Caparrós AM, Canales-Galarza Z, Barrow M, Dietrich B, Läuger J, Nemeth M, Draper ER, Adams DJ. Mechanical Characterization of Multilayered Hydrogels: A Rheological Study for 3D-Printed Systems. Biomacromolecules 2021; 22:1625-1638. [PMID: 33734666 PMCID: PMC8045019 DOI: 10.1021/acs.biomac.1c00078] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/05/2021] [Indexed: 12/04/2022]
Abstract
We describe rheological protocols to study layered and three-dimensional (3D)-printed gels. Our methods allow us to measure the properties at different depths and determine the contribution of each layer to the resulting combined properties of the gels. We show that there are differences when using different measuring systems for rheological measurement, which directly affects the resulting properties being measured. These methods allow us to measure the gel properties after printing, rather than having to rely on the assumption that there is no change in properties from a preprinted gel. We show that the rheological properties of fluorenylmethoxycarbonyl-diphenylalanine (FmocFF) gels are heavily influenced by the printing process.
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Affiliation(s)
| | - Zaloa Canales-Galarza
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
- Department
of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | | | - Bart Dietrich
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Jörg Läuger
- Anton
Paar Germany, 73760 Ostfildern, Germany
| | | | - Emily R. Draper
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Dave J. Adams
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
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19
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Guerle-Cavero R, Lleal-Fontàs B, Balfagón-Costa A. Creation of Ionically Crosslinked Tri-Layered Chitosan Membranes to Simulate Different Human Skin Properties. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1807. [PMID: 33917479 PMCID: PMC8038782 DOI: 10.3390/ma14071807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/23/2021] [Accepted: 04/02/2021] [Indexed: 02/02/2023]
Abstract
In 2023, new legislation will ban the use of animals in the cosmetic industry worldwide. This fact, together with ethical considerations concerning the use of animals or humans in scientific research, highlights the need to propose new alternatives for replacing their use. The aim of this study is to create a tri-layered chitosan membrane ionically crosslinked with sodium tripolyphosphate (TPP) in order to simulate the number of layers in human skin. The current article highlights the creation of a membrane where pores were induced by a novel method. Swelling index, pore creation, and mechanical property measurements revealed that the swelling index of chitosan membranes decreased and, their pore formation and elasticity increased with an increase in the Deacetylation Grade (DDA). Additionally, the results demonstrate that chitosan's origin can influence the elastic modulus value and reproducibility, with higher values being obtained with seashell than snow crab or shrimp shells. Furthermore, the data show that the addition of each layer, until reaching three layers, increases the elastic modulus. Moreover, if layers are crosslinked, the elastic modulus increases to a much greater extent. The characterization of three kinds of chitosan membranes was performed to find the most suitable material for studying different human skin properties.
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Affiliation(s)
- Rocío Guerle-Cavero
- Pharmaceutical Chemistry Research Group, Instituto Químico de Sarriá, 08017 Barcelona, Spain; (B.L.-F.); (A.B.-C.)
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20
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Yan K, Xu F, Wei W, Yang C, Wang D, Shi X. Electrochemical synthesis of chitosan/silver nanoparticles multilayer hydrogel coating with pH-dependent controlled release capability and antibacterial property. Colloids Surf B Biointerfaces 2021; 202:111711. [PMID: 33773171 DOI: 10.1016/j.colsurfb.2021.111711] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/25/2021] [Accepted: 03/16/2021] [Indexed: 12/23/2022]
Abstract
By coupling in situ electrochemical synthesis of silver nanoparticles (AgNPs) with the pre-deposited chitosan multilayer hydrogel, a novel type of nanocomposite coating was successfully fabricated on the stainless-steel needle electrode. Experimental results demonstrated the chitosan film can serve as a versatile medium for metal salt adsorption and stabilization, and finally electrochemical reduction of loaded silver ions to nanoparticles. The AgNPs were fabricated with a spherical shape and an average size of ∼15 nm endowing considerable antibacterial property to the hydrogel. Furthermore, the unique layered architecture consisted of porous segments and compact boundaries is almost retained, resulting in a pH-dependent and staged release pattern of silver nanoparticles based on acid triggered dissolution of the multi-membrane layer by layer. Thus, considering the mild synthesizing approach, multi-functionalities and relatively low cytotoxicity, this antibacterial hydrogel would show great potential either to be used as a newly coating material for interfacial improvement of implants or as a free-standing film after being peeled off for wound dressing.
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Affiliation(s)
- Kun Yan
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China; Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China
| | - Feiyang Xu
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China
| | - Wei Wei
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China
| | - Chenguang Yang
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China
| | - Dong Wang
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China.
