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Taale M, Schamberger B, Monclus MA, Dolle C, Taheri F, Mager D, Eggeler YM, Korvink JG, Molina-Aldareguia JM, Selhuber-Unkel C, Lantada AD, Islam M. Microarchitected Compliant Scaffolds of Pyrolytic Carbon for 3D Muscle Cell Growth. Adv Healthc Mater 2024; 13:e2303485. [PMID: 38150609 DOI: 10.1002/adhm.202303485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Indexed: 12/29/2023]
Abstract
The integration of additive manufacturing technologies with the pyrolysis of polymeric precursors enables the design-controlled fabrication of architected 3D pyrolytic carbon (PyC) structures with complex architectural details. Despite great promise, their use in cellular interaction remains unexplored. This study pioneers the utilization of microarchitected 3D PyC structures as biocompatible scaffolds for the colonization of muscle cells in a 3D environment. PyC scaffolds are fabricated using micro-stereolithography, followed by pyrolysis. Furthermore, an innovative design strategy using revolute joints is employed to obtain novel, compliant structures of architected PyC. The pyrolysis process results in a pyrolysis temperature- and design-geometry-dependent shrinkage of up to 73%, enabling the geometrical features of microarchitected compatible with skeletal muscle cells. The stiffness of architected PyC varies with the pyrolysis temperature, with the highest value of 29.57 ± 0.78 GPa for 900 °C. The PyC scaffolds exhibit excellent biocompatibility and yield 3D cell colonization while culturing skeletal muscle C2C12 cells. They further induce good actin fiber alignment along the compliant PyC construction. However, no conclusive myogenic differentiation is observed here. Nevertheless, these results are highly promising for architected PyC scaffolds as multifunctional tissue implants and encourage more investigations in employing compliant architected PyC structures for high-performance tissue engineering applications.
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Affiliation(s)
- Mohammadreza Taale
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Barbara Schamberger
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | | | - Christian Dolle
- Microscopy of Nanoscale Structures and Mechanisms (MNM), Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology, Engesserstr. 7, D-76131, Karlsruhe, Germany
| | - Fereydoon Taheri
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Dario Mager
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Yolita M Eggeler
- Microscopy of Nanoscale Structures and Mechanisms (MNM), Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology, Engesserstr. 7, D-76131, Karlsruhe, Germany
| | - Jan G Korvink
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Jon M Molina-Aldareguia
- IMDEA Materials Institute, Eric Kandel, 2, Getafe, 28906, Spain
- Department of Mechanical Engineering, Universidad Politécnica de Madrid, José Gutierréz Abascal, 2, Madrid, 28006, Spain
| | - Christine Selhuber-Unkel
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Andrés Díaz Lantada
- Department of Mechanical Engineering, Universidad Politécnica de Madrid, José Gutierréz Abascal, 2, Madrid, 28006, Spain
| | - Monsur Islam
- IMDEA Materials Institute, Eric Kandel, 2, Getafe, 28906, Spain
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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2
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Bochani S, Zarepour A, Kalantari-Hesari A, Haghi F, Shahbazi MA, Zarrabi A, Taheri S, Maleki A. Injectable, antibacterial, and oxygen-releasing chitosan-based hydrogel for multimodal healing of bacteria-infected wounds. J Mater Chem B 2023; 11:8056-8068. [PMID: 37545169 DOI: 10.1039/d3tb01278f] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Bacterial infection is one of the main challenges of wound healing. It imposes financial and healthcare costs. The emergence of antibiotic-resistant bacteria has increased concerns about this challenge, and made finding alternative solutions a crucial aim. We created a new, antibacterial, multifunctional hydrogel with synergistic chemodynamic and photothermal features for wound-healing applications. We fabricated a chitosan (CT)-based hydrogel containing tannic acid (TA), Fe, and MnO2 nanosheets (CT-TA-Fe-MnO2) via a simple method and characterized it. The antibacterial features (resulting from the production of reactive oxygen species within bacterial cells) and healing ability (via anti-inflammatory and hemostatic features) of the hydrogel were confirmed in vitro. In vivo results revealed the effectiveness of the CT-TA-Fe-MnO2 hydrogel in decreasing the hemostatic time, improving anti-inflammatory effects, and promoting wound healing during 14 days by enhancing the deposition and maturation of collagen fibers without affecting the vital organs. The fabricated CT-TA-Fe-MnO2 hydrogel could be a promising candidate with antibacterial and anti-inflammatory activities suitable for wound-healing applications.
