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Harrop ACF, Tupally KR, Pandey P, Parekh HS. Opportunities for Bioactive Glass in Gastrointestinal Conditions: A Review of Production Methodologies, Morphology, Composition, and Performance. Mol Pharm 2023; 20:5954-5980. [PMID: 37962352 DOI: 10.1021/acs.molpharmaceut.3c00188] [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] [Indexed: 11/15/2023]
Abstract
Bioactive glasses (BGs) are widely used in orthopedic and dental applications for their ability to stimulate endogenous bone formation and regeneration. BG applications more recently broadened to include soft tissue conditions, based on their ability to stimulate angiogenesis, soft tissue regeneration, and wound healing. Sol-gel synthesis has helped facilitate this expansion, allowing formulators to tailor the morphological characteristics of the BG matrix. The effectiveness of BGs in skin wound healing is viewed as a gateway for their use as both a therapeutic and drug delivery platform in other soft tissue applications, notably gastrointestinal (GI) applications, which form the focus of this review. Recent changes in international guidelines for GI conditions shifted clinical objectives from symptom management to mucosal wound healing. The additional scrutiny of proton pump inhibitor (PPI) safety, increasing burden of disease, and financial costs associated with gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), and inflammatory bowel disease (IBD) open new clinical possibilities for BG. This narrative literature review intersects materials engineering, formulation science, and clinical practice, setting it apart from prior literature. Broadly, current evidence for BG applications in GI conditions is sparse and under-developed, which this review directly addresses. It explores and synthesizes evidence that supports the potential use of sol-gel-derived BG for the efficacious treatment of soft tissue applications, with specific reference to GI conditions. An overview with comparative analysis of current BG synthesis techniques and associated challenges is presented, and influences of composition, biologically active ions, and morphological characteristics in soft tissue applications are explored. To contextualize this, sol-gel-derived BGs are proposed as a dual, tailorable therapeutic and drug delivery platform for upper and lower GI conditions. Future directions for this largely untapped area of translational research are also proposed, based on extant literature.
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Affiliation(s)
- Angus C F Harrop
- The University of Queensland, School of Pharmacy, The Pharmacy Australia Centre of Excellence, 20 Cornwall St, Woolloongabba, Queensland 4102, Australia
| | - Karnaker R Tupally
- The University of Queensland, School of Pharmacy, The Pharmacy Australia Centre of Excellence, 20 Cornwall St, Woolloongabba, Queensland 4102, Australia
| | - Preeti Pandey
- The University of Queensland, School of Pharmacy, The Pharmacy Australia Centre of Excellence, 20 Cornwall St, Woolloongabba, Queensland 4102, Australia
| | - Harendra S Parekh
- The University of Queensland, School of Pharmacy, The Pharmacy Australia Centre of Excellence, 20 Cornwall St, Woolloongabba, Queensland 4102, Australia
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Pei S, Zhou Y, Li Y, Azar T, Wang W, Kim DG, Liu XS. Instrumented nanoindentation in musculoskeletal research. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2022; 176:38-51. [PMID: 35660010 DOI: 10.1016/j.pbiomolbio.2022.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
Musculoskeletal tissues, such as bone, cartilage, and muscle, are natural composite materials that are constructed with a hierarchical structure ranging from the cell to tissue level. The component differences and structural complexity, together, require comprehensive multiscale mechanical characterization. In this review, we focus on nanoindentation testing, which is used for nanometer to sub-micrometer length scale mechanical characterization. In the following context, we will summarize studies of nanoindentation in musculoskeletal research, examine the critical factors that affect nanoindentation testing results, and briefly summarize other commonly used techniques that can be conjoined with nanoindentation for synchronized imaging and colocalized characterization.
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Affiliation(s)
- Shaopeng Pei
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Yilu Zhou
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Yihan Li
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Tala Azar
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Wenzheng Wang
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthopaedic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Do-Gyoon Kim
- Division of Orthodontics, College of Dentistry, The Ohio State University, Columbus, OH, 43210, USA
| | - X Sherry Liu
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States.
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Homaeigohar S, Li M, Boccaccini AR. Bioactive glass-based fibrous wound dressings. BURNS & TRAUMA 2022; 10:tkac038. [PMID: 36196303 PMCID: PMC9519693 DOI: 10.1093/burnst/tkac038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022]
Abstract
Abstract
Since the discovery of silicate bioactive glass (BG) by Larry Hench in 1969, different classes of BGs have been researched over decades mainly for bone regeneration. More recently, validating the beneficial influence of BGs with tailored compositions on angiogenesis, immunogenicity and bacterial infection, the applicability of BGs has been extended to soft tissue repair and wound healing. Particularly, fibrous wound dressings comprising BG particle reinforced polymer nanofibers and cotton-candy-like BG fibers have been proven to be successful for wound healing applications. Such fibrous dressing materials imitate the physical structure of skin’s extracellular matrix and release biologically active ions e.g. regenerative, pro-angiogenic and antibacterial ions, e.g. borate, copper, zinc, etc., that can provoke cellular activities to regenerate the lost skin tissue and to induce new vessels formation, while keeping an anti-infection environment. In the current review, we discuss different BG fibrous materials meant for wound healing applications and cover the relevant literature in the past decade. The production methods for BG-containing fibers are explained and as fibrous wound dressing materials, their wound healing and bactericidal mechanisms, depending on the ions they release, are discussed. The present gaps in this research area are highlighted and new strategies to address them are suggested.
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Affiliation(s)
- Shahin Homaeigohar
- University of Dundee School of Science and Engineering, , Dundee DD1 4HN, United Kingdom
| | - Meng Li
- Institute of Biomaterials , Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials , Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young's Modulus of Their Mats. Polymers (Basel) 2021; 13:polym13223932. [PMID: 34833231 PMCID: PMC8622419 DOI: 10.3390/polym13223932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/17/2022] Open
Abstract
Zirconia nanofiber mats containing filaments with the average diameter of less than 100 nm were fabricated. It is found that the hardness and Young’s modulus of the mats are sensitive to the microstructure, phase composition and average diameter of the zirconia nanofibers. The hardness and Young’s modulus of the prepared zirconia nanofiber mats vary from 0.86 to 1.67 MPa and from 133 to 362 MPa, respectively, wherein an increase in hardness is accompanied by the rise in Young’s modulus.