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
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21
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Li J, Jia X, Yin L. Hydrogel: Diversity of Structures and Applications in Food Science. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2020.1858313] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, P.R. China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, P.R. China
| | - Xin Jia
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
| | - Lijun Yin
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
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22
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Babicheva TS, Konduktorova AA, Shmakov SL, Shipovskaya AB. Formation of Liesegang Structures under the Conditions of the Spatiotemporal Reaction of Polymer-Analogous Transformation (Salt → Base) of Chitosan. J Phys Chem B 2020; 124:9255-9266. [PMID: 32966088 DOI: 10.1021/acs.jpcb.0c07173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This paper presents the results of our study of the diffusion front progression of OH- ions in the bulk of a flat layer of the salt chitosan form during the course of the chemical reaction of the polymer-analogous salt → base transformation, accompanied by the formation of a water-insoluble polymeric phase as a gel film with its structure of concentric rings or tangential bands. Using scanning electron microscopy and polarization microscopy, structural and morphological features of these periodic formations were visualized. Physicochemical parameters and spatiotemporal mass transfer characteristics were obtained. The process under study is shown to obey the classical laws of ion-exchange reactions, and the formation kinetics and the ratio of the positions of periodic structures are described by the laws characteristic of the Liesegang phenomenon. The average diffusion coefficients of hydroxide ions in the periodic formations calculated, considering the protonation degree of amino groups, were found to be no more than a decimal order of magnitude lower than those in an aqueous solution. This confirms the fact of swelling of the formed chitosan base and the existence of a gel film, in whose liquid phase diffusion occurs.
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Affiliation(s)
- Tatiana S Babicheva
- Institute of Chemistry, Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russian Federation
| | - Anastasiya A Konduktorova
- Institute of Chemistry, Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russian Federation
| | - Sergei L Shmakov
- Institute of Chemistry, Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russian Federation
| | - Anna B Shipovskaya
- Institute of Chemistry, Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russian Federation
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23
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Kumar P, Horváth D, Tóth Á. Bio-inspired flow-driven chitosan chemical gardens. SOFT MATTER 2020; 16:8325-8329. [PMID: 32902544 DOI: 10.1039/d0sm01397h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Organic chemical gardens of chitosan hydrogel develop upon injecting an acidic chitosan solution into an alkaline solution. Besides complex and budding structures, tubular hydrogel formations develop that exhibit periodic surface patterns. The underlying wrinkling instability is identified by its characteristic wavelength dependence on the diameter of the elastic material formed. The flow-driven conditions allow precise control over the structure that can help the design of soft bio-inspired materials. Our findings can also suggest a new direction in the field of chemobrionics.
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Affiliation(s)
- Pawan Kumar
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1., Szeged, H-6720, Hungary.
| | - Dezső Horváth
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged, H-6720, Hungary
| | - Ágota Tóth
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1., Szeged, H-6720, Hungary.
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24
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Zinkovska N, Smilek J, Pekar M. Gradient Hydrogels-The State of the Art in Preparation Methods. Polymers (Basel) 2020; 12:E966. [PMID: 32326192 PMCID: PMC7240752 DOI: 10.3390/polym12040966] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 01/18/2023] Open
Abstract
Gradient hydrogels refer to hydrogel materials with a gradual or abrupt change in one or some of their properties. They represent examples of more sophisticated gel materials in comparison to simple, native gel networks. Here, we review techniques used to prepare gradient hydrogels which have been reported in literature over the last few years. A variety of simple preparation methods are available, most of which can be relatively easily utilized in standard laboratories.
