1
|
Dorozhkin SV. Calcium Orthophosphate (CaPO4) Containing Composites for Biomedical Applications: Formulations, Properties, and Applications. JOURNAL OF COMPOSITES SCIENCE 2024; 8:218. [DOI: 10.3390/jcs8060218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The goal of this review is to present a wide range of hybrid formulations and composites containing calcium orthophosphates (abbreviated as CaPO4) that are suitable for use in biomedical applications and currently on the market. The bioactive, biocompatible, and osteoconductive properties of various CaPO4-based formulations make them valuable in the rapidly developing field of biomedical research, both in vitro and in vivo. Due to the brittleness of CaPO4, it is essential to combine the desired osteologic properties of ceramic CaPO4 with those of other compounds to create novel, multifunctional bone graft biomaterials. Consequently, this analysis offers a thorough overview of the hybrid formulations and CaPO4-based composites that are currently known. To do this, a comprehensive search of the literature on the subject was carried out in all significant databases to extract pertinent papers. There have been many formulations found with different material compositions, production methods, structural and bioactive features, and in vitro and in vivo properties. When these formulations contain additional biofunctional ingredients, such as drugs, proteins, enzymes, or antibacterial agents, they offer improved biomedical applications. Moreover, a lot of these formulations allow cell loading and promote the development of smart formulations based on CaPO4. This evaluation also discusses basic problems and scientific difficulties that call for more investigation and advancements. It also indicates perspectives for the future.
Collapse
Affiliation(s)
- Sergey V. Dorozhkin
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russia
| |
Collapse
|
2
|
Wang L, Chen B, Ji M, Guo D, He X, Lashari NUR, Fu C, Zheng J. Development and properties of
UV
‐cured poly (propylene fumarate)/hydroxyapatite composites coatings as potential application for bone adhesive tape. J Appl Polym Sci 2022. [DOI: 10.1002/app.52289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liang Wang
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering, Xi'an Jiaotong University Xi'an China
| | - Bing‐yu Chen
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Meng‐hao Ji
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Da‐gang Guo
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering, Xi'an Jiaotong University Xi'an China
| | - Xin‐hai He
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Najeeb ur Rehman Lashari
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Chong Fu
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Jing Zheng
- Shaanxi Key Laboratory of Biomedical Metal Materials Northwest Institute for Non‐ferrous Metal Research Xi'an China
| |
Collapse
|
3
|
In vitro biocompatiability and mechanical properties of bone adhesive tape composite based on poly(butyl fumarate)/poly(propylene fumarate)-diacrylate networks. J Mech Behav Biomed Mater 2022; 126:105049. [PMID: 34991046 DOI: 10.1016/j.jmbbm.2021.105049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 11/24/2022]
Abstract
Polyfumarate has been considered as injectable and biodegradable bone cement. However, its mechanical and degradation properties are particularly important. Therefore, the current study aimed to develop the properties by compositing poly (butyl fumarate)-based networks with hydroxyapatite nano-powders. In this regard, the poly (butyl fumarate) (PBF) matrix composite was compared with different components by evaluating their composition, mechanical properties, hydrophilicity, and biodegradability. Furthermore, their bioactivity in the phosphate-buffered saline (PBS) and, via applying mouse embryo osteoblast precursor cells (MC3T3-E1), their cell interaction, including adhesion, proliferation, and in vitro cytotoxicity assay, were assessed. The addition of hydroxyapatite improved the mechanical strength and modulus of PBF matrix composite. The composite reinforced with 3 wt% hydroxyapatite showed a higher lap-shear strength (1.68 MPa) and bonding strength (4.30 MPa), a maximum compression strength at fracture (95.18 MPa), modulus (925.29 MPa), and compression strength at yield (31.43 MPa), respectively. Also, hydrophilicity and in vitro degradation of the composite were enhanced in the presence of hydroxyapatite. In this condition, after a period of immersion (52 weeks) in PBS, the weight loss rate, and degradation rate of the composite increased. The composite proliferation, adhesion, and toxicity of MC3T3-E1 cells improved in comparison to the PBF matrix composite. Accordingly, controllable strength and degradation of the composite, along with its proven biocompatibility, make the composite a candidate for the treatment of comminuted fractures.
