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Li S, Cheng Y, Zhu H, Xu M, Lv H, Wang Z, Liu G, Song H. Strain-Induced Phase Separation and Mechanomodulation of Ionic Conduction in Anisotropic Nanocomposite Ionogels. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38422366 DOI: 10.1021/acsami.3c19167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Ionogels have great potential for the development of tissue-like, soft, and stretchable ionotronics. However, conventional isotropic ionogels suffer from poor mechanical properties, low efficient force transmission, and tardy mechanoelectric response, hindering their practical utility. Here, we propose a simple one-step method to fabricate bioinspired anisotropic nanocomposite ionogels based on a combination of strain-induced phase separation and mechanomodulation of ionic conduction in the presence of attapulgite nanorods. These ionogels show high stretchability (747.1% strain), tensile strength (6.42 MPa), Young's modulus (83.49 MPa), and toughness (18.08 MJ/m3). Importantly, the liquid crystalline domain alignment-induced microphase separation and ionic conductivity enhancement during stretching endow these ionogels with an unusual mechanoelectric response and dual-programmable shape-memory properties. Moreover, the anisotropic structure, good elasticity, and unique resistance-strain responsiveness give the ionogel-based strain sensors high sensitivity, rapid response time, excellent fatigue resistance, and unique waveform-discernible strain sensing, which can be applied to real-time monitoring of human motions. The findings offer a promising way to develop bioinspired anisotropic ionogels to modulate the microstructure and properties for practical applications in advanced ionotronics.
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Affiliation(s)
- Shuaijie Li
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Yan Cheng
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongnan Zhu
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Min Xu
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongying Lv
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Zhuoer Wang
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Guoming Liu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Hongzan Song
- College of Chemistry and Materials Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
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2
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Ramnarine-Sanchez RS, Kanczler JM, Evans ND, Oreffo ROC, Dawson JI. Self-Assembly of Structured Colloidal Gels for High-Resolution 3D Micropatterning of Proteins at Scale. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304461. [PMID: 37658732 DOI: 10.1002/adma.202304461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Indexed: 09/05/2023]
Abstract
Self-assembly, the spontaneous ordering of components into patterns, is widespread in nature and fundamental to generating function across length scales. Morphogen gradients in biological development are paradigmatic as both products and effectors of self-assembly and various attempts have been made to reproduce such gradients in biomaterial design. To date, approaches have typically utilized top-down fabrication techniques that, while allowing high-resolution control, are limited by scale and require chemical cross-linking steps to stabilize morphogen patterns in time. Here, a bottom-up approach to protein patterning is developed based on a novel binary reaction-diffusion process where proteins function as diffusive reactants to assemble a nanoclay-protein composite hydrogel. Using this approach, it is possible to generate scalable and highly stable 3D patterns of target proteins down to sub-cellular resolution through only physical interactions between clay nanoparticles and the proteins and ions present in blood. Patterned nanoclay gels are able to guide cell behavior to precisely template bone tissue formation in vivo. These results demonstrate the feasibility of stabilizing 3D gradients of biological signals through self-assembly processes and open up new possibilities for morphogen-based therapeutic strategies and models of biological development and repair.
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Affiliation(s)
- Roxanna S Ramnarine-Sanchez
- Faculty of Medicine, Department of Human Development and Health, University of Southampton, Southampton, SO16 6YD, UK
| | - Janos M Kanczler
- Faculty of Medicine, Department of Human Development and Health, University of Southampton, Southampton, SO16 6YD, UK
| | - Nicholas D Evans
- Faculty of Medicine, Department of Human Development and Health, University of Southampton, Southampton, SO16 6YD, UK
| | - Richard O C Oreffo
- Faculty of Medicine, Department of Human Development and Health, University of Southampton, Southampton, SO16 6YD, UK
| | - Jonathan I Dawson
- Faculty of Medicine, Department of Human Development and Health, University of Southampton, Southampton, SO16 6YD, UK
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3
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Kakinoki K, Kurasawa R, Maki Y, Dobashi T, Yamamoto T. Gelation and Orientation Dynamics Induced by Contact of Protein Solution with Transglutaminase Solution. Gels 2023; 9:478. [PMID: 37367148 DOI: 10.3390/gels9060478] [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: 04/30/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023] Open
Abstract
Gel growth induced by contact of polymer solutions with crosslinker solutions yields an emerging class of anisotropic materials with many potential applications. Here, we report the case of a study on the dynamics in forming anisotropic gels using this approach with an enzyme as a trigger of gelation and gelatin as the polymer. Unlike the previously studied cases of gelation, the isotropic gelation was followed by gel polymer orientation after a lag time. The isotropic gelation dynamics did not depend on concentrations of the polymer turning into gel and of the enzyme inducing gelation, whereas, for the anisotropic gelation, the square of the gel thickness was a linear function of the elapsed time, and the slope increased with polymer concentration. The gelation dynamics of the present system was explained by a combination of diffusion-limited gelation followed by free-energy-limited orientation of polymer molecules.