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Affiliation(s)
- Natalia Zinkovska
- Faculty of Chemistry, Brno University of Technology, Purkynova 464/118, CZ-612 00 Brno, Czech Republic
| | - Jiri Smilek
- Faculty of Chemistry, Brno University of Technology, Purkynova 464/118, CZ-612 00 Brno, Czech Republic
| | - Miloslav Pekar
- Faculty of Chemistry, Brno University of Technology, Purkynova 464/118, CZ-612 00 Brno, Czech Republic
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25
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Yan K, Xu F, Ni Y, Yao K, Zhong W, Chen Y, Wang D. Electrodeposition of poly (vinyl alcohol-co-ethylene) nanofiber reinforced chitosan nanocomposite film for electrochemically programmed release of protein. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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26
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Ohemeng-Boahen G, Tran HN, Sewu DD, Woo SH. Multi-membrane formation in chitosan hydrogel shell by the addition of goethite nanoparticles. Carbohydr Polym 2020; 229:115543. [DOI: 10.1016/j.carbpol.2019.115543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/17/2019] [Accepted: 10/26/2019] [Indexed: 12/11/2022]
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27
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Zhao J, Xing T, Li Q, Chen Y, Yao W, Jin S, Chen S. Preparation of chitosan and carboxymethylcellulose‐based polyelectrolyte complex hydrogel via SD‐A‐SGT method and its adsorption of anionic and cationic dye. J Appl Polym Sci 2020. [DOI: 10.1002/app.48980] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jian Zhao
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy TechnologyTsinghua University Beijing China
| | - Tao Xing
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Qin Li
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Yu Chen
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Weishang Yao
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Shaohua Jin
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Shusen Chen
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
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28
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Malik S, Hagopian J, Mohite S, Lintong C, Stoffels L, Giannakopoulos S, Beckett R, Leung C, Ruiz J, Cruz M, Parker B. Robotic Extrusion of Algae-Laden Hydrogels for Large-Scale Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2020; 4:1900064. [PMID: 31956429 PMCID: PMC6957016 DOI: 10.1002/gch2.201900064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/07/2019] [Indexed: 05/14/2023]
Abstract
A bioprinting technique for large-scale, custom-printed immobilization of microalgae is developed for potential applications within architecture and the built environment. Alginate-based hydrogels with various rheology modifying polymers and varying water percentages are characterized to establish a window of operation suitable for layer-by-layer deposition on a large scale. Hydrogels formulated with methylcellulose and carrageenan, with water percentages ranging from 80% to 92.5%, demonstrate a dominant viscoelastic solid-like property with G' > G″ and a low phase angle, making them the most suitable for extrusion-based printing. A custom multimaterial pneumatic extrusion system is developed to be attached on the end effector of an industrial multiaxis robot arm, allowing precision-based numerically controlled layered deposition of the viscous hydrogel. The relationship between the various printing parameters, namely air pressure, material viscosity, viscoelasticity, feed rate, printing distance, nozzle diameter, and the speed of printing, are characterized to achieve the desired resolution of the component. Printed prototypes are postcured in CaCl2 via crosslinking. Biocompatibility tests show that cells can survive for 21 days after printing the constructs. To demonstrate the methodology for scale-up, a 1000 × 500 mm fibrous hydrogel panel is additively deposited with 3 different hydrogels with varying water percentages.
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Affiliation(s)
- Shneel Malik
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Julie Hagopian
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Sanika Mohite
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Cao Lintong
- Department of Biochemical EngineeringBernard Katz BuildingUniversity College LondonLondonWC1H 0AHUK
| | - Laura Stoffels
- Institute of Structural and Molecular BiologyUniversity College LondonLondonWC1E 6BTUK
| | | | - Richard Beckett
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Christopher Leung
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Javier Ruiz
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Marcos Cruz
- Bartlett School of ArchitectureUniversity College LondonLondonWC1E 6BTUK
| | - Brenda Parker
- Department of Biochemical EngineeringBernard Katz BuildingUniversity College LondonLondonWC1H 0AHUK
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29
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Sochilina AV, Budylin NY, Gamisonia AM, Chalykh AE, Zubov VP, Vikhrov AA. Multichannel hydrogel based on a chitosan-poly(vinyl alcohol) composition for directed growth of animal cells. Colloids Surf B Biointerfaces 2019; 184:110495. [PMID: 31539750 DOI: 10.1016/j.colsurfb.2019.110495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/09/2019] [Accepted: 09/05/2019] [Indexed: 01/06/2023]
Abstract
In this study, a new method for production of hydrogels with oriented multichannel structure based on chitosan-poly(vinyl alcohol) compositions was developed. Microscopic and biological studies of the obtained hydrogels were conducted to determine the optimal composition, which would ensure that structure of the material mimics that of the epineurium and perineurium in a nerve. Structure of the hydrogels was adjusted by variation of the initial concentration of the precipitant, poly(vinyl alcohol), and acid in the chitosan compositions. A single cycle of freezing and thawing of the produced hydrogels resulted in lower structural heterogeneity, which is promising for the production of a scaffold that simulates the structure of the native peripheral nerve. in vitro cytotoxic assays showed biocompatibility of the manufactured hydrogels.
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Affiliation(s)
- Anastasia V Sochilina
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, Moscow, 117997, Russia; Federal Scientific Research Centre "Crystallography and Photonics" RAS, Leninsky prospect, 59, Moscow, 119333, Russia.
