301
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Gupta SK, Dinda AK, Potdar PD, Mishra NC. Modification of decellularized goat-lung scaffold with chitosan/nanohydroxyapatite composite for bone tissue engineering applications. BIOMED RESEARCH INTERNATIONAL 2013; 2013:651945. [PMID: 23841083 PMCID: PMC3697275 DOI: 10.1155/2013/651945] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/26/2013] [Indexed: 01/15/2023]
Abstract
Decellularized goat-lung scaffold was fabricated by removing cells from cadaver goat-lung tissue, and the scaffold was modified with chitosan/nanohydroxyapatite composite for the purpose of bone tissue engineering applications. MTT assay with osteoblasts, seeded over the chitosan/nanohydroxyapatite-modified decellularized scaffold, demonstrated significantly higher cell growth as compared to the decellularized scaffold without modification. SEM analysis of cell-seeded scaffold, after incubation for 7 days, represented a good cell adhesion, and the cells spread over the chitosan/nanohydroxyapatite-modified decellularized scaffold. Expression of bone-tissue-specific osteocalcin gene in the osteoblast cells grown over the chitosan/nanohydroxyapatite-modified decellularized scaffold clearly signifies that the cells maintained their osteoblastic phenotype with the chitosan/nanohydroxyapatite-modified decellularized scaffold. Therefore, it can be concluded that the decellularized goat-lung scaffold-modified with chitosan/nanohydroxyapatite composite, may provide enhanced osteogenic potential when used as a scaffold for bone tissue engineering.
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Affiliation(s)
- Sweta K. Gupta
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, UP 247001, India
| | - Amit K. Dinda
- Department of Pathology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Pravin D. Potdar
- Department of Molecular Medicine & Biology, Jaslok Hospital and Research Center, Mumbai, Maharashtra 400026, India
| | - Narayan C. Mishra
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, UP 247001, India
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302
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Xie DF, Martino VP, Sangwan P, Way C, Cash GA, Pollet E, Dean KM, Halley PJ, Avérous L. Elaboration and properties of plasticised chitosan-based exfoliated nano-biocomposites. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.05.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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303
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Park H, Choi B, Nguyen J, Fan J, Shafi S, Klokkevold P, Lee M. Anionic carbohydrate-containing chitosan scaffolds for bone regeneration. Carbohydr Polym 2013; 97:587-96. [PMID: 23911489 DOI: 10.1016/j.carbpol.2013.05.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 05/08/2013] [Accepted: 05/13/2013] [Indexed: 12/13/2022]
Abstract
Scaffolds derived from naturally occurring polysaccharides have attracted significant interest in bone tissue engineering due to their excellent biocompatibility and hydrophilic nature favorable for cell attachment. In this study, we developed composite chitosan (CH) scaffolds containing anionic carbohydrate, such as chondroitin 4-sulfate (CS) or alginate (AG), with biomimetic apatite layer on their surfaces, and investigate their capacity to deliver progenitor cells (bone marrow stromal cells, BMSC) and model proteins with net-positive (histone) and net-negative charge (bovine serum albumin, BSA). The incorporation of CS or AG in CH scaffolds increased compressive modulus of the scaffolds and enhanced apatite formation. Initial burst release of histone was significantly higher than that of BSA from CH scaffold, while the addition of CS or AG in the scaffolds significantly reduced the initial burst release of histone, indicating strong electrostatic interaction between histone and negatively charged CS or AG. The apatite layer created on scaffold surfaces significantly reduced the initial burst release of both BSA and histone. Furthermore, apatite-coated scaffolds enhanced spreading, proliferation, and osteogenic differentiation of BMSC seeded on the scaffolds compared to non-coated scaffolds as assessed by live/dead and alamarBlue assays, scanning electron microscopy (SEM), alkaline phosphatase (ALP) activity, and Picrosirius red staining. This study suggests that apatite-coated CH/CS composite scaffolds have the potential as a promising osteogenic system for bone tissue engineering applications.
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Affiliation(s)
- Hyejin Park
- Division of Advanced Prosthodontics, University of California, Los Angeles, CA 90095, United States
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304
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Sahoo NG, Pan YZ, Li L, He CB. Nanocomposites for bone tissue regeneration. Nanomedicine (Lond) 2013; 8:639-53. [DOI: 10.2217/nnm.13.44] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Natural bone tissue possesses a nanocomposite structure that provides appropriate physical and biological properties. For bone tissue regeneration, it is crucial for the biomaterial to mimic living bone tissue. Since no single type of material is able to mimic the composition, structure and properties of native bone, nanocomposites are the best choice for bone tissue regeneration as they can provide the appropriate matrix environment, integrate desirable biological properties, and provide controlled, sequential delivery of multiple growth factors for the different stages of bone tissue regeneration. This article reviews the composition, structure and properties of advanced nanocomposites for bone tissue regeneration. It covers aspects of interest such as the biomimetic synthesis of bone-like nanocomposites, guided bone regeneration from inert biomaterials and bioactive nanocomposites, and nanocomposite scaffolds for bone tissue regeneration. The design, fabrication, and in vitro and in vivo characterization of such nanocomposites are reviewed.
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Affiliation(s)
- Nanda Gopal Sahoo
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- Institute of Materials Research & Engineering, 3 Research Link, 117602, Singapore
| | - Yong Zheng Pan
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- Institute of Materials Research & Engineering, 3 Research Link, 117602, Singapore
| | - Lin Li
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
| | - Chao Bin He
- Institute of Materials Research & Engineering, 3 Research Link, 117602, Singapore
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305
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Mohamed KR, Beherei HH, El-Rashidy ZM. In vitro study of nano-hydroxyapatite/chitosan-gelatin composites for bio-applications. J Adv Res 2013; 5:201-8. [PMID: 25685488 PMCID: PMC4294712 DOI: 10.1016/j.jare.2013.02.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 02/23/2013] [Accepted: 02/27/2013] [Indexed: 11/05/2022] Open
Abstract
The present work aims to study the in vitro properties of nano-hydroxyapatite/chitosan–gelatin composite materials. In vitro behavior was performed in simulated body fluid (SBF) to verify the formation of apatite layer onto the composite surfaces. The in vitro data proved the deposition of calcium and phosphorus ions onto hydroxyapatite /polymeric composite surfaces especially those containing high concentrations of polymer content. The degradation of the composites decreased with increase in the polymeric matrix content and highly decreased in the presence of citric acid (CA), especially these composites which contain 30% polymeric content. The water absorption of the composites increased with increase in the polymeric content and highly increased with CA addition. The Fourier transformed infrared reflectance (FT-IR) and scanning electron microscope (SEM) for the composites confirmed the formation of bone-like apatite layer on the composite surfaces, especially those containing high content of polymers (30%) with 0.2 M of CA. These promising composites have suitable properties for bio-applications such as bone grafting and bone tissue engineering applications in the future.