Collapse
|
4
|
Zhang Y, Li J, Mouser VHM, Roumans N, Moroni L, Habibovic P. Biomimetic Mechanically Strong One-Dimensional Hydroxyapatite/Poly(d,l-lactide) Composite Inducing Formation of Anisotropic Collagen Matrix. ACS NANO 2021; 15:17480-17498. [PMID: 34662097 PMCID: PMC8613905 DOI: 10.1021/acsnano.1c03905] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 10/13/2021] [Indexed: 05/25/2023]
Abstract
Natural bone is a complex composite, consisting predominantly of collagen and hydroxyapatite (HA), which form a highly organized, hierarchical structure from the nano- to the macroscale. Because of its biphasic, anisotropic, ultrafine structural design, bone tissue possesses excellent mechanical properties. Herein, inspired by the composition and microstructure of natural bone, a biphasic composite consisting of highly aligned strontium/copper-doped one-dimensional hydroxyapatite (Sr/Cu-doped 1D HA) and poly(d,l-lactide) (PDLA) was developed. The presence and alignment of Sr/Cu-doped 1D HA crystals resulted in mechanical reinforcement of the polymer matrix, including compressive and tensile strength and modulus, fracture toughness, swelling resistance, and long-term structural stability. The compressive strength, tensile strength, and Young's modulus of the biomimetic composite were comparable to that of cortical bone. Biologically, the biomimetic composite showed a sustained release of the incorporated Sr and Cu ions, facilitated mineral deposition from simulated body fluid, and supported attachment, proliferation, and alkaline phosphatase activity of human mesenchymal stromal cells (hMSCs). Moreover, the highly aligned Sr/Cu-doped 1D HA crystals in the 3D porous scaffolds induced the alignment of hMSCs and secretion of an anisotropic collagen fiber matrix in 3D. The biomimetic Sr/Cu-doped 1D HA/PDLA composite presented here contributes to the current efforts aiming at the design and development of load-bearing bioactive synthetic bone graft substitutes. Moreover, the biomimetic composite may serve as a 3D platform for studying cell-extracellular matrix interactions in bone tissue.
Collapse
Affiliation(s)
- Yonggang Zhang
- Department
of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative
Medicine, Universiteitssingel
40, 6229 ER, Maastricht, The Netherlands
| | - Jiaping Li
- Department
of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative
Medicine, Universiteitssingel
40, 6229 ER, Maastricht, The Netherlands
- Complex
Tissue Regeneration Department, Maastricht
University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands
| | - Vivian Hilda Maria Mouser
- Orthopaedic
Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Nadia Roumans
- Department
of Cell Biology-Inspired Tissue Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative
Medicine, Universiteitssingel
40, 6229 ER, Maastricht, The Netherlands
| | - Lorenzo Moroni
- Complex
Tissue Regeneration Department, Maastricht
University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands
| | - Pamela Habibovic
- Department
of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative
Medicine, Universiteitssingel
40, 6229 ER, Maastricht, The Netherlands
| |
Collapse
|
5
|
Kabiri A, Liaghat G, Alavi F, Ansari M, Hedayati SK. A comparative study of 3D printing and heat-compressing methods for manufacturing the thermoplastic composite bone fixation plate: Design, characterization, and in vitro biomechanical experimentation. Proc Inst Mech Eng H 2021; 235:1439-1452. [PMID: 34304634 DOI: 10.1177/09544119211034353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Metallic bone fixations, due to their high rigidity, can cause long-term complications. To alleviate metallic biomaterials' drawbacks, in this research new Glass Fiber/Polypropylene (GF/PP) composite internal fixations were developed, and an investigation of their mechanical behavior was performed through in vitro biomechanical experiments. Short randomly oriented, long unidirectional prepreg, and long unidirectional fiber yarn were considered as reinforcements, and the effects on their mechanical properties of different manufacturing processes, that is, 3D printing and heat-compressing, were investigated. The constructed fixation plates were tested in the transversely fractured diaphysis of bovine tibia under axial compression loading. The overall stiffness and the Von Mises strain field of the fixation plates were obtained within stable and unstable fracture conditions. The samples were loaded until failure to determine their failure loads, strains, and mechanisms. Based on the results, the GF/PP composite fixation plates can provide adequate interfragmentary movement to amplify bone ossification, so they can provide proper support for bone healing. Moreover, their potential for stress shielding reduction and their load-bearing capacity suggest their merits in replacing traditional metallic plates.