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Affiliation(s)
- Shayesteh Bochani
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran.
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan, Iran
| | - Atefeh Zarepour
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34396, Turkey
| | - Ali Kalantari-Hesari
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamadan, Iran
| | - Fakhri Haghi
- Department of Microbiology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34396, Turkey
| | - Sophia Taheri
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan, Iran
| | - Aziz Maleki
- Food and Drug Laboratory Research Center, Food and Drug Administration, MOH&ME, Tehran, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran.
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan, Iran
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3
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Tong J, Hou X, Cui D, Chen W, Yao H, Xiong B, Cai L, Zhang H, Jiang L. A berberine hydrochloride-carboxymethyl chitosan hydrogel protects against Staphylococcus aureus infection in a rat mastitis model. Carbohydr Polym 2022; 278:118910. [PMID: 34973731 DOI: 10.1016/j.carbpol.2021.118910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/13/2021] [Indexed: 11/02/2022]
Abstract
Staphylococcus aureus (S. aureus) is the major pathogen responsible for mastitis in dairy cows, an important threat to their health, but prevention of S. aureus infection of the mammary gland remains challenging. Berberine hydrochloride (BH), a naturally occurring phytochemical, exhibits a wide range of activities, including antibacterial effects on S. aureus. In this study, we prepared a novel berberine hydrochloride-carboxymethyl chitosan hydrogel (BH-CMCH) with excellent thermosensitivity, injectability and in vitro antibacterial activity. In a rat model of mastitis induced by S. aureus, mammary duct injection of BH-CMCH reduced the bacterial load in infected mammary gland tissue and protected the tissue from damage from infection. In addition, proteomics analysis showed that mammary duct injection of BH-CMCH enhanced autolysosome degradation and promoted the innate immune response by activating the lysosomal pathway and up-regulating related significantly differentially expressed proteins (SDEPs). Taken together, the findings support the potential of BH-CMCH as an antibacterial agent against S. aureus-induced mastitis.
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Affiliation(s)
- Jinjin Tong
- Beijing Key Laboratory of Dairy Cow Nutrition, Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Xiaolin Hou
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Defeng Cui
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Wu Chen
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Hua Yao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Benhai Xiong
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Lirong Cai
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China
| | - Hua Zhang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China.
| | - Linshu Jiang
- Beijing Key Laboratory of Dairy Cow Nutrition, Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, PR China.
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Rungrod A, Kapanya A, Punyodom W, Molloy R, Mahomed A, Somsunan R. Synthesis and characterization of semi-IPN hydrogels composed of sodium 2-acrylamido-2-methylpropanesulfonate and poly(ε-caprolactone) diol for controlled drug delivery. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Paul K, Darzi S, Werkmeister JA, Gargett CE, Mukherjee S. Emerging Nano/Micro-Structured Degradable Polymeric Meshes for Pelvic Floor Reconstruction. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1120. [PMID: 32517067 PMCID: PMC7353440 DOI: 10.3390/nano10061120] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/29/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023]
Abstract
Pelvic organ prolapse (POP) is a hidden women's health disorder that impacts 1 in 4 women across all age groups. Surgical intervention has been the only treatment option, often involving non-degradable meshes, with variable results. However, recent reports have highlighted the adverse effects of meshes in the long term, which involve unacceptable rates of erosion, chronic infection and severe pain related to mesh shrinkage. Therefore, there is an urgent unmet need to fabricate of new class of biocompatible meshes for the treatment of POP. This review focuses on the causes for the downfall of commercial meshes, and discusses the use of emerging technologies such as electrospinning and 3D printing to design new meshes. Furthermore, we discuss the impact and advantage of nano-/microstructured alternative meshes over commercial meshes with respect to their tissue integration performance. Considering the key challenges of current meshes, we discuss the potential of cell-based tissue engineering strategies to augment the new class of meshes to improve biocompatibility and immunomodulation. Finally, this review highlights the future direction in designing the new class of mesh to overcome the hurdles of foreign body rejection faced by the traditional meshes, in order to have safe and effective treatment for women in the long term.