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Affiliation(s)
- Khaled R Mohamed
- Biomaterials Department, National Research Centre, Dokki, Cairo, Egypt
| | - Hanan H Beherei
- Biomaterials Department, National Research Centre, Dokki, Cairo, Egypt ; Physics Department, Faculty of Science, El-Taif University, Saudi Arabia
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306
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Khan F, Ahmad SR. Polysaccharides and Their Derivatives for Versatile Tissue Engineering Application. Macromol Biosci 2013; 13:395-421. [DOI: 10.1002/mabi.201200409] [Citation(s) in RCA: 191] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 01/06/2013] [Indexed: 12/13/2022]
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307
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Jeong HS, Venkatesan J, Kim SK. Hydroxyapatite-fucoidan nanocomposites for bone tissue engineering. Int J Biol Macromol 2013; 57:138-41. [PMID: 23500439 DOI: 10.1016/j.ijbiomac.2013.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 02/21/2013] [Accepted: 03/02/2013] [Indexed: 10/27/2022]
Abstract
Hydroxyapatite (HAp) is the promising biomaterials to construct the article bone from the last two decades. In the present study, we have developed hydroxyapatite-fucoidan (HApF) nanocomposite for bone tissue engineering and subsequently characterized by different analytical techniques for bone graft substitute. The chemical characterization suggested that the prepared nanocomposite HApF have amorphous nature, crystal size between 41 and 153 nm was observed. The biochemical characterization inferred that the prepared nanocomposite were non-toxic and mineralization effect of HApF was observed two times higher then HAp. Hence, HApF is the promising biomaterial and could be used for bone tissue construct.
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Affiliation(s)
- Hee-Seok Jeong
- Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea
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308
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Bayramoglu G, Bitirim V, Tunali Y, Arica MY, Akcali KC. Poly (hydroxyethyl methacrylate-glycidyl methacrylate) films modified with different functional groups: In vitro interactions with platelets and rat stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:801-10. [DOI: 10.1016/j.msec.2012.11.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 09/03/2012] [Accepted: 11/01/2012] [Indexed: 12/20/2022]
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309
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Goonoo N, Bhaw-Luximon A, Bowlin GL, Jhurry D. An assessment of biopolymer- and synthetic polymer-based scaffolds for bone and vascular tissue engineering. POLYM INT 2013. [DOI: 10.1002/pi.4474] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nowsheen Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
| | - Archana Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
| | - Gary L Bowlin
- Department of Biomedical Engineering, Virginia Commonwealth University; Richmond; Virginia USA
| | - Dhanjay Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
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310
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Fricain JC, Schlaubitz S, Le Visage C, Arnault I, Derkaoui SM, Siadous R, Catros S, Lalande C, Bareille R, Renard M, Fabre T, Cornet S, Durand M, Léonard A, Sahraoui N, Letourneur D, Amédée J. A nano-hydroxyapatite--pullulan/dextran polysaccharide composite macroporous material for bone tissue engineering. Biomaterials 2013; 34:2947-59. [PMID: 23375393 DOI: 10.1016/j.biomaterials.2013.01.049] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/09/2013] [Indexed: 01/25/2023]
Abstract
Research in bone tissue engineering is focused on the development of alternatives to allogenic and autologous bone grafts that can stimulate bone healing. Here, we present scaffolds composed of the natural hydrophilic polysaccharides pullulan and dextran, supplemented or not with nanocrystalline hydroxyapatite particles (nHA). In vitro studies revealed that these matrices induced the formation of multicellular aggregates and expression of early and late bone specific markers with human bone marrow stromal cells in medium deprived of osteoinductive factors. In absence of any seeded cells, heterotopic implantation in mice and goat, revealed that only the composite macroporous scaffold (Matrix + nHA) (i) retained subcutaneously local growth factors, including Bone Morphogenetic Protein 2 (BMP2) and VEGF165, (ii) induced the deposition of a biological apatite layer, (iii) favored the formation of a dense mineralized tissue subcutaneously in mice, as well osteoid tissue after intramuscular implantation in goat. The composite scaffold was thereafter implanted in orthotopic preclinical models of critical size defects, in small and large animals, in three different bony sites, i.e. the femoral condyle of rat, a transversal mandibular defect and a tibial osteotomy in goat. The Matrix + nHA induced a highly mineralized tissue in the three models whatever the site of implantation, as well as osteoid tissue and bone tissue regeneration in direct contact to the matrix. We therefore propose this composite matrix as a material for stimulating bone cell differentiation of host mesenchymal stem cells and bone formation for orthopedic and maxillofacial surgical applications.
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311
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Blackburn G, Scott TG, Bayer IS, Ghosh A, Biris AS, Biswas A. Bionanomaterials for bone tumor engineering and tumor destruction. J Mater Chem B 2013; 1:1519-1534. [DOI: 10.1039/c3tb00536d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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312
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Liu M, Wu C, Jiao Y, Xiong S, Zhou C. Chitosan–halloysite nanotubes nanocomposite scaffolds for tissue engineering. J Mater Chem B 2013; 1:2078-2089. [DOI: 10.1039/c3tb20084a] [Citation(s) in RCA: 293] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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313
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Wu L, Zhu F, Tao G. In-VitroBiocompatibility Evaluation of Collagen-Hyaluronic Acid/Bioactive Glass Nanocomposite Scaffold. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.829360] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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314
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Preparation and Characterization of Porous Nanosized Hydroxyapatite/Collagen Composite as Bone Scaffold. ACTA ACUST UNITED AC 2013. [DOI: 10.4028/www.scientific.net/amr.647.62] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inorganic-organic composites could mimic the composite nature of real bone and combine the toughness of a polymer with the strength of an inorganic one to generate bioactive materials with improved mechanical properties and degradation profiles. In this paper, HAp/Col porous scaffold was prepared based on inorganic nano-sized hydoroxyapatite (nHAp) and organic collagen (Col) by solvent casting/particulate leaching. Sodium chloride (NaCl) and ethyl cellulose (EC) were performed as the porogenic agent and binding agent, respectively. The physical, chemical and biodegradation property of this scaffold were investigated in vitro and its co-culture with cells was also studied. The results showed that the scaffold had good mechanical property with the average pore sizes about 150 μm and porosities as high as 75%. This nHAp/Col porous scaffold had no cytotoxicity to mouse pre-osteoblast MC3T3-E1 and the content of alkaline phosphatase (ALP) was ascending with the extension of culture time. The results of mineralization indicated that HAp/Col scaffold could promote the proliferation, differentiation and biological mineralization of MC3T3-E1.