Collapse
Affiliation(s)
- Ali Kabiri
- Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Gholamhossein Liaghat
- Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran.,School of Mechanical & Aerospace Engineering, Kingston University, London, UK
| | - Fatemeh Alavi
- Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Ansari
- Department of Mechanical Engineering, Arak University of Technology, Arak, Iran
| | | |
Collapse
|
6
|
Aldas M, Ferri JM, Motoc DL, Peponi L, Arrieta MP, López-Martínez J. Gum Rosin as a Size Control Agent of Poly(Butylene Adipate-Co-Terephthalate) (PBAT) Domains to Increase the Toughness of Packaging Formulations Based on Polylactic Acid (PLA). Polymers (Basel) 2021; 13:polym13121913. [PMID: 34201407 PMCID: PMC8229187 DOI: 10.3390/polym13121913] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 12/03/2022] Open
Abstract
Gum rosin (GR) was used as a natural additive to improve the compatibility between polylactic acid, PLA, and poly(butylene adipate-co-terephthalate, PBAT, blended with 20 wt.% of PBAT (PLA/PBAT). The PBAT was used as a soft component to increase the ductility of PLA and its fracture toughness. The coalescence of the PBAT domains was possible due to the plasticization effect of the GR component. These domains contributed to increasing the toughness of the final material due to the variation and control of the PBAT domains’ size and consequently, reducing the stress concentration points. The GR was used in contents of 5, 10, 15, and 20 phr. Consequently, the flexural properties were improved and the impact resistance increased up to 80% in PLA/PBAT_15GR with respect to the PLA/PBAT formulation. Field emission scanning electron microscope (FESEM) images allowed observing that the size of PBAT domains of 2–3 µm was optimal to reduce the impact stress. Differential scanning calorimetry (DSC) analysis showed a reduction of up to 8 °C on the PLA melting temperature and up to 5.3 °C of the PLA glass transition temperature in the PLA/PBAT_20GR formulation, which indicates an improvement in the processability of PLA. Finally, transparent films with improved oxygen barrier performance and increased hydrophobicity were obtained suggesting the potential interest of these blends for the food packaging industry.
Collapse
Affiliation(s)
- Miguel Aldas
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, Spain;
- Departamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, 170517 Quito, Ecuador
- Correspondence: (M.A.); (J.M.F.); Tel.: +593-999-736-444 (M.A.); +34-699-495-982 (J.M.F.)
| | - José Miguel Ferri
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, Spain;
- Correspondence: (M.A.); (J.M.F.); Tel.: +593-999-736-444 (M.A.); +34-699-495-982 (J.M.F.)
| | - Dana Luca Motoc
- Department of Automotive and Transport Engineering, Transilvania University of Brasov, Eroilor Av., 500036 Brasov, Romania;
| | - Laura Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Marina Patricia Arrieta
- Departamento de Ingeniería Química Industrial y del Medio Ambiente, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid (ETSII-UPM), Calle José Gutiérrez Abascal 2, 28006 Madrid, Spain;
- Grupo de Investigación: Polímeros, Caracterización y Aplicaciones (POLCA), 28006 Madrid, Spain
| | - Juan López-Martínez
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, Spain;
| |
Collapse
|
7
|
Shuai C, Yang W, Feng P, Peng S, Pan H. Accelerated degradation of HAP/PLLA bone scaffold by PGA blending facilitates bioactivity and osteoconductivity. Bioact Mater 2021; 6:490-502. [PMID: 32995675 PMCID: PMC7493133 DOI: 10.1016/j.bioactmat.2020.09.001] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/29/2020] [Accepted: 09/01/2020] [Indexed: 12/11/2022] Open
Abstract
The incorporation of hydroxyapatite (HAP) into poly-l-lactic acid (PLLA) matrix serving as bone scaffold is expected to exhibit bioactivity and osteoconductivity to those of the living bone. While too low degradation rate of HAP/PLLA scaffold hinders the activity because the embedded HAP in the PLLA matrix is difficult to contact and exchange ions with body fluid. In this study, biodegradable polymer poly (glycolic acid) (PGA) was blended into the HAP/PLLA scaffold fabricated by laser 3D printing to accelerate the degradation. The results indicated that the incorporation of PGA enhanced the degradation rate of scaffold as indicated by the weight loss increasing from 3.3% to 25.0% after immersion for 28 days, owing to the degradation of high hydrophilic PGA and the subsequent accelerated hydrolysis of PLLA chains. Moreover, a lot of pores produced by the degradation of the scaffold promoted the exposure of HAP from the matrix, which not only activated the deposition of bone like apatite on scaffold but also accelerated apatite growth. Cytocompatibility tests exhibited a good osteoblast adhesion, spreading and proliferation, suggesting the scaffold provided a suitable environment for cell cultivation. Furthermore, the scaffold displayed excellent bone defect repair capacity with the formation of abundant new bone tissue and blood vessel tissue, and both ends of defect region were bridged after 8 weeks of implantation.