| | - Nikita Y Budylin
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky prospect, 31, bld.4, Moscow, 119071, Russia
| | - Alina M Gamisonia
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, Moscow, 117997, Russia; National Medical Research Center for Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov of the Ministry of Healthcare of Russian Federation, Akademika Oparina str., 4, Moscow, 117997, Russia
| | - Anatoly E Chalykh
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky prospect, 31, bld.4, Moscow, 119071, Russia
| | - Vitaly P Zubov
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, Moscow, 117997, Russia
| | - Alexander A Vikhrov
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, Moscow, 117997, Russia
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30
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Ravishankar K, Venkatesan M, Desingh RP, Mahalingam A, Sadhasivam B, Subramaniyam R, Dhamodharan R. Biocompatible hydrogels of chitosan-alkali lignin for potential wound healing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:447-457. [DOI: 10.1016/j.msec.2019.04.038] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/07/2019] [Accepted: 04/12/2019] [Indexed: 12/26/2022]
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31
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Highly mineralized chitosan-based material with large size, gradient mineral distribution and hierarchical structure. Carbohydr Polym 2019; 208:336-344. [DOI: 10.1016/j.carbpol.2018.12.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 01/16/2023]
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32
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Morphological Characterization of Hydrogels. POLYMERS AND POLYMERIC COMPOSITES: A REFERENCE SERIES 2019. [DOI: 10.1007/978-3-319-77830-3_28] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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33
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Faivre J, Montembault A, Sudre G, Shrestha BR, Xie G, Matyjaszewski K, Benayoun S, Banquy X, Delair T, David L. Lubrication and Wear Protection of Micro-Structured Hydrogels Using Bioinspired Fluids. Biomacromolecules 2018; 20:326-335. [DOI: 10.1021/acs.biomac.8b01311] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jimmy Faivre
- Ingénierie des Matériaux Polymères, IMP- CNRS UMR 5223, Université de Lyon, Université Claude Bernard Lyon 1, 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France
- Canadian Research Chair in Bioinspired Materials, Faculty of Pharmacy, Université de Montréal, Montréal, Qc H3T 1J4, Canada
| | - Alexandra Montembault
- Ingénierie des Matériaux Polymères, IMP- CNRS UMR 5223, Université de Lyon, Université Claude Bernard Lyon 1, 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France
| | - Guillaume Sudre
- Ingénierie des Matériaux Polymères, IMP- CNRS UMR 5223, Université de Lyon, Université Claude Bernard Lyon 1, 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France
| | - Buddha Ratna Shrestha
- Canadian Research Chair in Bioinspired Materials, Faculty of Pharmacy, Université de Montréal, Montréal, Qc H3T 1J4, Canada
| | - Guojun Xie
- Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stéphane Benayoun
- Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France
| | - Xavier Banquy
- Canadian Research Chair in Bioinspired Materials, Faculty of Pharmacy, Université de Montréal, Montréal, Qc H3T 1J4, Canada
| | - Thierry Delair
- Ingénierie des Matériaux Polymères, IMP- CNRS UMR 5223, Université de Lyon, Université Claude Bernard Lyon 1, 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France
| | - Laurent David
- Ingénierie des Matériaux Polymères, IMP- CNRS UMR 5223, Université de Lyon, Université Claude Bernard Lyon 1, 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France
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34
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Nie J, Pei B, Wang Z, Hu Q. Construction of ordered structure in polysaccharide hydrogel: A review. Carbohydr Polym 2018; 205:225-235. [PMID: 30446099 DOI: 10.1016/j.carbpol.2018.10.033] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 10/10/2018] [Accepted: 10/10/2018] [Indexed: 12/30/2022]
Abstract
Hydrogels are three-dimensional, hydrophilic, polymeric networks, held together by a variety of physical or chemical crosslinks. Among the numerous polymers that can be employed to fabricate hydrogel, polysaccharides have attracted enormous attention due to their peculiar properties that make them suitable for various applications. Compared with homogeneous hydrogels, hydrogels with ordered structures on various length scales are endowed with excellent properties and promising applications in materials science. In the present review, a wide range of techniques were introduced and discussed, which had been utilized to construct ordered hierarchical structures in polysaccharide hydrogels. These techniques focused on the construction of multi-layered and orientated structure, which are two typical and very important forms of hierarchical structure.
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Affiliation(s)
- Jingyi Nie
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Boying Pei
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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35
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Liu G, Ding Z, Yuan Q, Xie H, Gu Z. Multi-Layered Hydrogels for Biomedical Applications. Front Chem 2018; 6:439. [PMID: 30320070 PMCID: PMC6167445 DOI: 10.3389/fchem.2018.00439] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/03/2018] [Indexed: 02/05/2023] Open
Abstract
Multi-layered hydrogels with organization of various functional layers have been the materials of choice for biomedical applications. This review summarized the recent progress of multi-layered hydrogels according to their preparation methods: layer-by-layer self-assembly technology, step-wise technique, photo-polymerization technique and sequential electrospinning technique. In addition, their morphology and biomedical applications were also introduced. At the end of this review, we discussed the current challenges to the development of multi-layered hydrogels and pointed out that 3D printing may provide a new platform for the design of multi-layered hydrogels and expand their applications in the biomedical field.
