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An H, Zhang M, Gu Z, Jiao X, Ma Y, Huang Z, Wen Y, Dong Y, Zhang P. Advances in Polysaccharides for Cartilage Tissue Engineering Repair: A Review. Biomacromolecules 2024; 25:2243-2260. [PMID: 38523444 DOI: 10.1021/acs.biomac.3c01424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Cartilage repair has been a significant challenge in orthopedics that has not yet been fully resolved. Due to the absence of blood vessels and the almost cell-free nature of mature cartilage tissue, the limited ability to repair cartilage has resulted in significant socioeconomic pressures. Polysaccharide materials have recently been widely used for cartilage tissue repair due to their excellent cell loading, biocompatibility, and chemical modifiability. They also provide a suitable microenvironment for cartilage repair and regeneration. In this Review, we summarize the techniques used clinically for cartilage repair, focusing on polysaccharides, polysaccharides for cartilage repair, and the differences between these and other materials. In addition, we summarize the techniques of tissue engineering strategies for cartilage repair and provide an outlook on developing next-generation cartilage repair and regeneration materials from polysaccharides. This Review will provide theoretical guidance for developing polysaccharide-based cartilage repair and regeneration materials with clinical applications for cartilage tissue repair and regeneration.
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Affiliation(s)
- Heng An
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Meng Zhang
- Department of Orthopaedics and Trauma Peking University People's Hospital, Beijing 100044, China
| | - Zhen Gu
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xiangyu Jiao
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yinglei Ma
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhe Huang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yongqiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | | | - Peixun Zhang
- Department of Orthopaedics and Trauma Peking University People's Hospital, Beijing 100044, China
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2
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Plange PNA, Aikins AR, Brobbey KJ, Kaufmann EE. Cassava microfiber-reinforced gelatin scaffold holds promise for tissue engineering by exhibiting cytocompatibility with HEK 293 cells. Exp Biol Med (Maywood) 2023; 248:936-947. [PMID: 37208900 PMCID: PMC10525406 DOI: 10.1177/15353702231168143] [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: 11/18/2022] [Accepted: 02/23/2023] [Indexed: 05/21/2023] Open
Abstract
Cellulose fiber-reinforced composite scaffolds have recently become an interesting target for biomedical and tissue engineering (TE) applications. Cassava bagasse, a fibrous solid residue obtained after the extraction of cassava starch and soluble sugars, has been explored as a potential source of cellulose and has been successfully used to enhance the mechanical properties of gelatin scaffolds for TE purposes. This study assessed the cytocompatibility of the cassava microfiber-gelatin composite scaffold using human embryonic kidney cells (HEK 293) and a breast cancer cell line (MDA MB 231) under ISO 10993-5 standards. The viability of cells within the composite scaffold was analyzed through MTT assay. The growth of HEK 293, as well as the cell morphology, was not affected by the presence of cellulose within the composite, whereas the growth of breast cancer cells appeared to be inhibited with noticeable changes in cell morphology. These findings suggest that the presence of the cassava fiber in gelatin is not cytotoxic to HEK 293 cells. Thus, the composite is suitable for TE purposes when using normal cells. On the contrary, the presence of the fiber in gelatin elicited a cytotoxic effect in MDA MB 231 cells. Thus, the composite may not be considered for three-dimensional (3D) tumor cell studies requiring cancer cell growth. However, further studies are required to explore the use of the fiber from cassava bagasse for its anticancer cell properties, as observed in this study.
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Affiliation(s)
- Portia Nana Adjoa Plange
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, Accra 0233, Ghana
| | - Anastasia Rosebud Aikins
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Accra 0233, Ghana
- West African Centre for Cell Biology of Infectious Pathogens, University of Ghana, Accra 0233, Ghana
| | - Kofi J Brobbey
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, Accra 0233, Ghana
- Department of Physics and School of Resource Wisdom, University of Jyväskylä, Jyväskylä FI-40014, Finland
| | - Elsie Effah Kaufmann
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, Accra 0233, Ghana
- Department of Orthotics and Prosthetics, School of Allied Health Sciences, University of Health and Allied Sciences, Ho PMB 31, Ghana
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Surgical cotton microfibers loaded with proteins and apatite: A potential platform for bone tissue engineering. Int J Biol Macromol 2023; 236:123812. [PMID: 36854368 DOI: 10.1016/j.ijbiomac.2023.123812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/13/2023] [Accepted: 02/19/2023] [Indexed: 02/28/2023]
Abstract
Tissue engineering has emerged as the best alternative to replacing damaged tissue/organs. However, the cost of scaffold materials continues to be a significant obstacle; thus, developing inexpensive scaffolds is strongly encouraged. In this study, cellulose microfibers (C), gelatin (G), egg white (EW), and nanohydroxyapatite (nHA) were assembled into a quaternary scaffold using EDC-NHS crosslinking, followed by freeze-drying method. Cellulose microfibers as a scaffold have only received a limited amount of research due to the absence of an intrinsic three-dimensional structure. Gelatin, more likely to interact chemically with collagen, was used to provide a stable structure to the cellulose microfibers. EW was supposed to provide the scaffold with numerous cell attachment sites. nHA was chosen to enhance the scaffold's bone-bonding properties. Physico-chemical, mechanical, and biological characterization of scaffolds were studied. In-vitro using MG-63 cells and in-ovo studies revealed that all scaffolds were biocompatible. The results of the DPPH assay demonstrate the ability of CGEWnHA to reduce free radicals. The CGEWnHA scaffold exhibits the best properties with 56.84 ± 28.45 μm average pore size, 75 ± 1.4 % porosity, 39.23 % weight loss, 109.19 ± 0.98 kPa compressive modulus, and 1.72 Ca/P ratio. As a result, the constructed CGEWnHA scaffold appears to be a viable choice for BTE applications.
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Chauhan A, Alam MA, Kaur A, Malviya R. Advancements and Utilizations of Scaffolds in Tissue Engineering and Drug Delivery. Curr Drug Targets 2023; 24:13-40. [PMID: 36221880 DOI: 10.2174/1389450123666221011100235] [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: 01/05/2022] [Revised: 03/02/2022] [Accepted: 03/09/2022] [Indexed: 11/22/2022]
Abstract
The drug development process requires a thorough understanding of the scaffold and its three-dimensional structure. Scaffolding is a technique for tissue engineering and the formation of contemporary functioning tissues. Tissue engineering is sometimes referred to as regenerative medicine. They also ensure that drugs are delivered with precision. Information regarding scaffolding techniques, scaffolding kinds, and other relevant facts, such as 3D nanostructuring, are discussed in depth in this literature. They are specific and demonstrate localized action for a specific reason. Scaffold's acquisition nature and flexibility make it a new drug delivery technology with good availability and structural parameter management.
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Affiliation(s)
- Akash Chauhan
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Md Aftab Alam
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Awaneet Kaur
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
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Fabrication of hydrogels with adjustable mechanical properties through 3D cell-laden printing technology. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128980] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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John JV, McCarthy A, Karan A, Xie J. Electrospun Nanofibers for Wound Management. CHEMNANOMAT : CHEMISTRY OF NANOMATERIALS FOR ENERGY, BIOLOGY AND MORE 2022; 8:e202100349. [PMID: 35990019 PMCID: PMC9384963 DOI: 10.1002/cnma.202100349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Indexed: 06/15/2023]
Abstract
Electrospun nanofibers show great potential in biomedical applications. This mini review article traces the recent advances in electrospun nanofibers for wound management via various approaches. Initially, we provide a short note on the four phases of wound healing, including hemostasis, inflammation, proliferation, and remodeling. Then, we state how the nanofiber dressings can stop bleeding and reduce the pain. Following that, we discuss the delivery of therapeutics and cells using different types of nanofibers for enhancing cell migration, angiogenesis, and re-epithelialization, resulting in the promotion of wound healing. Finally, we present the conclusions and future perspectives regarding the use of electrospun nanofibers for wound management.