Collapse
Affiliation(s)
- Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China
- Shenzhen Institute of Information Technology, Shenzhen, 518172, China
| | - Wenjing Yang
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China
| | - Shuping Peng
- NHC Key Laboratory of Carcinogenesis, School of Basic Medical Science, Central South University, Changsha, Hunan, 410013, China
- School of Energy and Machinery Engineering, Jiangxi University of Science and Technology, Nanchang, 330013, China
| | - Hao Pan
- Department of Periodontics & Oral Mucosal Section, Xiangya Stomatological Hospital, Central South University, Changsha, 410013, China
| |
Collapse
|
8
|
Krishnakumar S, Senthilvelan T. Polymer composites in dentistry and orthopedic applications-a review. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.matpr.2020.08.463] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
9
|
Song N, Gao Z, Li X. Tailoring nanocomposite interfaces with graphene to achieve high strength and toughness. SCIENCE ADVANCES 2020; 6:6/42/eaba7016. [PMID: 33055154 PMCID: PMC7556841 DOI: 10.1126/sciadv.aba7016] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 08/25/2020] [Indexed: 05/03/2023]
Abstract
The nanofiller reinforcing effect in nanocomposites is often far below the theoretically predicted values, largely because of the poor interfacial interaction between the nanofillers and matrix. Here, we report that graphene-wrapped B4C nanowires (B4C-NWs@graphene) empowered exceptional dispersion of nanowires in matrix and superlative nanowire-matrix bonding. The 0.2 volume % B4C-NWs@graphene reinforced epoxy composite exhibited simultaneous enhancements in strength (144.2 MPa), elastic modulus (3.5 GPa), and ductility (15%). Tailoring the composite interfaces with graphene enabled effective utilization of the nanofillers, resulting in two times increase in load transfer efficiency. Molecular dynamics simulations unlocked the shear mixing graphene/nanowire self-assembly mechanism. This low-cost yet effective technique presents unprecedented opportunities for improving nanocomposite interfaces, enabling high load transfer efficiency, and opens up a new path for developing strong and tough nanocomposites.
Collapse
Affiliation(s)
- Ningning Song
- Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer's Way, Charlottesville, VA 22904, USA
| | - Zan Gao
- Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer's Way, Charlottesville, VA 22904, USA
| | - Xiaodong Li
- Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer's Way, Charlottesville, VA 22904, USA.
| |
Collapse
|
10
|
Xiong Z, Cui W, Sun T, Teng Y, Qu Y, Yang L, Zhou J, Chen K, Yao S, Shao Z, Guo X. Sustained delivery of PlGF-2 123-144*-fused BMP2-related peptide P28 from small intestinal submucosa/polylactic acid scaffold material for bone tissue regeneration. RSC Adv 2020; 10:7289-7300. [PMID: 35493905 PMCID: PMC9049782 DOI: 10.1039/c9ra07868a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 02/09/2020] [Indexed: 12/18/2022] Open
Abstract
Bone morphogenetic protein 2 (BMP-2) is one of the most important factors for bone tissue formation. However, its use over the past decade has been associated with numerous side effects. This is due to the fact that recombinant human (rh) BMP-2 has several biological functions, as well as that non-physiological high dosages were commonly administered. In this study, we synthesized a novel BMP-2-related peptide (designated P28) and fused a mutant domain in placenta growth factor-2 (PlGF-2123-144*) that allowed for the "super-affinity" of extracellular matrix proteins to P28, effectively controlling the release of low dosage P28 from small intestinal submucosa/polylactic acid (SIS/PLA) scaffolds. These have been shown to be excellent scaffold materials both in vivo and in vitro. The aim of this study was to determine whether these scaffolds could support the controlled release of P28 over time, and whether the composite materials could serve as structurally and functionally superior bone substitutes in vivo. Our results demonstrated that P28 could be released slowly from SIS/PLA to promote the adhesion, proliferation, and differentiation of bone marrow stromal cells (BMSCs) in vitro. In vivo, radiographic and histological examination showed that SIS/PLA/P28/PlGF-2123-144* completely repaired critical-size bone defects, compared to SIS/PLA, SIS/PLA/PlGF-2123-144*, or SIS/PLA/P28 alone. These findings suggest that this controlled release system may have promising clinical applications in bone tissue engineering.
Collapse
Affiliation(s)
- Zekang Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Wei Cui
- Department of Orthopedics, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430000 People's Republic of China
| | - Tingfang Sun
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Yu Teng
- Department of Orthopedics, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430014 People's Republic of China
| | - Yanzhen Qu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Liang Yang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Jinge Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Kaifang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Sheng Yao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| |
Collapse
|
11
|
Esposito Corcione C, Gervaso F, Scalera F, Montagna F, Maiullaro T, Sannino A, Maffezzoli A. 3D printing of hydroxyapatite polymer-based composites for bone tissue engineering. JOURNAL OF POLYMER ENGINEERING 2017. [DOI: 10.1515/polyeng-2016-0194] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Skeletal defects reconstruction, using custom-made substitutes, represents a valid solution to replacing lost and damaged anatomical bone structures, renew their original function, and at the same time, restore the original aesthetic aspect. Rapid prototyping (RP) techniques allow the construction of complex physical models based on 3D clinical images. However, RP machines usually work with synthetic polymers; therefore, producing custom-made scaffolds using a biocompatible material directly by RP is an exciting challenge. The aim of the present work is to investigate the potentiality of 3D printing as a manufacturing method to produce an osteogenic hydroxyapatite-polylactic acid bone graft substitute.