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315
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Beşkardeş IG, Demirtaş TT, Durukan MD, Gümüşderelioğlu M. Microwave-assisted fabrication of chitosan-hydroxyapatite superporous hydrogel composites as bone scaffolds. J Tissue Eng Regen Med 2012; 9:1233-46. [DOI: 10.1002/term.1677] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/31/2012] [Accepted: 11/07/2012] [Indexed: 01/05/2023]
Affiliation(s)
| | | | | | - Menemşe Gümüşderelioğlu
- Department of Chemical Engineering; Hacettepe University; Ankara Turkey
- Department of Bioengineering; Hacettepe University; Ankara Turkey
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316
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Venkatesan J, Pallela R, Bhatnagar I, Kim SK. Chitosan–amylopectin/hydroxyapatite and chitosan–chondroitin sulphate/hydroxyapatite composite scaffolds for bone tissue engineering. Int J Biol Macromol 2012; 51:1033-42. [DOI: 10.1016/j.ijbiomac.2012.08.020] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/07/2012] [Accepted: 08/19/2012] [Indexed: 10/27/2022]
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317
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Niranjan R, Koushik C, Saravanan S, Moorthi A, Vairamani M, Selvamurugan N. A novel injectable temperature-sensitive zinc doped chitosan/β-glycerophosphate hydrogel for bone tissue engineering. Int J Biol Macromol 2012. [PMID: 23201776 DOI: 10.1016/j.ijbiomac.2012.11.026] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hydrogels are hydrophilic polymers that have a wide range of biomedical applications including bone tissue engineering. In this study we report preparation and characterization of a thermosensitive hydrogel (Zn-CS/β-GP) containing zinc (Zn), chitosan (CS) and beta-glycerophosphate (β-GP) for bone tissue engineering. The prepared hydrogel exhibited a liquid state at room temperature and turned into a gel at body temperature. The hydrogel was characterized by SEM, EDX, XRD, FT-IR and swelling studies. The hydrogel enhanced antibacterial activity and promoted osteoblast differentiation. Thus, we suggest that the Zn-CS/β-GP hydrogel could have potential impact as an injectable in situ forming scaffold for bone tissue engineering applications.
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Affiliation(s)
- Ramesh Niranjan
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603 203, TamilNadu, India
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318
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Quaternized chitosan–organic rectorite intercalated composites based nanoparticles for protein controlled release. Int J Pharm 2012; 438:258-65. [DOI: 10.1016/j.ijpharm.2012.09.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 08/27/2012] [Accepted: 09/06/2012] [Indexed: 12/18/2022]
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319
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Nguyen DT, McCanless JD, Mecwan MM, Noblett AP, Haggard WO, Smith RA, Bumgardner JD. Balancing mechanical strength with bioactivity in chitosan-calcium phosphate 3D microsphere scaffolds for bone tissue engineering: air- vs. freeze-drying processes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:1071-83. [PMID: 23683039 DOI: 10.1080/09205063.2012.735099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The objective of this study was to evaluate the potential benefit of 3D composite scaffolds composed of chitosan and calcium phosphate for bone tissue engineering. Additionally, incorporation of mechanically weak lyophilized microspheres within those air-dried (AD) was considered for enhanced bioactivity. AD microsphere, alone, and air- and freeze-dried microsphere (FDAD) 3D scaffolds were evaluated in vitro using a 28-day osteogenic culture model with the Saos-2 cell line. Mechanical testing, quantitative microscopy, and lysozyme-driven enzymatic degradation of the scaffolds were also studied. FDAD scaffold showed a higher concentration (p < 0.01) in cells per scaffold mass vs. AD constructs. Collagen was ∼31% greater (p < 0.01) on FDAD compared to AD scaffolds not evident in microscopy of microsphere surfaces. Alternatively, AD scaffolds demonstrated a superior threefold increase in compressive strength over FDAD (12 vs. 4 MPa) with minimal degradation. Inclusion of FD spheres within the FDAD scaffolds allowed increased cellular activity through improved seeding, proliferation, and extracellular matrix production (as collagen), although mechanical strength was sacrificed through introduction of the less stiff, porous FD spheres.
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Affiliation(s)
- D T Nguyen
- Department of Biomedical Engineering, The University of Memphis, Memphis, TN, USA
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320
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Preparation and characterization of ferrofluid stabilized with biocompatible chitosan and dextran sulfate hybrid biopolymer as a potential magnetic resonance imaging (MRI) T2 contrast agent. Mar Drugs 2012. [PMID: 23203267 PMCID: PMC3509525 DOI: 10.3390/md10112403] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Chitosan is the deacetylated form of chitin and used in numerous applications. Because it is a good dispersant for metal and/or oxide nanoparticle synthesis, chitosan and its derivatives have been utilized as coating agents for magnetic nanoparticles synthesis, including superparamagnetic iron oxide nanoparticles (SPIONs). Herein, we demonstrate the water-soluble SPIONs encapsulated with a hybrid polymer composed of polyelectrolyte complexes (PECs) from chitosan, the positively charged polymer, and dextran sulfate, the negatively charged polymer. The as-prepared hybrid ferrofluid, in which iron chloride salts (Fe3+ and Fe2+) were directly coprecipitated inside the hybrid polymeric matrices, was physic-chemically characterized. Its features include the z-average diameter of 114.3 nm, polydispersity index of 0.174, zeta potential of −41.5 mV and iron concentration of 8.44 mg Fe/mL. Moreover, based on the polymer chain persistence lengths, the anionic surface of the nanoparticles as well as the high R2/R1 ratio of 13.5, we depict the morphology of SPIONs as a cluster because chitosan chains are chemisorbed onto the anionic magnetite surfaces by tangling of the dextran sulfate. Finally, the cellular uptake and biocompatibility assays indicate that the hybrid polymer encapsulating the SPIONs exhibited great potential as a magnetic resonance imaging T2 contrast agent for cell tracking.