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Affiliation(s)
- Guiting Liu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
| | - Zhangfan Ding
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qijuan Yuan
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
| | - Huixu Xie
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhipeng Gu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
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36
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Faivre J, Sudre G, Montembault A, Benayoun S, Banquy X, Delair T, David L. Bioinspired microstructures of chitosan hydrogel provide enhanced wear protection. SOFT MATTER 2018; 14:2068-2076. [PMID: 29484334 DOI: 10.1039/c8sm00215k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We describe the fabrication of physical chitosan hydrogels exhibiting a layered structure. This bilayered structure, as shown by SEM and confocal microscopy, is composed of a thin dense superficial zone (SZ), covering a deeper zone (DZ) containing microchannels orientated perpendicularly to the SZ. We show that such structure favors diffusion of macromolecules within the hydrogel matrix up to a critical pressure, σc, above which channels were constricted. Moreover, we found that the SZ provided a higher wear resistance than the DZ which was severely damaged at a pressure equal to the elastic modulus of the gel. The coefficient of friction (CoF) of the SZ remained independent of the applied load with μSZ = 0.38 ± 0.02, while CoF measured at DZ exhibited two regimes: an initial CoF close to the value found on the SZ, and a CoF that decreased to μDZ = 0.18 ± 0.01 at pressures higher than the critical pressure σc. Overall, our results show that internal structuring is a promising avenue in controlling and improving the wear resistance of soft materials such as hydrogels.
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Affiliation(s)
- Jimmy Faivre
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, IMP, UMR 5223, 15 Boulevard Latarjet, F-69622, Villeurbanne, France.
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37
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Khan F, Bera D, Palchaudhuri S, Bera R, Mukhopadhyay M, Dey A, Goswami S, Das S. Dual release kinetics in a single dosage from core–shell hydrogel scaffolds. RSC Adv 2018; 8:32695-32706. [PMID: 35547714 PMCID: PMC9086265 DOI: 10.1039/c8ra05358h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/29/2018] [Indexed: 11/21/2022] Open
Abstract
The development of drug delivery systems with microencapsulated therapeutic agents is a promising approach to the sustained and controlled delivery of various drug molecules. The incorporation of dual release kinetics to such delivery devices further adds to their applicability. Herein, novel core–shell scaffolds composed of sodium deoxycholate and trishydroxymethylaminomethane (NaDC–Tris) have been developed with the aim of delivering two different drugs with variable release rates using the same delivery vehicle. Data obtained from XRD studies, sol–gel transition temperature measurement, rheology and fluorescence studies of the core–shell systems indicate a significant alteration in the core and the shell microstructural properties in a given system as compared to the pure hydrogels of identical compositions. The release of the model drugs Fluorescein (FL) and Rhodamine B (RhB) from the shell and the core, respectively, of the two core–shell designs studied exhibited distinctly different release kinetics. In the 25@250 core–shell system, 100% release of FL from the shell and 19% release of RhB from the core was observed within the first 5 hours, while 24.5 hours was required for the complete release of RhB from the core. For the 100@250 system, similar behaviour was observed with varied release rates and a sigmoidal increase in the core release rate upon disappearance from the shell. Cell viability studies suggested the minimal toxicity of the developed delivery vehicles towards NMuMG and WI-38 cells in the concentration range investigated. The reported core–shell systems composed of a single low molecular weight gelator with dual release kinetics may be designed as per the desired application for the consecutive release of therapeutic agents as required, as well as combination therapy commonly used to treat diseases such as diabetes and cancer. A single LMW gelator based core–shell hydrogel with dual release kinetics.![]()
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Affiliation(s)
- Finaz Khan
- Amity Institute of Applied Sciences
- Department of Chemistry
- Amity University Kolkata
- Newtown
- India
| | - Debbethi Bera
- Department of Physics
- Jadavpur University
- Kolkata
- India
| | | | - Rajesh Bera
- Indian Association for the Cultivation of Sciences
- Kolkata
- India
| | - Madhumita Mukhopadhyay
- Amity Institute of Applied Sciences
- Department of Chemistry
- Amity University Kolkata
- Newtown
- India
| | | | - Soumyabrata Goswami
- Amity Institute of Applied Sciences
- Department of Chemistry
- Amity University Kolkata
- Newtown
- India
| | - Susmita Das
- Amity Institute of Applied Sciences
- Department of Chemistry
- Amity University Kolkata
- Newtown
- India
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38
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Ravishankar K, Kanniyappan H, Shelly KM, Muthuvijayan V, Dhamodharan R. Facile, shear-induced, rapid formation of stable gels of chitosan through in situ generation of colloidal metal salts. Chem Commun (Camb) 2018; 54:11582-11585. [DOI: 10.1039/c8cc06422a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method of preparing chitosan gels using in situ generated negatively-charged colloidal salts of a variety of metal ions is described.
