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Ino K, Konno A, Utagawa Y, Kanno T, Iwase K, Abe H, Shiku H. Fabrication of Two-Layer Microfluidic Devices with Porous Electrodes Using Printed Sacrificial Layers. MICROMACHINES 2024; 15:1054. [PMID: 39203705 PMCID: PMC11356774 DOI: 10.3390/mi15081054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 08/16/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024]
Abstract
Two-layer microfluidic devices with porous membranes have been widely used in bioapplications such as microphysiological systems (MPS). Porous electrodes, instead of membranes, have recently been incorporated into devices for electrochemical cell analysis. Generally, microfluidic channels are prepared using soft lithography and assembled into two-layer microfluidic devices. In addition to soft lithography, three-dimensional (3D) printing has been widely used for the direct fabrication of microfluidic devices because of its high flexibility. However, this technique has not yet been applied to the fabrication of two-layer microfluidic devices with porous electrodes. This paper proposes a novel fabrication process for this type of device. In brief, Pluronic F-127 ink was three-dimensionally printed in the form of sacrificial layers. A porous Au electrode, fabricated by sputtering Au on track-etched polyethylene terephthalate membranes, was placed between the top and bottom sacrificial layers. After covering with polydimethylsiloxane, the sacrificial layers were removed by flushing with a cold solution. To the best of our knowledge, this is the first report on the sacrificial approach-based fabrication of two-layer microfluidic devices with a porous electrode. Furthermore, the device was used for electrochemical assays of serotonin and could successfully measure concentrations up to 5 µM. In the future, this device can be used for MPS applications.
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Affiliation(s)
- Kosuke Ino
- Graduate School of Engineering, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - An Konno
- Graduate School of Environmental Studies, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Yoshinobu Utagawa
- Graduate School of Engineering, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Taiyo Kanno
- Graduate School of Engineering, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Kazuyuki Iwase
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Hiroya Abe
- Graduate School of Engineering, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki-aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Hitoshi Shiku
- Graduate School of Engineering, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
- Graduate School of Environmental Studies, Tohoku University, 6-6-11-604 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
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2
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Wang C, Zhou Y. Sacrificial biomaterials in 3D fabrication of scaffolds for tissue engineering applications. J Biomed Mater Res B Appl Biomater 2024; 112:e35312. [PMID: 37572033 DOI: 10.1002/jbm.b.35312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/05/2023] [Accepted: 07/31/2023] [Indexed: 08/14/2023]
Abstract
Three-dimensional (3D) printing technology has progressed exceedingly in the area of tissue engineering. Despite the tremendous potential of 3D printing, building scaffolds with complex 3D structure, especially with soft materials, still exist as a challenge due to the low mechanical strength of the materials. Recently, sacrificial materials have emerged as a possible solution to address this issue, as they could serve as temporary support or templates to fabricate scaffolds with intricate geometries, porous structures, and interconnected channels without deformation or collapse. Here, we outline the various types of scaffold biomaterials with sacrificial materials, their pros and cons, and mechanisms behind the sacrificial material removal, compare the manufacturing methods such as salt leaching, electrospinning, injection-molding, bioprinting with advantages and disadvantages, and discuss how sacrificial materials could be applied in tissue-specific applications to achieve desired structures. We finally conclude with future challenges and potential research directions.
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Affiliation(s)
- Chi Wang
- Systems Science and Industrial Engineering, Binghamton University, Binghamton, New York, USA
| | - Yingge Zhou
- Systems Science and Industrial Engineering, Binghamton University, Binghamton, New York, USA
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3
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Utagawa Y, Ino K, Takinoue M, Shiku H. Fabrication and Cell Culture Applications of Core-Shell Hydrogel Fibers Composed of Chitosan/DNA Interfacial Polyelectrolyte Complexation and Calcium Alginate: Straight and Beaded Core Variations. Adv Healthc Mater 2023; 12:e2302011. [PMID: 37478383 DOI: 10.1002/adhm.202302011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Indexed: 07/23/2023]
Abstract
Core-shell hydrogel fibers are widely used in cell culture applications. A simple and rapid method is presented for fabricating core-shell hydrogel fibers, consisting of straight or beaded core fibers, for cell culture applications. The core fibers are prepared using interfacial polyelectrolyte complexation (IPC) with chitosan and DNA. Briefly, two droplets of chitosan and DNA are brought in contact to form an IPC film, which is dragged to prepare an IPC fiber. The incubation time and DNA concentration are adjusted to prepare straight and beaded IPC fibers. The fibers with Ca2+ are immersed in an alginate solution to form calcium alginate shell hydrogels around the core IPC fibers. To the best of the knowledge, this is the first report of core-shell hydrogel fibers with IPC fiber cores. To demonstrate cell culture, straight hydrogel fibers are applied to fabricate hepatic models consisting of HepG2 and 3T3 fibroblasts, and vascular models consisting of human umbilical vein endothelial cells and 3T3 fibroblasts. To evaluate the effect of co-culture, albumin secretion, and angiogenesis are evaluated. Beaded hydrogel fibers are used to fabricate many size-controlled spheroids for fiber and cloning applications. This method can be widely applied in tissue engineering and cell analysis.