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321
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Guan S, Zhang XL, Lin XM, Liu TQ, Ma XH, Cui ZF. Chitosan/gelatin porous scaffolds containing hyaluronic acid and heparan sulfate for neural tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:999-1014. [DOI: 10.1080/09205063.2012.731374] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Shui Guan
- a Stem Cell and Tissue Engineering Laboratory , Dalian University of Technology , Dalian , China
| | - Xiu-Li Zhang
- b School of Pharmaceutical Sciences, Binzhou Medical University , Yantai, Shandong , China
| | - Xiao-Min Lin
- a Stem Cell and Tissue Engineering Laboratory , Dalian University of Technology , Dalian , China
| | - Tian-Qing Liu
- a Stem Cell and Tissue Engineering Laboratory , Dalian University of Technology , Dalian , China
| | - Xue-Hu Ma
- a Stem Cell and Tissue Engineering Laboratory , Dalian University of Technology , Dalian , China
| | - Zhan-Feng Cui
- c Department of Engineering Science , Oxford University , Oxford , UK
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322
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Ge S, Zhao N, Wang L, Yu M, Liu H, Song A, Huang J, Wang G, Yang P. Bone repair by periodontal ligament stem cellseeded nanohydroxyapatite-chitosan scaffold. Int J Nanomedicine 2012; 7:5405-14. [PMID: 23091383 PMCID: PMC3474464 DOI: 10.2147/ijn.s36714] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background A nanohydroxyapatite-coated chitosan scaffold has been developed in recent years, but the effect of this composite scaffold on the viability and differentiation of periodontal ligament stem cells (PDLSCs) and bone repair is still unknown. This study explored the behavior of PDLSCs on a new nanohydroxyapatite-coated genipin-chitosan conjunction scaffold (HGCCS) in vitro as compared with an uncoated genipin-chitosan framework, and evaluated the effect of PDLSC-seeded HGCCS on bone repair in vivo. Methods Human PDLSCs were cultured and identified, seeded on a HGCCS and on a genipin-chitosan framework, and assessed by scanning electron microscopy, confocal laser scanning microscopy, MTT, alkaline phosphatase activity, and quantitative real-time polymerase chain reaction at different time intervals. Moreover, PDLSC-seeded scaffolds were used in a rat calvarial defect model, and new bone formation was assessed by hematoxylin and eosin staining at 12 weeks postoperatively. Results PDLSCs were clonogenic and positive for STRO-1. They had the capacity to undergo osteogenic and adipogenic differentiation in vitro. When seeded on HGCCS, PDLSCs exhibited significantly greater viability, alkaline phosphatase activity, and upregulated the bone-related markers, bone sialoprotein, osteopontin, and osteocalcin to a greater extent compared with PDLSCs seeded on the genipin-chitosan framework. The use of PDLSC-seeded HGCCS promoted calvarial bone repair. Conclusion This study demonstrates the potential of HGCCS combined with PDLSCs as a promising tool for bone regeneration.
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Affiliation(s)
- Shaohua Ge
- Key Laboratory of Oral Biomedicine of Shandong Province, Department of Periodontology, School of Stomatology, Jinan, China
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323
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Abstract
In the recent years, significant developments have been achieved with chitosan and hydroxyapatite (HAp) scaffolds for bone tissue engineering. In the present study, chitosan/nanostructured hydroxyapatite (Chitosan/nHAp) has been prepared and subsequently characterized physicochemically for bone graft substitution. The nano sized HAp particles were uniformly distributed in the chitosan matrix which was confirmed by Fourier Transform Infrared Spectroscopy, Thermal Gravimetric Analysis, X-Ray Diffraction and Scanning Electron Microscopy analysis. The pore size of the chitosan/nHAp scaffold was found to be 18-372 µm which is suitable for cell attachment and nutrient supplement. Thus, we are suggesting that Chitosan/nHAp could be promising biomaterials for bone tissue engineering.
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324
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Rodrigues SC, Salgado CL, Sahu A, Garcia MP, Fernandes MH, Monteiro FJ. Preparation and characterization of collagen-nanohydroxyapatite biocomposite scaffolds by cryogelation method for bone tissue engineering applications. J Biomed Mater Res A 2012; 101:1080-94. [PMID: 23008173 DOI: 10.1002/jbm.a.34394] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 06/19/2012] [Accepted: 07/23/2012] [Indexed: 11/09/2022]
Abstract
Recent efforts of bone repair focus on development of porous scaffolds for cell adhesion and proliferation. Collagen-nanohydroxyapatite (HA) scaffolds (70:30; 50:50; and 30:70 mass percentage) were produced by cryogelation technique using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride/N-hydroxysuccinimide as crosslinking agents. A pure collagen scaffold was used as control. Morphology analysis revealed that all cryogels had highly porous structure with interconnective porosity and the nanoHA aggregates were randomly dispersed throughout the scaffold structure. Chemical analysis showed the presence of all major peaks related to collagen and HA in the biocomposites and indicated possible interaction between nanoHA aggregates and collagen molecules. Porosity analysis revealed an enhancement in the surface area as the nanoHA percentage increased in the collagen structure. The biocomposites showed improved mechanical properties as the nanoHA content increased in the scaffold. As expected, the swelling capacity decreased with the increase of nanoHA content. In vitro studies with osteoblasts cells showed that they were able to attach and spread in all cryogels surfaces. The presence of collagen-nanoHA biocomposites resulted in higher overall cellular proliferation compared to pure collagen scaffold. A statistically significant difference between collagen and collagen-nanoHA cryogels was observed after 21 day of cell culture. These innovative collagen-nanoHA cryogels could have potentially appealing application as scaffolds for bone regeneration.
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Affiliation(s)
- Sandra C Rodrigues
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.
