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Zhu T, Zhu J, Lu S, Mo X. Evaluation of electrospun PCL diol-based elastomer fibers as a beneficial matrix for vascular tissue engineering. Colloids Surf B Biointerfaces 2022; 220:112963. [DOI: 10.1016/j.colsurfb.2022.112963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022]
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Liu C, Qin W, Wang Y, Ma J, Liu J, Wu S, Zhao H. 3D Printed Gelatin/Sodium Alginate Hydrogel Scaffolds Doped with Nano-Attapulgite for Bone Tissue Repair. Int J Nanomedicine 2021; 16:8417-8432. [PMID: 35002236 PMCID: PMC8722573 DOI: 10.2147/ijn.s339500] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/30/2021] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Bone tissue engineering (BTE) is a new strategy for bone defect repair, but the difficulties in the fabrication of scaffolds with personalized structures still limited their clinical applications. The rapid development in three-dimensional (3D) printing endows it capable of controlling the porous structures of scaffolds with high structural complexity and provides flexibility to meet specific needs of bone repair. METHODS In this study, sodium alginate (SA)/gelatin (Gel) hydrogel scaffolds doped with different contents of nano-attapulgite were fabricated via 3D printing. The surface microstructure, hydrophilicity and mechanical properties were fully evaluated. Furthermore, mouse bone marrow-derived mesenchymal stem cells (BMSCs) were cultured with the composite hydrogels in vitro, and proliferation and osteoblastic differentiation were assessed. A rabbit tibia plateau defect model was used to evaluate the osteogenic potential of the composite hydrogel in vivo. RESULTS When increasing nano-ATP content, the Gel/SA/nano-ATP composite hydrogels showed better mechanical property and printability. Moreover, Gel/SA/nano-ATP composite hydrogels showed excellent bioactivity, and a significant mineralization effect was observed on the surface after being incubated in simulated body fluid (SBF) for 14 days. The Gel/SA/nano-ATP composite hydrogel also showed good biocompatibility and promoted the osteogenesis of BMSCs. Finally, histological analysis demonstrates that the Gel/SA/nano-ATP composite hydrogels could effectively enhance bone regeneration in vivo. CONCLUSION These properties render the Gel/SA/nano-ATP composite hydrogel scaffolds an ideal bone tissue engineering material for the repair of bone defects.
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Affiliation(s)
- Chun Liu
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Wen Qin
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Yan Wang
- Department of Clinical Laboratory, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Jiayi Ma
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Jun Liu
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Siyu Wu
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
| | - Hongbin Zhao
- Medical Research Centre, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, 213164, People’s Republic of China
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Low Frequency Dielectric and Optical Behavior on Physicochemical Properties of Hydroxyapatite/Cornstarch Composite. J Colloid Interface Sci 2021; 600:187-198. [PMID: 34015511 DOI: 10.1016/j.jcis.2021.03.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/22/2021] [Accepted: 03/28/2021] [Indexed: 11/20/2022]
Abstract
An investigation on relationship among the physicochemical, optical and dielectric properties of the hydroxyapatite/cornstarch (HA/Cs) composites with the starch proportion of 30, 40, 50, 60, 70, 80 and 90 wt% is presented in this work. The HA/Cs composites have been characterized via FTIR, XRD, DRS and impedance analyzer. This work depicts that the strong interaction is exhibited between the hydroxyapatite nanoparticles and starch as the starch proportion increases. This increment trend results in the higher crystallinity of the HA/Cs composites. The highly crystallized HA/Cs with hydroxyapatite nucleation center presents low optical properties (diffuse reflectance and optical band gap energy). The HA/Cs composite with 80 wt% starch proportion (H2C8) show higher dielectric properties (dielectric constant, loss factor and conductivity) due to the stronger interfacial interaction and close-packed HA/Cs crystalline structure. The relationship among the physicochemical, optical and dielectric properties of the HA/Cs composite is studied in this work for potential of instrumentation design.
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Three-Dimensional Printing of Hydroxyapatite Composites for Biomedical Application. CRYSTALS 2021. [DOI: 10.3390/cryst11040353] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydroxyapatite (HA) and HA-based nanocomposites have been recognized as ideal biomaterials in hard tissue engineering because of their compositional similarity to bioapatite. However, the traditional HA-based nanocomposites fabrication techniques still limit the utilization of HA in bone, cartilage, dental, applications, and other fields. In recent years, three-dimensional (3D) printing has been shown to provide a fast, precise, controllable, and scalable fabrication approach for the synthesis of HA-based scaffolds. This review therefore explores available 3D printing technologies for the preparation of porous HA-based nanocomposites. In the present review, different 3D printed HA-based scaffolds composited with natural polymers and/or synthetic polymers are discussed. Furthermore, the desired properties of HA-based composites via 3D printing such as porosity, mechanical properties, biodegradability, and antibacterial properties are extensively explored. Lastly, the applications and the next generation of HA-based nanocomposites for tissue engineering are discussed.