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Bastos-Bitencourt N, Velo M, Nascimento T, Scotti C, da Fonseca MG, Goulart L, Castellano L, Ishikiriama S, Bombonatti J, Sauro S. In Vitro Evaluation of Desensitizing Agents Containing Bioactive Scaffolds of Nanofibers on Dentin Remineralization. MATERIALS 2021; 14:ma14051056. [PMID: 33668257 PMCID: PMC7956660 DOI: 10.3390/ma14051056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 01/02/2023]
Abstract
This study evaluated the effect of the incorporation of bioactive nanofibers in desensitizing agents on dentin permeability. Sixty disks of dentin were randomly distributed in four groups (n = 15). Distribution was based on the desensitizing agents, fluoride varnish and self-etching adhesive, and the presence of nanofibers: C (self-etching adhesive Clearfil SE Bond), CN (Clearfil SE Bond with 1% nanofiber), D (Duraphat varnish), and DN (Duraphat varnish with 1% nanofiber). Dentin permeability was determined using hydraulic conductivity. For a qualitative analysis, confocal laser microscopy and scanning electron microscopy were performed. The C group showed the lowest hydraulic conductance (Lp%) (89.33), while the DN group showed the highest Lp% (116.06). No statistical significance was observed in the Lp% values in all groups after the treatment and 6% citric acid challenge (p > 0.239). In the images, the CN group presented a higher superficial and intratubular deposition. In addition, this group presented a more homogeneous dentin surface and wide occlusion of dentinal tubules than the other treatments. Despite there being no statistical differences among the treatments employed, the images showed that the CN group presented a higher surface and intratubular deposition compared to the other treatments, even after the acid challenge.
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Affiliation(s)
- Natália Bastos-Bitencourt
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP 17011-220, Brazil; (N.B.-B.); (M.V.); (C.S.); (S.I.); (J.B.)
| | - Marilia Velo
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP 17011-220, Brazil; (N.B.-B.); (M.V.); (C.S.); (S.I.); (J.B.)
| | - Tatiana Nascimento
- Center for Fuels and Materials (NPE—LACOM), Program of Post-Graduation in Chemistry, Federal University of Paraíba (PPGQ-UFPB), João Pessoa, PB 58033-455, Brazil; (T.N.); (M.G.d.F.)
- Laboratory of Nanobiotechnology (NANOS), Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, MG 38400-902, Brazil;
| | - Cassiana Scotti
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP 17011-220, Brazil; (N.B.-B.); (M.V.); (C.S.); (S.I.); (J.B.)
| | - Maria Gardennia da Fonseca
- Center for Fuels and Materials (NPE—LACOM), Program of Post-Graduation in Chemistry, Federal University of Paraíba (PPGQ-UFPB), João Pessoa, PB 58033-455, Brazil; (T.N.); (M.G.d.F.)
| | - Luiz Goulart
- Laboratory of Nanobiotechnology (NANOS), Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, MG 38400-902, Brazil;
| | - Lucio Castellano
- Human Immunology Research and Education Group (GEPIH), Technical School of Health, Federal University of Paraíba, João Pessoa, PB 58059-900, Brazil;
| | - Sergio Ishikiriama
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP 17011-220, Brazil; (N.B.-B.); (M.V.); (C.S.); (S.I.); (J.B.)
| | - Juliana Bombonatti
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP 17011-220, Brazil; (N.B.-B.); (M.V.); (C.S.); (S.I.); (J.B.)
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Department of Dentistry, Cardenal Herrera-CEU University, CEU Universities, C/Santiago Ramón y Cajal, s/n., Alfara del Patriarca, 46115 Valencia, Spain
- Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
- Correspondence: ; Tel.: +34-961-369-000
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Marques A, Miranda G, Silva F, Pinto P, Carvalho Ó. Review on current limits and potentialities of technologies for biomedical ceramic scaffolds production. J Biomed Mater Res B Appl Biomater 2020; 109:377-393. [PMID: 32924277 DOI: 10.1002/jbm.b.34706] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/28/2020] [Accepted: 08/04/2020] [Indexed: 02/06/2023]
Abstract
Osseointegration is defined by a stable and functional union between bone and a surface of a material. This phenomenon is influenced by the geometric and surface characteristics of the part where the bone cells will attach. A wide variety of studies proves that ceramic materials are strong competitors against conventional metals in the scope of bone tissue engineering. Ceramic scaffolds, porous structures that allow bone ingrowth, have been studied to enhance the osseointegration phenomenon. Geometric and dimensional parameters of the scaffold have influence in its performance as mechanical and structural supporter of bone growth. However, these parameters are conditioned by the manufacturing process by which these scaffolds are obtained. Several studies focusing on the production process of ceramic scaffolds have been developed, using 3D printing, stereolithography, selective laser sintering, green machining, robocasting, and others. The main purpose of this work is to evaluate and compare the different manufacturing processes by which ceramic scaffolds can be produced. This comparison addresses scaffold parameters like pore size, pore shape, porosity percentage, roughness, and so forth. Additionally, the different materials used in different manufacturing processes are also mentioned and discussed given its influence on a successful osseointegration while simultaneously displaying adequate mechanical properties. After making a screening on the available ceramic scaffolds manufacturing processes, several examples are presented, proving the potential of each of these manufacturing process for a given scaffold geometry.