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Affiliation(s)
- Kasumi Kakinoki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Ryuta Kurasawa
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Yasuyuki Maki
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Toshiaki Dobashi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Takao Yamamoto
- Division of Pure and Applied Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
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4
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Ishibashi Y, Haraguchi R, Aoki S, Oishi Y, Narita T. Effect of UV Irradiation of Pre-Gel Solutions on the Formation of Collagen Gel Tubes. Gels 2023; 9:458. [PMID: 37367129 DOI: 10.3390/gels9060458] [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: 04/28/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023] Open
Abstract
Hollow collagen gels are promising materials for drug/cell delivery systems to promote tissue regeneration because they may be able to function as carriers for these types of loads. Controlling the cavity size and swelling suppression is essential to expand the applications and improve the usability of such gel-like systems. We investigated the effects of UV-treated collagen solutions as a pre-gel aqueous mixture on the formation and properties of the hollow collagen gels in terms of their preparation range limits, morphology, and swelling ratio. The UV treatment thickened the pre-gel solutions, which allowed hollowing at lower collagen concentrations. This treatment also prevents the over-swelling of the hollow collagen rods in PBS buffer solutions. The UV-treated collagen solutions provided a large lumen space in the prepared collagen hollow fiber rods with a limited swelling ratio, allowing vascular endothelial cells and ectodermal cells to be cultured separately in the outer and inner lumen.
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Affiliation(s)
- Yu Ishibashi
- Department of Chemistry and Applied Chemistry, Saga University, Saga 840-8502, Japan
| | - Ryota Haraguchi
- Department of Chemistry and Applied Chemistry, Saga University, Saga 840-8502, Japan
| | - Shigehisa Aoki
- Department of Pathology and Microbiology, Saga University, Saga 849-8501, Japan
| | - Yushi Oishi
- Department of Chemistry and Applied Chemistry, Saga University, Saga 840-8502, Japan
| | - Takayuki Narita
- Department of Chemistry and Applied Chemistry, Saga University, Saga 840-8502, Japan
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5
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Furusawa K, Kawahana Y, Miyashita R. Construction of Engineered Muscle Tissue Consisting of Myotube Bundles in a Collagen Gel Matrix. Gels 2023; 9:gels9020141. [PMID: 36826311 PMCID: PMC9956229 DOI: 10.3390/gels9020141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Tissue engineering methods that aim to mimic the hierarchical structure of skeletal muscle tissue have been widely developed due to utilities in various fields of biology, including regenerative medicine, food technology, and soft robotics. Most methods have aimed to reproduce the microscopical morphology of skeletal muscles, such as the orientation of myotubes and the sarcomere structure, and there is still a need to develop a method to reproduce the macroscopical morphology. Therefore, in this study, we aim to establish a method to reproduce the macroscopic morphology of skeletal muscle by constructing an engineered muscle tissue (EMT) by culturing embryonic chicken myoblast-like cells that are unidirectionally aligned in collagen hydrogels with micro-channels (i.e., MCCG). Whole mount fluorescent imaging of the EMT showed that the myotubes were unidirectionally aligned and that they were bundled in the collagen gel matrix. The myotubes contracted in response to periodic electrostimulations with a frequency range of 0.5-2.0 Hz, but not at 5.0 Hz. Compression tests of the EMT showed that the EMT had anisotropic elasticity. In addition, by measuring the relaxation moduli of the EMTs, an anisotropy of relaxation strengths was observed. The observed anisotropies could be attributed to differences in maturation and connectivity of myotubes in the directions perpendicular and parallel to the long axis of the micro-channels of the MCCG.
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6
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Ishida-Ishihara S, Takada R, Furusawa K, Ishihara S, Haga H. Improvement of the cell viability of hepatocytes cultured in three-dimensional collagen gels using pump-free perfusion driven by water level difference. Sci Rep 2022; 12:20269. [PMID: 36434099 PMCID: PMC9700666 DOI: 10.1038/s41598-022-24423-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022] Open
Abstract
Cell-containing collagen gels are one of the materials employed in tissue engineering and drug testing. A collagen gel is a useful three-dimensional (3D) scaffold that improves various cell functions compared to traditional two-dimensional plastic substrates. However, owing to poor nutrient availability, cells are not viable in thick collagen gels. Perfusion is an effective method for supplying nutrients to the gel. In this study, we maintained hepatocytes embedded in a 3D collagen gel using a simple pump-free perfusion cell culture system with ordinary cell culture products. Flow was generated by the difference in water level in the culture medium. Hepatocytes were found to be viable in a collagen gel of thickness 3.26 (± 0.16 S.E.)-mm for 3 days. In addition, hepatocytes had improved proliferation and gene expression related to liver function in a 3D collagen gel compared to a 2D culture dish. These findings indicate that our perfusion method is useful for investigating the cellular functions of 3D hydrogels.