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Affiliation(s)
- Kallyanashis Paul
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (K.P.); (S.D.); (J.A.W.); (C.E.G.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Saeedeh Darzi
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (K.P.); (S.D.); (J.A.W.); (C.E.G.)
| | - Jerome A. Werkmeister
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (K.P.); (S.D.); (J.A.W.); (C.E.G.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Caroline E. Gargett
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (K.P.); (S.D.); (J.A.W.); (C.E.G.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Shayanti Mukherjee
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (K.P.); (S.D.); (J.A.W.); (C.E.G.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
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Wahid F, Hu XH, Chu LQ, Jia SR, Xie YY, Zhong C. Development of bacterial cellulose/chitosan based semi-interpenetrating hydrogels with improved mechanical and antibacterial properties. Int J Biol Macromol 2019; 122:380-387. [DOI: 10.1016/j.ijbiomac.2018.10.105] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/26/2018] [Accepted: 10/14/2018] [Indexed: 01/05/2023]
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7
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Wahid F, Zhou YN, Wang HS, Wan T, Zhong C, Chu LQ. Injectable self-healing carboxymethyl chitosan-zinc supramolecular hydrogels and their antibacterial activity. Int J Biol Macromol 2018; 114:1233-1239. [PMID: 29634970 DOI: 10.1016/j.ijbiomac.2018.04.025] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 01/19/2023]
Abstract
Injectable and self-healing hydrogels have found numerous applications in drug delivery, tissue engineering and 3D cell culture. Herein, we report an injectable self-healing carboxymethyl chitosan (CMCh) supramolecular hydrogels cross-linked by zinc ions (Zn2+). Supramolecular hydrogels were obtained by simple addition of metal ions solution to CMCh solution at an appropriate pH value. The mechanical properties of these hydrogels were adjustable by the concentration of Zn2+. For example, the hydrogel with the highest concentration of Zn2+ (CMCh-Zn4) showed strongest mechanical properties (storage modulus~11,000Pa) while hydrogel with the lowest concentration of Zn2+ (CMCh-Zn1) showed weakest mechanical properties (storage modulus~220Pa). As observed visually and confirmed rheologically, the CMCh-Zn1 hydrogel with the lowest Zn2+ concentration showed thixotropic property. CMCh-Zn1 hydrogel also presented injectable property. Moreover, the antibacterial properties of the prepared supramolecular hydrogels were studied against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) by agar well diffusion method. The results revealed Zn2+ dependent antibacterial properties against both kinds of strains. The inhibition zones were ranging from ~11-24mm and ~10-22mm against S. aureus and E. coli, respectively. We believe that the prepared supramolecular hydrogels could be used as a potential candidate in biomedical fields.
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Affiliation(s)
- Fazli Wahid
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No.29, 13th Avenue, TEDA, Tianjin 300457, China
| | - Ya-Ning Zhou
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No.29, 13th Avenue, TEDA, Tianjin 300457, China
| | - Hai-Song Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No.29, 13th Avenue, TEDA, Tianjin 300457, China
| | - Tong Wan
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No.29, 13th Avenue, TEDA, Tianjin 300457, China
| | - Cheng Zhong
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, Tianjin 300457, China
| | - Li-Qiang Chu
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, No.29, 13th Avenue, TEDA, Tianjin 300457, China.