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Affiliation(s)
- Kartik Ravishankar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | | | - K. M. Shelly
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Vignesh Muthuvijayan
- Department of Biotechnology
- Indian Institute of Technology Madras
- Chennai 600036
- India
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39
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Chen J, Li M, Hong W, Xia Y, Lin J, Chen X. Bioinspired interconnected hydrogel capsules for enhanced catalysis. RSC Adv 2018; 8:37050-37056. [PMID: 35557824 PMCID: PMC9088956 DOI: 10.1039/c8ra07037g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/06/2018] [Indexed: 02/01/2023] Open
Abstract
Polysaccharide-based hydrogel capsules with cristae-like internal membranes loaded with Ag nanoparticles exhibited effective catalytic activity as micro-reaction systems.
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Affiliation(s)
- Jiayao Chen
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Minfeng Li
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Wei Hong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Yuanjun Xia
- Guangzhou General Hospital of Guangzhou Military Command
- Guangzhou 510010
- China
| | - Jingjing Lin
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Xudong Chen
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
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40
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Yan K, Liu Y, Zhang J, Correa SO, Shang W, Tsai CC, Bentley WE, Shen J, Scarcelli G, Raub CB, Shi XW, Payne GF. Electrical Programming of Soft Matter: Using Temporally Varying Electrical Inputs To Spatially Control Self Assembly. Biomacromolecules 2017; 19:364-373. [PMID: 29244943 DOI: 10.1021/acs.biomac.7b01464] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The growing importance of hydrogels in translational medicine has stimulated the development of top-down fabrication methods, yet often these methods lack the capabilities to generate the complex matrix architectures observed in biology. Here we show that temporally varying electrical signals can cue a self-assembling polysaccharide to controllably form a hydrogel with complex internal patterns. Evidence from theory and experiment indicate that internal structure emerges through a subtle interplay between the electrical current that triggers self-assembly and the electrical potential (or electric field) that recruits and appears to orient the polysaccharide chains at the growing gel front. These studies demonstrate that short sequences (minutes) of low-power (∼1 V) electrical inputs can provide the program to guide self-assembly that yields hydrogels with stable, complex, and spatially varying structure and properties.
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Affiliation(s)
- Kun Yan
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University , Wuhan 430079, China
| | - Yi Liu
- Institute for Bioscience and Biotechnology Research, University of Maryland College Park , College Park, Maryland 20742, United States.,Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jitao Zhang
- Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Santiago O Correa
- Department of Biomedical Engineering, The Catholic University of America , Washington, D.C. 20064, United States
| | - Wu Shang
- Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Cheng-Chieh Tsai
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy , Baltimore, Maryland 21201, United States
| | - William E Bentley
- Institute for Bioscience and Biotechnology Research, University of Maryland College Park , College Park, Maryland 20742, United States.,Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jana Shen
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy , Baltimore, Maryland 21201, United States
| | - Giuliano Scarcelli
- Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Christopher B Raub
- Department of Biomedical Engineering, The Catholic University of America , Washington, D.C. 20064, United States
| | - Xiao-Wen Shi
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University , Wuhan 430079, China
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research, University of Maryland College Park , College Park, Maryland 20742, United States.,Fischell Department of Bioengineering, University of Maryland College Park , College Park, Maryland 20742, United States
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41
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Sereni N, Enache A, Sudre G, Montembault A, Rochas C, Durand P, Perrard MH, Bozga G, Puaux JP, Delair T, David L. Dynamic Structuration of Physical Chitosan Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12697-12707. [PMID: 29019693 DOI: 10.1021/acs.langmuir.7b02997] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We studied the microstructure of physical chitosan hydrogels formed by the neutralization of chitosan aqueous solutions highlighting the structural gradients within thick gels (up to a thickness of 16 mm). We explored a high polymer concentrations range (Cp ≥ 1.0% w/w) with different molar masses of chitosan and different concentrations of the coagulation agent. The effect of these processing parameters on the morphology was evaluated mainly through small-angle light scattering (SALS) measurements and confocal laser scanning microscopy (CLSM) observations. As a result, we reported that the microstructure is continuously evolving from the surface to the bulk, with mainly two structural transitions zones separating three types of hydrogels. The first zone (zone I) is located close to the surface of the hydrogel and constitutes a hard (entangled) layer formed under fast neutralization conditions. It is followed by a second zone (zone II) with a larger thickness (∼3-4 mm), where in some cases large pores or capillaries (diameter ∼10 μm) oriented parallel to the direction of the gel front are present. Deeper in the hydrogel (zone III), a finer oriented microstructure, with characteristic sizes lower than 2-3 μm, gradually replace the capillary morphology. However, this last bulk morphology cannot be regarded as structurally uniform because the size of small micrometer-range-oriented pores continuously increases as the distance to the surface of the hydrogel increases. These results could be rationalized through the effect of coagulation kinetics impacting the morphology obtained during neutralization.