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Affiliation(s)
- Johnson V John
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198 (USA)
| | - Alec McCarthy
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198 (USA)
| | - Anik Karan
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198 (USA)
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198 (USA)
- Department of Mechanical and Materials Engineering, College of Engineering, University of Nebraska Lincoln, Lincoln, NE 68588 (USA)
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Novel recycling of pineapple leaves into cellulose microfibers by two-step grinding of ball milling and high-speed rotor–stator homogenization. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03081-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Hong S, Song JM. 3D bioprinted drug-resistant breast cancer spheroids for quantitative in situ evaluation of drug resistance. Acta Biomater 2022; 138:228-239. [PMID: 34718182 DOI: 10.1016/j.actbio.2021.10.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022]
Abstract
Drug-resistant cancer spheroids were fabricated by three-dimensional (3D) bioprinting for the quantitative evaluation of drug resistance of cancer cells, which is a very important issue in cancer treatment. Cancer spheroids have received great attention as a powerful in vitro model to replace animal experiments because of their ability to mimic the tumor microenvironment. In this work, the extrusion printing of gelatin-alginate hydrogel containing MCF-7 breast cancer stem cells successfully provided 3D growth of many single drug-resistant breast cancer spheroids in a cost-effective 3D-printed mini-well dish. The drug-resistant MCF-7 breast cancer spheroids were able to maintain their drug-resistant phenotype of CD44high/CD24low/ALDH1high in the gelatin-alginate media during 3D culture and exhibited higher expression levels of drug resistance markers, such as GRP78 chaperon and ABCG2 transporter, than bulk MCF-7 breast cancer spheroids. Furthermore, the effective concentration 50 (EC50) values for apoptotic and necrotic spheroid death could be directly determined from the 3D printed-gelatin-alginate gel matrix based on in situ 3D fluorescence imaging of cancer spheroids located out of the focal point and on the focal point. The EC50 values of anti-tumor agents (camptothecin and paclitaxel) for apoptotic and necrotic drug-resistant cancer spheroid death were higher than those for bulk cancer spheroid death, indicating a greater drug resistance. STATEMENT OF SIGNIFICANCE: This study proposed a novel 3D bioprinting-based drug screening model, to quantitatively evaluate the efficacy of anticancer drugs using drug-resistant MCF-7 breast cancer spheroids formed within a 3D-printed hydrogel. Quantitative determination of anticancer drug efficacy using EC50, which is extremely important in drug discovery, was achieved by 3D printing that enables concurrent growth of many single spheroids efficiently. This study verified whether drug-resistant cancer spheroids grown within 3D-printed gelatin-alginate hydrogel could maintain and present drug resistance. Also, the EC50 values of the apoptotic and necrotic cell deaths were directly acquired in 3D-embedded spheroids based on in situ fluorescence imaging. This platform provides a single-step straightforward strategy to cultivate and characterize drug-resistant spheroids to facilitate anticancer drug screening.
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Rostamitabar M, Abdelgawad AM, Jockenhoevel S, Ghazanfari S. Drug-Eluting Medical Textiles: From Fiber Production and Textile Fabrication to Drug Loading and Delivery. Macromol Biosci 2021; 21:e2100021. [PMID: 33951278 DOI: 10.1002/mabi.202100021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/30/2021] [Indexed: 12/16/2022]
Abstract
Drug-eluting medical textiles have recently gained great attention to be used in different applications due to their cost effectiveness and unique physical and chemical properties. Using various fiber production and textile fabrication technologies, fibrous constructs with the required properties for the target drug delivery systems can be designed and fabricated. This review summarizes the current advances in the fabrication of drug-eluting medical textiles. Different fiber production methods such as melt-, wet-, and electro-spinning, and textile fabrication techniques such as knitting and weaving are explained. Moreover, various loading processes of bioactive agents to obtain drug-loaded fibrous structures with required physicochemical and morphological properties, drug delivery mechanisms, and drug release kinetics are discussed. Finally, the current applications of drug-eluting fibrous systems in wound care, tissue engineering, and transdermal drug delivery are highlighted.
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Affiliation(s)
- Matin Rostamitabar
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
| | - Abdelrahman M Abdelgawad
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands
| | - Stefan Jockenhoevel
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
| | - Samaneh Ghazanfari
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
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10
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Chinta ML, Velidandi A, Pabbathi NPP, Dahariya S, Parcha SR. Assessment of properties, applications and limitations of scaffolds based on cellulose and its derivatives for cartilage tissue engineering: A review. Int J Biol Macromol 2021; 175:495-515. [PMID: 33539959 DOI: 10.1016/j.ijbiomac.2021.01.196] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/23/2021] [Accepted: 01/28/2021] [Indexed: 01/16/2023]
Abstract
Cartilage is a connective tissue, which is made up of ~80% of water. It is alymphatic, aneural and avascular with only one type of cells present, chondrocytes. They constitute about 1-5% of the entire cartilage tissue. It has a very limited capacity for spontaneous repair. Articular cartilage defects are quite common due to trauma, injury or aging and these defects eventually lead to osteoarthritis, affecting the daily activities. Tissue engineering (TE) is a promising strategy for the regeneration of articular cartilage when compared to the existing invasive treatment strategies. Cellulose is the most abundant natural polymer and has desirable properties for the development of a scaffold, which can be used for the regeneration of cartilage. This review discusses about (i) the basic science behind cartilage TE and the study of cellulose properties that can be exploited for the construction of the engineered scaffold with desired properties for cartilage tissue regeneration, (ii) about the requirement of scaffolds properties, fabrication mechanisms and assessment of cellulose based scaffolds, (iii) details about the modification of cellulose surface by employing various chemical approaches for the production of cellulose derivatives with enhanced characteristics and (iv) limitations and future research prospects of cartilage TE.
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Affiliation(s)
- Madhavi Latha Chinta
- Stem Cell Research Lab, Department of Biotechnology, National Institute of Technology, Warangal, Telangana, India
| | - Aditya Velidandi
- Department of Biotechnology, National Institute of Technology, Warangal, Telangana, India
| | | | - Swati Dahariya
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Sreenivasa Rao Parcha
- Stem Cell Research Lab, Department of Biotechnology, National Institute of Technology, Warangal, Telangana, India.
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Amaly N, Ma Y, El-Moghazy AY, Sun G. Copper complex formed with pyridine rings grafted on cellulose nanofibrous membranes for highly efficient lysozyme adsorption. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117086] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Singh S, Dutt D, Mishra NC. Cotton pulp for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:2094-2113. [DOI: 10.1080/09205063.2020.1793872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sandhya Singh
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, India
| | - Dharm Dutt
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, India
| | - Narayan Chand Mishra
- Polymer & Process Department, Indian Institute of Technology Roorkee, Roorkee, India
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13
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Filippi M, Born G, Chaaban M, Scherberich A. Natural Polymeric Scaffolds in Bone Regeneration. Front Bioeng Biotechnol 2020; 8:474. [PMID: 32509754 PMCID: PMC7253672 DOI: 10.3389/fbioe.2020.00474] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Despite considerable advances in microsurgical techniques over the past decades, bone tissue remains a challenging arena to obtain a satisfying functional and structural restoration after damage. Through the production of substituting materials mimicking the physical and biological properties of the healthy tissue, tissue engineering strategies address an urgent clinical need for therapeutic alternatives to bone autografts. By virtue of their structural versatility, polymers have a predominant role in generating the biodegradable matrices that hold the cells in situ to sustain the growth of new tissue until integration into the transplantation area (i.e., scaffolds). As compared to synthetic ones, polymers of natural origin generally present superior biocompatibility and bioactivity. Their assembly and further engineering give rise to a wide plethora of advanced supporting materials, accounting for systems based on hydrogels or scaffolds with either fibrous or porous architecture. The present review offers an overview of the various types of natural polymers currently adopted in bone tissue engineering, describing their manufacturing techniques and procedures of functionalization with active biomolecules, and listing the advantages and disadvantages in their respective use in order to critically compare their actual applicability potential. Their combination to other classes of materials (such as micro and nanomaterials) and other innovative strategies to reproduce physiological bone microenvironments in a more faithful way are also illustrated. The regeneration outcomes achieved in vitro and in vivo when the scaffolds are enriched with different cell types, as well as the preliminary clinical applications are presented, before the prospects in this research field are finally discussed. The collection of studies herein considered confirms that advances in natural polymer research will be determinant in designing translatable materials for efficient tissue regeneration with forthcoming impact expected in the treatment of bone defects.