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325
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Hunter KT, Ma T. In vitroevaluation of hydroxyapatite-chitosan-gelatin composite membrane in guided tissue regeneration. J Biomed Mater Res A 2012; 101:1016-25. [DOI: 10.1002/jbm.a.34396] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 06/10/2012] [Accepted: 07/25/2012] [Indexed: 11/11/2022]
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326
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Zhang X, Zhu L, Lv H, Cao Y, Liu Y, Xu Y, Ye W, Wang J. Repair of rabbit femoral condyle bone defects with injectable nanohydroxyapatite/chitosan composites. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:1941-1949. [PMID: 22555503 DOI: 10.1007/s10856-012-4662-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Accepted: 04/24/2012] [Indexed: 05/31/2023]
Abstract
Repair of massive bone loss remains a challenge to the orthopaedic surgeons. Autologous and allogenic bone grafts are choice for bone reconstructive surgery, but limited availability, risks of transmittable diseases and inconsistent clinical performances have prompted the development of tissue engineering. In the present work, the bone regeneration potential of nanohydroxyapatite/chitosan composite scaffolds were compared with pure chitosan scaffolds when implanted into segmental bone defects in rabbits. Critical size bone defects (6 mm diameter, 10 mm length) were created in the left femoral condyles of 43 adult New Zealand white rabbits. The femoral condyle bone defects were repaired by nanohydroxyapatite/chitosan compositions, pure chitosan or left empty separately. Defect-bridging was detected by plain radiograph and quantitative computer tomography at eight and 12 weeks after surgery. Tissue samples were collected for gross view and histological examination to determine the extent of new bone formation. Eight weeks after surgery, more irregular osteon formation was observed in the group treated with nanohydroxyapatite/chitosan composites compared with those treated with pure chitosan. 12 weeks after surgery, complete healing of the segmental bone defect was observed in the nanohydroxyapatite/chitosan-group, while the defect was still visible in the chitosan-group, although the depth of the defect had diminished. These observations suggest that the injectable nanohydroxyapatite/chitosan scaffolds are potential candidate materials for regeneration of bone loss.
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Affiliation(s)
- Xibing Zhang
- Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, Guangzhou, China
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327
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Terada M, Izumi K, Ohnuki H, Saito T, Kato H, Yamamoto M, Kawano Y, Nozawa-Inoue K, Kashiwazaki H, Ikoma T, Tanaka J, Maeda T. Construction and characterization of a tissue-engineered oral mucosa equivalent based on a chitosan-fish scale collagen composite. J Biomed Mater Res B Appl Biomater 2012; 100:1792-802. [PMID: 22807349 DOI: 10.1002/jbm.b.32746] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 05/01/2012] [Accepted: 05/20/2012] [Indexed: 11/10/2022]
Abstract
This study was designed to (1) assess the in vitro biocompatibility of a chitosan-collagen composite scaffold (C3) constructed by blending commercial chitosan and tilapia scale collagen with oral mucosa keratinocytes, (2) histologically and immunohistochemically characterize an ex vivo-produced oral mucosa equivalent constructed using the C3 (EVPOME-C), and (3) compare EVPOME-C with oral mucosa constructs utilizing AlloDerm® (EVPOME-A), BioMend® Extend™ (EVPOME-B), and native oral mucosa. C3 scaffold had a well-developed fibril network and a sufficiently small porosity to prevent keratinocytes from growing inside the scaffold after cell-seeding. The EVPOME oral mucosa constructs were fabricated in a chemically defined culture system. After culture at an air-liquid interface, EVPOME-C and EVPOME-B had multilayered epithelium with keratinization, while EVPOME-A had a more organized stratified epithelium. Ki-67 and p63 immunolabeled cells in the basal layer of all EVPOMEs suggested a regenerative ability. Compared with native oral mucosa, the keratin 15 and 10/13 expression patterns in all EVPOMEs showed a less-organized differentiation pattern. In contrast to the β1-integrin and laminin distribution in EVPOME-A and native oral mucosa, the subcellular deposition in EVPOME-C and EVPOME-B indicated that complete basement membrane formation failed. These findings demonstrated that C3 has a potential application for epithelial tissue engineering and provides a new potential therapeutic device for oral mucosa regenerative medicine.
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Affiliation(s)
- Michiko Terada
- Division of Oral Anatomy, Niigata University Graduate School of Medical and Dental Sciences, Chuo-Ku, Niigata City, Japan.
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328
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Depan D, Misra RDK. Processing-structure-functional property relationship in organic-inorganic nanostructured scaffolds for bone-tissue engineering: the response of preosteoblasts. J Biomed Mater Res A 2012; 100:3080-91. [PMID: 22733690 DOI: 10.1002/jbm.a.34245] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 05/03/2012] [Indexed: 11/06/2022]
Abstract
We elucidate here for the first time the structure-processing-functional property relationship in chitosan (CS)-based scaffolds, where molecular machinery governing proliferation and growth of osteoblasts is mediated by nanostructured carbon. The interconnected network structure of organic-inorganic scaffolds was obtained by covalent linkage of carboxyl group of functionalized single-walled carbon nanohorn with the amine group of CS. The molecular-scale dispersibility of functionalized nanostructured carbon was an important physicochemical factor influencing cellular interactions and biological response. Furthermore, it was beneficial in promoting the biocompatibility and the degradation product of the scaffolds. The hydrophilicity, good water retention ability, and interconnected porous structure of organic-inorganic scaffolds enabled pronounced cell attachment and proliferation and enhanced the stability toward enzymatic degradation. The infiltration of cells and colonization of the pores of the scaffolds and cellular interactions were promoted due to covalent linkage of nanostructured carbon with CS. Additionally, the interconnectivity of porous scaffolds facilitated cells to infiltrate inside the pores of CS-nanostructured scaffolds, implying that nanostructured carbon merits consideration in tissue engineering.