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Affiliation(s)
- Nicolas Sereni
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Alin Enache
- Centre for Technology Transfer in the Process Industries, Department of Chemical Engineering, University POLITEHNICA of Bucharest , 1 Polizu Street, RO-011061 Bucharest, Romania
| | - Guillaume Sudre
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Alexandra Montembault
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Cyrille Rochas
- Université de Grenoble, Université Joseph Fourier , CERMAV-CNRS UPR5301 Centre de Recherches sur les Macromolécules Végétales, Boîte Postale 53, F-38041 Grenoble Cedex, France
| | - Philippe Durand
- Kallistem, Ecole Normale Supérieure de Lyon , 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Marie-Hélène Perrard
- Kallistem, Ecole Normale Supérieure de Lyon , 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Grigore Bozga
- Centre for Technology Transfer in the Process Industries, Department of Chemical Engineering, University POLITEHNICA of Bucharest , 1 Polizu Street, RO-011061 Bucharest, Romania
| | - Jean-Pierre Puaux
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Thierry Delair
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Laurent David
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
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42
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Bi S, Bao Z, Bai X, Hu S, Cheng X, Chen X. Tough chitosan hydrogel based on purified regeneration and alkaline solvent as biomaterials for tissue engineering applications. Int J Biol Macromol 2017; 104:224-231. [DOI: 10.1016/j.ijbiomac.2017.06.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 05/20/2017] [Accepted: 06/05/2017] [Indexed: 11/25/2022]
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43
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Zhu K, Duan J, Guo J, Wu S, Lu A, Zhang L. High-Strength Films Consisted of Oriented Chitosan Nanofibers for Guiding Cell Growth. Biomacromolecules 2017; 18:3904-3912. [DOI: 10.1021/acs.biomac.7b00936] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kunkun Zhu
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jiangjiang Duan
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jinhua Guo
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Shuangquan Wu
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Ang Lu
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- College of Chemistry and
Molecular Sciences, Wuhan University, Wuhan 430072, China
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Dang NTT, Chau TTL, Duong HV, Le HT, Tran TTV, Le TQ, Vu TP, Nguyen CD, Nguyen LV, Nguyen TD. Water-soluble chitosan-derived sustainable materials: towards filaments, aerogels, microspheres, and plastics. SOFT MATTER 2017; 13:7292-7299. [PMID: 28951935 DOI: 10.1039/c7sm01292f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bioinspired materials have aroused great interest as their inherent biocompatible and structural characteristics have given rise to sustainable applications. In this work, we have reported the phase and morphology transformation of chitosan from crystalline nanofibrils into amorphous sheets for fabricating sustainable materials. Acetylation-induced aqueous dissolution of native chitosan nanofibrils affords water-soluble chitosan as a biopolymeric liquid. Water-soluble chitosan macromolecules self-aggregate into amorphous sheets on solidification, presenting an interesting way to inspire new structures of chitosan assemblies. Through control over gelation, lyophilization, and self-assembled confinement of water-soluble chitosan, we have fabricated novel chitosan materials including filaments, aerogels, microspheres, and plastics that are promising for sustainable use.
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Affiliation(s)
- Nhan Thi Thanh Dang
- Department of Chemistry, Hue University of Sciences, Hue University, 77 Nguyen Hue, Hue City, Vietnam
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El-Kased RF, Amer RI, Attia D, Elmazar MM. Honey-based hydrogel: In vitro and comparative In vivo evaluation for burn wound healing. Sci Rep 2017; 7:9692. [PMID: 28851905 PMCID: PMC5575255 DOI: 10.1038/s41598-017-08771-8] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/06/2017] [Indexed: 01/22/2023] Open
Abstract
Honey was used to treat wounds since ancient times till nowadays. The present study aimed at preparing a honey-based hydrogel and assay its antimicrobial properties and wound healing activity; in-vitro and in-vivo. Topical honey hydrogel formulations were prepared using three honey concentrations with gelling agents; chitosan and carbopol 934. The prepared formulae were evaluated for pH, spreadability, swelling index, in-vitro release and antimicrobial activity. The pH and spreadability were in the range of 4.3–6.8 and 5.7–8.6 cm, respectively. Chitosan-based hydrogel showed higher in-vitro honey release with diffusional exponent ‘n ≤ 0.5 indicates Fickian diffusion mechanism. Hydrogel formulae were assessed for in-vitro antimicrobial activity using Disc Diffusion antibiotic sensitivity test against common burn infections bacteria; Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella pneumonia and Streptococcus pyogenes. The 75% honey-chitosan hydrogel showed highest antimicrobial activity. This formula was tested for in-vivo burn healing using burn-induced wounds in mice. The formula was evaluated for burn healing and antibacterial activities compared to commercial product. 75% honey-chitosan hydrogel was found to possess highest healing rate of burns. The present study concludes that 75% honey-chitosan hydrogel possesses greater wound healing activity compared to commercial preparation and could be safely used as an effective natural topical wound healing treatment.