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Affiliation(s)
- Ana Marques
- Center for MicroElectroMechanical Systems (CMEMS), University of Minho, Campus de Azurém, Guimarães, Portugal
| | - Georgina Miranda
- Center for MicroElectroMechanical Systems (CMEMS), University of Minho, Campus de Azurém, Guimarães, Portugal
| | - Filipe Silva
- Center for MicroElectroMechanical Systems (CMEMS), University of Minho, Campus de Azurém, Guimarães, Portugal
| | - Paulo Pinto
- Center for MicroElectroMechanical Systems (CMEMS), University of Minho, Campus de Azurém, Guimarães, Portugal
| | - Óscar Carvalho
- Center for MicroElectroMechanical Systems (CMEMS), University of Minho, Campus de Azurém, Guimarães, Portugal
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Du Z, Zhao Z, Liu H, Liu X, Zhang X, Huang Y, Leng H, Cai Q, Yang X. Macroporous scaffolds developed from CaSiO 3 nanofibers regulating bone regeneration via controlled calcination. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:111005. [PMID: 32487409 DOI: 10.1016/j.msec.2020.111005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 03/18/2020] [Accepted: 04/20/2020] [Indexed: 01/31/2023]
Abstract
Calcium silicate (CS) is envisioned as a good substrate for bone tissue engineering applications because it can provide bioactive ions like Ca2+ and Si4+ to promote bone regeneration. Calcination temperature is a critical factor in determining the crystallinity of CS ceramic, which subsequently influences its degradation and ion release behaviors. To investigate the effect of calcination temperature on the capacity of CS in inducing bone regeneration, CS nanofibers were fabricated via electrospinning of precursor sol-gel and subsequent sintering at 800 °C, 1000 °C or 1200 °C. As the calcination temperature was increased, the obtained CS nanofibers displayed higher crystallinity and slower degradation rate. The CS nanofibers calcined at 800 °C (800 m) would like to cause high pH (>9) in cell culture medium due to its rapid ion release rate, displaying adverse effect on cell viability. Among all the preparations, it was found the CS nanofibers calcined at 1000 °C (1000 m) demonstrated the strongest promotion effect on the osteogenic differentiation of bone marrow mesenchymal stromal cells. To facilitate in vivo implantation, the CS nanofibers were shaped into three-dimensional macroporous scaffolds and coated with gelatin to improve their mechanical stability. By implanting the scaffolds into rat calvarial defects, it was confirmed the scaffold made of CS nanofibers calcined at 1000 °C was able to enhance new bone formation more efficiently than the scaffolds made of CS nanofibers calcined at 800 °C or 1200 °C. To summarize, calcination temperature could be an effective and useful tool applied to produce CS bioceramic substrates with improved potential in enhancing osteogenesis by regulating their degradation and bioactive ion release behaviors.
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Affiliation(s)
- Zhiyun Du
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zhenda Zhao
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China
| | - Huanhuan Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xue Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xu Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Huijie Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China.
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
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Vuong BX. Effect of heating treatment on structure and bioactivity of sol-gel bio-glass. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bui Xuan Vuong
- Sai Gon University, 273 An Duong Vuong, District 5; Ho Chi Minh City 700000 Viet Nam
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Granel H, Bossard C, Nucke L, Wauquier F, Rochefort GY, Guicheux J, Jallot E, Lao J, Wittrant Y. Optimized Bioactive Glass: the Quest for the Bony Graft. Adv Healthc Mater 2019; 8:e1801542. [PMID: 30941912 DOI: 10.1002/adhm.201801542] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/25/2019] [Indexed: 12/21/2022]
Abstract
Technological advances have provided surgeons with a wide range of biomaterials. Yet improvements are still to be made, especially for large bone defect treatment. Biomaterial scaffolds represent a promising alternative to autologous bone grafts but in spite of the numerous studies carried out on this subject, no biomaterial scaffold is yet completely satisfying. Bioactive glass (BAG) presents many qualifying characteristics but they are brittle and their combination with a plastic polymer appears essential to overcome this drawback. Recent advances have allowed the synthesis of organic-inorganic hybrid scaffolds combining the osteogenic properties of BAG and the plastic characteristics of polymers. Such biomaterials can now be obtained at room temperature allowing organic doping of the glass/polymer network for a homogeneous delivery of the doping agent. Despite these new avenues, further studies are required to highlight the biological properties of these materials and particularly their behavior once implanted in vivo. This review focuses on BAG with a particular interest in their combination with polymers to form organic-inorganic hybrids for the design of innovative graft strategies.
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Affiliation(s)
- Henri Granel
- INRA, UMR 1019, UNH, CRNH Auvergne F‐63009 Clermont‐Ferrand France
- Université d'Auvergne, Unité de Nutrition HumaineClermont Université BP 10448 F‐63000 Clermont‐Ferrand France
| | - Cédric Bossard
- CNRS/IN2P3, Laboratoire de Physique de ClermontUniversité Clermont Auvergne BP 10448 F‐63000 Clermont‐Ferrand France
| | - Lisa Nucke
- Helmholtz‐Zentrum Dresden‐RossendorfInstitute of Ressource Ecology‐Bautzner Landstraße 400 01328 Dresden Germany
| | - Fabien Wauquier
- INRA, UMR 1019, UNH, CRNH Auvergne F‐63009 Clermont‐Ferrand France
- Université d'Auvergne, Unité de Nutrition HumaineClermont Université BP 10448 F‐63000 Clermont‐Ferrand France
| | - Gael Y. Rochefort
- Faculté de Chirurgie Dentaire, Paris Descartes, EA2496, Laboratoires PathologiesImagerie et Biothérapies orofaciales 1 rue Maurice Arnoux 92120 Montrouge France
| | - Jérôme Guicheux
- Inserm, UMR 1229, RMeSRegenerative Medicine and SkeletonUniversité de Nantes, Oniris Nantes, F‐44042 France
- UFR OdontologieUniversité de Nantes Nantes, F‐44042, France
- CHU Nantes, PHU4 OTONNNantes, F‐44093, France
| | - Edouard Jallot
- CNRS/IN2P3, Laboratoire de Physique de ClermontUniversité Clermont Auvergne BP 10448 F‐63000 Clermont‐Ferrand France
| | - Jonathan Lao
- CNRS/IN2P3, Laboratoire de Physique de ClermontUniversité Clermont Auvergne BP 10448 F‐63000 Clermont‐Ferrand France
| | - Yohann Wittrant
- INRA, UMR 1019, UNH, CRNH Auvergne F‐63009 Clermont‐Ferrand France
- Université d'Auvergne, Unité de Nutrition HumaineClermont Université BP 10448 F‐63000 Clermont‐Ferrand France
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Nagrath M, Alhalawani A, Rahimnejad Yazdi A, Towler MR. Bioactive glass fiber fabrication via a combination of sol-gel process with electro-spinning technique. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:521-538. [PMID: 31029347 DOI: 10.1016/j.msec.2019.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 01/12/2023]
Affiliation(s)
- Malvika Nagrath
- Department of Biomedical Engineering, Faculty of Engineering and Architectural Science, Ryerson University, Toronto M5B 2K3, ON, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto M5B 1W8, ON, Canada
| | - Adel Alhalawani
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto M5B 1W8, ON, Canada; Department of Mechanical and Industrial Engineering, Faculty of Engineering and Architectural Science, Ryerson University, Toronto M5B 2K3, ON, Canada
| | - Alireza Rahimnejad Yazdi
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto M5B 1W8, ON, Canada; Department of Mechanical and Industrial Engineering, Faculty of Engineering and Architectural Science, Ryerson University, Toronto M5B 2K3, ON, Canada
| | - Mark R Towler
- Department of Biomedical Engineering, Faculty of Engineering and Architectural Science, Ryerson University, Toronto M5B 2K3, ON, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto M5B 1W8, ON, Canada; Department of Mechanical and Industrial Engineering, Faculty of Engineering and Architectural Science, Ryerson University, Toronto M5B 2K3, ON, Canada.