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8
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Wahid F, Wang HS, Zhong C, Chu LQ. Facile fabrication of moldable antibacterial carboxymethyl chitosan supramolecular hydrogels cross-linked by metal ions complexation. Carbohydr Polym 2017; 165:455-461. [DOI: 10.1016/j.carbpol.2017.02.085] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 02/16/2017] [Accepted: 02/21/2017] [Indexed: 10/20/2022]
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9
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Hussain T, Schneider M, Summer B, Strieth S. Pre-operative in vitro fibroblast coating of porous polyethylene compound grafts - Cell survival in vivo and effects on biocompatibility. Biomed Mater Eng 2017; 27:237-49. [PMID: 27567778 DOI: 10.3233/bme-161579] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Key factors for successful porous polyethylene (PPE) implantation are rapid vascularization and low inflammatory response. Dermal fibroblasts produce a variety of pro-angiogenic and immunmodulatory factors. OBJECTIVE The aim of this tissue engineering study was to investigate whether coating PPE implants with dermal fibroblasts in vitro is sustainable in vivo and whether the kinetics of blood vessel ingrowth and immunological responses are hereby affected. METHODS PPE implants were cultured with syngeneic GFP-transfected dermal fibroblasts. Cells on the biomaterial were quantified before implantation into dorsal skinfold chamber preparations of C57Bl/6 mice. Uncoated implants served as controls. Angiogenic activity and leukocyte-endothelial cell interactions were repeatedly analyzed. After 10 days, mechanical integration was measured and surviving fluorescently labeled fibroblasts were quantified. Expression of inflammatory cytokines was assessed by quantitative real time-reverse transcription PCR. RESULTS PPE implants were successfully coated with dermal fibroblasts in vitro and 69% of the cells were still detectable at the end of observation. Angiogenic parameters increased during the observation period in both groups. IL-2, IL17A and IL-10 tended to be increased in coated implants, but did not affect leukocyte-endothelial cell interactions. CONCLUSIONS Dermal fibroblast-coating of porous polyethylene implants is feasible and sustainable in vivo. Alone it does not improve biocompatibility but may be beneficial in combination with specific growth factor supplements.
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Affiliation(s)
- Timon Hussain
- Walter-Brendel-Center for Experimental Medicine (WBex), University of Munich (LMU), Marchioninistr. 27, 81377 Munich, Germany.,Department of Otorhinolaryngology, Head and Neck Surgery, University of Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Manuela Schneider
- Walter-Brendel-Center for Experimental Medicine (WBex), University of Munich (LMU), Marchioninistr. 27, 81377 Munich, Germany
| | - Burkhard Summer
- Department of Dermatology, University of Munich (LMU), Frauenlobstr. 9-11, 80337 Munich, Germany
| | - Sebastian Strieth
- Walter-Brendel-Center for Experimental Medicine (WBex), University of Munich (LMU), Marchioninistr. 27, 81377 Munich, Germany.,Department of Otorhinolaryngology, University Medical Center Mainz, Langenbeckstr. 1, 55131 Mainz, Germany
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Tuin SA, Pourdeyhimi B, Loboa EG. Creating tissues from textiles: scalable nonwoven manufacturing techniques for fabrication of tissue engineering scaffolds. ACTA ACUST UNITED AC 2016; 11:015017. [PMID: 26908485 DOI: 10.1088/1748-6041/11/1/015017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Electrospun nonwovens have been used extensively for tissue engineering applications due to their inherent similarities with respect to fibre size and morphology to that of native extracellular matrix (ECM). However, fabrication of large scaffold constructs is time consuming, may require harsh organic solvents, and often results in mechanical properties inferior to the tissue being treated. In order to translate nonwoven based tissue engineering scaffold strategies to clinical use, a high throughput, repeatable, scalable, and economic manufacturing process is needed. We suggest that nonwoven industry standard high throughput manufacturing techniques (meltblowing, spunbond, and carding) can meet this need. In this study, meltblown, spunbond and carded poly(lactic acid) (PLA) nonwovens were evaluated as tissue engineering scaffolds using human adipose derived stem cells (hASC) and compared to electrospun nonwovens. Scaffolds were seeded with hASC and viability, proliferation, and differentiation were evaluated over the course of 3 weeks. We found that nonwovens manufactured via these industry standard, commercially relevant manufacturing techniques were capable of supporting hASC attachment, proliferation, and both adipogenic and osteogenic differentiation of hASC, making them promising candidates for commercialization and translation of nonwoven scaffold based tissue engineering strategies.