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Affiliation(s)
- Miriam Filippi
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Gordian Born
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Mansoor Chaaban
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Arnaud Scherberich
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Unal S, Arslan S, Karademir Yilmaz B, Kazan D, Oktar FN, Gunduz O. Glioblastoma cell adhesion properties through bacterial cellulose nanocrystals in polycaprolactone/gelatin electrospun nanofibers. Carbohydr Polym 2020; 233:115820. [DOI: 10.1016/j.carbpol.2019.115820] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/28/2019] [Accepted: 12/30/2019] [Indexed: 12/22/2022]
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15
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Singh S, Dutt D, Kaur P, Singh H, Mishra NC. Microfibrous paper scaffold for tissue engineering application. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1091-1106. [DOI: 10.1080/09205063.2020.1740965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sandhya Singh
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, India
| | - Dharam Dutt
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, India
| | - Parminder Kaur
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
| | - Hemant Singh
- Department of Polymer & Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India
| | - Narayan Chand Mishra
- Department of Polymer & Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India
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16
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Salama A, Abou-Zeid RE, Cruz-Maya I, Guarino V. Soy protein hydrolysate grafted cellulose nanofibrils with bioactive signals for bone repair and regeneration. Carbohydr Polym 2020; 229:115472. [PMID: 31826419 DOI: 10.1016/j.carbpol.2019.115472] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/29/2019] [Accepted: 10/13/2019] [Indexed: 01/10/2023]
Abstract
TEMPO oxidized cellulose nanofibers (T-CNF) were prepared from cellulose pulp which is extracted from bagasse. Soy protein hydrolysate (SPH) was grafted on T-CNF via amidation of carboxylic groups. Biomineralization was, then, assessed via calcium phosphates (CaP) precipitation in twice-simulated body fluid until formation of a new bioactive material. Protein was efficiently grafted without alteration of morphology and nanofibrils packing as reported by Fourier Transform infrared analysis /X Ray Diffraction /Scanning and Transmission Electron Microscopy / Atomic Force Microscopy. Highly crystalline calcium phosphate deposits - ca. 22.1% - were detected, with a Ca/P ratio equal to 1.63, in agreement with native bone apatite composition. In vitro response of human Mesenchymal Stem Cells confirmed the biocompatibility. No significant differences in terms of cell adhesion were recognized while a significant increase in cell proliferation was detected until 7 days. The presence of calcium phosphates tends to cover the nanofibrillar pattern, inducing the inhibition of cell proliferation and promoting the ex-novo precipitation of mineral phases. All the results suggest a promising use of these biomaterials in the repair and/or the regeneration of hard tissues such as bone.
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Affiliation(s)
- Ahmed Salama
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ragab E Abou-Zeid
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy; Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy.
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Xu J, Jia H, Yang N, Wang Q, Yang G, Zhang M, Xu S, Zang Y, Ma L, Jiang P, Zhou H, Wang H. High Efficiency Gas Permeability Membranes from Ethyl Cellulose Grafted with Ionic Liquids. Polymers (Basel) 2019; 11:E1900. [PMID: 31752139 PMCID: PMC6918432 DOI: 10.3390/polym11111900] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 11/17/2022] Open
Abstract
Ethyl cellulose was grafted with ionic liquids in optimal yields (62.5-64.1%) and grafting degrees (5.93-7.90%) by the esterification of the hydroxyl groups in ethyl cellulose with the carboxyl groups in ionic liquids. In IR spectra of the ethyl cellulose derivatives exhibited C=O bond stretching vibration peaks at 1760 or 1740 cm-1, confirming the formation of the ester groups and furnishing the evidence of the successful grafting of ethyl cellulose with ionic liquids. The ethyl cellulose grafted with ionic liquids could be formed into membranes by using the casting solution method. The resulting membranes exhibited good membrane forming ability and mechanical properties. The EC grafted with ionic liquids-based membranes demonstrated PCO2/PCH4 separation factors of up to 18.8, whereas the PCO2/PCH4 separation factor of 9.0 was obtained for pure EC membrane (both for CO2/CH4 mixture gas). The membranes also demonstrated an excellent gas permeability coefficient PCO2, up to 199 Barrer, which was higher than pure EC (PCO2 = 46.8 Barrer). Therefore, it can be concluded that the ionic liquids with imidazole groups are immensely useful for improving the gas separation performances of EC membranes.
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Affiliation(s)
- Jingyu Xu
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Hongge Jia
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Nan Yang
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Qingji Wang
- Daqing Oilfield Construction Design and Research Institute, XiLing Road 32, Daqing 1637241, China;
| | - Guoxing Yang
- Daqing Petrochemical Research Center, Petrochemical Research Institute, China National Petroleum Corporation, Chengxiang Road 2, Daqing 163714, China;
| | - Mingyu Zhang
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Shuangping Xu
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Yu Zang
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Liqun Ma
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Pengfei Jiang
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Hailiang Zhou
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
| | - Honghan Wang
- College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composition, College of Architecture and Civil Engineering, Qiqihar University, Wenhua Street 42, Qiqihar 161006, China; (J.X.); (M.Z.); (S.X.); (Y.Z.); (L.M.); (P.J.); (H.Z.); (H.W.)
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Darder M, Karan A, Real GD, DeCoster MA. Cellulose-based biomaterials integrated with copper-cystine hybrid structures as catalysts for nitric oxide generation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110369. [PMID: 31923961 DOI: 10.1016/j.msec.2019.110369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 10/03/2019] [Accepted: 10/24/2019] [Indexed: 11/19/2022]
Abstract
Bionanocomposite materials were developed from the assembly of polymer-coated copper-cystine high-aspect ratio structures (CuHARS) and cellulose fibers. The coating of the metal-organic materials with polyallylamine hydrochloride (PAH) allows their covalent linkage to TEMPO-oxidized cellulose by means of EDC/NHS. The resulting materials can be processed as films or macroporous foams by solvent casting and lyophilization, respectively. The films show good mechanical behavior with Young's moduli around 1.5 GPa as well as resistance in water, while the obtained foams show an open network of interconnected macropores with average diameters around 130 μm, depending on the concentration of the initial suspension, and compression modulus values around 450 kPa, similar to other reported freeze-dried nanocellulose-based aerogels. Based on these characteristics, the cellulose/PAH-CuHARS composites are promising for potential biomedical applications as implants or wound dressing materials. They have proved to be effective in the decomposition of low molecular weight S-nitrosothiols (RSNOs), similar to those existing in blood, releasing nitric oxide (NO). This effect is attributed to the presence of copper in the crystalline structure of the CuHARS building unit, which can be gradually released in the presence of redox species like ascorbic acid, typically found in blood. The resulting biomaterials can offer the interesting properties associated with NO, like antimicrobial activity as preliminary tests showed here with Escherichia coli and Staphylococcus epidermidis. In the presence of physiological concentration of RSNOs the amount of generated NO (around 360 nM) is not enough to show bactericidal effect on the studied bacteria, but it could provide other properties inherent to NO even at low concentration in the nM range like anti-inflammatory and anti-thrombotic effects. The cytotoxic effect recorded of the films on rat brain endothelial cells (BMVECs) is least significant and proves them to be friendly enough for further biological studies.
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Affiliation(s)
- Margarita Darder
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, 28049, Madrid, Spain.
| | - Anik Karan
- Cellular Neuroscience Laboratory, Biomedical Engineering, College of Engineering and Science, Louisiana Tech University, 71270, Louisiana, USA
| | - Gustavo Del Real
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de la Coruña Km 7,5, 28040, Madrid, Spain
| | - Mark A DeCoster
- Cellular Neuroscience Laboratory, Biomedical Engineering, College of Engineering and Science, Louisiana Tech University, 71270, Louisiana, USA; Cellular Neuroscience Laboratory, Institute for Micromanufacturing, College of Engineering and Science, Louisiana Tech University, 71270, Louisiana, USA
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Hasanin M, El-Henawy A, Eisa WH, El-Saied H, Sameeh M. Nano-amino acid cellulose derivatives: Eco-synthesis, characterization, and antimicrobial properties. Int J Biol Macromol 2019; 132:963-969. [PMID: 30959131 DOI: 10.1016/j.ijbiomac.2019.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/31/2019] [Accepted: 04/03/2019] [Indexed: 01/26/2023]
Abstract
Nowadays the using of eco-systems to synthesize new materials is the promising issue. In this work, new eco-synthesis method was developed to prepare antimicrobial cellulosic-amino acid base ligand and complexes with copper. The complex was characterized via different instrumental analysis (Fourier transform infrared spectroscopy (FTIR), UV-vis, differential scanning calorimetry (DSC), dynamic light scattering (DLS), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX)) as well as two antimicrobial screening tools (minimal inhibition concentration (MIC) and time required for killing). The UV-vis spectroscopic data indicates the metal to-ligand charge transfer transitions which is consistent with square planar geometry. DLS and SEM approved that the complex particles are in nano-size. Prepared complex appeared highly antimicrobial activity against all tested microbial organisms which can be described as broad spectrum antimicrobial agent. Rapid killing kinetics was beneficial in helping to resolve an infection more rapidly.