Collapse
|
12
|
Moeini S, Mohammadi MR, Simchi A. In-situ solvothermal processing of polycaprolactone/hydroxyapatite nanocomposites with enhanced mechanical and biological performance for bone tissue engineering. Bioact Mater 2017; 2:146-155. [PMID: 29744424 PMCID: PMC5935180 DOI: 10.1016/j.bioactmat.2017.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/13/2017] [Indexed: 11/26/2022] Open
Abstract
The interest in biodegradable polymer-matrix nanocomposites with bone regeneration potential has been increasing in recent years. In the present work, a solvothermal process is introduced to prepare hydroxyapatite (HA) nanorod-reinforced polycaprolactone in-situ. A non-aqueous polymer solution containing calcium and phosphorous precursors is prepared and processed in a closed autoclave at different temperatures in the range of 60–150 °C. Hydroxyapatite nanorods with varying aspect ratios are formed depending on the processing temperature. X-ray diffraction analysis and field-emission scanning electron microscopy indicate that the HA nanorods are semi-crystalline. Energy-dispersive X-ray spectroscopy and Fourier transform infrared spectrometry determine that the ratio of calcium to phosphorous increases as the processing temperature increases. To evaluate the effect of in-situ processing on the mechanical properties of the nanocomposites, highly porous scaffolds (>90%) containing HA nanorods are prepared by employing freeze drying and salt leaching techniques. It is shown that the elastic modulus and strength of the nanocomposites prepared by the in-situ method is superior (∼15%) to those of the ex-situ samples (blended HA nanorods with the polymer solution). The enhanced bone regeneration potential of the nanocomposites is shown via an in vitro bioactivity assay in a saturated simulated body fluid. An improved cell viability and proliferation is also shown by employing (3-(4,5- dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide) (MTT) assay in human osteosarcoma cell lines. The prepared scaffolds with in vitro regeneration capacity could be potentially useful for orthopaedic applications and maxillofacial surgery. A new solvothermal procedure was introduced to prepare PCL nanocomposites reinforced with HA nanorods. The aspect ratio of the HA nanorods increased from 2 to 7 by increasing the temperature. The in-situ nanocomposites exhibited better mechanical strength and bioactivity compared to the ex-situ ones. The effect of HA nanorods on the in vitro cell response of PCL scaffolds was shown.
Collapse
Affiliation(s)
- Saeed Moeini
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Reza Mohammadi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
| | - Abdolreza Simchi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran.,Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| |
Collapse
|
13
|
Heimbach B, Grassie K, Shaw MT, Olson JR, Wei M. Effect of hydroxyapatite concentration on high-modulus composite for biodegradable bone-fixation devices. J Biomed Mater Res B Appl Biomater 2016; 105:1963-1971. [PMID: 27300308 DOI: 10.1002/jbm.b.33713] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/27/2016] [Accepted: 05/01/2016] [Indexed: 11/06/2022]
Abstract
There are over 3 million bone fractures in the United States annually; over 30% of which require internal mechanical fixation devices to aid in the healing process. The current standard material used is a metal plate that is implanted onto the bone. However, metal fixation devices have many disadvantages, namely stress shielding and metal ion leaching. This study aims to fix these problems of metal implants by making a completely biodegradable material that will have a high modulus and exhibit great toughness. To accomplish this, long-fiber poly-l-lactic acid (PLLA) was utilized in combination with a matrix composed of polycaprolactone (PCL) and hydroxyapatite (HA) nano-rods. Through single fibril tensile tests, it was found that the PLLA fibers have a Young's modulus of 8.09 GPa. Synthesized HA nanorods have dimensions in the nanometer range with an aspect ratio over 6. By dip coating PLLA fibers in a suspension of PCL and HA and hot pressing the resulting coated fibers, dense fiber-reinforced samples were made having a flexural modulus up to 9.2 GPa and a flexural strength up to 187 MPa. The flexural modulus of cortical bone ranges from 7 to 25 GPa, so the modulus of the composite material falls into the range of bone. The typical flextural strength of bone is 130 MPa, and the samples here greatly exceed that with a strength of 187 MPa. After mechanical testing to failure the samples retained their shape, showing toughness with no catastrophic failure, indicating the possibility for use as a fixation material. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1963-1971, 2017.