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Affiliation(s)
- Sumire Ishida-Ishihara
- grid.39158.360000 0001 2173 7691Department of Functional Life Sciences, Faculty of Advanced Life Science, Hokkaido University, N21-W11, Kita-Ku, Sapporo, 001-0021 Japan
| | - Ryota Takada
- grid.39158.360000 0001 2173 7691Division of Life Science, Graduate School of Life Science, Hokkaido University, N10-W8, Kita-Ku, Sapporo, 060-0810 Japan
| | - Kazuya Furusawa
- grid.440871.e0000 0000 9829 078XFaculty of Environmental and Information Sciences, Fukui University of Technology, Gakuen 3-6-1, Fukui, 910-8505 Japan
| | - Seiichiro Ishihara
- grid.39158.360000 0001 2173 7691Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-Ku, Sapporo, 060-0810 Japan ,grid.39158.360000 0001 2173 7691Soft Matter GI-CoRE, Hokkaido University, N21-W11, Kita-Ku, Sapporo, 001-0021 Japan ,grid.39158.360000 0001 2173 7691Hokkaido University, Room 2-602, Science Bld., N10-W8, Kita-Ku, Sapporo, 060-0810 Japan
| | - Hisashi Haga
- grid.39158.360000 0001 2173 7691Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-Ku, Sapporo, 060-0810 Japan ,grid.39158.360000 0001 2173 7691Soft Matter GI-CoRE, Hokkaido University, N21-W11, Kita-Ku, Sapporo, 001-0021 Japan ,grid.39158.360000 0001 2173 7691Hokkaido University, Room 2-612, Science Bld., N10-W8, Kita-Ku, Sapporo, 060-0810 Japan
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7
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Kasuga T, Saito T, Koga H, Nogi M. One-Pot Hierarchical Structuring of Nanocellulose by Electrophoretic Deposition. ACS NANO 2022; 16:18390-18397. [PMID: 36270629 PMCID: PMC9706670 DOI: 10.1021/acsnano.2c06392] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
The orientation control and the formation of hierarchical structures of nanoscale components, such as bionanofibers and nanosheets, have attracted considerable research interest with the aim of achieving sophisticated functional materials. Herein, we report a simple and flexible strategy for constructing sophisticated hierarchical structures through electrophoretic and electrochemical deposition. Cellulose nanofibers (CNFs), which are used as model materials, are deposited on an anode in an aqueous dispersion and seamlessly oriented from horizontal to vertical relatively to the electrode by adjusting the applied voltage between the electrodes. The oriented CNF hydrogels not only exhibit anisotropic mechanical properties but also form complex orientations and hierarchical structures, such as cartilage- and plant stem-like configurations in response to electrode shape and applied voltage. This simple and flexible technique is expected to be applicable to various materials and contribute to a wide range of fields that include biomimicry, functional nanomaterials, and sustainable and functional moldings.
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Affiliation(s)
- Takaaki Kasuga
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Tsuguyuki Saito
- Department
of Biomaterial Sciences, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hirotaka Koga
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Masaya Nogi
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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8
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Iwamoto Y, Haraguchi R, Nakao R, Aoki S, Oishi Y, Narita T. One-Pot Preparation of Collagen Tubes Using Diffusing Gelation. ACS OMEGA 2022; 7:22872-22878. [PMID: 35811861 PMCID: PMC9261275 DOI: 10.1021/acsomega.2c02623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
One-pot gelation in capillary glass tubes with carbonate-based buffer solution allows the formation of hollow collagen gels (collagen tubes) with an outer diameter of 1 mm or less. The preparation conditions of collagen concentration, buffer concentration, and capillary diameter impacted the ratio and size of the hollow gel and allowed for morphological control of the cavity. The morphology of the hollows suggests that their vacancies are the result of macroscopic phase separation and pinning due to gelation. Mechanical strength measurements of the dried collagen gel tubes demonstrated that the collagen concentration determines their Young's modulus and maximum stress and that the material is strong enough for practical use. In vitro seeding studies of vascular endothelial cells demonstrated the possible formation of endothelial cells in layers in the gel lumen.
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Affiliation(s)
- Yui Iwamoto
- Department
of Chemistry and Applied Chemistry, Saga
University, 1 Honjo, Saga 840-8502, Japan
| | - Ryota Haraguchi
- Department
of Chemistry and Applied Chemistry, Saga
University, 1 Honjo, Saga 840-8502, Japan
| | - Ryosuke Nakao
- Department
of Chemistry and Applied Chemistry, Saga
University, 1 Honjo, Saga 840-8502, Japan
| | - Shigehisa Aoki
- Department
of Pathology and Microbiology, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan
| | - Yushi Oishi
- Department
of Chemistry and Applied Chemistry, Saga
University, 1 Honjo, Saga 840-8502, Japan
| | - Takayuki Narita
- Department
of Chemistry and Applied Chemistry, Saga
University, 1 Honjo, Saga 840-8502, Japan
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9
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Abstract
Thermogelling behavior of aqueous polymer solutions comes from the delicate balance between hydrophilic and hydrophobic moieties of the polymer. Typically, poly(ethylene glycol) (PEG) has been used as a hydrophilic block in most thermogels reported to date. However, recent papers have suggested the potential immunogenicity of PEG-conjugated compounds. Here, we report that aqueous solutions of dl-polyalanine (DL-PA) with a specific molecular weight can exhibit thermogelling behavior. In particular, DL-PA with a molecular weight (Mn) of 6690 Da, DL-PA67, exhibited sol-to-gel transition at the physiologically important temperature range of 30-40 °C. 1H NMR and FTIR data indicated that the mechanism of thermogelation is related to dehydration and conformational changes of DL-PA67 from random coil to β-sheet structures. Subcutaneous injection of an aqueous DL-PA67 solution into rats confirmed the gel formation and its histocompatibility with mild tissue irritation.