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11
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Mabrouk M, Kenawy SH, El-bassyouni GET, Ibrahim Soliman AAEF, Aly Hamzawy EM. Cancer Cells Treated by Clusters of Copper Oxide Doped Calcium Silicate. Adv Pharm Bull 2019; 9:102-109. [PMID: 31011564 PMCID: PMC6468231 DOI: 10.15171/apb.2019.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 10/15/2018] [Accepted: 11/12/2018] [Indexed: 11/09/2022] Open
Abstract
Purpose: Different compositions of copper oxide (CuO)-doped calcium silicate clusters were used to treat the cancer cells. Methods: The influence of CuO content on the morphology, drug delivering ability, physicochemical properties and cytotoxicity was investigated. Results: The microcrystalline structure revealed the decrement of the size from (20-36 nm) to (5-7 nm) depending on the copper content percentages. Drug delivering ability of doxycycline hyclate (Dox) was down regulated from 58% to 28%in the presence of the CuO. The inclusion of CuO and Dox didn't show any remarkable changes on the physicochemical properties of the CuO-doped calcium silicate nanoparticles. Conclusion: The CuO-doped calcium silicate sample (5 weight %) exhibited great cytotoxicity against the tested cell lines compared to the CuO-free sample. CuO-doped materials displayed significant anticancer effect; this sheds light on its implication in the treatment of cancer.
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Affiliation(s)
- Mostafa Mabrouk
- Refractories, Ceramics and Building Materials Department, National Research Centre (NRC), 33 El Behooth St. Dokki-Giza, Egypt
| | - Sayed Hamed Kenawy
- Refractories, Ceramics and Building Materials Department, National Research Centre (NRC), 33 El Behooth St. Dokki-Giza, Egypt
| | - Gehan El-Tabie El-bassyouni
- Refractories, Ceramics and Building Materials Department, National Research Centre (NRC), 33 El Behooth St. Dokki-Giza, Egypt
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12
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Fiume E, Barberi J, Verné E, Baino F. Bioactive Glasses: From Parent 45S5 Composition to Scaffold-Assisted Tissue-Healing Therapies. J Funct Biomater 2018; 9:E24. [PMID: 29547544 PMCID: PMC5872110 DOI: 10.3390/jfb9010024] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/12/2018] [Accepted: 03/13/2018] [Indexed: 12/16/2022] Open
Abstract
Nowadays, bioactive glasses (BGs) are mainly used to improve and support the healing process of osseous defects deriving from traumatic events, tumor removal, congenital pathologies, implant revisions, or infections. In the past, several approaches have been proposed in the replacement of extensive bone defects, each one with its own advantages and drawbacks. As a result, the need for synthetic bone grafts is still a remarkable clinical challenge since more than 1 million bone-graft surgical operations are annually performed worldwide. Moreover, recent studies show the effectiveness of BGs in the regeneration of soft tissues, too. Often, surgical criteria do not match the engineering ones and, thus, a compromise is required for getting closer to an ideal outcome in terms of good regeneration, mechanical support, and biocompatibility in contact with living tissues. The aim of the present review is providing a general overview of BGs, with particular reference to their use in clinics over the last decades and the latest synthesis/processing methods. Recent advances in the use of BGs in tissue engineering are outlined, where the use of porous scaffolds is gaining growing importance thanks to the new possibilities given by technological progress extended to both manufacturing processes and functionalization techniques.
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Affiliation(s)
- Elisa Fiume
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Jacopo Barberi
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Enrica Verné
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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Souza MT, Rennó ACM, Peitl O, Zanotto ED. New highly bioactive crystallization-resistant glass for tissue engineering applications. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/2053-1613/aa53b5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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14
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Shamsi M, Karimi M, Ghollasi M, Nezafati N, Shahrousvand M, Kamali M, Salimi A. In vitro proliferation and differentiation of human bone marrow mesenchymal stem cells into osteoblasts on nanocomposite scaffolds based on bioactive glass (64SiO 2-31CaO-5P 2O 5)-poly-l-lactic acid nanofibers fabricated by electrospinning method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:114-123. [PMID: 28575950 DOI: 10.1016/j.msec.2017.02.165] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/20/2017] [Accepted: 02/28/2017] [Indexed: 12/19/2022]
Abstract
Electrospinning method was employed for fabrication of SiO2-CaO-P2O5 bioactive glass (BG) nanofibers, poly-l-lactic acid (PLLA) nanofibers and nanocomposite scaffolds fabricated from as-prepared nanofibers. Characterization of the prepared nanofibers and scaffolds by XRD, FTIR, and SEM techniques revealed the formation of nanofibers with mean diameter of about 500nm and fully fibrous scaffolds with porous structure and interconnected pores. The growth, viability and proliferation of cultured human bone marrow mesenchymal stem cells in the fabricated nanofibers and bioactive glass-poly-l-lactic acid (BG-PLLA) nanocomposite scaffolds were studied using various biological assays including MTT, ALP activity, calcium deposit content, Alizarin red staining, and RT-PCR test. Based on the obtained results, incorporation of BG nanofibers in the nanocomposite scaffolds causes the better biological behavior of the scaffolds. In addition, three-dimensional and fibrous-porous structure of the scaffolds further contributes to their improved cell behavior compared to the components.
