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Khan HM, Liao X, Sheikh BA, Wang Y, Su Z, Guo C, Li Z, Zhou C, Cen Y, Kong Q. Smart biomaterials and their potential applications in tissue engineering. J Mater Chem B 2022; 10:6859-6895. [PMID: 36069198 DOI: 10.1039/d2tb01106a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Smart biomaterials have been rapidly advancing ever since the concept of tissue engineering was proposed. Interacting with human cells, smart biomaterials can play a key role in novel tissue morphogenesis. Various aspects of biomaterials utilized in or being sought for the goal of encouraging bone regeneration, skin graft engineering, and nerve conduits are discussed in this review. Beginning with bone, this study summarizes all the available bioceramics and materials along with their properties used singly or in conjunction with each other to create scaffolds for bone tissue engineering. A quick overview of the skin-based nanocomposite biomaterials possessing antibacterial properties for wound healing is outlined along with skin regeneration therapies using infrared radiation, electrospinning, and piezoelectricity, which aid in wound healing. Furthermore, a brief overview of bioengineered artificial skin grafts made of various natural and synthetic polymers has been presented. Finally, by examining the interactions between natural and synthetic-based biomaterials and the biological environment, their strengths and drawbacks for constructing peripheral nerve conduits are highlighted. The description of the preclinical outcome of nerve regeneration in injury healed with various natural-based conduits receives special attention. The organic and synthetic worlds collide at the interface of nanomaterials and biological systems, producing a new scientific field including nanomaterial design for tissue engineering.
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Affiliation(s)
- Haider Mohammed Khan
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Xiaoxia Liao
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Bilal Ahmed Sheikh
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Yixi Wang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhixuan Su
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Chuan Guo
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Changchun Zhou
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ying Cen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Qingquan Kong
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
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Obtaining and Characterizing Composite Biomaterials of Animal Resources with Potential Applications in Regenerative Medicine. Polymers (Basel) 2022; 14:polym14173544. [PMID: 36080619 PMCID: PMC9460659 DOI: 10.3390/polym14173544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Raw materials, such as collagen and chitosan, obtained from by-products from the food industry (beef hides and crustacean exoskeletons), can be used to obtain collagen–chitosan composite biomaterials, with potential applications in regenerative medicine. Functionalization of these composite biomaterials is a possibility, thus, resulting in a molecule with potential applications in regenerative medicine, namely clotrimazole (a molecule with antibacterial, antifungal, and antitumor activity), at a mass ratio (collagen–chitosan–clotrimazole) of 1:1:0.1. This functionalized composite biomaterial has great potential for application in regenerative medicine, due to the following properties: (1) it is porous, and the pores formed are interconnected, due to the use of a mass ratio between collagen and chitosan of 1:1; (2) the size of the formed pores is between 500–50 μm; (3) between collagen and chitosan, hydrogen bonds are formed, which ensure the unity of composite biomaterial; (4) the functionalized bio-composite exhibits in vitro antimicrobial activity for Candida albicans, Staphylococcus aureus, and Staphylococcus aureus MRSA; for the latter microorganism, the antimicrobial activity is equivalent to that of the antibiotic Minocycline; (5) the proliferation tests performed on a standardized line of normal human cells with simple or composite materials obtained by lyophilization do not show cytotoxicity in the concentration range studied (10–500) μg/mL.
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Bone Morphogenetic Proteins, Carriers, and Animal Models in the Development of Novel Bone Regenerative Therapies. MATERIALS 2021; 14:ma14133513. [PMID: 34202501 PMCID: PMC8269575 DOI: 10.3390/ma14133513] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/26/2022]
Abstract
Bone morphogenetic proteins (BMPs) possess a unique ability to induce new bone formation. Numerous preclinical studies have been conducted to develop novel, BMP-based osteoinductive devices for the management of segmental bone defects and posterolateral spinal fusion (PLF). In these studies, BMPs were combined with a broad range of carriers (natural and synthetic polymers, inorganic materials, and their combinations) and tested in various models in mice, rats, rabbits, dogs, sheep, and non-human primates. In this review, we summarized bone regeneration strategies and animal models used for the initial, intermediate, and advanced evaluation of promising therapeutical solutions for new bone formation and repair. Moreover, in this review, we discuss basic aspects to be considered when planning animal experiments, including anatomical characteristics of the species used, appropriate BMP dosing, duration of the observation period, and sample size.