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Affiliation(s)
- Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
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10
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Narita T, Kondo M, Oishi Y. Macroscopic Banding Pattern of Collagen Gel Formed by a Diffusion-Reaction Process. ACS OMEGA 2022; 7:1014-1020. [PMID: 35036765 PMCID: PMC8756805 DOI: 10.1021/acsomega.1c05601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
Shapes and patterns observed in internal organs and tissues are reproducibly and robustly produced over a long distance (up to millimeters in length). The most fundamental remaining question is how these long geometries of shape and pattern form arise from the genetic message. Recent studies have demonstrated that extracellular matrix (ECM) critically participates as a structural foundation on which cells can organize and communicate. ECMs may be a key to understanding the underlying mechanisms of long-distance patterning and morphogenesis. However, previous studies in this field mainly focused on the complexes and interaction of cells and ECM. This paper pays particular attention to ECM and demonstrates that collagen, a major ECM component, natively possesses the reproducible and definite patterning ability reaching centimeter-scale length. The macroscopic pattern consists of striped transparent layers. The observation under crossed Nicols demonstrates that the layers consist of alternately arranged polarized and unpolarized parts. Confocal fluorescence microscopy studies revealed that the polarized and unpolarized segments include collagen-rich and -poor regions, respectively. The patterning process was proposed based on the Liesegang banding formation, which are mineral precipitation bands formed in hydrogel matrixes. These findings will give hints to the questions about long-distance cell alignment and provide new clues to artificially control cell placement over micron size in the field of regenerative medicine.
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11
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Utoh R, Enomoto S, Yamada M, Yamanaka K, Yajima Y, Furusawa K, Seki M. Polyanion-induced, microfluidic engineering of fragmented collagen microfibers for reconstituting extracellular environments of 3D hepatocyte culture. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112417. [PMID: 34579926 DOI: 10.1016/j.msec.2021.112417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/23/2021] [Accepted: 08/30/2021] [Indexed: 12/11/2022]
Abstract
Artificial biological scaffolds made of extracellular matrix (ECM) components, such as type I collagen, provide ideal physicochemical cues to various cell culture platforms. However, it remains a challenge to fabricate micrometer-sized ECM materials with precisely controlled morphologies that could reconstitute the 3-dimensional (3D) microenvironments surrounding cells. In the present study, we proposed a unique process to fabricate fragmented collagen microfibers using a microfluidic laminar-flow system. The continuous flow of an acidic collagen solution was neutralized to generate solid fibers, which were subsequently fragmented by applying a gentle shear stress in a polyanion-containing phosphate buffer. The morphology of the fiber fragment was controllable in a wide range by changing the type and/or concentration of the polyanion and by tuning the applied shear stress. The biological benefits of the fragmented fibers were investigated through the formation of multicellular spheroids composed of primary rat hepatocytes and microfibers on non-cell-adhesive micro-vessels. The microfibers enhanced the survival and functions of the hepatocytes and reproduced proper cell polarity, because the fibers facilitated the formation of cell-cell and cell-matrix interactions while modulating the close packing of cells. These results clearly indicated that the microengineered fragmented collagen fibers have great potential to reconstitute extracellular microenvironments for hepatocytes in 3D culture, which will be of significant benefit for cell-based drug testing and bottom-up tissue engineering.
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Affiliation(s)
- Rie Utoh
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Sakiko Enomoto
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Masumi Yamada
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
| | - Keigo Yamanaka
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yuya Yajima
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Kazuya Furusawa
- Department of Applied Chemistry and Food Science, Faculty of Environmental and Information Sciences, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, Japan
| | - Minoru Seki
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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12
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Yonemoto J, Maki Y, Koh I, Furusawa K, Annaka M. Formation of Multi-Channel Collagen Gels Investigated Using Particle Tracking Microrheology. Biomacromolecules 2021; 22:3819-3826. [PMID: 34343432 DOI: 10.1021/acs.biomac.1c00666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Collagen is one of the most common materials used to form scaffolds for tissue engineering applications. The multi-channel collagen gel (MCCG) obtained by the dialysis of an acidic collagen solution in a neutral buffer solution has a unique structure, with many capillaries of diameters several tens to a few hundred micrometers, and could be a potential candidate as a biomimetic scaffold for three-dimensional tissue engineering. In the present study, the formation of MCCG was investigated by in situ rheological measurements based on a particle tracking method (particle tracking microrheology, PTM). PTM enabled us to measure changes in the rheological properties of collagen solutions under the continuous exchange of substances during dialysis. When an observation plane was set perpendicular to the direction of gel growth, we first observed convectional flow of the collagen solution, followed by phase separation and gelation. We showed that the structure of the MCCG originated from the transient structure formed during the initial stage of viscoelastic phase separation and was fixed by the subsequent gelation.