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Affiliation(s)
- M Shamsi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - M Karimi
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | - M Ghollasi
- Department of Cell and Molecular Biology, Faculty of Biological Science, Kharazmi University, Tehran, Iran
| | - N Nezafati
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | - M Shahrousvand
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875/4413, Tehran, Iran
| | - M Kamali
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - A Salimi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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15
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Fabrication of nanocomposite mat through incorporating bioactive glass particles into gelatin/poly(ε-caprolactone) nanofibers by using Box–Behnken design. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:684-693. [DOI: 10.1016/j.msec.2016.05.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/20/2016] [Accepted: 05/15/2016] [Indexed: 12/22/2022]
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16
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Preparation of Nanofibrous Structure of Mesoporous Bioactive Glass Microbeads for Biomedical Applications. MATERIALS 2016; 9:ma9060487. [PMID: 28773610 PMCID: PMC5456792 DOI: 10.3390/ma9060487] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 06/04/2016] [Accepted: 06/13/2016] [Indexed: 11/16/2022]
Abstract
A highly ordered, mesoporous (pore size 2~50 nm) bioactive glass (MBG) structure has a greater surface area and pore volume and excellent bone-forming bioactivity compared with traditional bioactive glasses (BGs). Hence, MBGs have been used in drug delivery and bone tissue engineering. MBGs can be developed as either a dense or porous block. Compared with a block, microbeads provide greater flexibility for filling different-shaped cavities and are suitable for culturing cells in vitro. In contrast, the fibrous structure of a scaffold has been shown to increase cell attachment and differentiation due to its ability to mimic the three-dimensional structure of natural extracellular matrices. Hence, the aim of this study is to fabricate MBG microbeads with a fibrous structure. First, a sol-gel/electrospinning technique was utilized to fabricate the MBG nanofiber (MBGNF) structure. Subsequently, the MBGNF microbeads (MFBs) were produced by an electrospraying technology. The results show that the diameter of the MFBs decreases when the applied voltage increases. The drug loading and release profiles and mechanisms of the MFBs were also evaluated. MFBs had a better drug entrapment efficiency, could reduce the burst release of tetracycline, and sustain the release over 10 days. Hence, the MFBs may be suitable drug carriers. In addition, the cellular attachment of MG63 osteoblast-like cells is significantly higher for MFBs than for glass microbeads after culturing for 4 h. The nanofibrous structure of MFBs could provide an appropriate environment for cellular spreading. Therefore, MFBs have great potential for use as a bone graft material in bone tissue engineering applications.
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17
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Jones JR. Reprint of: Review of bioactive glass: From Hench to hybrids. Acta Biomater 2015; 23 Suppl:S53-82. [PMID: 26235346 DOI: 10.1016/j.actbio.2015.07.019] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 08/10/2012] [Accepted: 08/14/2012] [Indexed: 02/07/2023]
Abstract
Bioactive glasses are reported to be able to stimulate more bone regeneration than other bioactive ceramics but they lag behind other bioactive ceramics in terms of commercial success. Bioactive glass has not yet reached its potential but research activity is growing. This paper reviews the current state of the art, starting with current products and moving onto recent developments. Larry Hench's 45S5 Bioglass® was the first artificial material that was found to form a chemical bond with bone, launching the field of bioactive ceramics. In vivo studies have shown that bioactive glasses bond with bone more rapidly than other bioceramics, and in vitro studies indicate that their osteogenic properties are due to their dissolution products stimulating osteoprogenitor cells at the genetic level. However, calcium phosphates such as tricalcium phosphate and synthetic hydroxyapatite are more widely used in the clinic. Some of the reasons are commercial, but others are due to the scientific limitations of the original Bioglass 45S5. An example is that it is difficult to produce porous bioactive glass templates (scaffolds) for bone regeneration from Bioglass 45S5 because it crystallizes during sintering. Recently, this has been overcome by understanding how the glass composition can be tailored to prevent crystallization. The sintering problems can also be avoided by synthesizing sol-gel glass, where the silica network is assembled at room temperature. Process developments in foaming, solid freeform fabrication and nanofibre spinning have now allowed the production of porous bioactive glass scaffolds from both melt- and sol-gel-derived glasses. An ideal scaffold for bone regeneration would share load with bone. Bioceramics cannot do this when the bone defect is subjected to cyclic loads, as they are brittle. To overcome this, bioactive glass polymer hybrids are being synthesized that have the potential to be tough, with congruent degradation of the bioactive inorganic and the polymer components. Key to this is creating nanoscale interpenetrating networks, the organic and inorganic components of which have covalent coupling between them, which involves careful control of the chemistry of the sol-gel process. Bioactive nanoparticles can also now be synthesized and their fate tracked as they are internalized in cells. This paper reviews the main developments in the field of bioactive glass and its variants, covering the importance of control of hierarchical structure, synthesis, processing and cellular response in the quest for new regenerative synthetic bone grafts. The paper takes the reader from Hench's Bioglass 45S5 to new hybrid materials that have tailorable mechanical properties and degradation rates.