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Lyons JG, Plantz MA, Hsu WK, Hsu EL, Minardi S. Nanostructured Biomaterials for Bone Regeneration. Front Bioeng Biotechnol 2020; 8:922. [PMID: 32974298 PMCID: PMC7471872 DOI: 10.3389/fbioe.2020.00922] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022] Open
Abstract
This review article addresses the various aspects of nano-biomaterials used in or being pursued for the purpose of promoting bone regeneration. In the last decade, significant growth in the fields of polymer sciences, nanotechnology, and biotechnology has resulted in the development of new nano-biomaterials. These are extensively explored as drug delivery carriers and as implantable devices. At the interface of nanomaterials and biological systems, the organic and synthetic worlds have merged over the past two decades, forming a new scientific field incorporating nano-material design for biological applications. For this field to evolve, there is a need to understand the dynamic forces and molecular components that shape these interactions and influence function, while also considering safety. While there is still much to learn about the bio-physicochemical interactions at the interface, we are at a point where pockets of accumulated knowledge can provide a conceptual framework to guide further exploration and inform future product development. This review is intended as a resource for academics, scientists, and physicians working in the field of orthopedics and bone repair.
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Affiliation(s)
- Joseph G. Lyons
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute, Northwestern University, Chicago, IL, United States
| | - Mark A. Plantz
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute, Northwestern University, Chicago, IL, United States
| | - Wellington K. Hsu
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute, Northwestern University, Chicago, IL, United States
| | - Erin L. Hsu
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute, Northwestern University, Chicago, IL, United States
| | - Silvia Minardi
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute, Northwestern University, Chicago, IL, United States
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Veronesi F, Maglio M, Brogini S, Fini M. In vivo studies on osteoinduction: A systematic review on animal models, implant site, and type and postimplantation investigation. J Biomed Mater Res A 2020; 108:1834-1866. [PMID: 32297695 DOI: 10.1002/jbm.a.36949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 03/15/2020] [Accepted: 03/28/2020] [Indexed: 11/10/2022]
Abstract
Musculoskeletal diseases involving loss of tissue usually require management with bone grafts, among which autografts are still the gold standard. To overcome autograft disadvantages, the development of new scaffolds is constantly increasing, as well as the number of in vivo studies evaluating their osteoinductivity in ectopic sites. The aim of the present systematic review is to evaluate the last 10 years of osteoinduction in vivo studies. The review is focused on: (a) which type of animal model is most suitable for osteoinduction evaluation; (b) what are the most used types of scaffolds; (c) what kind of post-explant evaluation is most used. Through three websites (www.pubmed.com, www.webofknowledge.com and www.embase.com), 77 in vivo studies were included. Fifty-eight studies were conducted in small animal models (rodents) and 19 in animals of medium or large size (rabbits, dogs, goats, sheep, and minipigs). Despite the difficulty in establishing the most suitable animal model for osteoinductivity studies, small animals (in particular mice) are the most utilized. Intramuscular implantation is more frequent than subcutis, especially in large animals, and synthetic scaffolds (especially CaP ceramics) are preferred than natural ones, also in combination with cells and growth factors. Paraffin histology and histomorphometric evaluations are usually employed for postimplantation analyses.
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Affiliation(s)
- Francesca Veronesi
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Melania Maglio
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Silvia Brogini
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Milena Fini
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
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Son J, Kim J, Lee K, Hwang J, Choi Y, Seo Y, Jeon H, Kang HC, Woo HM, Kang BJ, Choi J. DNA aptamer immobilized hydroxyapatite for enhancing angiogenesis and bone regeneration. Acta Biomater 2019; 99:469-478. [PMID: 31494292 DOI: 10.1016/j.actbio.2019.08.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/28/2019] [Accepted: 08/30/2019] [Indexed: 12/15/2022]
Abstract
In this study, we developed aptamer-conjugated hydroxyapatite (Apt-HA) that promotes bone regeneration and angiogenesis. The 3R02 bivalent aptamer specific to vascular endothelial growth factor (VEGF) was grafted to the hydroxyapatite (HA) surface. Apt-HA was tested for its VEGF protein capture ability to determine the optimal aptamer concentration immobilized on the HA. Apt-HA showed higher VEGF protein capture ability, and faster growth of human umbilical vein endothelial cell (HUVEC) compared to a neat HA with no cytotoxic effects on human osteoblasts. To examine in vivo angiogenesis and bone regeneration, Apt-HA and HA were bilaterally implanted into rabbit tibial metaphyseal defects and analyzed after eight weeks using micro-CT, histology, and histomorphometry. Apt-HA showed significantly increased the volume of new bones, the percentage of bone, and the density of bone mineral in cortical bone. Apt-HA also exhibited the enhanced bone formation at the cortical region in a histomorphometric analysis. Finally, Apt-HA showed significantly increased blood vessel number compared to a neat HA. In summary, the engineered Apt-HA has potential as a bone graft material that may simultaneously promote bone regeneration and angiogenesis. STATEMENT OF SIGNIFICANCE: This work presents a functional hydroxyapatite bone graft using a DNA-based aptamer which overcomes the limitations of existing bone graft materials, which use bound signaling peptides. DNA aptamer immobilized hydroxyapatite enhances the in vitro proliferation of human umbilical vascular endothelial cells as well as in vivo angiogenesis and bone regeneration. DNA aptamer immobilized hydroxyapatite shows no cytotoxic effect on human osteoblasts.