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Affiliation(s)
- Junta Yonemoto
- Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan
| | - Yasuyuki Maki
- Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan
| | - Isabel Koh
- RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kazuya Furusawa
- Department of Environmental and Food Sciences, Fukui University of Technology, Gakuen 3-6-1, Fukui, Fukui 910-8505, Japan
| | - Masahiko Annaka
- Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan
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13
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Adibnia V, Mirbagheri M, Latreille PL, Faivre J, Cécyre B, Robert J, Bouchard JF, Martinez VA, Delair T, David L, Hwang DK, Banquy X. Chitosan hydrogel micro-bio-devices with complex capillary patterns via reactive-diffusive self-assembly. Acta Biomater 2019; 99:211-219. [PMID: 31473363 DOI: 10.1016/j.actbio.2019.08.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023]
Abstract
We present chitosan hydrogel microfluidic devices with self-assembled complex microcapillary patterns, conveniently formed by a diffusion-reaction process. These patterns in chitosan hydrogels are formed by a single-step procedure involving diffusion of a gelation agent into the polymer solution inside a microfluidic channel. By changing the channel geometry, it is demonstrated how to control capillary length, trajectory and branching. Diffusion of nanoparticles (NPs) in the capillary network is used as a model to effectively mimic the transport of nano-objects in vascularized tissues. Gold NPs diffusion is measured locally in the hydrogel chips, and during their two-step transport through the capillaries to the gel matrix and eventually to embedded cell clusters in the gel. In addition, the quantitative analyses reported in this study provide novel opportunities for theoretical investigation of capillary formation and propagation during diffusive gelation of biopolymers. STATEMENT OF SIGNIFICANCE: Hydrogel micropatterning is a challenging task, which is of interest in several biomedical applications. Creating the patterns through self assembly is highly beneficial, because of the accessible and practical preparation procedure. In this study, we introduced complex self-assembled capillary patterns in chitosan hydrogels using a microfluidic approach. To demonstrate the potential application of these capillary patterns, a vascularized hydrogel with microwells occupied by cells was produced, and the diffusion of gold nanoparticles travelling in the capillaries and diffusing in the gel were evaluated. This model mimics a simplified biological tissue, where nanomedicine has to travel through the vasculature, extravasate into and diffuse through the extracellular matrix and eventually reach targeted cells.
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14
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Seow WY, Kandasamy K, Purnamawati K, Sun W, Hauser CA. Thin peptide hydrogel membranes suitable as scaffolds for engineering layered biostructures. Acta Biomater 2019; 88:293-300. [PMID: 30721784 DOI: 10.1016/j.actbio.2019.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 01/19/2019] [Accepted: 02/01/2019] [Indexed: 02/06/2023]
Abstract
A short tetramer peptide, Ac-IVKC, spontaneously formed a hydrogel in water. Disulfide bonds were introduced via hydrogen peroxide (H2O2)-assisted oxidation, resulting in (Ac-IVKC)2 dimers. The extent of disulfide bond formation and gel stiffness increased with the amount of H2O2 used and 100% dimerization was achieved with 0.2% H2O2. The resultant gel achieved an elastic modulus of ∼0.9 MPa, which to our knowledge, has not been reported for peptide-based hydrogels. The enhanced mechanical property enabled the fabrication of thin and transparent membranes. The hydrogel could also be handled with forceps at mm thickness, greatly increasing its ease of physical manipulation. Excess H2O2 was removed and the membrane was then infused with cell culture media. Various cells, including primary human corneal stromal and epithelial cells, were seeded onto the hydrogel membrane and demonstrated to remain viable. Depending on the intended application, specific cell combination or membrane stacking order could be used to engineer layered biostructures. STATEMENT OF SIGNIFICANCE: A short tetramer peptide - Ac-IVKC - spontaneously formed a hydrogel in water and disulfide bonds were introduced via hydrogen peroxide (H2O2)-assisted oxidation. The extent of disulfide-bond formation and gel stiffness were modulated by the amount of H2O2. At maximum disulfide-bond formation, the hydrogel achieved an elastic modulus of ∼0.9 MPa, which to our knowledge, has not been reported for peptide-based hydrogels. The enhanced mechanical property enabled the fabrication of thin transparent membranes that can be physically manipulated at mm thickness. The gels also supported 3D cell growth, including primary human corneal stromal and epithelial cells. Depending on the intended application, specific combination of cells or individual membrane stacking order could be used to engineer layered biostructures.
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15
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Koh I, Furusawa K, Haga H. Anisotropic Multi-channel Collagen Gel (MCCG) Guides the Growth Direction of the Neurite-like Processes of PC12 Cells. Sci Rep 2018; 8:13901. [PMID: 30224813 PMCID: PMC6141479 DOI: 10.1038/s41598-018-32156-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/03/2018] [Indexed: 11/20/2022] Open
Abstract
Hydrogels made of various materials using a variety of methods have been extensively studied for use in tissue engineering, and collagen is one of the most common material used for its biocompatibility due to it being a major component of the extracellular matrix (ECM). Furthermore, the alignment of collagen fibres has been shown to direct the growth of neurites, an important criterion for engineering nervous tissues. The Multi-channel Collagen Gel (MCCG) has collagen fibres aligned circumferentially around the channel structures of the gel, and we predicted that the MCCG could guide the growth direction of neurites. In this study, we showed that the growth pathway of the neurite-like processes of PC12 cells were guided in MCCG but not in normal collagen gel (COL). The gelation of collagen gels are known to be affected by ionic concentrations, and hence we also investigated the effects of different concentrations of NaCl on the properties of MCCG. We found that, despite differences in channel density, spacing between channels, and degree of collagen fibre alignment, all MCCGs had similar guiding properties on the growth of neurites. Therefore, we believe that anisotropic MCCG could be a useful biomaterial for neural tissue engineering in the future.
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Affiliation(s)
- Isabel Koh
- Graduate School of Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, 060-0810, Hokkaido, Japan
| | - Kazuya Furusawa
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku, Kita 10 Nishi 8, Sapporo, Hokkaido, 060-0810, Japan.
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Hokkaido, Japan.