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Affiliation(s)
- S A Tuin
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, 4208 EB3, Campus Box 7115, Raleigh, NC 27695, USA
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11
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Sullivan DC, Repper JP, Frock AW, McFetridge PS, Petersen BE. Current Translational Challenges for Tissue Engineering: 3D Culture, Nanotechnology, and Decellularized Matrices. CURRENT PATHOBIOLOGY REPORTS 2015. [DOI: 10.1007/s40139-015-0066-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Tausif M, Duffy B, Grishanov S, Carr H, Russell SJ. Three-dimensional fiber segment orientation distribution using X-ray microtomography. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2014; 20:1294-303. [PMID: 24786513 DOI: 10.1017/s1431927614000695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The orientation of fibers in assemblies such as nonwovens has a major influence on the anisotropy of properties of the bulk structure and is strongly influenced by the processes used to manufacture the fabric. To build a detailed understanding of a fabric's geometry and architecture it is important that fiber orientation in three dimensions is evaluated since out-of-plane orientations may also contribute to the physical properties of the fabric. In this study, a technique for measuring fiber segment orientation as proposed by Eberhardt and Clarke is implemented and experimentally studied based on analysis of X-ray computed microtomographic data. Fiber segment orientation distributions were extracted from volumetric X-ray microtomography data sets of hydroentangled nonwoven fabrics manufactured from parallel-laid, cross-laid, and air-laid webs. Spherical coordinates represented the orientation of individual fibers. Physical testing of the samples by means of zero-span tensile testing and z-directional tensile testing was employed to compare with the computed results.
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Affiliation(s)
- Muhammad Tausif
- 1Nonwovens Research Group,Centre for Technical Textiles,School of Design,University of Leeds,Leeds,LS2 9JT,UK
| | - Brian Duffy
- 3Oxford Centre for Collaborative and Applied Mathematics,University of Oxford,Oxford OX1 3LB,UK
| | - Sergei Grishanov
- 1Nonwovens Research Group,Centre for Technical Textiles,School of Design,University of Leeds,Leeds,LS2 9JT,UK
| | - Hamish Carr
- 4School of Computing,University of Leeds,Leeds LS2 9JT,UK
| | - Stephen J Russell
- 1Nonwovens Research Group,Centre for Technical Textiles,School of Design,University of Leeds,Leeds,LS2 9JT,UK
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13
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Schellenberg A, Ross R, Abagnale G, Joussen S, Schuster P, Arshi A, Pallua N, Jockenhoevel S, Gries T, Wagner W. 3D non-woven polyvinylidene fluoride scaffolds: fibre cross section and texturizing patterns have impact on growth of mesenchymal stromal cells. PLoS One 2014; 9:e94353. [PMID: 24728045 PMCID: PMC3984156 DOI: 10.1371/journal.pone.0094353] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 03/12/2014] [Indexed: 12/16/2022] Open
Abstract
Several applications in tissue engineering require transplantation of cells embedded in appropriate biomaterial scaffolds. Such structures may consist of 3D non-woven fibrous materials whereas little is known about the impact of mesh size, pore architecture and fibre morphology on cellular behavior. In this study, we have developed polyvinylidene fluoride (PVDF) non-woven scaffolds with round, trilobal, or snowflake fibre cross section and different fibre crimp patterns (10, 16, or 28 needles per inch). Human mesenchymal stromal cells (MSCs) from adipose tissue were seeded in parallel on these scaffolds and their growth was compared. Initial cell adhesion during the seeding procedure was higher on non-wovens with round fibres than on those with snowflake or trilobal cross sections. All PVDF non-woven fabrics facilitated cell growth over a time course of 15 days. Interestingly, proliferation was significantly higher on non-wovens with round or trilobal fibres as compared to those with snowflake profile. Furthermore, proliferation increased in a wider, less dense network. Scanning electron microscopy (SEM) revealed that the MSCs aligned along the fibres and formed cellular layers spanning over the pores. 3D PVDF non-woven scaffolds support growth of MSCs, however fibre morphology and mesh size are relevant: proliferation is enhanced by round fibre cross sections and in rather wide-meshed scaffolds.