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Affiliation(s)
- Yoshinobu Utagawa
- Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Kosuke Ino
- Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Masahiro Takinoue
- Department of Computer Science, Tokyo Institute of Technology, Yokohama, 226-8502, Japan
| | - Hitoshi Shiku
- Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
- Graduate School of Environmental Studies, Tohoku University, Sendai, 980-8579, Japan
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4
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Ullah I, Farooq AS, Naz I, Ahmad W, Ullah H, Sehar S, Nawaz A. Fabrication of Polymeric Hydrogels Containing Esomeprazole for Oral Delivery: In Vitro and In Vivo Pharmacokinetic Characterization. Polymers (Basel) 2023; 15:polym15071798. [PMID: 37050412 PMCID: PMC10097100 DOI: 10.3390/polym15071798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
Hydrogel is one of the most interesting and excellent candidates for oral drug delivery. The current study focuses on formulation development of hydrogels for controlled oral delivery of esomeprazole. The hydrogels were prepared by solution casting method by dissolving polymers in Polyvinyl alcohol (PVA) solution. Calcium alginate, Hydroxyl propyl methylcellulose (HPMC), acrylic acid and chondroitin sulfate were used in the preparation of hydrogels. Fourier transform infrared (FTIR) analysis showed no incompatibilities between drug and excipients used in the preparation of formulations. The hydrogels were characterized for size and surface morphology. Drug encapsulation efficiency was measured by Ultraviolet-visible (UV-VIS) spectroscopy. In vitro release studies were carried out using dissolution apparatus. The formulated hydrogels were then compared with the marketed product in vivo using rabbits. The result indicates that prepared hydrogels have a uniform size with a porous surface. The esomeprazole encapsulation efficiency of the prepared hydrogels was found to be 83.1 ± 2.16%. The esomeprazole-loaded hydrogel formulations showed optimum and Pharmacopeial acceptable range swelling behavior. The release of esomeprazole is controlled for 24 h (85.43 ± 0.32% in 24 h). The swelling and release of drug results make the prepared hydrogels a potential candidate for the controlled delivery of esomeprazole. The release of the drug from prepared hydrogel followed the super case transport-2 mechanism. The in vivo studies showed that prepared hydrogel formulations showed controlled and prolonged release of esomeprazole as compared to drug solution and marketed product. The formulations were kept for stability studies; there was no significant change observed in physical parameters, i.e., (appearance, color change and grittiness) at 40 °C ± 2/75% ± RH. There was a negligible difference in the drug content observed after the stability study suggested that all the formulations are stable under the given conditions for 60 days. The current study provides a valuable perspective on the controlled release profile of Hydroxyl propyl methylcellulose (HPMC) and calcium alginate-based esomeprazole hydrogels.