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Affiliation(s)
- Mohamed Hasanin
- Cellulose & Paper Dept., National Research Centre, El-Buhouth St., Dokki 12622, Egypt.
| | - Ahmed El-Henawy
- Chemistry Dept., Faculty of Science, Al-Azhar University, Cairo, Egypt.
| | - Wael H Eisa
- Spectroscopy Dept., Physics Division, National Research Centre, Cairo, Egypt
| | - Housni El-Saied
- Cellulose & Paper Dept., National Research Centre, El-Buhouth St., Dokki 12622, Egypt
| | - Manal Sameeh
- Chemistry Dept., Faculty of Applied Sciences, Um El Qura University, Makkah, Saudi Arabia
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20
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Afewerki S, Sheikhi A, Kannan S, Ahadian S, Khademhosseini A. Gelatin-polysaccharide composite scaffolds for 3D cell culture and tissue engineering: Towards natural therapeutics. Bioeng Transl Med 2019; 4:96-115. [PMID: 30680322 PMCID: PMC6336672 DOI: 10.1002/btm2.10124] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022] Open
Abstract
Gelatin is a promising material as scaffold with therapeutic and regenerative characteristics due to its chemical similarities to the extracellular matrix (ECM) in the native tissues, biocompatibility, biodegradability, low antigenicity, cost-effectiveness, abundance, and accessible functional groups that allow facile chemical modifications with other biomaterials or biomolecules. Despite the advantages of gelatin, poor mechanical properties, sensitivity to enzymatic degradation, high viscosity, and reduced solubility in concentrated aqueous media have limited its applications and encouraged the development of gelatin-based composite hydrogels. The drawbacks of gelatin may be surmounted by synergistically combining it with a wide range of polysaccharides. The addition of polysaccharides to gelatin is advantageous in mimicking the ECM, which largely contains proteoglycans or glycoproteins. Moreover, gelatin-polysaccharide biomaterials benefit from mechanical resilience, high stability, low thermal expansion, improved hydrophilicity, biocompatibility, antimicrobial and anti-inflammatory properties, and wound healing potential. Here, we discuss how combining gelatin and polysaccharides provides a promising approach for developing superior therapeutic biomaterials. We review gelatin-polysaccharides scaffolds and their applications in cell culture and tissue engineering, providing an outlook for the future of this family of biomaterials as advanced natural therapeutics.
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Affiliation(s)
- Samson Afewerki
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Dept. of MedicineBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02142
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
| | - Amir Sheikhi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Dept. of MedicineBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02142
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California‐Los AngelesLos AngelesCA 90095
- California NanoSystems Institute (CNSI)University of California‐Los AngelesLos AngelesCA 90095
- Dept. of BioengineeringUniversity of California‐Los AngelesLos AngelesCA 90095
| | - Soundarapandian Kannan
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Dept. of MedicineBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02142
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Nanomedicine Division, Dept. of ZoologyPeriyar UniversitySalemTamil NaduIndia
| | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California‐Los AngelesLos AngelesCA 90095
- California NanoSystems Institute (CNSI)University of California‐Los AngelesLos AngelesCA 90095
- Dept. of BioengineeringUniversity of California‐Los AngelesLos AngelesCA 90095
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Dept. of MedicineBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02142
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California‐Los AngelesLos AngelesCA 90095
- California NanoSystems Institute (CNSI)University of California‐Los AngelesLos AngelesCA 90095
- Dept. of BioengineeringUniversity of California‐Los AngelesLos AngelesCA 90095
- Dept. of Radiological Sciences, David Geffen School of MedicineUniversity of California‐Los AngelesLos AngelesCA 90095
- Dept. of Chemical and Biomolecular EngineeringUniversity of California‐Los AngelesLos AngelesCA 90095
- Dept. of Bioindustrial Technologies, College of Animal Bioscience and TechnologyKonkuk UniversitySeoulRepublic of Korea
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Wu CS, Liao HT, Tsou CH. Polyester-based green renewable eco-composites by solar energy tube processing: characterization and assessment of properties. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1628-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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22
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Curcumin loaded biomimetic composite graft for faster regeneration of skin in diabetic wounds. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liu Y, Deng L, Zhang C, Chen K, Feng F, Zhang H. Comparison of ethyl cellulose-gelatin composite films fabricated by electrospinning versus solvent casting. J Appl Polym Sci 2018. [DOI: 10.1002/app.46824] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yuyu Liu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
| | - Lingli Deng
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
| | - Cen Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
| | - Kailun Chen
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
| | - Fengqin Feng
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
| | - Hui Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of the Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of the Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science; Zhejiang University; Hangzhou 310058 China
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Ferreira LP, Gaspar VM, Mano JF. Design of spherically structured 3D in vitro tumor models -Advances and prospects. Acta Biomater 2018; 75:11-34. [PMID: 29803007 DOI: 10.1016/j.actbio.2018.05.034] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 05/17/2018] [Accepted: 05/22/2018] [Indexed: 12/29/2022]
Abstract
Three-dimensional multicellular tumor models are receiving an ever-growing focus as preclinical drug-screening platforms due to their potential to recapitulate major physiological features of human tumors in vitro. In line with this momentum, the technologies for assembly of 3D microtumors are rapidly evolving towards a comprehensive inclusion of tumor microenvironment elements. Customized spherically structured platforms, including microparticles and microcapsules, provide a robust and scalable technology to imprint unique biomolecular tumor microenvironment hallmarks into 3D in vitro models. Herein, a comprehensive overview of novel advances on the integration of tumor-ECM components and biomechanical cues into 3D in vitro models assembled in spherical shaped platforms is provided. Future improvements regarding spatiotemporal/mechanical adaptability, and degradability, during microtumors in vitro 3D culture are also critically discussed considering the realistic potential of these platforms to mimic the dynamic tumor microenvironment. From a global perspective, the production of 3D multicellular spheroids with tumor ECM components included in spherical models will unlock their potential to be used in high-throughput screening of therapeutic compounds. It is envisioned, in a near future, that a combination of spherically structured 3D microtumor models with other advanced microfluidic technologies will properly recapitulate the flow dynamics of human tumors in vitro. STATEMENT OF SIGNIFICANCE The ability to correctly mimic the complexity of the tumor microenvironment in vitro is a key aspect for the development of evermore realistic in vitro models for drug-screening and fundamental cancer biology studies. In this regard, conventional spheroid-based 3D tumor models, combined with spherically structured biomaterials, opens the opportunity to precisely recapitulate complex cell-extracellular matrix interactions and tumor compartmentalization. This review provides an in-depth focus on current developments regarding spherically structured scaffolds engineered into in vitro 3D tumor models, and discusses future advances toward all-encompassing platforms that may provide an improved in vitro/in vivo correlation in a foreseeable future.
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Affiliation(s)
- L P Ferreira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - V M Gaspar
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - J F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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25
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Hasan A, Waibhaw G, Saxena V, Pandey LM. Nano-biocomposite scaffolds of chitosan, carboxymethyl cellulose and silver nanoparticle modified cellulose nanowhiskers for bone tissue engineering applications. Int J Biol Macromol 2018; 111:923-934. [DOI: 10.1016/j.ijbiomac.2018.01.089] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 01/05/2018] [Accepted: 01/13/2018] [Indexed: 12/17/2022]
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Integration of a Copper-Containing Biohybrid (CuHARS) with Cellulose for Subsequent Degradation and Biomedical Control. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15050844. [PMID: 29693569 PMCID: PMC5981883 DOI: 10.3390/ijerph15050844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/17/2018] [Accepted: 04/20/2018] [Indexed: 11/23/2022]
Abstract
We previously described the novel synthesis of a copper high-aspect ratio structure (CuHARS) biohybrid material using cystine. While extremely stable in water, CuHARS is completely (but slowly) degradable in cellular media. Here, integration of the CuHARS into cellulose matrices was carried out to provide added control for CuHARS degradation. Synthesized CuHARS was concentrated by centrifugation and then dried. The weighed mass was re-suspended in water. CuHARS was stable in water for months without degradation. In contrast, 25 μg/mL of the CuHARS in complete cell culture media was completely degraded (slowly) in 18 days under physiological conditions. Stable integration of CuHARS into cellulose matrices was achieved through assembly by mixing cellulose micro- and nano-fibers and CuHARS in an aqueous (pulp mixture) phase, followed by drying. Additional materials were integrated to make the hybrids magnetically susceptible. The cellulose-CuHARS composite films could be transferred, weighed, and cut into usable pieces; they maintained their form after rehydration in water for at least 7 days and were compatible with cell culture studies using brain tumor (glioma) cells. These studies demonstrate utility of a CuHARS-cellulose biohybrid for applied applications including: (1) a platform for biomedical tracking and (2) integration into a 2D/3D matrix using natural products (cellulose).
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Biomaterial Scaffolds in Regenerative Therapy of the Central Nervous System. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7848901. [PMID: 29805977 PMCID: PMC5899851 DOI: 10.1155/2018/7848901] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 02/08/2023]
Abstract
The central nervous system (CNS) is the most important section of the nervous system as it regulates the function of various organs. Injury to the CNS causes impairment of neurological functions in corresponding sites and further leads to long-term patient disability. CNS regeneration is difficult because of its poor response to treatment and, to date, no effective therapies have been found to rectify CNS injuries. Biomaterial scaffolds have been applied with promising results in regeneration medicine. They also show great potential in CNS regeneration for tissue repair and functional recovery. Biomaterial scaffolds are applied in CNS regeneration predominantly as hydrogels and biodegradable scaffolds. They can act as cellular supportive scaffolds to facilitate cell infiltration and proliferation. They can also be combined with cell therapy to repair CNS injury. This review discusses the categories and progression of the biomaterial scaffolds that are applied in CNS regeneration.