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Affiliation(s)
- Julian R Jones
- Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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18
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Bian C, Lin H, Li X, Ma J, Jiang P, Qu F. Preparation of spherical macroporous poly(lactic‐co‐glycolic acid) for bone tissue regeneration. IET Nanobiotechnol 2015; 9:1-4. [DOI: 10.1049/iet-nbt.2013.0066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Chunhui Bian
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Huiming Lin
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Xiaofeng Li
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Jie Ma
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Pingping Jiang
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Fengyu Qu
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
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19
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Sachot N, Castano O, Planell JA, Engel E. Optimization of blend parameters for the fabrication of polycaprolactone-silicon based ormoglass nanofibers by electrospinning. J Biomed Mater Res B Appl Biomater 2014; 103:1287-93. [DOI: 10.1002/jbm.b.33306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/17/2014] [Accepted: 10/01/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Nadège Sachot
- Biomaterials for Regenerative Therapies Group; Institute for Bioengineering of Catalonia (IBEC); Baldiri Reixac 15-21 08028 Barcelona Spain
- CIBER de Bioingenieria; Biomateriales y Nanomedicina (CIBER-BBN); Baldiri Reixac 15-21 08028 Barcelona Spain
| | - Oscar Castano
- Biomaterials for Regenerative Therapies Group; Institute for Bioengineering of Catalonia (IBEC); Baldiri Reixac 15-21 08028 Barcelona Spain
- CIBER de Bioingenieria; Biomateriales y Nanomedicina (CIBER-BBN); Baldiri Reixac 15-21 08028 Barcelona Spain
- Materials Science and Metallurgical Engineering Dept.; Universitat Politècnica de Catalunya; 08028 Barcelona Spain
- Materials Science and Metallurgical Engineering Dept.; Universitat de Barcelona; 08028 Barcelona Spain
| | - Josep A. Planell
- Biomaterials for Regenerative Therapies Group; Institute for Bioengineering of Catalonia (IBEC); Baldiri Reixac 15-21 08028 Barcelona Spain
- CIBER de Bioingenieria; Biomateriales y Nanomedicina (CIBER-BBN); Baldiri Reixac 15-21 08028 Barcelona Spain
- Materials Science and Metallurgical Engineering Dept.; Universitat Politècnica de Catalunya; 08028 Barcelona Spain
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies Group; Institute for Bioengineering of Catalonia (IBEC); Baldiri Reixac 15-21 08028 Barcelona Spain
- CIBER de Bioingenieria; Biomateriales y Nanomedicina (CIBER-BBN); Baldiri Reixac 15-21 08028 Barcelona Spain
- Materials Science and Metallurgical Engineering Dept.; Universitat Politècnica de Catalunya; 08028 Barcelona Spain
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20
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21
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Poologasundarampillai G, Wang D, Li S, Nakamura J, Bradley R, Lee PD, Stevens MM, McPhail DS, Kasuga T, Jones JR. Cotton-wool-like bioactive glasses for bone regeneration. Acta Biomater 2014; 10:3733-46. [PMID: 24874652 DOI: 10.1016/j.actbio.2014.05.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 05/13/2014] [Accepted: 05/16/2014] [Indexed: 11/28/2022]
Abstract
Inorganic sol-gel solutions were electrospun to produce the first bioactive three-dimensional (3-D) scaffolds for bone tissue regeneration with a structure like cotton-wool (or cotton candy). This flexible 3-D fibrous structure is ideal for packing into complex defects. It also has large inter-fiber spaces to promote vascularization, penetration of cells and transport of nutrients throughout the scaffold. The 3-D fibrous structure was obtained by electrospinning, where the applied electric field and the instabilities exert tremendous force on the spinning jet, which is required to be viscoelastic to prevent jet break up. Previously, polymer binding agents were used with inorganic solutions to produce electrospun composite two-dimensional fibermats, requiring calcination to remove the polymer. This study presents novel reaction and processing conditions for producing a viscoelastic inorganic sol-gel solution that results in fibers by the entanglement of the intermolecularly overlapped nanosilica species in the solution, eliminating the need for a binder. Three-dimensional cotton-wool-like structures were only produced when solutions containing calcium nitrate were used, suggesting that the charge of the Ca(2+) ions had a significant effect. The resulting bioactive silica fibers had a narrow diameter range of 0.5-2μm and were nanoporous. A hydroxycarbonate apatite layer was formed on the fibers within the first 12h of soaking in simulated body fluid. MC3T3-E1 preosteoblast cells cultured on the fibers showed no adverse cytotoxic effect and they were observed to attach to and spread in the material.
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Affiliation(s)
| | - D Wang
- Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - S Li
- Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - J Nakamura
- Department of Frontier Materials, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - R Bradley
- School of Materials, The University of Manchester, Oxford Rd., Manchester M13 9PL, UK
| | - P D Lee
- School of Materials, The University of Manchester, Oxford Rd., Manchester M13 9PL, UK
| | - M M Stevens
- Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - D S McPhail
- Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - T Kasuga
- Department of Frontier Materials, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - J R Jones
- Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, UK
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22
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Wang D, Poologasundarampillai G, van den Bergh W, Chater RJ, Kasuga T, Jones JR, McPhail DS. Strategies for the chemical analysis of highly porous bone scaffolds using secondary ion mass spectrometry. Biomed Mater 2014; 9:015013. [DOI: 10.1088/1748-6041/9/1/015013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Hild N, Tawakoli PN, Halter JG, Sauer B, Buchalla W, Stark WJ, Mohn D. pH-dependent antibacterial effects on oral microorganisms through pure PLGA implants and composites with nanosized bioactive glass. Acta Biomater 2013; 9:9118-25. [PMID: 23816650 DOI: 10.1016/j.actbio.2013.06.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 06/18/2013] [Accepted: 06/19/2013] [Indexed: 10/26/2022]
Abstract
Biomaterials made of biodegradable poly(α-hydroxyesters) such as poly(lactide-co-glycolide) (PLGA) are known to decrease the pH in the vicinity of the implants. Bioactive glass (BG) is being investigated as a counteracting agent buffering the acidic degradation products. However, in dentistry the question arises whether an antibacterial effect is rather obtained from pure PLGA or from BG/PLGA composites, as BG has been proved to be antimicrobial. In the present study the antimicrobial properties of electrospun PLGA and BG45S5/PLGA fibres were investigated using human oral bacteria (specified with mass spectrometry) incubated for up to 24 h. BG45S5 nanoparticles were prepared by flame spray synthesis. The change in colony-forming units (CFU) of the bacteria was correlated with the pH of the medium during incubation. The morphology and structure of the scaffolds as well as the appearance of the bacteria were followed bymicroscopy. Additionally, we studied if the presence of BG45S5 had an influence on the degradation speed of the polymer. Finally, it turned out that the pH increase induced by the presence of BG45S5 in the scaffold did not last long enough to show a reduction in CFU. On the contrary, pure PLGA demonstrated antibacterial properties that should be taken into consideration when designing biomaterials for dental applications.