Collapse
Affiliation(s)
- Bryant Heimbach
- Department of Biomedical Engineering, University of Connecticut, Connecticut
| | - Kevin Grassie
- Department of Biomedical Engineering, University of Connecticut, Connecticut
| | - Montgomery T Shaw
- Institute of Material Science (IMS), 97 North Eagleville Road, University of Connecticut, Storrs CT 06269-3136 Connecticut
| | - James R Olson
- Teleflex Medical, 1295 Main Street, Coventry, Connecticut, 06238
| | - Mei Wei
- Department of Biomedical Engineering, University of Connecticut, Connecticut.,Institute of Material Science (IMS), 97 North Eagleville Road, University of Connecticut, Storrs CT 06269-3136 Connecticut.,Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, 06269
| |
Collapse
|
14
|
Peng W, Zheng W, Shi K, Wang W, Shao Y, Zhang D. An
in vivo
evaluation of PLLA/PLLA-gHA nano-composite for internal fixation of mandibular bone fractures. Biomed Mater 2015; 10:065007. [DOI: 10.1088/1748-6041/10/6/065007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
15
|
Dorozhkin SV. Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications. J Funct Biomater 2015; 6:708-832. [PMID: 26262645 PMCID: PMC4598679 DOI: 10.3390/jfb6030708] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 12/30/2022] Open
Abstract
The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.
Collapse
|
16
|
Siqueira IAWB, Oliveira CAGS, Zanin H, Grinet MAVM, Granato AEC, Porcionatto MA, Marciano FR, Lobo AO. Bioactivity behaviour of nano-hydroxyapatite/freestanding aligned carbon nanotube oxide composite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:113. [PMID: 25665850 DOI: 10.1007/s10856-015-5450-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/29/2014] [Indexed: 06/04/2023]
Abstract
Bioactive and low cytotoxic three dimensional nano-hydroxyapatite (nHAp) and aligned carbon nanotube oxide (a-CNTO) composite has been investigated. First, freestanding aligned carbon nanotubes porous scaffold was prepared by large-scale thermal chemical vapour deposition and functionalized by oxygen plasma treatment, forming a-CNTO. The a-CNTO was covered with plate-like nHAp crystals prepared by in situ electrodeposition techniques, forming nHAp/a-CNTO composite. After that nHAp/a-CNTO composite was immersed in simulated body fluid for composite consolidation. This novel nanobiomaterial promotes mesenchymal stem cell adhesion with the active formation of membrane projections, cell monolayer formation and high cell viability.
Collapse
Affiliation(s)
- Idalia A W B Siqueira
- Laboratory of Biomedical Nanotechnology, Institute of Research and Development (IP&D), University of Vale do Paraiba, Av. Shishima Hifumi 2911, Sao Jose dos Campos, São Paulo, CEP/12224-000, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Jiang S, Wang H, Chu C, Ma X, Sun M, Jiang S. Synthesis of antimicrobial Nisin-phosphorylated soybean protein isolate/poly(l-lactic acid)/ZrO2 membranes. Int J Biol Macromol 2015; 72:502-9. [DOI: 10.1016/j.ijbiomac.2014.08.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/06/2014] [Accepted: 08/09/2014] [Indexed: 11/16/2022]
|
18
|
Becker J, Lu L, Runge MB, Zeng H, Yaszemski MJ, Dadsetan M. Nanocomposite bone scaffolds based on biodegradable polymers and hydroxyapatite. J Biomed Mater Res A 2014; 103:2549-57. [PMID: 25504776 DOI: 10.1002/jbm.a.35391] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/26/2014] [Accepted: 12/04/2014] [Indexed: 01/19/2023]
Abstract
In tissue engineering, development of an osteoconductive construct that integrates with host tissue remains a challenge. In this work, the effect of bone-like minerals on maturation of pre-osteoblast cells was investigated using polymer-mineral scaffolds composed of poly(propylene fumarate)-co-poly(caprolactone) (PPF-co-PCL) and nano-sized hydroxyapatite (HA). The HA of varying concentrations was added to an injectable formulation of PPF-co-PCL and the change in thermal and mechanical properties of the scaffolds was evaluated. No change in onset of degradation temperature was observed due to the addition of HA, however compressive and tensile moduli of copolymer changed significantly when HA amounts were increased in composite formulation. The change in mechanical properties of copolymer was found to correlate well to HA concentration in the constructs. Electron microscopy revealed mineral nucleation and a change in surface morphology and the presence of calcium and phosphate on surfaces was confirmed using energy dispersive X-ray analysis. To characterize the effect of mineral on attachment and maturation of pre-osteoblasts, W20-17 cells were seeded on HA/copolymer composites. We demonstrated that cells attached more to the surface of HA containing copolymers and their proliferation rate was significantly increased. Thus, these findings suggest that HA/PPF-co-PCL composite scaffolds are capable of inducing maturation of pre-osteoblasts and have the potential for use as scaffold in bone tissue engineering.