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The role of titanium dioxide on the morphology, microstructure, and bioactivity of grafted cellulose/hydroxyapatite nanocomposites for a potential application in bone repair. Int J Biol Macromol 2018; 106:481-488. [DOI: 10.1016/j.ijbiomac.2017.08.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/01/2017] [Accepted: 08/04/2017] [Indexed: 11/18/2022]
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29
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Kalwar K, Hu L, Li DL, Shan D. AgNPs incorporated on deacetylated electrospun cellulose nanofibers and their effect on the antimicrobial activity. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4127] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kaleemullah Kalwar
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Lin Hu
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Da-Li Li
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Dan Shan
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
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Kirdponpattara S, Phisalaphong M, Kongruang S. Gelatin-bacterial cellulose composite sponges thermally cross-linked with glucose for tissue engineering applications. Carbohydr Polym 2017; 177:361-368. [PMID: 28962780 DOI: 10.1016/j.carbpol.2017.08.094] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/07/2017] [Accepted: 08/19/2017] [Indexed: 01/22/2023]
Abstract
Freeze-drying and thermal cross-linking techniques were used to prepare gelatin-bacterial cellulose (GB) composite sponges for potential application as scaffolds in tissue engineering. To avoid the use of toxic and costly cross-linking agents, glucose was used to cross-link the gelatin via the Maillard reaction. The effects of the weight ratio of gelatin to bacterial cellulose (BC) and the cross-linking conditions (temperature and duration) on the GB sponges were examined. An open and highly interconnected porous structure was attained for the GB sponge with a gelatin:BC weight ratio of 25:75 that was cross-linked at 140°C for 3h. Its high porosity, good swelling properties, good structural stability in water, non-toxicity and good biocompatibility against Vero cell are promising for its application as a scaffold for tissue engineering.
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Affiliation(s)
- Suchata Kirdponpattara
- Department of Chemical Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Wongsawang, Bangsue, Bangkok 10800, Thailand.
| | - Muenduen Phisalaphong
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand,.
| | - Sasithorn Kongruang
- Department of Biotechnology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand,.
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Gugutkov D, Awaja F, Belemezova K, Keremidarska M, Krasteva N, Kyurkchiev S, Gallego-Ferrer G, Seker S, Elçin AE, Elçin YM, Altankov G. Osteogenic differentiation of mesenchymal stem cells using hybrid nanofibers with different configurations and dimensionality. J Biomed Mater Res A 2017; 105:2065-2074. [PMID: 28294517 DOI: 10.1002/jbm.a.36065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 02/28/2017] [Accepted: 03/07/2017] [Indexed: 01/13/2023]
Abstract
Novel, hybrid fibrinogen/polylactic acid (FBG/PLA) nanofibers with different configuration (random vs aligned) and dimensionality (2-D vs 3-D environment) were used to control the overall behavior and the osteogenic differentiation of human adipose-derived mesenchymal stem cells (ADMSCs). Aligned nanofibers in both the 2-D and 3-D configurations are proved to be favored for osteodifferentiation. Morphologically, we found that on randomly configured nanofibers, the cells developed a stellate-like morphology with multiple projections; however, time-lapse analysis showed significantly diminished cell movements. Conversely, an elongated cell shape with advanced cell spreading and extended actin cytoskeleton accompanied with significantly increased cell mobility were observed when cells attached on aligned nanofibers. Moreover, a clear tendency for higher alkaline phosphatase activity was also found on aligned fibers when ADMSCs were switched to osteogenic induction medium. The strongest accumulation of Alizarin red (AR) and von Kossa stain at 21 days of culture in osteogenic medium were found on 3-D aligned constructs while the rest showed lower and rather undistinguishable activity. Quantitative reverse transcription-polymerase chain reaction analysis for Osteopontin (OSP) and RUNX 2 generally confirmed this trend showing favorable expression of osteogenic genes activity in 3-D environment particularly in aligned configuration. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2065-2074, 2017.
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Affiliation(s)
- Dencho Gugutkov
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
| | - Firas Awaja
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Medical University Innsbruck, Innrain 36, Innsbruck, Austria
| | | | - Milena Keremidarska
- Institute for Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Natalia Krasteva
- Institute for Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | - Gloria Gallego-Ferrer
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Sukran Seker
- Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey
| | - Ayşe Eser Elçin
- Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey
| | - Yaşar Murat Elçin
- Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey
| | - George Altankov
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
- ICREA (Institucio Catalana de Recerca i Estudis Avançats), Barcelona, Spain
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Smyth M, Fournier C, Driemeier C, Picart C, Foster EJ, Bras J. Tunable Structural and Mechanical Properties of Cellulose Nanofiber Substrates in Aqueous Conditions for Stem Cell Culture. Biomacromolecules 2017; 18:2034-2044. [DOI: 10.1021/acs.biomac.7b00209] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Megan Smyth
- CNRS, LGP2, 461 Rue de la Papeterie, 38402, Saint-Martin-d’Hères, France
- Université Grenoble Alpes, LGP2, 38000 Grenoble, France
| | - Carole Fournier
- CNRS, UMR 5628, LMGP, 38016 Grenoble, France
- Université Grenoble Alpes, Grenoble Institute of Technology, 38016 Grenoble, France
| | - Carlos Driemeier
- Centro
Nacional de Pesquisa em Energia e Materiais (CNPEM), Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), 13083-970 Campinas, São Paulo Brazil
| | - Catherine Picart
- CNRS, UMR 5628, LMGP, 38016 Grenoble, France
- Université Grenoble Alpes, Grenoble Institute of Technology, 38016 Grenoble, France
- Institut Universitaire de France, 75005 Paris, France
| | - E. Johan Foster
- Macromolecules Innovation Institute, Virginia Tech, Department of Materials Science & Engineering, 445 Old Turner Street, 203 Holden Hall, Blacksburg, VA 24061, United States
| | - Julien Bras
- CNRS, LGP2, 461 Rue de la Papeterie, 38402, Saint-Martin-d’Hères, France
- Université Grenoble Alpes, LGP2, 38000 Grenoble, France
- Institut Universitaire de France, 75005 Paris, France
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Electrically-responsive core-shell hybrid microfibers for controlled drug release and cell culture. Acta Biomater 2017; 55:434-442. [PMID: 28392307 DOI: 10.1016/j.actbio.2017.04.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/28/2017] [Accepted: 04/05/2017] [Indexed: 11/23/2022]
Abstract
It is an active research field to develop fiber-shaped smart materials for biomedical applications. Here we report the development of the multifunctional core-shell hybrid microfibers with excellent mechanical and electrical performance as a new smart biomaterial. The microfibers were synthesized using a combination of co-axial spinning with a microfluidic device and subsequent dip-coating, containing a hydrogel core of bacterial cellulose (BC) and a conductive polymer shell layer of poly(3,4-ethylenedioxythiophene) (PEDOT). The hybrid microfibers were featured with a well-controlled microscopic morphology, exhibiting enhanced mechanic properties. A model drug, diclofenac sodium, can be loaded in the core layer of the microfibers in situ during the process of synthesis. Our experiments suggested that the releasing behaviors of the drug molecules from the microfibers were enhanced by external electrical stimulation. Interestingly, we demonstrated an excellent biocompatibility and electroactivity of the hybrid microfibers for PC12 cell culture, thus promising a flexible template for the reconstruction of electrically-responsive tissues mimicking muscle fibers or nerve networks. STATEMENT OF SIGNIFICANCE Fiber-shaped biomaterials are useful in creating various functional objects from one dimensional to three-dimensional. The fabrication of microfibers with integrated physicochemical properties and bio-performance has drawn an increasing attention on researchers from chemical to biomedical. This study combined biocompatible bacterial cellulose with electroconductive poly(3,4-ethylenedioxythiophene) and further reduced them to a highly electroactive BC/PEDOT core-shell microfiber electrode for electrochemical actuator design. The result showed that the microfibers were well fabricated and the release of drugs from the microfibers was enhanced and could be controlled under electrical stimulation externally. Considering the excellent biocompatibility and electroactive toward PC12 cells, these microfibers may find use as templates for the reconstruction of fiber-shaped functional tissues that mimic muscle fibers, blood vessels or nerve networks in vivo.