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7
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Ramesh N, Moratti SC, Dias GJ. Hydroxyapatite-polymer biocomposites for bone regeneration: A review of current trends. J Biomed Mater Res B Appl Biomater 2017. [PMID: 28650094 DOI: 10.1002/jbm.b.33950] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bone tissue engineering has emerged as one of the most indispensable approaches to address bone trauma in the past few decades. This approach offers an efficient and a risk-free alternative to autografts and allografts by employing a combination of biomaterials and cells to promote bone regeneration. Hydroxyapatite (HA) is a ceramic biomaterial that mimics the mineral composition of bones and teeth in vertebrates. HA, commonly produced via several synthetic routes over the years has been found to exhibit good bioactivity, biocompatibility, and osteoconductivity under both in vitro and in vivo conditions. However, the brittle nature of HA restricts its usage for load bearing applications. To address this problem, HA has been used in combination with several polymers in the form of biocomposite implants to primarily improve its mechanical properties and also enhance the implants' overall performance by simultaneously exploiting the positive effects of both HA and the polymer involved in making the biocomposite. This review article summarizes the past and recent developments in the evolution of HA-polymer biocomposite implants as an "ideal" biomaterial scaffold for bone regeneration. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2046-2057, 2018.
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Affiliation(s)
- Niranjan Ramesh
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, 9054, New Zealand
| | - Stephen C Moratti
- Department of Chemistry, University of Otago, Dunedin, 9054, New Zealand
| | - George J Dias
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, 9054, New Zealand
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Miranda DG, Malmonge SM, Campos DM, Attik NG, Grosgogeat B, Gritsch K. A chitosan-hyaluronic acid hydrogel scaffold for periodontal tissue engineering. J Biomed Mater Res B Appl Biomater 2015; 104:1691-1702. [PMID: 26344054 DOI: 10.1002/jbm.b.33516] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 07/31/2015] [Accepted: 08/23/2015] [Indexed: 11/11/2022]
Abstract
The current challenge in treating periodontitis is regenerating the periodontium. This motivates tissue-engineering researchers to develop scaffolds as artificial matrices that give mechanical support for osteoblasts, cementoblasts, gingival and periodontal ligament fibroblast cells. In this study, modified hyaluronic acid (HA) and chitosan (CS) were employed to create a hybrid CS-HA hydrogel scaffold for periodontal regeneration. CS, HA, and CS-HA scaffolds were obtained by freeze-drying technique, resulting in porous structures suitable for use in tissue engineering. Scaffolds were submitted to gamma and UV-sterilization without significant morphology changes. The ATR-FTIR spectra of CS-HA hydrogels showed peaks at 377 cm-1 , 1566 cm-1 , and 1614 cm-1 , representing secondary amide, primary amine, and carboxyl acid respectively, and it was also observed the emergence of peaks at 886 cm-1 , which probably represents the Schiff base formed in the case of hybrid CS-HA hydrogels. The scaffolds presented a high rate of PBS uptake, reaching values higher than 95%. Thermal degradation of HA scaffolds was around 225°C and CS was around 285°C. The ATR-FTIR spectra and swelling degree were slightly disturbed mainly after gamma sterilization, but degradation temperature did not change after sterilization. The performance of the CS-HA hydrogel scaffolds for in vitro cell culture was tested using NIH3T3 and MG63 cell lines. The Alamar Blue test showed a significant increase in cellular viability and high CD44 expression, suggesting that the cells migrated more when seeded onto the scaffolds. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1691-1702, 2016.