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24
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Polini A, Bai H, Tomsia AP. Dental applications of nanostructured bioactive glass and its composites. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2013; 5:399-410. [PMID: 23606653 PMCID: PMC3683357 DOI: 10.1002/wnan.1224] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
To improve treatments of bone or dental trauma and diseases such as osteoporosis, cancer, and infections, scientists who perform basic research are collaborating with clinicians to design and test new biomaterials for the regeneration of lost or injured tissue. Developed some 40 years ago, bioactive glass (BG) has recently become one of the most promising biomaterials, a consequence of discoveries that its unusual properties elicit specific biological responses inside the body. Among these important properties are the capability of BG to form strong interfaces with both hard and soft tissues, and its release of ions upon dissolution. Recent developments in nanotechnology have introduced opportunities for materials sciences to advance dental and bone therapies. For example, the applications for BG expand as it becomes possible to finely control structures and physicochemical properties of materials at the molecular level. Here, we review how the properties of these materials have been enhanced by the advent of nanotechnology, and how these developments are producing promising results in hard-tissue regeneration and development of innovative BG-based drug delivery systems.
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Affiliation(s)
- Alessandro Polini
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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25
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Wang D, Lin H, Jiang J, Han X, Guo W, Wu X, Jin Y, Qu F. One-pot synthesis of magnetic, macro/mesoporous bioactive glasses for bone tissue engineering. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:025004. [PMID: 27877572 PMCID: PMC5074375 DOI: 10.1088/1468-6996/14/2/025004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 03/21/2013] [Indexed: 06/06/2023]
Abstract
Magnetic and macro/mesoporous bioactive glasses were synthesized by a one-pot method via a handy salt leaching technique. It was identified to be an effective and simple synthetic strategy. The non-ionic triblock copolymer, poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (P123), was used as the structure directing agent for mesoporous structure but also as the reductant to reduce the iron source into magnetic iron oxide. The prepared materials exhibited excellent super-paramagnetic property with interconnected macroporous (200-300 μm) and mesoporous (3.4 nm) structure. Furthermore, their outstanding drug storage/release properties and rapid (5) induction of hydroxyapatite growth ability were investigated after immersing in simulated body fluid solution at 37 °C. Notably, the biocompatibility assessment confirmed that the materials obtained presented good biocompatibility and enhanced adherence of HeLa cells. Herein, the novel materials are expected to have potential application for bone tissue engineering.
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26
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Jones JR. Review of bioactive glass: from Hench to hybrids. Acta Biomater 2013; 9:4457-86. [PMID: 22922331 DOI: 10.1016/j.actbio.2012.08.023] [Citation(s) in RCA: 982] [Impact Index Per Article: 89.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 08/10/2012] [Accepted: 08/14/2012] [Indexed: 12/18/2022]
Abstract
Bioactive glasses are reported to be able to stimulate more bone regeneration than other bioactive ceramics but they lag behind other bioactive ceramics in terms of commercial success. Bioactive glass has not yet reached its potential but research activity is growing. This paper reviews the current state of the art, starting with current products and moving onto recent developments. Larry Hench's 45S5 Bioglass® was the first artificial material that was found to form a chemical bond with bone, launching the field of bioactive ceramics. In vivo studies have shown that bioactive glasses bond with bone more rapidly than other bioceramics, and in vitro studies indicate that their osteogenic properties are due to their dissolution products stimulating osteoprogenitor cells at the genetic level. However, calcium phosphates such as tricalcium phosphate and synthetic hydroxyapatite are more widely used in the clinic. Some of the reasons are commercial, but others are due to the scientific limitations of the original Bioglass 45S5. An example is that it is difficult to produce porous bioactive glass templates (scaffolds) for bone regeneration from Bioglass 45S5 because it crystallizes during sintering. Recently, this has been overcome by understanding how the glass composition can be tailored to prevent crystallization. The sintering problems can also be avoided by synthesizing sol-gel glass, where the silica network is assembled at room temperature. Process developments in foaming, solid freeform fabrication and nanofibre spinning have now allowed the production of porous bioactive glass scaffolds from both melt- and sol-gel-derived glasses. An ideal scaffold for bone regeneration would share load with bone. Bioceramics cannot do this when the bone defect is subjected to cyclic loads, as they are brittle. To overcome this, bioactive glass polymer hybrids are being synthesized that have the potential to be tough, with congruent degradation of the bioactive inorganic and the polymer components. Key to this is creating nanoscale interpenetrating networks, the organic and inorganic components of which have covalent coupling between them, which involves careful control of the chemistry of the sol-gel process. Bioactive nanoparticles can also now be synthesized and their fate tracked as they are internalized in cells. This paper reviews the main developments in the field of bioactive glass and its variants, covering the importance of control of hierarchical structure, synthesis, processing and cellular response in the quest for new regenerative synthetic bone grafts. The paper takes the reader from Hench's Bioglass 45S5 to new hybrid materials that have tailorable mechanical properties and degradation rates.
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Affiliation(s)
- Julian R Jones
- Department of Materials, Imperial College London, South Kensington Campus, London, UK.
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27
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Kim BS, Kim JS, Chung YS, Sin YW, Ryu KH, Lee J, You HK. Growth and osteogenic differentiation of alveolar human bone marrow-derived mesenchymal stem cells on chitosan/hydroxyapatite composite fabric. J Biomed Mater Res A 2012; 101:1550-8. [PMID: 23135904 DOI: 10.1002/jbm.a.34456] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 08/30/2012] [Accepted: 09/13/2012] [Indexed: 11/05/2022]
Abstract
Scaffolds can be used for tissue engineering because they can serve as templates for cell adhesion and proliferation for tissue repair. In this study, chitosan/hydroxyapatite (CS/HAp) composites were prepared by coprecipitation synthesis. Then, CS and CS/HAp fabrics were prepared by wet spinning. CS fibers with a diameter of 15 ± 1.3 μm and CS/HAp fibers with a diameter of 22 ± 1.2 μm were successfully produced; incorporation of HAp into the CS/HAp fibers was confirmed by X-ray diffraction analysis. Biological in vitro evaluations showed that human mesenchymal stem cells (hMSCs) cultured on CS/HAp fabric showed increased proliferation compared to those cultured on pure CS fabric, which was observed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, DNA content assay, and [(3) H] thymidine incorporation assay. Neither the CS nor CS/HAp scaffold exhibited any cytotoxicity to hMSCs, as shown by viability staining and cytotoxicity fluorescence image assays. After 10 days of culturing, the attachment of cells onto the scaffold was observed by scanning electron microscopy. Furthermore, under osteogenic differentiation conditions, alkaline phosphatase (ALP) activity and calcium accumulation was higher in cells cultured on the CS/HAp scaffold than in cells cultured on the CS scaffold. The mRNA expression of osteoblast markers, including ALP, osteocalcin, Co1Ia1, and runt-related transcription factor 2, was higher in cells cultured on CS/HAp than in cells cultured on the CS fabric. The results of this study indicate that the CS/HAp composite fabric may serve as a good scaffold for bone tissue engineering applications.