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Affiliation(s)
- Irshad Ullah
- Department of Pharmacy, University of Swabi, Swabi 94640, Khyber Pakhtunkhwa, Pakistan
| | - Ayesha Shuja Farooq
- Department of Biochemistry, Science Unit, Deanship of Educational Services, Qassim University, Buraidah 51452, Saudi Arabia
| | - Iffat Naz
- Department of Biology, Science Unit, Deanship of Educational Services, Qassim University, Buraydah 51452, Saudi Arabia
| | - Waqar Ahmad
- Department of Pharmacy, University of Swabi, Swabi 94640, Khyber Pakhtunkhwa, Pakistan
| | - Hidayat Ullah
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29220, Khyber Pakhtunkhwa, Pakistan
| | - Shama Sehar
- Department of Environmental Engineering, College of Engineering, University of Technology, Salmabad 18041, Bahrain
| | - Asif Nawaz
- Advanced Drug Delivery Lab, Gomal Centre of Pharmaceutical Sciences, Faculty of Pharmacy, Gomal University, Dera Ismail Khan 29050, Khyber Pakhtunkhwa, Pakistan
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5
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Cao DQ, Tang K, Zhang WY, Chang C, Han JL, Tian F, Hao XD. Calcium Alginate Production through Forward Osmosis with Reverse Solute Diffusion and Mechanism Analysis. MEMBRANES 2023; 13:207. [PMID: 36837710 PMCID: PMC9968021 DOI: 10.3390/membranes13020207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/26/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Calcium alginate (Ca-Alg) is a novel target product for recovering alginate from aerobic granular sludge. A novel Ca-Alg production method was proposed herein where Ca-Alg was formed in a sodium alginate (SA) feed solution (FS) and concentrated via forward osmosis (FO) with Ca2+ reverse osmosis using a draw solution of CaCl2. An abnormal reverse solute diffusion was observed, with the average reverse solute flux (RSF) decreasing with increasing CaCl2 concentrations, while the average RSF increased with increasing alginate concentrations. The RSF of Ca2+ in FS decreased continuously as the FO progressed, using 1.0 g/L SA as the FS, while it increased initially and later decreased using 2.0 and 3.0 g/L SA as the FS. These results were attributed to the Ca-Alg recovery production (CARP) formed on the FO membrane surface on the feed side, and the percentage of Ca2+ in CARP to total Ca2+ reverse osmosis reached 36.28%. Scanning electron microscopy and energy dispersive spectroscopy also verified CARP existence and its Ca2+ content. The thin film composite FO membrane with a supporting polysulfone electrospinning nanofiber membrane layer showed high water flux and RSF of Ca2+, which was proposed as a novel FO membrane for Ca-Alg production via the FO process with Ca2+ reverse diffusion. Four mechanisms including molecular sieve role, electrification of colloids, osmotic pressure of ions in CARP, and FO membrane structure were proposed to control the Ca-Alg production. Thus, the results provide further insights into Ca-Alg production via FO along with Ca2+ reverse osmosis.
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Affiliation(s)
- Da-Qi Cao
- Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Kai Tang
- Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Wen-Yu Zhang
- Institute of Soil Environment and Pollution Remediation, Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China
| | - Cheng Chang
- Institute of Chemical Engineering, Chemical and Process Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Jia-Lin Han
- Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Feng Tian
- Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Xiao-Di Hao
- Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
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6
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Man E, Oluwasanmi A, Lamprou DA, Goudie K, Liggat J, Hoskins C. Effect of preparation method on alginate wafer properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.52941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ernest Man
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow UK
| | - Adeolu Oluwasanmi
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow UK
| | | | - Kirsty Goudie
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow UK
| | - John Liggat
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow UK
| | - Clare Hoskins
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow UK
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7
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Ze Y, Li Y, Huang L, Shi Y, Li P, Gong P, Lin J, Yao Y. Biodegradable Inks in Indirect Three-Dimensional Bioprinting for Tissue Vascularization. Front Bioeng Biotechnol 2022; 10:856398. [PMID: 35402417 PMCID: PMC8990266 DOI: 10.3389/fbioe.2022.856398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/09/2022] [Indexed: 02/05/2023] Open
Abstract
Mature vasculature is important for the survival of bioengineered tissue constructs, both in vivo and in vitro; however, the fabrication of fully vascularized tissue constructs remains a great challenge in tissue engineering. Indirect three-dimensional (3D) bioprinting refers to a 3D printing technique that can rapidly fabricate scaffolds with controllable internal pores, cavities, and channels through the use of sacrificial molds. It has attracted much attention in recent years owing to its ability to create complex vascular network-like channels through thick tissue constructs while maintaining endothelial cell activity. Biodegradable materials play a crucial role in tissue engineering. Scaffolds made of biodegradable materials act as temporary templates, interact with cells, integrate with native tissues, and affect the results of tissue remodeling. Biodegradable ink selection, especially the choice of scaffold and sacrificial materials in indirect 3D bioprinting, has been the focus of several recent studies. The major objective of this review is to summarize the basic characteristics of biodegradable materials commonly used in indirect 3D bioprinting for vascularization, and to address recent advances in applying this technique to the vascularization of different tissues. Furthermore, the review describes how indirect 3D bioprinting creates blood vessels and vascularized tissue constructs by introducing the methodology and biodegradable ink selection. With the continuous improvement of biodegradable materials in the future, indirect 3D bioprinting will make further contributions to the development of this field.