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Barros RC, Gelens E, Bulten E, Tuin A, de Jong MR, Kuijer R, van Kooten TG. Self-assembled nanofiber coatings for controlling cell responses. J Biomed Mater Res A 2017; 105:2252-2265. [PMID: 28513985 DOI: 10.1002/jbm.a.36092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/22/2017] [Accepted: 04/14/2017] [Indexed: 01/29/2023]
Abstract
Nanofibers are thought to enhance cell adhesion, growth, and function. We demonstrate that the choice of building blocks in self-assembling nanofiber systems can be used to control cell behavior. The use of 2 D-coated, self-assembled nanofibers in controlling lens epithelial cells, fibroblasts, and mesenchymal stem cells was investigated, focusing on gene and protein expression related to the fibrotic response. To this end, three nanofibers with different characteristics (morphology, topography, and wettability) were compared with two standard materials frequently used in culturing cells, TCPS, and a collagen type I coating. Cell metabolic activity, cell morphology, and gene and protein expression were analyzed. The most hydrophilic nanofiber with more compact network consisting of small fibers proved to provide a beneficial 2 D environment for cell proliferation and matrix formation while decreasing the fibrotic/stress behavior in all cell lines when compared with TCPS and the collagen type I coating. This nanofiber demonstrates the potential to be used as a biomimetic coating to study the development of fibrosis through epithelial-to-mesenchymal transition. This study also shows that nanofiber structures do not enhance cell function by definition, because the physico-chemical characteristics of the nanofibers influence cell behavior as well and actually can be used to regulate cell behavior toward suboptimal performance. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2252-2265, 2017.
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Affiliation(s)
- Raquel C Barros
- Department of Biomedical Engineering, University Medical Center Groningen (UMCG), University of Groningen, Hanzeplein 1, 9713, GZ Groningen, The Netherlands
| | - Edith Gelens
- Nano Fiber Matrices B.V. (Nano-FM), Zernikepark 6-8, Groningen, 9747 AN, The Netherlands
| | - Erna Bulten
- Nano Fiber Matrices B.V. (Nano-FM), Zernikepark 6-8, Groningen, 9747 AN, The Netherlands
| | - Annemarie Tuin
- Nano Fiber Matrices B.V. (Nano-FM), Zernikepark 6-8, Groningen, 9747 AN, The Netherlands
| | - Menno R de Jong
- Nano Fiber Matrices B.V. (Nano-FM), Zernikepark 6-8, Groningen, 9747 AN, The Netherlands
| | - Roel Kuijer
- Department of Biomedical Engineering, University Medical Center Groningen (UMCG), University of Groningen, Hanzeplein 1, 9713, GZ Groningen, The Netherlands
| | - Theo G van Kooten
- Department of Biomedical Engineering, University Medical Center Groningen (UMCG), University of Groningen, Hanzeplein 1, 9713, GZ Groningen, The Netherlands
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Heydarifard S, Pan Y, Xiao H, M. Nazhad M, Shipin O. Water-resistant cellulosic filter containing non-leaching antimicrobial starch for water purification and disinfection. Carbohydr Polym 2017; 163:146-152. [DOI: 10.1016/j.carbpol.2017.01.063] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/15/2017] [Accepted: 01/17/2017] [Indexed: 11/30/2022]
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36
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Xing Q, Qian Z, Tahtinen M, Yap AH, Yates K, Zhao F. Aligned Nanofibrous Cell-Derived Extracellular Matrix for Anisotropic Vascular Graft Construction. Adv Healthc Mater 2017; 6:10.1002/adhm.201601333. [PMID: 28181412 PMCID: PMC5501312 DOI: 10.1002/adhm.201601333] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/17/2017] [Indexed: 12/16/2022]
Abstract
There is a large demand for tissue engineered vascular grafts for the application of vascular reconstruction surgery or in vitro drug screening tissue model. The extracellular matrix (ECM) composition along with the structural and mechanical anisotropy of native blood vessels is critical to their functional performance. The objective of this study is to develop a biomimetic vascular graft recapitulating the anisotropic features of native blood vessels by employing nanofibrous aligned fibroblast-derived ECM and human mesenchymal stem cells (hMSCs). The nanotopographic cues of aligned ECM direct the initial cell orientation. The subsequent maturation under circumferential stress generated by a rotating wall vessel (RWV) bioreactor further promotes anisotropic structural and mechanical properties in the graft. The circumferential tensile strength is significantly higher than longitudinal strength in bioreactor samples. Expression of smooth muscle cell specific genes, α-smooth muscle actin and calponin, in hMSCs is greatly enhanced in bioreactor samples without any biochemical stimulation. In addition, employment of premade ECM and RWV bioreactor significantly reduces the graft fabrication time to three weeks. Mimicking the ECM composition, cell phenotype, structural and mechanical anisotropy, the vascular graft presented in this study is promising for vascular reconstruction surgery or in vitro tissue model applications.
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Affiliation(s)
- Qi Xing
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Zichen Qian
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Mitchell Tahtinen
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Ai Hui Yap
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Keegan Yates
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Feng Zhao
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
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37
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Gan L, Zhao L, Zhao Y, Li K, Tong Z, Yi L, Wang X, Li Y, Tian W, He X, Zhao M, Li Y, Chen Y. Cellulose/soy protein composite-based nerve guidance conduits with designed microstructure for peripheral nerve regeneration. J Neural Eng 2016; 13:056019. [DOI: 10.1088/1741-2560/13/5/056019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Fu Q, Wang X, Si Y, Liu L, Yu J, Ding B. Scalable Fabrication of Electrospun Nanofibrous Membranes Functionalized with Citric Acid for High-Performance Protein Adsorption. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11819-29. [PMID: 27111287 DOI: 10.1021/acsami.6b03107] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Fabricating protein adsorbents with high adsorption capacity and appreciable throughput is extremely important and highly desired for the separation and purification of protein products in the biomedical and pharmaceutical industries, yet still remains a great challenge. Herein, we demonstrate the synthesis of a novel protein adsorbent by in situ functionalizing eletrospun ethylene-vinyl alcohol (EVOH) nanofibrous membranes (NFM) with critic acid (CCA). Taking advantage of the merits of large specific surface area, highly tortuous open-porous structure, abundant active carboxyl groups introduced by CCA, superior chemical stability, and robust mechanical strength, the obtained CCA-grafted EVOH NFM (EVOH-CCA NFM) present an excellent integrated protein (take lysozyme as the model protein) adsorption performance with a high capacity of 284 mg g(-1), short equilibrium time of 6 h, ease of elution, and good reusability. Meanwhile, the adsorption performance of EVOH-CCA NFM can be optimized by regulating buffer pH, ionic strength, and initial concentration of protein solutions. More importantly, a dynamic binding efficiency of 250 mg g(-1) can be achieved driven solely by the gravity of protein solution, which matches well with the demands of the high yield and energy conservation in the actual protein purification process. Furthermore, the resultant EVOH-CCA NFM also possess unique selectivity for positively charged proteins which was confirmed by the method of sodium dodecyl sulfate polyacrylamide gel electrophoresis. Significantly, the successful synthesis of such intriguing and economic EVOH-CCA NFM may provide a promising candidate for the next generation of protein adsorbents for rapid, massive, and cost-effective separation and purification of proteins.
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Affiliation(s)
- Qiuxia Fu
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Xueqin Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, China
| | - Yang Si
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, China
| | - Lifang Liu
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Jianyong Yu
- Nanofibers Research Center, Modern Textile Institute, Donghua University , Shanghai 200051, China
| | - Bin Ding
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, China
- Nanofibers Research Center, Modern Textile Institute, Donghua University , Shanghai 200051, China
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Naumenko EA, Guryanov ID, Yendluri R, Lvov YM, Fakhrullin RF. Clay nanotube-biopolymer composite scaffolds for tissue engineering. NANOSCALE 2016; 8:7257-71. [PMID: 26974658 DOI: 10.1039/c6nr00641h] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Porous biopolymer hydrogels doped at 3-6 wt% with 50 nm diameter/0.8 μm long natural clay nanotubes were produced without any cross-linkers using the freeze-drying method. The enhancement of mechanical strength (doubled pick load), higher water uptake and thermal properties in chitosan-gelatine-agarose hydrogels doped with halloysite was demonstrated. SEM and AFM imaging has shown the even distribution of nanotubes within the scaffolds. We used enhanced dark-field microscopy to visualise the distribution of halloysite nanotubes in the implantation area. In vitro cell adhesion and proliferation on the nanocomposites occur without changes in viability and cytoskeleton formation. In vivo biocompatibility and biodegradability evaluation in rats has confirmed that the scaffolds promote the formation of novel blood vessels around the implantation sites. The scaffolds show excellent resorption within six weeks after implantation in rats. Neo-vascularization observed in newly formed connective tissue placed near the scaffold allows for the complete restoration of blood flow. These phenomena indicate that the halloysite-doped scaffolds are biocompatible as demonstrated both in vitro and in vivo. The chitosan-gelatine-agarose doped clay nanotube nanocomposite scaffolds fabricated in this work are promising candidates for tissue engineering applications.
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Affiliation(s)
- Ekaterina A Naumenko
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation.
| | - Ivan D Guryanov
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation.
| | - Raghuvara Yendluri
- Institute for Micromanufacturing, Louisiana Tech University, 911 Hergot Ave., Ruston, LA 71272, USA
| | - Yuri M Lvov
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation. and Institute for Micromanufacturing, Louisiana Tech University, 911 Hergot Ave., Ruston, LA 71272, USA
| | - Rawil F Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation.