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Affiliation(s)
- D Depan
- Center for Structural and Functional Materials, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, USA
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329
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Allo BA, Costa DO, Dixon SJ, Mequanint K, Rizkalla AS. Bioactive and biodegradable nanocomposites and hybrid biomaterials for bone regeneration. J Funct Biomater 2012; 3:432-63. [PMID: 24955542 PMCID: PMC4047942 DOI: 10.3390/jfb3020432] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 06/09/2012] [Accepted: 06/14/2012] [Indexed: 02/04/2023] Open
Abstract
Strategies for bone tissue engineering and regeneration rely on bioactive scaffolds to mimic the natural extracellular matrix and act as templates onto which cells attach, multiply, migrate and function. Of particular interest are nanocomposites and organic-inorganic (O/I) hybrid biomaterials based on selective combinations of biodegradable polymers and bioactive inorganic materials. In this paper, we review the current state of bioactive and biodegradable nanocomposite and O/I hybrid biomaterials and their applications in bone regeneration. We focus specifically on nanocomposites based on nano-sized hydroxyapatite (HA) and bioactive glass (BG) fillers in combination with biodegradable polyesters and their hybrid counterparts. Topics include 3D scaffold design, materials that are widely used in bone regeneration, and recent trends in next generation biomaterials. We conclude with a perspective on the future application of nanocomposites and O/I hybrid biomaterials for regeneration of bone.
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Affiliation(s)
- Bedilu A Allo
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada.
| | - Daniel O Costa
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada.
| | - S Jeffrey Dixon
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario N6A 5C1, Canada.
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada.
| | - Amin S Rizkalla
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada.
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330
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Miranda SCCC, Silva GAB, Mendes RM, Abreu FAM, Caliari MV, Alves JB, Goes AM. Mesenchymal stem cells associated with porous chitosan-gelatin scaffold: A potential strategy for alveolar bone regeneration. J Biomed Mater Res A 2012; 100:2775-86. [DOI: 10.1002/jbm.a.34214] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 02/15/2012] [Accepted: 03/30/2012] [Indexed: 12/26/2022]
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331
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Kumar S, Koh J. Physiochemical, optical and biological activity of chitosan-chromone derivative for biomedical applications. Int J Mol Sci 2012; 13:6102-6116. [PMID: 22754352 PMCID: PMC3382751 DOI: 10.3390/ijms13056102] [Citation(s) in RCA: 183] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/12/2012] [Accepted: 05/15/2012] [Indexed: 12/03/2022] Open
Abstract
This paper describes the physiochemical, optical and biological activity of chitosan-chromone derivative. The chitosan-chromone derivative gels were prepared by reacting chitosan with chromone-3-carbaldehyde, followed by solvent exchange, filtration and drying by evaporation. The identity of Schiff base was confirmed by UV-Vis absorption spectroscopy and Fourier-transform infrared (FTIR) spectroscopy. The chitosan-chromone derivative was evaluated by X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), photoluminescence (PL) and circular dichroism (CD). The CD spectrum showed the chitosan-chromone derivative had a secondary helical structure. Microbiological screening results demonstrated the chitosan-chromone derivative had antimicrobial activity against Escherichia coli bacteria. The chitosan-chromone derivative did not have any adverse effect on the cellular proliferation of mouse embryonic fibroblasts (MEF) and did not lead to cellular toxicity in MEFs. These results suggest that the chitosan-chromone derivative gels may open a new perspective in biomedical applications.
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Affiliation(s)
- Santosh Kumar
- Department of Textile Engineering, Konkuk University, Seoul 143-701, Korea; E-Mail:
| | - Joonseok Koh
- Department of Textile Engineering, Konkuk University, Seoul 143-701, Korea; E-Mail:
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332
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Zhang CY, Zhang CL, Wang JF, Lu CH, Zhuang Z, Wang XP, Fang QF. Fabrication andin vitroinvestigation of nanohydroxyapatite, chitosan, poly(L-lactic acid) ternary biocomposite. J Appl Polym Sci 2012. [DOI: 10.1002/app.37795] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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333
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Chiang ZC, Yu SH, Chao AC, Dong GC. Preparation and characterization of dexamethasone-immobilized chitosan scaffold. J Biosci Bioeng 2012; 113:654-60. [DOI: 10.1016/j.jbiosc.2012.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 12/27/2011] [Accepted: 01/04/2012] [Indexed: 10/14/2022]
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334
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Lim JI, Lee YK, Shin JS, Lim KJ. Preparation of Interconnected Porous Chitosan Scaffolds by Sodium Acetate Particulate Leaching. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1319-29. [DOI: 10.1163/092050610x504783] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Jin Ik Lim
- a National Core Research Center for Nanomedical Technology, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, South Korea
| | - Yong-Keun Lee
- b Denforus Co, 3001-2 Bangbae-dong, Seocho-Gu, Seoul 137-974, South Korea
| | - Jeon-Soo Shin
- c Department of Microbiology, College of Medicine, Yonsei University, Seoul 120-752, South Korea
| | - Kook-Jin Lim
- d National Core Research Center for Nanomedical Technology, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, South Korea.
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335
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Ratanavaraporn J, Damrongsakkul S, Kanokpanont S, Yamamoto M, Tabata Y. Osteogenic Differentiation of Bone-Marrow-Derived Stem Cells Cultured with Mixed Gelatin and Chitooligosaccharide Scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1083-98. [DOI: 10.1163/092050610x499050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Juthamas Ratanavaraporn
- a Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, PhayaThai Road, Phatumwan, Bangkok 10330, Thailand
| | - Siriporn Damrongsakkul
- b Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, PhayaThai Road, Phatumwan, Bangkok 10330, Thailand
| | - Sorada Kanokpanont
- c Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, PhayaThai Road, Phatumwan, Bangkok 10330, Thailand
| | - Masaya Yamamoto
- d Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yasuhiko Tabata
- e Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
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336
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Pu XM, Sun ZZ, Hou ZQ, Yang Y, Yao QQ, Zhang QQ. Fabrication of chitosan/hydroxylapatite composite rods with a layer-by-layer structure for fracture fixation. J Biomed Mater Res B Appl Biomater 2012; 100:1179-89. [PMID: 22454303 DOI: 10.1002/jbm.b.31961] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 07/25/2011] [Accepted: 08/03/2011] [Indexed: 01/17/2023]
Abstract
A composite rod for fracture fixation using chitosan (CHI)/hydroxylapatite (HA) was prepared by means of in situ precipitation, which had a layer-by-layer structure, good mechanical properties, and cell compatibilities. The CHI/HA composite rods were precipitated from the chitosan solution with calcium and phosphorus precursors, followed by treatment with a tripolyphosphate-trisodium phosphate solution (pH >13) to crosslink the CHI and to hydrolyze the calcium phosphates to nanocrystalline HA. The results of FTIR, XRD, and TEM measurements confirmed that HA had been formed within the CHI matrix. The effects of the CHI/HA ratios (20/0, 20/1, 20/2, 20/4, and 20/5, w/w) on the mechanical properties were investigated. At the CHI/HA ratio of 20/4 (w/w), the bending strength and modulus of the rods were 133 MPa and 6.8 GPa, respectively. Pre-osteoblast MC3T3-E1 cells were cultured in an extract of the CHI/HA rods (20/4, w/w) to study the cell compatibilities of the composite. The observations indicated that the CHI/HA composite could promote the growth of MC3T3-E1 cells better than the composite without HA (p < 0.05). Furthermore, the co-cultivation of the cells and the CHI/HA composite showed that cells fully spread on the surface of the composite with an obvious cytoskeleton organization, which also revealed that the CHI/HA composite had a good biocompatibility.