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Affiliation(s)
- Yiting Ze
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yanxi Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Linyang Huang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yixin Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peiran Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ping Gong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Yao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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8
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Utagawa Y, Ino K, Kumagai T, Hiramoto K, Takinoue M, Nashimoto Y, Shiku H. Electrochemical Glue for Binding Chitosan–Alginate Hydrogel Fibers for Cell Culture. MICROMACHINES 2022; 13:mi13030420. [PMID: 35334714 PMCID: PMC8952256 DOI: 10.3390/mi13030420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022]
Abstract
Three-dimensional organs and tissues can be constructed using hydrogels as support matrices for cells. For the assembly of these gels, chemical and physical reactions that induce gluing should be induced locally in target areas without causing cell damage. Herein, we present a novel electrochemical strategy for gluing hydrogel fibers. In this strategy, a microelectrode electrochemically generated HClO or Ca2+, and these chemicals were used to crosslink chitosan–alginate fibers fabricated using interfacial polyelectrolyte complexation. Further, human umbilical vein endothelial cells were incorporated into the fibers, and two such fibers were glued together to construct “+”-shaped hydrogels. After gluing, the hydrogels were embedded in Matrigel and cultured for several days. The cells spread and proliferated along the fibers, indicating that the electrochemical glue was not toxic toward the cells. This is the first report on the use of electrochemical glue for the assembly of hydrogel pieces containing cells. Based on our results, the electrochemical gluing method has promising applications in tissue engineering and the development of organs on a chip.
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Affiliation(s)
- Yoshinobu Utagawa
- Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan; (Y.U.); (T.K.); (K.H.)
| | - Kosuke Ino
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;
- Correspondence: (K.I.); (H.S.)
| | - Tatsuki Kumagai
- Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan; (Y.U.); (T.K.); (K.H.)
| | - Kaoru Hiramoto
- Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan; (Y.U.); (T.K.); (K.H.)
| | - Masahiro Takinoue
- Department of Computer Science, Tokyo Institute of Technology, Yokohama 226-8502, Japan;
| | - Yuji Nashimoto
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Hitoshi Shiku
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;
- Correspondence: (K.I.); (H.S.)
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9
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Xie F, Li C, Hua X, Ma L. Biofabrication of controllable alginate hydrogel cell scaffolds based on bipolar electrochemistry. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211053920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bipolar electrochemistry successfully realized the electrodeposition of calcium alginate hydrogels in specific target areas in tissue engineering. However, the shape and quantity of three-dimensional cannot be accurately controlled. We presented a novel growth model for fabricating hydrogels based on bipolar electrochemical by patterned bipolar electrodes using photolithography. This work highlights pattern customization and quantitative control of hydrogels in cell culture platforms. Furthermore, alginate hydrogels with different heights can be controlled by adjusting the key parameters of the growth model. This strategy exhibits promising potential for cell-oriented scaffolds in tissue engineering.
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Affiliation(s)
- Fei Xie
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
| | - Changyue Li
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
| | - Xiaoqing Hua
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
| | - Li Ma
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
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10
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Jiang Z, Zhang K, Du L, Cheng Z, Zhang T, Ding J, Li W, Xu B, Zhu M. Construction of chitosan scaffolds with controllable microchannel for tissue engineering and regenerative medicine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112178. [PMID: 34082978 DOI: 10.1016/j.msec.2021.112178] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/16/2021] [Accepted: 05/04/2021] [Indexed: 12/16/2022]
Abstract
Microchannels are effective means of enabling the functional performance of tissue engineering scaffolds. Chitosan, a partial deacetylation derivative of chitin, exhibiting excellent biocompatibility, has been widely used in clinical practice. However, development of chitosan scaffolds with controllable microchannels architecture remains an engineering challenge. Here, we generated chitosan scaffolds with adjustable microchannel by combining a 3D printing microfiber templates-leaching method and a freeze-drying method. We can precisely control the arrangement, diameter and density of microchannel within chitosan scaffolds. Moreover, the integrated bilayer scaffolds with the desired structural parameters in each layer were fabricated and exhibited no delamination. The flow rate and volume of the simulated fluid can be modulated by diverse channels architecture. Additionally, the microchannel structure promoted cell survival, proliferation and distribution in vitro, and improved cell and tissue ingrowth and vascular formation in vivo. This study opens a new road for constructing chitosan scaffolds, and can further extend their application scope across tissue engineering and regenerative medicine.