Collapse
Affiliation(s)
- Johannes Becker
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905.,Department of Traumatology and Sports Injuries, University Hospital Salzburg, Paracelsus Medical University Salzburg, Müllner Hauptstr, 48, Salzburg, 5020, Austria
| | - Lichun Lu
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905
| | - M Brett Runge
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905
| | - Heng Zeng
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905
| | - Michael J Yaszemski
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905
| | - Mahrokh Dadsetan
- Department of Orthopedic Surgery, Mayo Clinic, College of Medicine, Rochester, Minnesota, 55905
| |
Collapse
|
19
|
In situ preparation of poly(l-lactic acid-co-glycolic acid)/hydroxyapatite composites as artificial bone materials. Polym J 2014. [DOI: 10.1038/pj.2014.121] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
20
|
Paliwal R, Babu RJ, Palakurthi S. Nanomedicine scale-up technologies: feasibilities and challenges. AAPS PharmSciTech 2014; 15:1527-34. [PMID: 25047256 DOI: 10.1208/s12249-014-0177-9] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 06/27/2014] [Indexed: 01/28/2023] Open
Abstract
Nanomedicine refers to biomedical and pharmaceutical applications of nanosized cargos of drugs/vaccine/DNA therapeutics including nanoparticles, nanoclusters, and nanospheres. Such particles have unique characteristics related to their size, surface, drug loading, and targeting potential. They are widely used to combat disease by controlled delivery of bioactive(s) or for diagnosis of life-threatening problems in their very early stage. The bioactive agent can be combined with a diagnostic agent in a nanodevice for theragnostic applications. However, the formulation scientist faces numerous challenges related to their development, scale-up feasibilities, regulatory aspects, and commercialization. This article reviews recent progress in the method of development of nanoparticles with a focus on polymeric and lipid nanoparticles, their scale-up techniques, and challenges in their commercialization.
Collapse
|
21
|
Ma R, Tang S, Tan H, Lin W, Wang Y, Wei J, Zhao L, Tang T. Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material. Int J Nanomedicine 2014; 9:3949-61. [PMID: 25170265 PMCID: PMC4145828 DOI: 10.2147/ijn.s67358] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A bioactive composite was prepared by incorporating 40 wt% nano-hydroxyapatite (nHA) into polyetheretherketone (PEEK) through a process of compounding, injection, and molding. The mechanical and surface properties of the nHA/PEEK composite were characterized, and the in vitro osteoblast functions in the composite were investigated. The mechanical properties (elastic modulus and compressive strength) of the nHA/PEEK composite increased significantly, while the tensile strength decreased slightly as compared with PEEK. Further, the addition of nHA into PEEK increased the surface roughness and hydrophilicity of the nHA/PEEK composite. In cell tests, compared with PEEK and ultra-high-molecular-weight polyethylene, it was found that the nHA/PEEK composite could promote the functions of MC3T3-E1 cells, including cell attachment, spreading, proliferation, alkaline phosphatase activity, calcium nodule formation, and expression of osteogenic differentiation-related genes. Incorporation of nHA into PEEK greatly improved the bioperformance of PEEK. The nHA/PEEK composite might be a promising orthopedic implant material.
Collapse
Affiliation(s)
- Rui Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Honglue Tan
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Wentao Lin
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Yugang Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Liming Zhao
- Key Laboratory for Ultrafine Materials of Ministry of Education and The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| |
Collapse
|
22
|
Effect of bioactive extruded PLA/HA composite films on focal adhesion formation of preosteoblastic cells. Colloids Surf B Biointerfaces 2014; 121:409-16. [PMID: 24986753 DOI: 10.1016/j.colsurfb.2014.06.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 11/23/2022]
Abstract
The quality of the initial cell attachment to a biomaterial will influence any further cell function, including spreading, proliferation, differentiation and viability. Cell attachment is influenced by the material's ability to adsorb proteins, which is related to the surface chemistry and topography of the material. In this study, we incorporated hydroxyapatite (HA) particles into a poly(lactic acid) (PLA) composite and evaluated the surface structure and the effects of HA density on the initial cell attachment in vitro of murine calvarial preosteoblasts (MC3T3-EI). Scanning electron microscopy (SEM), atomic force microscopy (AFM) and infrared spectroscopy (FTIR) showed that the HA particles were successfully incorporated into the PLA matrix and located at the surface which is of importance in order to maintain the bioactive effect of the HA particles. SEM and AFM investigation revealed that the HA density (particles/area) as well as surface roughness increased with HA loading concentration (i.e. 5, 10, 15 and 20wt%), which promoted protein adsorption. Furthermore, the presence of HA on the surface enhanced cell spreading, increased the formation of actin stress fibers and significantly improved the expression of vinculin in MC3T3-E1 cells which is a key player in the regulation of cell adhesion. These results suggest the potential utility of PLA/HA composites as biomaterials for use as a bone substitute material and in tissue engineering applications.