- Department of Environmental and Food Sciences, Fukui University of Technology, Gakuen 3-6-1, Fukui, Fukui, 910-8505, Japan.
| | - Hisashi Haga
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku, Kita 10 Nishi 8, Sapporo, Hokkaido, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Hokkaido, Japan
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16
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Cera L, Schalley CA. Under Diffusion Control: from Structuring Matter to Directional Motion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707029. [PMID: 29931699 DOI: 10.1002/adma.201707029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 03/09/2018] [Indexed: 06/08/2023]
Abstract
Self-organization in synthetic chemical systems is quickly developing into a powerful strategy for designing new functional materials. As self-organization requires the system to exist far from thermodynamic equilibrium, chemists have begun to go beyond the classical equilibrium self-assembly that is often applied in bottom-up supramolecular synthesis, and to learn about the surprising and unpredicted emergent properties of chemical systems that are characterized by a higher level of complexity and extended reactivity networks. The present review focuses on self-organization in reaction-diffusion systems. Selected examples show how the emergence of complex morphogenesis is feasible in synthetic systems leading to hierarchically and nanostructured matter. Starting from well-investigated oscillating reactions, recent developments extend diffusion-limited reactivity to supramolecular systems. The concept of dynamic instability is introduced and illustrated as an additional tool for the design of smart materials and actuators, with emphasis on the realization of motion even at the macroscopic scale. The formation of spatio-temporal patterns along diffusive chemical gradients is exploited as the main channel to realize symmetry breaking and therefore anisotropic and directional mechanical transformations. Finally, the interaction between external perturbations and chemical gradients is explored to give mechanistic insights in the design of materials responsive to external stimuli.
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Affiliation(s)
- Luca Cera
- Institut für Chemie und Biochemie der Freien Universität, Takustr. 3, 14195, Berlin, Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie der Freien Universität, Takustr. 3, 14195, Berlin, Germany
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, P. R. China
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17
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Dobashi T, Yamamoto T. Analysis of Heterogeneous Gelation Dynamics and Their Application to Blood Coagulation. Gels 2018; 4:E59. [PMID: 30674835 PMCID: PMC6209283 DOI: 10.3390/gels4030059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 01/03/2023] Open
Abstract
We present a scaling model based on a moving boundary picture to describe heterogeneous gelation dynamics. The dynamics of gelation induced by different gelation mechanisms is expressed by the scaled equation for the time taken for development of the gel layer with a few kinetic coefficients characterizing the system. The physical meaning obtained by the analysis for a simple boundary condition from the standpoint of the phase transition shows that the time development of the gelation layer depends on whether the dynamics of the order parameter expressing the gelation of the polymer solution is fast or slow compared with the diffusion of the gelators in the heterogeneous gelation. The analytical method is used to understand the coagulation of blood from various animals. An experiment using systems with plasma coagulation occurring at interfaces with calcium chloride solution and with packed erythrocytes is performed to provide the data for model fitting and it is clarified that a few key kinetic coefficients in plasma coagulation can be estimated from the analysis of gelation dynamics.
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Affiliation(s)
- Toshiaki Dobashi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Takao Yamamoto
- Division of Pure and Applied Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
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18
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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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19
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Maki Y, Furusawa K, Yamamoto T, Dobashi T. Structure formation in biopolymer gels induced by diffusion of gelling factors. ACTA ACUST UNITED AC 2018. [DOI: 10.17106/jbr.32.27] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yasuyuki Maki
- Department of Chemistry, Faculty of Science, Kyushu University
| | | | - Takao Yamamoto
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University
| | - Toshiaki Dobashi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University
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20
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Fukao K, Nonoyama T, Kiyama R, Furusawa K, Kurokawa T, Nakajima T, Gong JP. Anisotropic Growth of Hydroxyapatite in Stretched Double Network Hydrogel. ACS NANO 2017; 11:12103-12110. [PMID: 29077392 DOI: 10.1021/acsnano.7b04942] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bone tissues possess excellent mechanical properties such as compatibility between strength and flexibility and load bearing owing to the hybridization of organic/inorganic matters with anisotropic structure. To synthetically mimic such an anisotropic structure of natural organic/inorganic hybrid materials, we carried out hydroxyapatite (HAp) mineralization in stretched tough double network (DN) hydrogels. Anisotropic mineralization of HAp took place in stretched hydrogels, as revealed by high brightness synchrotron X-ray scattering and transmission electron microscopic observation. The c-axis of mineralized HAp aligned along the stretching direction, and the orientation degree S calculated from scattering profiles increased with increasing in the elongation ratio λ of the DN gel, and S at λ = 4 became comparable to that of rabbit tibial bones. The morphology of HAp polycrystal gradually changed from spherical to unidirectional rod-like shape with increased elongation ratio. A possible mechanism for the anisotropic mineralization is proposed, which would be one of the keys to develop mechanically anisotropic organic/inorganic hybrid materials.