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Affiliation(s)
- Reham F El-Kased
- Department of Microbiology & Immunology, Faculty of Pharmacy, The British University in Egypt, BUE, Cairo, Egypt.
| | - Reham I Amer
- Department of Pharmaceutics and Industrial Pharmacy Faculty of Pharmacy, October, University for Modern Sciences and Arts (MSA), Cairo, Egypt.,Department of Pharmaceutics, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Dalia Attia
- Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt, BUE, Cairo, Egypt
| | - M M Elmazar
- Department of Pharmacology, Faculty of Pharmacy, The British University in Egypt, BUE, Cairo, Egypt
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Gegel N, Babicheva T, Shipovskaya A. Morphology of Chitosan-Based Hollow Cylindrical Materials with a Layered Structure. BIONANOSCIENCE 2017. [DOI: 10.1007/s12668-017-0415-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Xiao H, Ma C, Le X, Wang L, Lu W, Theato P, Hu T, Zhang J, Chen T. A Multiple Shape Memory Hydrogel Induced by Reversible Physical Interactions at Ambient Condition. Polymers (Basel) 2017; 9:E138. [PMID: 30970817 PMCID: PMC6432359 DOI: 10.3390/polym9040138] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 04/07/2017] [Accepted: 04/10/2017] [Indexed: 11/29/2022] Open
Abstract
A novel multiple shape memory hydrogel is fabricated based on two reversible physical interactions. The multiple shape memory property is endowed by a simple treatment of soaking in NaOH or NaCl solutions to form chitosan microcrystal or chain-entanglement crosslinks as temporary junctions.
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Affiliation(s)
- He Xiao
- Department of Chemistry, College of Science, North University of China, 030051 Taiyuan, China.
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Chunxin Ma
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Xiaoxia Le
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Li Wang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Wei Lu
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstraße 45, 20146 Hamburg, Germany.
| | - Tuoping Hu
- Department of Chemistry, College of Science, North University of China, 030051 Taiyuan, China.
| | - Jiawei Zhang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
| | - Tao Chen
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China.
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A facile and efficient strategy for the fabrication of porous linseed gum/cellulose superabsorbent hydrogels for water conservation. Carbohydr Polym 2017; 157:1830-1836. [DOI: 10.1016/j.carbpol.2016.11.070] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/23/2016] [Accepted: 11/23/2016] [Indexed: 11/17/2022]
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Li P, Zhao J, Chen Y, Cheng B, Yu Z, Zhao Y, Yan X, Tong Z, Jin S. Preparation and characterization of chitosan physical hydrogels with enhanced mechanical and antibacterial properties. Carbohydr Polym 2017; 157:1383-1392. [DOI: 10.1016/j.carbpol.2016.11.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 10/28/2016] [Accepted: 11/03/2016] [Indexed: 02/02/2023]
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50
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Jiang X, Wang Y, Fan D, Zhu C, Liu L, Duan Z. A novel human-like collagen hemostatic sponge with uniform morphology, good biodegradability and biocompatibility. J Biomater Appl 2017; 31:1099-1107. [DOI: 10.1177/0885328216687663] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biodegradable sponges, as a promising hemostatic biomaterial, has been clinically required over the past decades. Current hemostatic sponges are generally prepared by crosslinking and freeze-drying, but the quality control or biocompatibility is often unsatisfactory due to the freezing-caused morphological non-uniformity and the toxicity of raw materials or cross-linkers. The crosslinking often greatly retards the degradation of the sponges and thus affects the healing of the wound. In this work, we prepared a novel hemostatic sponge using human-like collagen and glutamine transaminase (non-toxic cross-linker) and optimized its morphology via “two-step” freezing instead of conventional “one-step” freezing. The resulting sponge showed a good biocompatibility in cytotoxicity and implantation tests and had a significant hemostatic effect in ear artery and liver injury models. Moreover, the sponge could be degraded high efficiently by several common enzymes in organisms (e.g. I collagenase, trypsase, and lysozyme), which means that the sponge can be easily digested by metabolism and can facilitate seamless healing. Finally, both the front and back of the sponge prepared via two-step freezing was more uniform in morphology than that prepared via one-step freezing. More importantly, two-step freezing can be used as a universal approach for preparation of diverse uniform biomaterials.
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Affiliation(s)
- Xijuan Jiang
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
| | - Ya Wang
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
| | - Chenhui Zhu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
| | - Lin Liu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
| | - Zhiguang Duan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Northwest University, China
- School of Chemical Engineering, Northwest University, China
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