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Affiliation(s)
- Zhuyan Jiang
- The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin 300070, China; Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Kaihui Zhang
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China
| | - Lilong Du
- Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China.
| | - Zhaojun Cheng
- Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China
| | - Tongxing Zhang
- Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China
| | - Ji Ding
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China
| | - Wen Li
- College of Life Sciences, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Baoshan Xu
- Graduate School, Tianjin Medical University, Tianjin 300070, China; Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China.
| | - Meifeng Zhu
- College of Life Sciences, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China.
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11
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Beaumont M, Tran R, Vera G, Niedrist D, Rousset A, Pierre R, Shastri VP, Forget A. Hydrogel-Forming Algae Polysaccharides: From Seaweed to Biomedical Applications. Biomacromolecules 2021; 22:1027-1052. [PMID: 33577286 PMCID: PMC7944484 DOI: 10.1021/acs.biomac.0c01406] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/29/2021] [Indexed: 12/22/2022]
Abstract
With the increasing growth of the algae industry and the development of algae biorefinery, there is a growing need for high-value applications of algae-extracted biopolymers. The utilization of such biopolymers in the biomedical field can be considered as one of the most attractive applications but is challenging to implement. Historically, polysaccharides extracted from seaweed have been used for a long time in biomedical research, for example, agarose gels for electrophoresis and bacterial culture. To overcome the current challenges in polysaccharides and help further the development of high-added-value applications, an overview of the entire polysaccharide journey from seaweed to biomedical applications is needed. This encompasses algae culture, extraction, chemistry, characterization, processing, and an understanding of the interactions of soft matter with living organisms. In this review, we present algae polysaccharides that intrinsically form hydrogels: alginate, carrageenan, ulvan, starch, agarose, porphyran, and (nano)cellulose and classify these by their gelation mechanisms. The focus of this review further lays on the culture and extraction strategies to obtain pure polysaccharides, their structure-properties relationships, the current advances in chemical backbone modifications, and how these modifications can be used to tune the polysaccharide properties. The available techniques to characterize each organization scale of a polysaccharide hydrogel are presented, and the impact on their interactions with biological systems is discussed. Finally, a perspective of the anticipated development of the whole field and how the further utilization of hydrogel-forming polysaccharides extracted from algae can revolutionize the current algae industry are suggested.
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Affiliation(s)
- Marco Beaumont
- Queensland
University of Technology, Brisbane, Australia
| | - Remy Tran
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Grace Vera
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Dennis Niedrist
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Aurelie Rousset
- Centre
d’Étude et de Valorisation des Algues, Pleubian, France
| | - Ronan Pierre
- Centre
d’Étude et de Valorisation des Algues, Pleubian, France
| | - V. Prasad Shastri
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
- Centre
for Biological Signalling Studies, University
of Freiburg, Frieburg, Germany
| | - Aurelien Forget
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
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12
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Yan M, Shi J, Tang S, Zhou G, Zeng J, Zhang Y, Zhang H, Yu Y, Guo J. Design for dynamic hydrogen bonding in a double network structure to improve the mechanical properties of sodium alginate fibers. NEW J CHEM 2021. [DOI: 10.1039/d1nj03268b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The SA/PAA-VSNP fiber was obtained using dynamic wet spinning through dynamic hydrogen bonding in the double network structure.
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Affiliation(s)
- Ming Yan
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Junfeng Shi
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Song Tang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Guohang Zhou
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Jiexiang Zeng
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Yixin Zhang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Hong Zhang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Yue Yu
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Jing Guo
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
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