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Affiliation(s)
- Beom-Su Kim
- Department of Periodontology, School of Dentistry, Wonkwang University, Iksan, Jeonbuk 570-749, Korea
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Rahaman MN, Day DE, Sonny Bal B, Fu Q, Jung SB, Bonewald LF, Tomsia AP. Bioactive glass in tissue engineering. Acta Biomater 2011; 7:2355-73. [PMID: 21421084 DOI: 10.1016/j.actbio.2011.03.016] [Citation(s) in RCA: 789] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 03/10/2011] [Accepted: 03/16/2011] [Indexed: 01/18/2023]
Abstract
This review focuses on recent advances in the development and use of bioactive glass for tissue engineering applications. Despite its inherent brittleness, bioactive glass has several appealing characteristics as a scaffold material for bone tissue engineering. New bioactive glasses based on borate and borosilicate compositions have shown the ability to enhance new bone formation when compared to silicate bioactive glass. Borate-based bioactive glasses also have controllable degradation rates, so the degradation of the bioactive glass implant can be more closely matched to the rate of new bone formation. Bioactive glasses can be doped with trace quantities of elements such as Cu, Zn and Sr, which are known to be beneficial for healthy bone growth. In addition to the new bioactive glasses, recent advances in biomaterials processing have resulted in the creation of scaffold architectures with a range of mechanical properties suitable for the substitution of loaded as well as non-loaded bone. While bioactive glass has been extensively investigated for bone repair, there has been relatively little research on the application of bioactive glass to the repair of soft tissues. However, recent work has shown the ability of bioactive glass to promote angiogenesis, which is critical to numerous applications in tissue regeneration, such as neovascularization for bone regeneration and the healing of soft tissue wounds. Bioactive glass has also been shown to enhance neocartilage formation during in vitro culture of chondrocyte-seeded hydrogels, and to serve as a subchondral substrate for tissue-engineered osteochondral constructs. Methods used to manipulate the structure and performance of bioactive glass in these tissue engineering applications are analyzed.
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29
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Zhang S, Zhang X, Cai Q, Wang B, Deng X, Yang X. Microfibrous β-TCP/collagen scaffolds mimic woven bone in structure and composition. Biomed Mater 2010; 5:065005. [PMID: 20966533 DOI: 10.1088/1748-6041/5/6/065005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Woven bone, as the initial form of bone tissue, is always found in developing and repairing bone. It is thought of as a temporary scaffold for the deposition of osteogenic cells and the laying down of lamellar bone. Thus, we hypothesize that a matrix which resembles the architecture and components of woven bone can provide an osteoblastic microenvironment for bone cell growth and new bone formation. In this study, woven-bone-like beta-tricalcium phosphate (β-TCP)/collagen scaffolds were fabricated by sol-gel electrospinning and impregnating methods. Optimization studies on sol-gel synthesis and electrospinning process were conducted respectively to prepare pure β-TCP fibers with dimensions close to mineralized collagen fibrils in woven bone. The collagen-coating layer prepared by impregnation had an adhesive role that held the β-TCP fibers together, and resulted in rapid degradation and matrix mineralization in in vitro tests. MG63 osteoblast-like cells seeded on the resultant scaffolds showed three-dimensional (3D) morphologies, and merged into multicellular layers after 7 days culture. Cytotoxicity test further revealed that extracts from the resultant scaffolds could promote the proliferation of MG63 cells. Therefore, the woven-bone-like matrix that we constructed favored the attachment and proliferation of MG63 cells in three dimensions. It has great potential ability to shorten the time of formation of new bone.
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Affiliation(s)
- Shen Zhang
- The Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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Ayres CE, Jha BS, Sell SA, Bowlin GL, Simpson DG. Nanotechnology in the design of soft tissue scaffolds: innovations in structure and function. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2010; 2:20-34. [PMID: 20049828 DOI: 10.1002/wnan.55] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Engineered scaffolds function to supplement or replace injured, missing, or compromised tissue or organs. The current direction in this research area is to create scaffolds that mimic the structure and function of the native extracellular matrix (ECM). It is believed that the fabrication of a scaffold that has both structural integrity and allows for normal cellular function and interaction will bring scaffolds closer to clinical relevance. Nanotechnology innovations have aided in the development of techniques for the production of nanofiber scaffolds. The three major processing techniques, self-assembly, phase separation, and electrospinning, produce fibers that rival the size of those found in the native ECM. However, the simplicity, versatility, and scalability of electrospinning make it an attractive processing method that can be used to reproduce aspects of the complexity that characterizes the native ECM. Novel electrospinning strategies include alterations of scaffold composition and architecture, along with the addition and encapsulation of cells, pharmaceuticals and growth factors within the scaffold. This article reviews the major nanofiber fabrication technologies as well as delves into recent significant contributions to the conception of a meaningful and practical electrospun scaffold.
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Affiliation(s)
- Chantal E Ayres
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284-3067, USA
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Hong Y, Chen X, Jing X, Fan H, Guo B, Gu Z, Zhang X. Preparation, bioactivity, and drug release of hierarchical nanoporous bioactive glass ultrathin fibers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:754-758. [PMID: 20217784 DOI: 10.1002/adma.200901656] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Youliang Hong
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, PR China.
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