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40
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Application of cell and biomaterial-based tissue engineering methods in the treatment of cartilage, menisci and ligament injuries. INTERNATIONAL ORTHOPAEDICS 2016; 40:615-24. [PMID: 26762517 DOI: 10.1007/s00264-015-3099-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 12/23/2015] [Indexed: 02/07/2023]
Abstract
Over 20 years ago it was realized that the traditional methods of the treatment of injuries to joint components: cartilage, menisci and ligaments, did not give satisfactory results and so there is a need of employing novel, more effective therapeutic techniques. Recent advances in molecular biology, biotechnology and polymer science have led to both the experimental and clinical application of various cell types, adapting their culture conditions in order to ensure a directed differentiation of the cells into a desired cell type, and employing non-toxic and non-immunogenic biomaterial in the treatment of knee joint injuries. In the present review the current state of knowledge regarding novel cell sources, in vitro conditions of cell culture and major important biomaterials, both natural and synthetic, used in cartilage, meniscus and ligament repair by tissue engineering techniques are described, and the assets and drawbacks of their clinical application are critically evaluated.
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41
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Li Z, Lv X, Chen S, Wang B, Feng C, Xu Y, Wang H. Improved cell infiltration and vascularization of three-dimensional bacterial cellulose nanofibrous scaffolds by template biosynthesis. RSC Adv 2016. [DOI: 10.1039/c6ra07685h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A significant problem limiting the application of bacterial cellulose (BC) nanofibrous scaffolds for tissue regeneration is the nanoscale pores that inhibit cell infiltration and vascularization in their three-dimensional (3D) structure.
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Affiliation(s)
- Zhe Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Key Laboratory of Textile Science & Technology (Ministry of Education)
- College of Materials Science and Engineering
- Donghua University
- Shanghai
| | - Xiangguo Lv
- Department of Urology
- Affiliated Sixth People's Hospital
- Shanghai Jiaotong University
- Shanghai
- People's Republic of China
| | - Shiyan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Key Laboratory of Textile Science & Technology (Ministry of Education)
- College of Materials Science and Engineering
- Donghua University
- Shanghai
| | - Baoxiu Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Key Laboratory of Textile Science & Technology (Ministry of Education)
- College of Materials Science and Engineering
- Donghua University
- Shanghai
| | - Chao Feng
- Department of Urology
- Affiliated Sixth People's Hospital
- Shanghai Jiaotong University
- Shanghai
- People's Republic of China
| | - Yuemin Xu
- Department of Urology
- Affiliated Sixth People's Hospital
- Shanghai Jiaotong University
- Shanghai
- People's Republic of China
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Key Laboratory of Textile Science & Technology (Ministry of Education)
- College of Materials Science and Engineering
- Donghua University
- Shanghai
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42
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Zhu N, Shi C, Shang R, Yang C, Xu Z, Wu P. Immobilization of Acidithiobacillus ferrooxidans on cotton gauze for biological oxidation of ferrous ions in a batch bioreactor. Biotechnol Appl Biochem 2015; 64:727-734. [PMID: 26621070 DOI: 10.1002/bab.1464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 11/21/2015] [Indexed: 01/01/2023]
Abstract
The ability of Acidithiobacillus ferrooxidans to oxidize ferrous iron has been extensively studied in bioleaching to recover metal resources. Although immobilization of A. ferrooxidans is of great importance to achieve high bioleaching performance in practical application, the reported approaches of immobilization of A. ferrooxidans are still limited. This paper is attempting to develop a novel method to immobilize A. ferrooxidans by a less-costly effective carrier from zeolite, activated carbon, and cotton gauze. The results showed that cotton gauze was the most suitable carrier to immobilize A. ferrooxidans cells in comparison with zeolite and activated carbon. Acidithiobacillus ferrooxidans immobilized on the cotton gauze by gravity dehydration could achieve an average ferrous iron oxidation rate of 0.73 g/(L·h). Furthermore, the ferrous iron oxidation ratio attained in the bioreactor under batch operation was maintained above 97.83%. All results indicated that cotton gauze could be an efficient carrier for immobilizing A. ferrooxidans cells for the biooxidation of ferrous ions.
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Affiliation(s)
- Nengwu Zhu
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China.,The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China.,The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou Higher Education Mega Centre, Guangzhou, People's Republic of China
| | - Chaohong Shi
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China
| | - Ru Shang
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China
| | - Chong Yang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China
| | - Zhiguo Xu
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China
| | - Pingxiao Wu
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China.,The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, People's Republic of China.,The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou Higher Education Mega Centre, Guangzhou, People's Republic of China
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Huang JW, Lv XG, Li Z, Song LJ, Feng C, Xie MK, Li C, Li HB, Wang JH, Zhu WD, Chen SY, Wang HP, Xu YM. Urethral reconstruction with a 3D porous bacterial cellulose scaffold seeded with lingual keratinocytes in a rabbit model. ACTA ACUST UNITED AC 2015; 10:055005. [PMID: 26358641 DOI: 10.1088/1748-6041/10/5/055005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The goal of this study was to evaluate the effects of urethral reconstruction with a three-dimensional (3D) porous bacterial cellulose (BC) scaffold seeded with lingual keratinocytes in a rabbit model. A novel 3D porous BC scaffold was prepared by gelatin sponge interfering in the BC fermentation process. Rabbit lingual keratinocytes were isolated, expanded, and seeded onto 3D porous BC. BC alone (group 1, N = 10), 3D porous BC alone (group 2, N = 10), and 3D porous BC seeded with lingual keratinocytes (group 3, N = 10) were used to repair rabbit ventral urethral defects (2.0 × 0.8 cm). Scanning electron microscopy revealed that BC consisted of a compact laminate while 3D porous BC was composed of a porous sheet buttressed by a dense outer layer. The average pore diameter and porosity of the 3D porous BC were 4.23 ± 1.14 μm and 67.00 ± 6.80%, respectively. At 3 months postoperatively, macroscopic examinations and retrograde urethrograms of urethras revealed that all urethras maintained wide calibers in group 3. Strictures were found in all rabbits in groups 1 and 2. Histologically, at 1 month postoperatively, intact epithelium occurred in group 3, and discontinued epithelium was found in groups 1 and 2. However, groups 2 and 3 exhibited similar epithelial regeneration, which was superior to that of group 1 at 3 months (p < 0.05). Comparisons of smooth muscle content and endothelia density among the three groups revealed a significant increase at each time point (p < 0.05). Our results demonstrated that 3D porous BC seeded with lingual keratinocytes enhanced urethral tissue regeneration. 3D porous BC could potentially be used as an optimized scaffold for urethral reconstruction.