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Affiliation(s)
- Anne Schellenberg
- Stem Cell Biology and Cellular Engineering, Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Robin Ross
- Institute for Textile Technology RWTH Aachen University, Aachen, Germany
| | - Giulio Abagnale
- Stem Cell Biology and Cellular Engineering, Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Sylvia Joussen
- Stem Cell Biology and Cellular Engineering, Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Philipp Schuster
- Institute for Textile Technology RWTH Aachen University, Aachen, Germany
| | - Annahit Arshi
- Institute for Textile Technology RWTH Aachen University, Aachen, Germany
| | - Norbert Pallua
- Department of Plastic and Reconstructive Surgery, Hand Surgery, Burn Center, RWTH Aachen University, Aachen, Germany
| | - Stefan Jockenhoevel
- Institute for Textile Technology RWTH Aachen University, Aachen, Germany
- Department of Applied Medical Engineering, Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Thomas Gries
- Institute for Textile Technology RWTH Aachen University, Aachen, Germany
| | - Wolfgang Wagner
- Stem Cell Biology and Cellular Engineering, Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
- * E-mail:
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14
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Tronci G, Ajiro H, Russell SJ, Wood DJ, Akashi M. Tunable drug-loading capability of chitosan hydrogels with varied network architectures. Acta Biomater 2014; 10:821-30. [PMID: 24157693 DOI: 10.1016/j.actbio.2013.10.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 09/17/2013] [Accepted: 10/14/2013] [Indexed: 01/22/2023]
Abstract
Advanced bioactive systems with defined macroscopic properties and spatio-temporal sequestration of extracellular biomacromolecules are highly desirable for next generation therapeutics. Here, chitosan (CT) hydrogels were prepared with neutral or negatively charged cross-linkers in order to promote selective electrostatic complexation with charged drugs. CT was functionalized with varied dicarboxylic acids, such as tartaric acid, poly(ethylene glycol) bis(carboxymethyl) ether, 1,4-phenylenediacetic acid and 5-sulfoisophthalic acid monosodium salt (PhS), whereby PhS was hypothesized to act as a simple mimetic of heparin. Attenuated total reflectance Fourier transform infrared spectroscopy showed the presence of CO amide I, N-H amide II and CO ester bands, providing evidence of covalent network formation. The cross-linker content was reversely quantified by proton nuclear magnetic resonance on partially degraded network oligomers, so that 18 mol.% PhS was exemplarily determined. Swellability (SR: 299 ± 65-1054 ± 121 wt.%), compressibility (E: 2.1 ± 0.9-9.2 ± 2.3 kPa), material morphology and drug-loading capability were successfully adjusted based on the selected network architecture. Here, hydrogel incubation with model drugs of varied electrostatic charge, i.e. allura red (AR, doubly negatively charged), methyl orange (MO, negatively charged) or methylene blue (MB, positively charged), resulted in direct hydrogel-dye electrostatic complexation. Importantly, the cationic compound, MB, showed different incorporation behaviours, depending on the electrostatic character of the selected cross-linker. In light of this tunable drug-loading capability, these CT hydrogels would be highly attractive as drug reservoirs towards e.g. the fabrication of tissue models in vitro.