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Affiliation(s)
- Xi-Ming Pu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
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337
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Pahwa R, Saini N, Kumar V, Kohli K. Chitosan-based gastroretentive floating drug delivery technology: an updated review. Expert Opin Drug Deliv 2012; 9:525-39. [DOI: 10.1517/17425247.2012.673581] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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338
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Liu L, Wang Y, Guo S, Wang Z, Wang W. Porous polycaprolactone/nanohydroxyapatite tissue engineering scaffolds fabricated by combining NaCl and PEG as co-porogens: Structure, property, and chondrocyte-scaffold interaction in vitro. J Biomed Mater Res B Appl Biomater 2012; 100:956-66. [DOI: 10.1002/jbm.b.32658] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Revised: 09/11/2011] [Accepted: 09/12/2011] [Indexed: 11/11/2022]
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339
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Yilgor P, Yilmaz G, Onal MB, Solmaz I, Gundogdu S, Keskil S, Sousa RA, Reis RL, Hasirci N, Hasirci V. Anin vivostudy on the effect of scaffold geometry and growth factor release on the healing of bone defects. J Tissue Eng Regen Med 2012; 7:687-96. [DOI: 10.1002/term.1456] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 11/01/2011] [Accepted: 11/24/2011] [Indexed: 01/09/2023]
Affiliation(s)
| | - G. Yilmaz
- Department of Pathology; Gazi University Faculty of Medicine; Ankara; Turkey
| | - M. B. Onal
- Department of Neurosurgery; Gulhane Military Medical Academy; Ankara; Turkey
| | - I. Solmaz
- Department of Neurosurgery; Gulhane Military Medical Academy; Ankara; Turkey
| | - S. Gundogdu
- Department of Radiology; Ufuk University Faculty of Medicine; Ankara; Turkey
| | - S. Keskil
- Department of Neurosurgery; Bayindir Medical Centre; Kavaklidere; Ankara; Turkey
| | - R. A. Sousa
- 3Bs Research Group; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães; Portugal
| | - R. L. Reis
- 3Bs Research Group; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães; Portugal
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340
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Venkatesan J, Ryu B, Sudha P, Kim SK. Preparation and characterization of chitosan–carbon nanotube scaffolds for bone tissue engineering. Int J Biol Macromol 2012; 50:393-402. [DOI: 10.1016/j.ijbiomac.2011.12.032] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 12/16/2011] [Accepted: 12/24/2011] [Indexed: 11/15/2022]
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341
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Nejadnik MR, Mikos AG, Jansen JA, Leeuwenburgh SCG. Facilitating the mineralization of oligo(poly(ethylene glycol) fumarate) hydrogel by incorporation of hydroxyapatite nanoparticles. J Biomed Mater Res A 2012; 100:1316-23. [PMID: 22374694 DOI: 10.1002/jbm.a.34071] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 10/01/2011] [Accepted: 12/28/2011] [Indexed: 11/05/2022]
Abstract
Exploring strategies to induce the mineralization of hydrogels is an important step toward the development of hydrogel-based materials for bone regeneration. In the current study, the effect of incorporating hydroxyapatite (HA) nanoparticles on the mineralization capacity of an inert poly(ethylene glycol) (PEG)-based hydrogel was investigated. HA nanoparticles were either directly loaded into oligo(poly(ethylene glycol) fumarate) (OPF) hydrogel or loaded into commonly used gelatin microsphere porogens that were subsequently integrated in the OPF matrix. Mineralization of composites after immersion of the samples in simulated body fluid up to 28 days was assessed. In contrast to the blank OPF hydrogel, the HA-containing constructs strongly mineralized such that the average rate of calcium uptake by the material was enhanced by orders of magnitude. The mineral formed was observed to be apatitic and needle shaped. The presented method allows modification of inert PEG-based hydrogels into bioactive biomaterials for applications in bone regeneration.
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Affiliation(s)
- M Reza Nejadnik
- Department of Biomaterials, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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342
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Hou J, Wang J, Cao L, Qian X, Xing W, Lu J, Liu C. Segmental bone regeneration using rhBMP-2-loaded collagen/chitosan microspheres composite scaffold in a rabbit model. Biomed Mater 2012; 7:035002. [PMID: 22358865 DOI: 10.1088/1748-6041/7/3/035002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The reconstruction of segmental bone defects remains an urgent problem in the orthopaedic field, and bone morphogenetic protein-2 (BMP-2) is known for its potent osteoinductive properties in bone regeneration. In this study, chitosan microspheres (CMs) were prepared and combined with absorbable collagen sponge to maintain controlled-release recombinant human bone morphogenetic protein-2 (rhBMP-2). The rhBMP-2-loaded composite scaffolds were implanted into 15 mm radius defects of rabbits and the bone-repair ability was evaluated systematically. CMs were spherical in shape and had a polyporous surface, according to SEM images. The complex scaffold exhibited an ideal releasing profile in vitro. The micro-computed tomographic analysis revealed that the rhBMP-2-loaded composite scaffold not only bridged the defects as early as 4 weeks, but also healed the defects and presented recanalization of the bone-marrow cavity at 12 weeks. These results were confirmed by x-ray. When compared with other control groups, the composite scaffold group remarkably enhanced new bone formation and mechanical properties, as evidenced by bone mineral content evaluation, histological observations and biomechanical testing. Moreover, the biocompatibility and appropriate degradation of the composite scaffold could be obtained. All of these results clearly demonstrated that the composite scaffold is a promising carrier of BMP-2 for the treatment of segmental bone defects.