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Liang W, Wu X, Dong Y, Shao R, Chen X, Zhou P, Xu F. In vivo behavior of bioactive glass-based composites in animal models for bone regeneration. Biomater Sci 2021; 9:1924-1944. [PMID: 33506819 DOI: 10.1039/d0bm01663b] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This review presents the recent advances and the current state-of-the-art of bioactive glass-based composite biomaterials intended for bone regeneration. Composite materials comprise two (or more) constituents at the nanometre scale, in which typically, one constituent is organic and functions as the matrix phase and the other constituent is inorganic and behaves as the reinforcing phase. Such materials, thereby, more closely resemble natural bio-nanocomposites such as bone. Various glass compositions in combination with a wide range of natural and synthetic polymers have been evaluated in vivo under experimental conditions ranging from unloaded critical-sized defects to mechanically-loaded, weight-bearing sites with highly favourable outcomes. Additional possibilities include controlled release of anti-osteoporotic drugs, ions, antibiotics, pro-angiogenic substances and pro-osteogenic substances. Histological and morphological evaluations suggest the formation of new, highly vascularised bone that displays signs of remodelling over time. With the possibility to tailor the mechanical and chemical properties through careful selection of individual components, as well as the overall geometry (from mesoporous particles and micro-/nanospheres to 3D scaffolds and coatings) through innovative manufacturing processes, such biomaterials present exciting new avenues for bone repair and regeneration.
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Affiliation(s)
- Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan 316000, Zhejiang Province, P. R. China.
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Badekila AK, Kini S, Jaiswal AK. Fabrication techniques of biomimetic scaffolds in three-dimensional cell culture: A review. J Cell Physiol 2020; 236:741-762. [PMID: 32657458 DOI: 10.1002/jcp.29935] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 07/03/2020] [Indexed: 12/20/2022]
Abstract
In the last four decades, several researchers worldwide have routinely and meticulously exercised cell culture experiments in two-dimensional (2D) platforms. Using traditionally existing 2D models, the therapeutic efficacy of drugs has been inappropriately validated due to the failure in generating the precise therapeutic response. Fortunately, a 3D model addresses the foregoing limitations by recapitulating the in vivo environment. In this context, one has to contemplate the design of an appropriate scaffold for favoring the organization of cell microenvironment. Instituting pertinent model on the platter will pave way for a precise mimicking of in vivo conditions. It is because animal cells in scaffolds oblige spontaneous formation of 3D colonies that molecularly, phenotypically, and histologically resemble the native environment. The 3D culture provides insight into the biochemical aspects of cell-cell communication, plasticity, cell division, cytoskeletal reorganization, signaling mechanisms, differentiation, and cell death. Focusing on these criteria, this paper discusses in detail, the diversification of polymeric scaffolds based on their available resources. The paper also reviews the well-founded and latest techniques of scaffold fabrication, and their applications pertaining to tissue engineering, drug screening, and tumor model development.
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Affiliation(s)
- Anjana K Badekila
- Nitte University Centre for Science Education and Research, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Sudarshan Kini
- Nitte University Centre for Science Education and Research, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Amit K Jaiswal
- Centre for Biomaterials, Cellular, and Molecular Theranostics, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Amirsadeghi A, Jafari A, Eggermont LJ, Hashemi SS, Bencherif SA, Khorram M. Vascularization strategies for skin tissue engineering. Biomater Sci 2020; 8:4073-4094. [DOI: 10.1039/d0bm00266f] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lack of proper vascularization after skin trauma causes delayed wound healing. This has sparked the development of various tissue engineering strategies to improve vascularization.
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Affiliation(s)
- Armin Amirsadeghi
- Department of Chemical Engineering
- School of Chemical and Petroleum Engineering
- Shiraz University
- Shiraz 71348-51154
- Iran
| | - Arman Jafari
- Department of Chemical Engineering
- School of Chemical and Petroleum Engineering
- Shiraz University
- Shiraz 71348-51154
- Iran
| | | | - Seyedeh-Sara Hashemi
- Burn & Wound Healing Research Center
- Shiraz University of Medical Science
- Shiraz 71345-1978
- Iran
| | - Sidi A. Bencherif
- Department of Chemical Engineering
- Northeastern University
- Boston
- USA
- Department of Bioengineering
| | - Mohammad Khorram
- Department of Chemical Engineering
- School of Chemical and Petroleum Engineering
- Shiraz University
- Shiraz 71348-51154
- Iran
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Han Q, Wang C, Chen H, Zhao X, Wang J. Porous Tantalum and Titanium in Orthopedics: A Review. ACS Biomater Sci Eng 2019; 5:5798-5824. [PMID: 33405672 DOI: 10.1021/acsbiomaterials.9b00493] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Porous metal is metal with special porous structures, which can offer high biocompatibility and low Young's modulus to satisfy the need for orthopedic applications. Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous titanium and tantalum have been studied and applied for a long history until now. Here in this review, various manufacturing methods of titanium and tantalum porous metals are introduced. Application of these porous metals in different parts of the body are summarized, and strengths and weaknesses of these porous metal implants in clinical practice are discussed frankly for future improvement from the viewpoint of orthopedic surgeons. Then according to the requirements from clinics, progress in research for clinical use is illustrated in four aspects. Various creative designs of microporous and functionally gradient structure, surface modification, and functional compound systems of porous metal are exhibited as reference for future research. Finally, the directions of orthopedic porous metal development were proposed from the clinical view based on the rapid progress of additive manufacturing. Controllable design of both macroscopic anatomical bionic shape and microscopic functional bionic gradient porous metal, which could meet the rigorous mechanical demand of bone reconstruction, should be developed as the focus. The modification of a porous metal surface and construction of a functional porous metal compound system, empowering stronger cell proliferation and antimicrobial and antineoplastic property to the porous metal implant, also should be taken into consideration.