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Affiliation(s)
- Giuseppe Tronci
- Biomaterials and Tissue Engineering Research Group, School of Dentistry, University of Leeds, Clarendon Way, Leeds LS2 9LU, UK; Nonwovens Research Group, Centre for Technical Textiles, School of Design, University of Leeds, Leeds LS2 9JT, UK
| | - Hiroharu Ajiro
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Stephen J Russell
- Nonwovens Research Group, Centre for Technical Textiles, School of Design, University of Leeds, Leeds LS2 9JT, UK
| | - David J Wood
- Biomaterials and Tissue Engineering Research Group, School of Dentistry, University of Leeds, Clarendon Way, Leeds LS2 9LU, UK
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan.
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15
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Tuin SA, Pourdeyhimi B, Loboa EG. Interconnected, microporous hollow fibers for tissue engineering: Commercially relevant, industry standard scale-up manufacturing. J Biomed Mater Res A 2013. [DOI: 10.1002/jbm.a.35002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Stephen A. Tuin
- Joint Department of Biomedical Engineering; at the University of North Carolina at Chapel Hill and North Carolina State University; 4208B EBIII, CB 7115, 911 Oval Raleigh, NC 27695
| | - Behnam Pourdeyhimi
- Nonwovens Cooperative Research Center, The Nonwovens Institute, North Carolina State University; 1000 Main Campus Drive Raleigh North Carolina 27695
| | - Elizabeth G. Loboa
- Joint Department of Biomedical Engineering; at the University of North Carolina at Chapel Hill and North Carolina State University; 4208B EBIII, CB 7115, 911 Oval Raleigh, NC 27695
- Materials Science Engineering; North Carolina State University; EB1 911 Partners Way Raleigh North Carolina 27695
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16
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Joly P, Duda GN, Schöne M, Welzel PB, Freudenberg U, Werner C, Petersen A. Geometry-driven cell organization determines tissue growths in scaffold pores: consequences for fibronectin organization. PLoS One 2013; 8:e73545. [PMID: 24039979 PMCID: PMC3764044 DOI: 10.1371/journal.pone.0073545] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 07/22/2013] [Indexed: 12/11/2022] Open
Abstract
To heal tissue defects, cells have to bridge gaps and generate new extracellular matrix (ECM). Macroporous scaffolds are frequently used to support the process of defect filling and thus foster tissue regeneration. Such biomaterials contain micro-voids (pores) that the cells fill with their own ECM over time. There is only limited knowledge on how pore geometry influences cell organization and matrix production, even though it is highly relevant for scaffold design. This study hypothesized that 1) a simple geometric description predicts cellular organization during pore filling at the cell level and that 2) pore closure results in a reorganization of ECM. Scaffolds with a broad distribution of pore sizes (macroporous starPEG-heparin cryogel) were used as a model system and seeded with primary fibroblasts. The strategies of cells to fill pores could be explained by a simple geometrical model considering cells as tensioned chords. The model matched qualitatively as well as quantitatively by means of cell number vs. open cross-sectional area for all pore sizes. The correlation between ECM location and cell position was higher when the pores were not filled with tissue (Pearson's coefficient ρ = 0.45±0.01) and reduced once the pores were closed (ρ = 0.26±0.04) indicating a reorganization of the cell/ECM network. Scaffold pore size directed the time required for pore closure and furthermore impacted the organization of the fibronectin matrix. Understanding how cells fill micro-voids will help to design biomaterial scaffolds that support the endogenous healing process and thus allow a fast filling of tissue defects.