Collapse
|
23
|
Fabrication and characterization of novel biomimetic PLLA/cellulose/hydroxyapatite nanocomposite for bone repair applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:120-5. [DOI: 10.1016/j.msec.2014.02.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/27/2014] [Accepted: 02/17/2014] [Indexed: 11/24/2022]
|
24
|
Dong J, Zhang S, Ma J, Liu H, Du Y, Liu Y. Preparation, characterization, and in vitro cytotoxicity evaluation of a novel anti-tuberculosis reconstruction implant. PLoS One 2014; 9:e94937. [PMID: 24740373 PMCID: PMC3989261 DOI: 10.1371/journal.pone.0094937] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 03/21/2014] [Indexed: 11/17/2022] Open
Abstract
Background Reconstruction materials currently used in clinical for osteoarticular tuberculosis (TB) are unsatisfactory due to a variety of reasons. Rifampicin (RFP) is a well-known and highly effective first-line anti-tuberculosis (anti-TB) drug. Poly-DL-lactide (PDLLA) and nano-hydroxyapatite (nHA) are two promising materials that have been used both for orthopedic reconstruction and as carriers for drug release. In this study we report the development of a novel anti-TB implant for osteoarticular TB reconstruction using a combination of RFP, PDLLA and nHA. Methods RFP, PDLLA and nHA were used as starting materials to produce a novel anti-TB activity implant by the solvent evaporation method. After manufacture, the implant was characterized and its biodegradation and drug release profile were tested. The in vitro cytotoxicity of the implant was also evaluated in pre-osteoblast MC3T3-E1 cells using multiple methodologies. Results A RFP/PDLLA/nHA composite was successfully synthesized using the solvent evaporation method. The composite has a loose and porous structure with evenly distributed pores. The production process was steady and no chemical reaction occurred as proved by Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray Diffraction (XRD). Meanwhile, the composite blocks degraded and released drug for at least 12 weeks. Evaluation of in vitro cytotoxicity in MC3T3-E1 cells verified that the synthesized composite blocks did not affect cell growth and proliferation. Conclusion It is feasible to manufacture a novel bioactive anti-TB RFP/PDLLA/nHA composite by the solvent evaporation method. The composite blocks showed appropriate properties such as degradation, drug release and biosafety to MC3T3-E1 cells. In conclusion, the novel composite blocks may have great potential for clinical applications in repairing bone defects caused by osteoarticular TB.
Collapse
Affiliation(s)
- JunFeng Dong
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - ShengMin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, P.R. China
- * E-mail:
| | - Jun Ma
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - HaoMing Liu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - YingYing Du
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - YongHui Liu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P.R. China
| |
Collapse
|
25
|
A Review of Hydroxyapatite Coatings Manufactured by Thermal Spray. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2014. [DOI: 10.1007/978-3-642-53980-0_9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
26
|
Dou Y, Wu C, Chang J. Preparation, mechanical property and cytocompatibility of poly(L-lactic acid)/calcium silicate nanocomposites with controllable distribution of calcium silicate nanowires. Acta Biomater 2012; 8:4139-50. [PMID: 22813849 DOI: 10.1016/j.actbio.2012.07.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/09/2012] [Accepted: 07/10/2012] [Indexed: 01/17/2023]
Abstract
How to accurately control the microstructure of bioactive inorganic/organic nanocomposites still remains a significant challenge, which is of great importance in influencing their mechanical strength and biological properties. In this study, using a combined method of electrospinning and hot press processing, calcium silicate hydrate (CSH) nanowire/poly(L-lactide) (PLLA) nanocomposites with controllable microstructures and tailored mechanical properties were successfully prepared as potential bone graft substitutes. The electrospun hybrid nanofibers with various degrees of alignment were stacked together in a predetermined manner and hot pressed into hierarchically structured nanocomposites. The relationship between the microstructure and mechanical properties of the as-prepared nanocomposites were systematically evaluated. The results showed that CSH nanowires in a PLLA matrix were able to be controlled from completely randomly oriented to uniaxially aligned, and then hierarchically organized with different interlayer angles, leading to corresponding nanocomposites with improved mechanical properties and varied anisotropies. It was also found that the bending strength of nanocomposites with 5 wt.% CSH nanowires (130 MPa) was significantly higher than that of pure PLLA (86 MPa) and other composites. The addition of CSH nanowires greatly enhanced the hydrophilicity and apatite-forming ability of PLLA films, as well as the attachment and proliferation of bone marrow stromal cells. The study suggested that a combination of electrospinning and hot pressing is a viable means to control the microstructure and mechanical properties, and improve the mineralization ability and cellular responses, of CSH/PLLA nanocomposites for potential bone repair applications.
Collapse
|
27
|
Lai PL, Hong DW, Liu TH, Lai ZT, Cheng MH, Chen LH, Chen WJ, Chu IM. Validity of poly(1, 6-bis-(p-carboxyphenoxy hexane)-co-(sebacic anhydride)) copolymer in biomedical application. J Appl Polym Sci 2012. [DOI: 10.1002/app.38597] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|