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Affiliation(s)
- Kazuki Fukao
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Takayuki Nonoyama
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Ryuji Kiyama
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Kazuya Furusawa
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Takayuki Kurokawa
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Tasuku Nakajima
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
| | - Jian Ping Gong
- Graduate School of Life Science, ‡Faculty of Advanced Life Science, §Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), and ∥Department of High Toughness Hydrogels for Cartilage Application, Center for Innovation and Business Promotion, Hokkaido University , Sapporo 001-0021, Japan
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21
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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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22
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Yahata S, Furusawa K, Nagao K, Nakajima M, Fukuda T. Effects of Three-Dimensional Culture of Mouse Calvaria-Derived Osteoblastic Cells in a Collagen Gel with a Multichannel Structure on the Morphogenesis Behaviors of Engineered Bone Tissues. ACS Biomater Sci Eng 2017; 3:3414-3424. [DOI: 10.1021/acsbiomaterials.7b00190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Toshio Fukuda
- Department
of Mechatronics Engineering, Meijo University, 1-501, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
- Intelligent
Robotics Institute, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
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23
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Maki Y, Furusawa K, Dobashi T, Sugimoto Y, Wakabayashi K. Small-angle X-ray and light scattering analysis of multi-layered Curdlan gels prepared by a diffusion method. Carbohydr Polym 2017; 155:136-145. [DOI: 10.1016/j.carbpol.2016.08.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/18/2016] [Accepted: 08/18/2016] [Indexed: 11/15/2022]
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24
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Shida N, Kurasawa R, Maki Y, Toyama Y, Dobashi T, Yamamoto T. Study of plasma coagulation induced by contact with calcium chloride solution. SOFT MATTER 2016; 12:9471-9476. [PMID: 27847944 DOI: 10.1039/c6sm01926a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Blood coagulation capability is one of the most important factors for the diagnosis of patients with thrombosis. Regarding the blood coagulation as an example of gelation of soft matter, we can apply an analytical method to this phenomenon and pick up some relevant parameters. In various systems, gelation dynamics induced by contact between a polymer solution and a crosslinker solution are well explained by the "moving boundary picture" (Yamamoto et al., J. Phys. Chem. B, 2010, 114, 10002-10009). The aim of this paper is to clarify whether this picture can be applied to a clinically important biological system used for blood coagulation tests. We have measured the time course of the thickness of a plasma gel layer formed when plasma comes in contact with calcium chloride solution in a rectangular cell and analyzed theoretically on the basis of the moving boundary picture. The entire process was well expressed using a scaled equation involving three parameters characterizing the plasma, k, Kin, and β, where k is the time required to reach the incipient stage of three-dimensional network formation, the parameter Kin is proportional to calcium chloride concentration and β is a constant. These results indicate the direct applicability of the general theory of gelation dynamics induced by contact between two solutions to the in vitro coagulation (gelation) of plasma, and the fitting parameters may be used for diagnosis.
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Affiliation(s)
- Natsumi Shida
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Ryuta Kurasawa
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Yasuyuki Maki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Yoshiharu Toyama
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Toshiaki Dobashi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Takao Yamamoto
- Division of Pure and Applied Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
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25
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Mredha MTI, Zhang X, Nonoyama T, Nakajima T, Kurokawa T, Takagi Y, Gong JP. Swim bladder collagen forms hydrogel with macroscopic superstructure by diffusion induced fast gelation. J Mater Chem B 2015; 3:7658-7666. [PMID: 32264576 DOI: 10.1039/c5tb00877h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Marine collagen has been attracting attention as a medical material in recent times due to the low risk of pathogen infection compared to animal collagen. Type I collagen extracted from the swim bladder of Bester sturgeon fish has excellent characteristics such as high denaturation temperature, high solubility, low viscosity and an extremely fast rate to form large bundle of fibers under certain conditions. These specific characteristics of swim bladder collagen (SBC) permit us to create stable, disk shaped hydrogels with concentric orientation of collagen fibers by the controlled diffusion of neutral buffer through collagen solution at room temperature. However, traditionally used animal collagens, e.g. calf skin collagen (CSC) and porcine skin collagen (PSC), could not form any stable and oriented structure by this method. The mechanism of the superstructure formation of SBC by a diffusion induced gelation process has been explored. The fast fibrillogenesis rate of SBC causes a quick squeezing out of the solvent from the gel phase to the sol phase during gelation, which builds an internal stress at the gel-sol interface. The tensile stress induces the collagen molecules of the gel phase to align along the gel-sol interface direction to give this concentric ring-shaped orientation pattern. On the other hand, the slow fibrillogenesis rate of animal collagens due to the high viscosity of the solution does not favor the ordered structure formation. The denaturation temperature of SBC increases significantly from 31 °C to 43 °C after gelation, whereas that of CSC and PSC were found to increase a little. Rheology experiment shows that the SBC gel has storage modulus larger than 15 kPa. The SBC hydrogels with thermal and mechanical stability have potential as bio-materials for tissue engineering applications.
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26
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Furusawa K, Mizutani T, Machino H, Yahata S, Fukui A, Sasaki N. Application of Multichannel Collagen Gels in Construction of Epithelial Lumen-like Engineered Tissues. ACS Biomater Sci Eng 2015; 1:539-548. [DOI: 10.1021/acsbiomaterials.5b00003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuya Furusawa
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
| | - Takeomi Mizutani
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
| | - Hiromi Machino
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
| | - Saki Yahata
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
| | - Akimasa Fukui
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
| | - Naoki Sasaki
- Faculty of Advanced Life Science, and ‡Division of Biological Sciences
(Macromolecular Functions), School of Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido Japan
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27
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Okajima MK, Mishima R, Amornwachirabodee K, Mitsumata T, Okeyoshi K, Kaneko T. Anisotropic swelling in hydrogels formed by cooperatively aligned megamolecules. RSC Adv 2015. [DOI: 10.1039/c5ra18585h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A cyanobacterial polysaccharide, sacran, which has a high molecular length over 30 μm, forms in-plane oriented film by casting. The film creates uniaxially-swelling hydrogels with a micrometer thickness.