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Affiliation(s)
- Jian-Wen Huang
- Department of Urology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China
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Joshi MK, Tiwari AP, Pant HR, Shrestha BK, Kim HJ, Park CH, Kim CS. In Situ Generation of Cellulose Nanocrystals in Polycaprolactone Nanofibers: Effects on Crystallinity, Mechanical Strength, Biocompatibility, and Biomimetic Mineralization. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19672-83. [PMID: 26295953 DOI: 10.1021/acsami.5b04682] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Post-electrospinning treatment is a facile process to improve the properties of electrospun nanofibers for various applications. This technique is commonly used when direct electrospinning is not a suitable option to fabricate a nonwoven membrane of the desired polymer in a preferred morphology. In this study, a representative natural-synthetic hybrid of cellulose acetate (CA) and polycaprolactone (PCL) in different ratios was fabricated using an electrospinning process, and CA in the hybrid fiber was transformed into cellulose (CL) by post-electrospinning treatment via alkaline saponification. Scanning electron microscopy was employed to study the effects of polymer composition and subsequent saponification on the morphology of the nanofibers. Increasing the PCL content in the PCL/CA blend solution caused a gradual decrease in viscosity, resulting in smoother and more uniform fibers. The saponification of fibers lead to pronounced changes in the physicochemical properties. The crystallinity of the PCL in the composite fiber was varied according to the composition of the component polymers. The water contact angle was considerably decreased (from 124° to less than 20°), and the mechanical properties were greatly enhanced (Young's Modulus was improved by ≈20-30 fold, tensile strength by 3-4 fold, and tensile stress by ≈2-4 fold) compared to those of PCL and PCL/CA membranes. Regeneration of cellulose chains in the nanofibers increased the number of hydroxyl groups, which increased the hydrogen bonding, thereby improving the mechanical properties and wettability of the composite nanofibers. The improved wettability and presence of surface functional groups enhanced the ability to nucleate bioactive calcium phosphate crystals throughout the matrix when exposed to a simulated body fluid solution. Experimental results of cell viability assay, confocal microscopy, and scanning electron microscopy imaging showed that the fabricated nanofibrous membranes have excellent ability for MC3T3-E1 cell proliferation and growth. Given the versatility and widespread use of cellulose-synthetic hybrid systems in the construction of tissue-engineered scaffolds, this work provides a novel strategy to fabricate the biopolymer-based materials for applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Mahesh Kumar Joshi
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Arjun Prasad Tiwari
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | | | - Bishnu Kumar Shrestha
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Han Joo Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Department of Convergence Technology Engineering, College of engineering, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Division of Mechanical Design Engineering, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Eco-friendly machine parts design research center, Chonbuk National University , Jeonju 561-756, Republic of Korea
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45
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Lee SY, Bang S, Kim S, Jo SY, Kim BC, Hwang Y, Noh I. Synthesis and in vitro characterizations of porous carboxymethyl cellulose-poly(ethylene oxide) hydrogel film. Biomater Res 2015; 19:12. [PMID: 26331082 PMCID: PMC4552372 DOI: 10.1186/s40824-015-0033-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/03/2015] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Cellulose and its derivatives such as carboxymethyl cellulose (CMC) have been employed as a biomaterial for their diverse applications such as tissue engineering, drug delivery and other medical materials. Porosity of the scaffolds has advantages in their applications to tissue engineering such as more cell adhesion and migration leading to better tissue regeneration. After synthesis of CMC-poly(ethylene oxide) (PEO) hydrogel by mixing the solutions of both CMC-acrylate and PEO-hexa-thiols, fabrication and evaluation of a CMC-PEO gel and its film in porous form have been made for its possible applications to tissue regeneration. Physicochemical and biological properties of both CMC-PEO hydrogel and porous films have been evaluated by using physicochemical assays by SEM, FTIR and swelling behaviors as well as in vitro assays of MTT, Neutral red, BrdU, gel covering and tissue ingrowth into the pores of the CMC-PEO gel films. Degradation of CMC-PEO hydrogel was also evaluated by treating with esterase over time. RESULTS Chemical grafting of acrylate to CMC was verified by analyses of both FTIR and NMR. CMC-PEO hydrogel was obtained by mixing two precursor polymer solutions of CMC-acrylate and PEO-hexa-thiols and by transforming into a porous CMC-PEO gel film by gas forming of ammonium bicarbonate particles. The fabricated hydrogel has swollen in buffer to more than 6 times and degraded by esterase. The results of in vitro assays of live and dead, MTT, BrdU, Neutral red and gel covering on the cells showed excellent cell compatibility of CMC-PEO hydrogel and porous gel films. Furthermore the porous films showed excellent in vitro adhesion and migration of cells into their pore channels as observed by H&E and MT stains. CONCLUSIONS Both CMC-PEO hydrogel and porous gel films showed excellent biocompatibility and were expected to be a good candidate scaffold for tissue engineering.
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Affiliation(s)
- Su Yeon Lee
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Sumi Bang
- />Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Sumi Kim
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Seong Yeon Jo
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Bum-Chul Kim
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Yunjae Hwang
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
| | - Insup Noh
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
- />Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743 Republic of South Korea
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Khakalo A, Filpponen I, Johansson LS, Vishtal A, Lokanathan AR, Rojas OJ, Laine J. Using gelatin protein to facilitate paper thermoformability. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.09.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Li M, Cheng YL, Fu N, Li D, Adhikari B, Chen XD. Isolation and Characterization of Corncob Cellulose Fibers using Microwave-Assisted Chemical Treatments. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2014. [DOI: 10.1515/ijfe-2014-0052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Cellulose fibers were obtained from corncob by using microwave-assisted chemical treatments (microwave-assisted alkaline pretreatment and microwave-assisted bleaching). These treatments efficiently removed the hemicellulose and lignin from the original corncob and increased the cellulose fiber content. The morphology, chemical structure, degree of crystallinity and thermal degradation characteristics of the resultant cellulose fibers were studied by using field emission scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction and thermogravimetric analysis. These microwave-assisted chemical treatments decreased the diameter of the cellulose fibers from 25–125 µm to 10–20 µm. The crystallinity of the corncob cellulose fibers increased from 32.7% to 73% due to the chemical treatments. The degradation temperature of the cellulose fibers was >260°C. The cellulose fibers obtained from these treatments can be used as biocomposites in reinforced polymer manufacturing.
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Xing Q, Yates K, Vogt C, Qian Z, Frost MC, Zhao F. Increasing mechanical strength of gelatin hydrogels by divalent metal ion removal. Sci Rep 2014; 4:4706. [PMID: 24736500 PMCID: PMC3988488 DOI: 10.1038/srep04706] [Citation(s) in RCA: 222] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 03/28/2014] [Indexed: 01/01/2023] Open
Abstract
The usage of gelatin hydrogel is limited due to its instability and poor mechanical properties, especially under physiological conditions. Divalent metal ions present in gelatin such as Ca(2+) and Fe(2+) play important roles in the gelatin molecule interactions. The objective of this study was to determine the impact of divalent ion removal on the stability and mechanical properties of gelatin gels with and without chemical crosslinking. The gelatin solution was purified by Chelex resin to replace divalent metal ions with sodium ions. The gel was then chemically crosslinked by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). Results showed that the removal of divalent metal ions significantly impacted the formation of the gelatin network. The purified gelatin hydrogels had less interactions between gelatin molecules and form larger-pore network which enabled EDC to penetrate and crosslink the gel more efficiently. The crosslinked purified gels showed small swelling ratio, higher crosslinking density and dramatically increased storage and loss moduli. The removal of divalent ions is a simple yet effective method that can significantly improve the stability and strength of gelatin hydrogels. The in vitro cell culture demonstrated that the purified gelatin maintained its ability to support cell attachment and spreading.
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Affiliation(s)
- Qi Xing
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Keegan Yates
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Caleb Vogt
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Zichen Qian
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Megan C. Frost
- Polymer and Biomaterial Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Feng Zhao
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
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He M, Zhao Y, Duan J, Wang Z, Chen Y, Zhang L. Fast contact of solid-liquid interface created high strength multi-layered cellulose hydrogels with controllable size. ACS APPLIED MATERIALS & INTERFACES 2014; 6:1872-8. [PMID: 24405277 DOI: 10.1021/am404855q] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Novel onion-like and multi-layered tubular cellulose hydrogels were constructed, for the first time, from the cellulose solution in a 7% NaOH/12% urea aqueous solvent by changing the shape of the gel cores. In our findings, the contacting of the cellulose solution with the surface of the agarose gel rod or sphere loaded with acetic acid led to the close chain packing to form immediately a gel layer, as a result of the destruction of the cellulose inclusion complex by acid through inducing the cellulose self-aggregation. Subsequently, multi-layered cellulose hydrogels were fabricated via a multi-step interrupted gelation process. The size, layer thickness and inter-layer space of the multi-layered hydrogels could be controlled by adjusting the cellulose concentrations, the gel core diameter and the contacting time of the solid-liquid interface. The multi-layered cellulose hydrogels displayed good architectural stability and solvent resistance. Moreover, the hydrogels exhibited high compressive strength and excellent biocompatibility. L929 cells could adhere and proliferate on the surface of the layers and in interior space, showing great potential as tissue engineering scaffolds and cell culture carrier. This work opens up a new avenue for the construction of the high strength multi-layered cellulose hydrogels formed from inner to outside via a fast contact of solid-liquid interface.
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Affiliation(s)
- Meng He
- Department of Chemistry, Wuhan University , Wuhan 430072, People's Republic of China
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Study of the Effect of Grafting Method on Surface Polarity of Tempo-Oxidized Nanocellulose Using Polycaprolactone as the Modifying Compound: Esterification versus Click-Chemistry. NANOMATERIALS 2013; 3:638-654. [PMID: 28348357 PMCID: PMC5304593 DOI: 10.3390/nano3040638] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/11/2013] [Accepted: 12/06/2013] [Indexed: 11/17/2022]
Abstract
Esterification and click-chemistry were evaluated as surface modification treatments for TEMPO-oxidized nanocelluloses (TONC) using Polycaprolactone-diol (PCL) as modifying compound in order to improve the dispersion of nanofibers in organic media. These two grafting strategies were analyzed and compared. The first consists of grafting directly the PCL onto TONC, and was carried out by esterification between hydroxyl groups of PCL and carboxyl groups of TONC. The second strategy known as click-chemistry is based on the 1,3-dipolar cycloaddition reaction between azides and alkyne terminated moieties to form the triazole ring between PCL and TONC. The grafted samples were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Thermogravimetry analysis (TGA). Further, the effects of the two treatments on the surface hydrophobization of TONC were investigated by contact angle measurements. The results show that both methods confirm the success of such a modification and the click reaction was significantly more effective than esterification.
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