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Affiliation(s)
- Diego G Miranda
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France
| | - Sônia M Malmonge
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo André, Sao Paulo, Brazil.
| | - Doris M Campos
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France
| | - Nina G Attik
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France.,Service de Consultations et de Traitements Dentaires (U.F. Santé Publique), Hospices Civils de Lyon, Lyon, France
| | - Kerstin Gritsch
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France.,Service de Consultations et de Traitements Dentaires (U.F. Parodontologie), Hospices Civils de Lyon, Lyon, France
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Duan S, Feng P, Gao C, Xiao T, Yu K, Shuai C, Peng S. Microstructure Evolution and Mechanical Properties Improvement in Liquid-Phase-Sintered Hydroxyapatite by Laser Sintering. MATERIALS (BASEL, SWITZERLAND) 2015; 8:1162-1175. [PMID: 28787994 PMCID: PMC5455430 DOI: 10.3390/ma8031162] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/04/2015] [Accepted: 03/11/2015] [Indexed: 11/29/2022]
Abstract
CaO-Al₂O₃-SiO₂ (CAS) as a liquid phase was introduced into hydroxyapatite (HAp) to prepare bone scaffolds. The effects of the CAS content (1, 2, 3, 4 and 5 wt%) on microstructure and mechanical properties of HAp ceramics were investigated. The optimal compression strength, fracture toughness and Vickers hardness reached 22.22 MPa, 1.68 MPa·m1/2 and 4.47 GPa when 3 wt% CAS was added, which were increased by 105%, 63% and 11% compared with those of HAp ceramics without CAS, respectively. The improvement of the mechanical properties was attributed to the improved densification, which was caused by the solid particle to rearrange during liquid phase sintering. Moreover, simulated body fluid (SBF) study indicated the HAp ceramics could maintain the mechanical properties and form a bone-like apatite layer when they were immersed in SBF. Cell culture was used to evaluate biocompatibility of the HAp ceramics. The results demonstrated MG-63 cells adhered and spread well.
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Affiliation(s)
- Songlin Duan
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China.
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Tao Xiao
- Orthopedic Biomedical Materials Institute, Central South University, Changsha 410083, China.
- Department of Orthopedics, the Second Xiangya Hospital, Central South University, Changsha 410011, China.
| | - Kun Yu
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
- Orthopedic Biomedical Materials Institute, Central South University, Changsha 410083, China.
| | - Shuping Peng
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China.
- School of Basic Medical Science, Central South University, Changsha 410078, China.
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Chan KW, Wong HM, Yeung KWK, Tjong SC. Polypropylene Biocomposites with Boron Nitride and Nanohydroxyapatite Reinforcements. MATERIALS (BASEL, SWITZERLAND) 2015; 8:992-1008. [PMID: 28787984 PMCID: PMC5455428 DOI: 10.3390/ma8030992] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 02/17/2015] [Accepted: 02/28/2015] [Indexed: 01/31/2023]
Abstract
In this study, we develop binary polypropylene (PP) composites with hexagonal boron nitride (hBN) nanoplatelets and ternary hybrids reinforced with hBN and nanohydroxyapatite (nHA). Filler hybridization is a sound approach to make novel nanocomposites with useful biological and mechanical properties. Tensile test, osteoblastic cell culture and dimethyl thiazolyl diphenyl tetrazolium (MTT) assay were employed to investigate the mechanical performance, bioactivity and biocompatibility of binary PP/hBN and ternary PP/hBN-nHA composites. The purpose is to prepare biocomposite nanomaterials with good mechanical properties and biocompatibility for replacing conventional polymer composites reinforced with large hydroxyapatite microparticles at a high loading of 40 vol%. Tensile test reveals that the elastic modulus of PP composites increases, while tensile elongation decreases with increasing hBN content. Hybridization of hBN with nHA further enhances elastic modulus of PP. The cell culture and MTT assay show that osteoblastic cells attach and proliferate on binary PP/hBN and ternary PP/hBN-20%nHA nanocomposites.
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Affiliation(s)
- Kai Wang Chan
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
| | - Hoi Man Wong
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong.
| | - Kelvin Wai Kwok Yeung
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong.