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Affiliation(s)
- M. K. Okajima
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi
- Japan
| | - R. Mishima
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi
- Japan
| | - K. Amornwachirabodee
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi
- Japan
- Program of Petrochemistry
| | - T. Mitsumata
- Graduate School of Science and Technology
- Niigata University
- Nishi-ku
- Japan
| | - K. Okeyoshi
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi
- Japan
| | - T. Kaneko
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi
- Japan
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28
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Wu ZL, Takahashi R, Sawada D, Arifuzzaman M, Nakajima T, Kurokawa T, Hu J, Gong JP. In Situ Observation of Ca2+ Diffusion-Induced Superstructure Formation of a Rigid Polyanion. Macromolecules 2014. [DOI: 10.1021/ma501699d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zi Liang Wu
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Riku Takahashi
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Daisuke Sawada
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Md. Arifuzzaman
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tasuku Nakajima
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takayuki Kurokawa
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Jian Hu
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Jian Ping Gong
- Faculty of Advanced Life Science, ‡Graduate School of Life Science, and §Graduate School
of Science, Hokkaido University, Sapporo 060-0810, Japan
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29
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Schuster E, Eckardt J, Hermansson AM, Larsson A, Lorén N, Altskär A, Ström A. Microstructural, mechanical and mass transport properties of isotropic and capillary alginate gels. SOFT MATTER 2014; 10:357-66. [PMID: 24652276 DOI: 10.1039/c3sm52285g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Macroscopically homogeneous and inhomogeneous calcium alginate gels are formed via internal or external addition of various amounts of calcium to an alginate solution. The externally formed gels contain parallel aligned capillary structures. The mechanical and mass transport properties and the microstructure of the differently set gels were characterized by rheological measurements, fluorescence recovery after photobleaching (FRAP) and transmission electron microscopy (TEM). TEM images show a zone of distorted anisotropic gel structure in the vicinity of the capillaries as well as indications of a lower degree of void connectivity. The diffusion rates of dextran at large distances from the capillaries were fast and capillary gels showed a plastic behaviour in comparison to the internally set gels. The results presented show large functional differences between the internally and externally set gels, which cannot be explained by the presence of capillaries alone.
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Affiliation(s)
- Erich Schuster
- Department of Structure and Material Design, The Swedish Institute for Food and Biotechnology, SIK, Göteborg, Sweden
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30
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Guo H, Zhang J, Xu T, Zhang Z, Yao J, Shao Z. The Robust Hydrogel Hierarchically Assembled from a pH Sensitive Peptide Amphiphile Based on Silk Fibroin. Biomacromolecules 2013; 14:2733-8. [DOI: 10.1021/bm4005645] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Hui Guo
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
| | - Jinming Zhang
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
| | - Tao Xu
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
| | - Zhidong Zhang
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
| | - Jinrong Yao
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
| | - Zhengzhong Shao
- State Key Laboratory of Molecule Engineering of Polymers,
Laboratory of Advanced Materials and Department of Macromolecular
Science, Fudan University, 220 Handan Road,
Shanghai 200433, People’s Republic of China
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31
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Hanazaki Y, Masumoto JI, Sato S, Furusawa K, Fukui A, Sasaki N. Multiscale analysis of changes in an anisotropic collagen gel structure by culturing osteoblasts. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5937-5946. [PMID: 23806015 DOI: 10.1021/am303254e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mimicking the complicated anisotropic structures of a native tissue is extremely important in tissue engineering. In a previous study, we developed an anisotropic collagen gel scaffold (ACGS) having a hierarchical structure and a properties gradient. In this study, our objective was to see how cells remodel the scaffolds through the cells-ACGS interaction. For this purpose, we cultured osteoblastic cells on ACGS, which we regarded as a model system for the cells-extracellular matrix (cell-ECM) interaction. Changes in the ACGS-cell composites structure by cell-ECM interactions was investigated from a macroscopic level to a microscopic level. Osteoblastic cells were also cultured on an isotropic collagen gel (ICGS) as a control. During the cultivation, mechanical stimuli were applied to collagen-cell composites for adequate matrix remodeling. Confocal laser scanning microscope (CLSM) was used to observe macroscopic changes in the ACGS-cell composite structure by osteoblastic cells. Small-angle X-ray scattering (SAXS) measurements were performed to characterize microscopic structural changes in the composites. Macroscopic observations using CLSM revealed that osteoblastic cells remained only in the diluted phase in ACGS and they collected collagen fibrils or formed a toroidal structure, depending on the depth from the ACGS surface in the tubular diluted phase. The cells were uniformly distributed in ICGS. SAXS analysis suggests that collagen fibrils were remodeled by osteoblastic cells, and this remodeling process would be affected by the structure difference between ACGS and ICGS. These results suggest that we directly regulate cell-ECM interaction by the unique anisotropic and hierarchical structure of ACGS. The cell-gel composite presented in this study would promise an efficient scaffold material in tissue engineering.
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Affiliation(s)
- Yohei Hanazaki
- Transdisciplinary Life Science Course, Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo, Japan
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