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Affiliation(s)
- Juan Hou
- The State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, People's Republic of China
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343
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Preparation and functional assessment of composite chitosan-nano-hydroxyapatite scaffolds for bone regeneration. J Funct Biomater 2012; 3:114-30. [PMID: 24956519 PMCID: PMC4031011 DOI: 10.3390/jfb3010114] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 01/19/2012] [Accepted: 01/31/2012] [Indexed: 11/17/2022] Open
Abstract
Composite chitosan-nano-hydroxyapatite microspheres and scaffolds prepared using a co-precipitation method have shown potential for use in bone regeneration. The goal of this research was to improve the functional properties of the composite scaffolds by modifying the fabrication parameters. The effects of degree of deacetylation (DDA), drying method, hydroxyapatite content and an acid wash on scaffold properties were investigated. Freeze-dried 61% DDA scaffolds degraded faster (3.5 ± 0.5% mass loss) than air-dried 61% DDA scaffolds and 80% DDA scaffolds, but had a lower compressive modulus of 0.12 ± 0.01 MPa. Air-dried 80% DDA scaffolds displayed the highest compressive modulus (3.79 ± 0.51 MPa) and these scaffolds were chosen as the best candidate for use in bone regeneration. Increasing the amount of hydroxyapatite in the air-dried 80% DDA scaffolds did not further increase the compressive modulus of the scaffolds. An acid wash procedure at pH 6.1 was found to increase the degradation of air-dried 80% DDA scaffolds from 1.3 ± 0.1% to 4.4 ± 0.4%. All of the formulations tested supported the proliferation of SAOS-2 cells.
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344
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Jin Lee H, Kim GH. Cryogenically direct-plotted alginate scaffolds consisting of micro/nano-architecture for bone tissue regeneration. RSC Adv 2012. [DOI: 10.1039/c2ra20836a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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345
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Zanotto A, Saladino ML, Martino DC, Caponetti E. Influence of Temperature on Calcium Hydroxyapatite Nanopowders. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/anp.2012.13004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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346
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Pallela R, Venkatesan J, Janapala VR, Kim SK. Biophysicochemical evaluation of chitosan-hydroxyapatite-marine sponge collagen composite for bone tissue engineering. J Biomed Mater Res A 2011; 100:486-95. [DOI: 10.1002/jbm.a.33292] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Revised: 07/13/2011] [Accepted: 09/29/2011] [Indexed: 11/12/2022]
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347
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Sun F, Zhou H, Lee J. Various preparation methods of highly porous hydroxyapatite/polymer nanoscale biocomposites for bone regeneration. Acta Biomater 2011; 7:3813-28. [PMID: 21784182 DOI: 10.1016/j.actbio.2011.07.002] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 06/28/2011] [Accepted: 07/05/2011] [Indexed: 12/12/2022]
Abstract
Tissue engineering utilizes expertise in the fields of materials science, biology, chemistry, transplantation medicine, and engineering to design materials that can temporarily serve in a structural and/or functional capacity during regeneration of a defect. Hydroxyapatite (HAp) scaffolds are among the most extensively studied materials for this application. However, HAp has been reported to be too weak to treat such defects and, therefore, has been limited to non-load-bearing applications. To capitalize the advantages of HAp and at the same time overcome the drawbacks nanocrystalline HAp (nHAp) is combined with various types of bioactive polymers to generate highly porous biocomposite materials that are used for osteoconduction in the field of orthopedic surgery. In this study we have reviewed nanosized HAp-based highly porous composite materials used for bone tissue engineering, introduced various fabrication methods to prepare nHAp/polymer composite scaffolds, and characterized these scaffolds on the basis of their biodegradability and biocompatibility through in vitro and in vivo tests. Finally, we provide a summary and our own perspectives on this active area of research.
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Affiliation(s)
- Fangfang Sun
- Department of Nanomedical Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Miryang 627-706, Republic of Korea
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348
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Zhang CY, Chen J, Zhuang Z, Zhang T, Wang XP, Fang QF. In situ hybridization and characterization of fibrous hydroxyapatite/chitosan nanocomposite. J Appl Polym Sci 2011. [DOI: 10.1002/app.35103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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349
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Budiraharjo R, Neoh KG, Kang ET. Hydroxyapatite-coated carboxymethyl chitosan scaffolds for promoting osteoblast and stem cell differentiation. J Colloid Interface Sci 2011; 366:224-232. [PMID: 22024371 DOI: 10.1016/j.jcis.2011.09.072] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/23/2011] [Accepted: 09/24/2011] [Indexed: 12/13/2022]
Abstract
The behavior of MC3T3 osteoblasts and human bone marrow stem cells on non-coated and hydroxyapatite (HAP)-coated carboxymethyl chitosan (CMCS) scaffolds was investigated in this study. Four HAP-coated scaffolds with different coating morphology and coverage were prepared by mineralization for 1week in four different mineralizing solutions. Viability, attachment, proliferation, and differentiation of the osteoblasts on these scaffolds were evaluated, and an osteogenic gene expression analysis was carried out to investigate the osteoblastic differentiation of the stem cells. No cytotoxic effects were observed with both the non-coated and coated scaffolds. The non-coated CMCS scaffold supports attachment, proliferation, and differentiation of the osteoblasts and directs stem cell differentiation to osteoblast. Coating the scaffold with HAP substantially enhances these effects on the osteoblasts and stem cells. The main improvement was in the late stage of osteoblast differentiation since osteoblastic differentiation of the osteoblasts and stem cells in this stage was significantly enhanced by the coatings regardless of the variation in morphology and coverage. On the other hand, high HAP coverage was beneficial in stimulating osteoblast attachment and proliferation. This study demonstrates the good potential of HAP-coated CMCS scaffolds as osteogenic scaffolds to stimulate bone healing.
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Affiliation(s)
- Rusdianto Budiraharjo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260, Singapore
| | - Koon Gee Neoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260, Singapore.
| | - En Tang Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260, Singapore
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350
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Degradation controllable biomaterials constructed from lysozyme-loaded Ca-alginate microparticle/chitosan composites. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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