- Shenzhen Key Laboratory for Innovative Technology in Orthopedic Trauma, the University of Hong Kong Shenzhen Hospital, 1 Haiyuan 1st Road, Shenzhen 518053, China.
| | - Sie Chin Tjong
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
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Filipowska J, Pawlik J, Cholewa-Kowalska K, Tylko G, Pamula E, Niedzwiedzki L, Szuta M, Laczka M, Osyczka AM. Incorporation of sol–gel bioactive glass into PLGA improves mechanical properties and bioactivity of composite scaffolds and results in their osteoinductive properties. Biomed Mater 2014; 9:065001. [DOI: 10.1088/1748-6041/9/6/065001] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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12
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Karadzic I, Vucic V, Jokanovic V, Debeljak-Martacic J, Markovic D, Petrovic S, Glibetic M. Effects of novel hydroxyapatite-based 3D biomaterials on proliferation and osteoblastic differentiation of mesenchymal stem cells. J Biomed Mater Res A 2014; 103:350-7. [PMID: 24665062 DOI: 10.1002/jbm.a.35180] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/10/2014] [Accepted: 03/19/2014] [Indexed: 01/08/2023]
Abstract
The aim of this study was to examine the differential capacity of isolated dental pulp stem cells (SHED) cultured onto four different scaffold materials. The differential potential of isolated SHED was examined on the following scaffolds: porous hydroxyapatite (pHAP) alone or combined with three polymers [polylactic-co-glycolic acid (PLGA), alginate, and ethylene vinylacetate / ethylene vinylversatate (EVA/EVV)]. SHED were isolated by "outgrowth" method and characterized by the flow cytometry. Viability of cells grown with scaffolds was assessed by MTT and LDH assays. No significant cytotoxic effect of any of the tested materials was shown. Staining with alizarin red and estimated alkaline phosphatase activity to identify differentiation, demonstrated osteoblastic phenotype of SHED and newly deposited and mineralized extra cellular matrix (ECM) in presence of all tested scaffolds. The developed ECM seen at scanning electronic micrographs additionally confirmed the osteogenic differentiation and biocompatibility between cells and materials. In summary, all studied biomaterials are suitable carriers for proliferation and osteoblastic differentiation of dental pulp mesenchymal stem cells in vitro.
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Affiliation(s)
- Ivana Karadzic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, 11000, Serbia
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13
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Wang X, Li L, Huo W, Hou L, Zhao Z, Li W. Characterization and Stability of Tanshinone IIA Solid Dispersions with Hydroxyapatite. MATERIALS 2013; 6:805-816. [PMID: 28809341 PMCID: PMC5512800 DOI: 10.3390/ma6030805] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 02/19/2013] [Accepted: 02/28/2013] [Indexed: 11/16/2022]
Abstract
Solid dispersions of tanshinone IIA (TanIIA) using hydroxyapatite (HAp) as the dispersing carrier (TanIIA-HAp SDs) were prepared by the solvent evaporation method. The formed solid dispersions were characterized by scanning electron microscopy (SEM), differential scanning calorimetry analysis (DSC), X-ray powder diffraction (XRPD) and Fourier transforms infrared (FTIR) spectroscopy. The in vitro dissolution rate and the stability of TanIIA-HAp SDs were also evaluated. DSC and XRPD showed that TanIIA was changed from a crystalline to an amorphous form. FTIR suggested the presence of interactions between TanIIA and HAp in solid dispersions. The result of an in vitro dissolution study showed that the dissolution rate of TanIIA-HAp SDs was nearly 7.11-folds faster than free TanIIA. Data from stability studies for over one year of TanIIA-HAp SDs performed under room temperature revealed no significant differences in drug content and dissolution behavior. All these results indicated that HAp may be a promising carrier for improving the oral absorption of TanIIA.
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Affiliation(s)
- Xiaopan Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 tongjiaxiang, Nanjing 210009, China.
| | - Li Li
- Department of Pharmacy, the Second Affiliated Hospital, Nanjing Medical University, No. 121 jiangjiayuan, Nanjing 210028, China.
| | - Wei Huo
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 tongjiaxiang, Nanjing 210009, China.
| | - Lulu Hou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 tongjiaxiang, Nanjing 210009, China.
| | - Zhiying Zhao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 tongjiaxiang, Nanjing 210009, China.
| | - Weiguang Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 tongjiaxiang, Nanjing 210009, China.
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Reves BT, Bumgardner JD, Haggard WO. Fabrication of crosslinked carboxymethylchitosan microspheres and their incorporation into composite scaffolds for enhanced bone regeneration. J Biomed Mater Res B Appl Biomater 2013; 101:630-9. [DOI: 10.1002/jbm.b.32865] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 09/11/2012] [Accepted: 11/12/2012] [Indexed: 11/08/2022]
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