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Affiliation(s)
- Pascal Joly
- Julius Wolff Institute, Charité - Universitätsmedizin Berlin, Berlin, Germany ; Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany ; Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
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17
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Brown TD, Slotosch A, Thibaudeau L, Taubenberger A, Loessner D, Vaquette C, Dalton PD, Hutmacher DW. Design and fabrication of tubular scaffolds via direct writing in a melt electrospinning mode. Biointerphases 2012; 7:13. [PMID: 22589056 PMCID: PMC4875147 DOI: 10.1007/s13758-011-0013-7] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2011] [Accepted: 12/09/2011] [Indexed: 11/02/2022] Open
Abstract
Flexible tubular structures fabricated from solution electrospun fibers are finding increasing use in tissue engineering applications. However it is difficult to control the deposition of fibers due to the chaotic nature of the solution electrospinning jet. By using non-conductive polymer melts instead of polymer solutions the path and collection of the fiber becomes predictable. In this work we demonstrate the melt electrospinning of polycaprolactone in a direct writing mode onto a rotating cylinder. This allows the design and fabrication of tubes using 20 μm diameter fibers with controllable micropatterns and mechanical properties. A key design parameter is the fiber winding angle, where it allows control over scaffold pore morphology (e.g. size, shape, number and porosity). Furthermore, the establishment of a finite element model as a predictive design tool is validated against mechanical testing results of melt electrospun tubes to show that a lesser winding angle provides improved mechanical response to uniaxial tension and compression. In addition, we show that melt electrospun tubes support the growth of three different cell types in vitro and are therefore promising scaffolds for tissue engineering applications.
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Affiliation(s)
- Toby D. Brown
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Anna Slotosch
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
- Institut für Textiltechnik, Otto-Blumenthal-Str. 1, Aachen, 52074 Germany
| | - Laure Thibaudeau
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Anna Taubenberger
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Daniela Loessner
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Cedryck Vaquette
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Paul D. Dalton
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
| | - Dietmar W. Hutmacher
- Institute of Health and Biomedical Innovation, 60 Musk Ave, Brisbane, 4059 Australia
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18
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Edwards SL, Werkmeister JA. Mechanical evaluation and cell response of woven polyetheretherketone scaffolds. J Biomed Mater Res A 2012; 100:3326-31. [DOI: 10.1002/jbm.a.34286] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/02/2012] [Accepted: 05/17/2012] [Indexed: 11/10/2022]
Affiliation(s)
- S. L. Edwards
- CSIRO Materials Science and Engineering, Normanby Road, Clayton, Australia 3168
| | - J. A. Werkmeister
- CSIRO Materials Science and Engineering, Normanby Road, Clayton, Australia 3168
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19
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Durham ER, Ingham E, Russell SJ. Technique for internal channelling of hydroentangled nonwoven scaffolds to enhance cell penetration. J Biomater Appl 2012; 28:241-9. [PMID: 22532409 PMCID: PMC3764839 DOI: 10.1177/0885328212445077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An important requirement in thick, high-porosity scaffolds is to maximise cellular
penetration into the interior and avoid necrosis during culture in vitro.
Hitherto, reproducible control of the pore structure in nonwoven scaffolds has proved
challenging. A new, channelled scaffold manufacturing process is reported based on water
jet entanglement of fibres (hydroentangling) around filamentous template to form a
coherent scaffold that is subsequently removed. Longitudinally-oriented channels were
introduced within the scaffold in controlled proximity using 220 µm diameter cylindrical
templates. In this case study, channelled scaffolds composed of
poly(l-lactic acid) were manufactured and evaluated
in vitro. Environmental scanning electron microscope and µCT (X-ray
microtomography) confirmed channel openings in the scaffold cross-section before and after
cell culture with human dermal fibroblasts up to 14 weeks. Histology at week 11 indicated
that the channels promoted cell penetration and distribution within the scaffold interior.
At week 14, cellular matrix deposition was evident in the internal channel walls and the
entrances remained unoccluded by cellular matrix suggesting that diffusion conduits for
mass transfer of nutrient to the scaffold interior could be maintained.
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Affiliation(s)
- Elaine R Durham
- Nonwovens Research Group, Centre for Technical Textiles, School of Design, University of Leeds, Leeds, UK.
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