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Affiliation(s)
- Qing Han
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Chenyu Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Hao Chen
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Xue Zhao
- Department of Endocrine and Metabolism, The First Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Jincheng Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
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Wen X, Shen M, Bai Y, Xu C, Han X, Yang H, Yang L. Biodegradable cell‐laden starch foams for the rapid fabrication of 3D tissue constructs and the application in neural tissue engineering. J Biomed Mater Res B Appl Biomater 2019; 108:104-116. [PMID: 30916468 DOI: 10.1002/jbm.b.34370] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 02/24/2019] [Accepted: 03/05/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Xiaoxiao Wen
- Institute of OrthopaedicsFirst Affiliated Hospital of Soochow University, Soochow University Suzhou 215006 China
| | - Minjie Shen
- Institute of OrthopaedicsFirst Affiliated Hospital of Soochow University, Soochow University Suzhou 215006 China
- Department of OrthopaedicsThe First Affiliated Hospital of Soochow University Suzhou 215006 China
| | - Yanjie Bai
- School of Public Health, Medical CollegeSoochow University Suzhou 215006 China
| | - Changlu Xu
- Institute of OrthopaedicsFirst Affiliated Hospital of Soochow University, Soochow University Suzhou 215006 China
- Materials Science and Engineering ProgramUniversity of California Riverside, Riverside California 92521
| | - Xinglong Han
- Institute for Cardiovascular Science & Department of Cardiovascular Surgery of the First Affiliated Hospital, Medical CollegeSoochow University Suzhou 215000 China
| | - Huilin Yang
- Institute of OrthopaedicsFirst Affiliated Hospital of Soochow University, Soochow University Suzhou 215006 China
- Department of OrthopaedicsThe First Affiliated Hospital of Soochow University Suzhou 215006 China
- International Research Center for Translational Orthopaedics (IRCTO) Suzhou 215006 China
| | - Lei Yang
- Institute of OrthopaedicsFirst Affiliated Hospital of Soochow University, Soochow University Suzhou 215006 China
- International Research Center for Translational Orthopaedics (IRCTO) Suzhou 215006 China
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Liu Y, Xu C, Gu Y, Shen X, Zhang Y, Li B, Chen L. Polydopamine-modified poly(l-lactic acid) nanofiber scaffolds immobilized with an osteogenic growth peptide for bone tissue regeneration. RSC Adv 2019; 9:11722-11736. [PMID: 35516986 PMCID: PMC9063423 DOI: 10.1039/c8ra08828d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/25/2019] [Indexed: 11/30/2022] Open
Abstract
It is highly desirable for bone tissue engineering scaffolds to have significant osteogenic properties and capability to improve cell growth and thus enhance bone regeneration. In this study, a poly(l-lactic acid) (PLLA) nanofiber scaffold-immobilized osteogenic growth peptide (OGP) was prepared via polydopamine (PDA) coating. X-ray photoelectron spectroscopy (XPS), contact angle measurement, and scanning electron microscopy (SEM) were used to determine the OGP immobilization, hydrophilicity and surface roughness of the samples. The SEM and fluorescence images demonstrate that the PLLA nanofiber scaffolds immobilized with the OGP have excellent cytocompatibility in terms of cell adhesion and proliferation. The ALP activity and the Runx2 and OPN expression results indicated that the PLLA nanofiber scaffolds immobilized with OGP significantly enhanced the osteogenic differentiation and calcium mineralization of hMSCs in vitro. A rat model of critical skull bone defect was selected to evaluate the bone formation capacity of the scaffolds. Micro CT analysis and histological results demonstrated that the PLLA scaffolds immobilized with OGP significantly promoted bone regeneration in critical-sized bone defects. This study verifies that the PLLA scaffold-immobilized OGP has significant potential in bone tissue engineering. Polydopamine-modified PLLA nanofiber scaffolds immobilized with osteogenic growth peptide were designed and prepared for promoting bone formation.![]()
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Affiliation(s)
- Yong Liu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
- Department of Orthopaedic Surgery
| | - Changlu Xu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
- Orthopedic Institute
| | - Yong Gu
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
| | - Xiaofeng Shen
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine
- China
| | - Yanxia Zhang
- Institute for Cardiovascular Science & Department of Cardiovascular Surgery of the First Affiliated Hospital
- Soochow University
- Suzhou
- PR China
| | - Bin Li
- Orthopedic Institute
- Soochow University
- Suzhou
- PR China
| | - Liang Chen
- Department of Orthopaedic Surgery
- The First Affiliated Hospital of Soochow University
- Suzhou
- PR China
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