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Ma R, Su Y, Cao R, Wang K, Yang P. Enhanced Osteogenic Activity and Bone Repair Ability of PLGA/MBG Scaffolds Doped with ZIF-8 Nanoparticles Loaded with BMP-2. Int J Nanomedicine 2023; 18:5055-5072. [PMID: 37701821 PMCID: PMC10493152 DOI: 10.2147/ijn.s423985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/20/2023] [Indexed: 09/14/2023] Open
Abstract
Background Tissue engineering scaffolds are porous and can be loaded with growth factors to promote osteogenesis and bone repair, which can solve the problem of clinical bone defects. The direct loading of growth factors on scaffolds is hindered by the disadvantages of low loading capacities, and uncontrollable burst release. Zeolitic imidazolate framework-8 (ZIF-8) has osteoinductive activity and drug-loading potential and can be loaded with growth factors to achieve sustained release. In this study, we aimed to establish a sustained release system of composite scaffolds loaded with growth factors to achieve the goal of slow controlled release and effective bone repair. Methods ZIF‑8 nanoparticles loaded with bone morphogenetic protein-2 (BMP-2) were incorporated into poly-(lactide-co-glycolide)/mesoporous bioactive glass (PLGA/MBG) porous scaffolds by a 3D-printing method. The surface morphology, chemical properties and BMP-2 release of the prepared scaffold were investigated. The osteoblast adhesion, proliferation, spreading, and osteogenic differentiation in vitro and the bone repair ability in vivo of the PLGA/MBG/ZIF-8/BMP-2 (PMZB) scaffold were evaluated, and compared with those of PLGA/MBG (PM) and PLGA/MBG/ZIF-8 (PMZ) scaffolds. Results The results showed that the PMZB scaffold exhibited a slow and continuous BMP-2 release pattern, enhanced osteoblast adhesion, proliferation, spreading and osteogenic differentiation in vitro, and promoted new bone formation and bone repair in vivo. Conclusion The PLGA/MBG/ZIF-8/BMP-2 porous scaffold could continuously and slowly release BMP-2, enhance osteogenic activity, and promote new bone formation and bone repair at bone defects. The PMZB scaffold can be used as a bone graft material to repair bone defect at non-weight-bearing sites.
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Affiliation(s)
- Rui Ma
- Department of Bone and Joint Surgery, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, 710004, People’s Republic of China
| | - Yanwen Su
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, 710049, People’s Republic of China
- National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Additive Manufacturing Medical Devices, Xi’an Jiaotong University, Xi’an, 710049, People’s Republic of China
| | - Ruomu Cao
- Department of Bone and Joint Surgery, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, 710004, People’s Republic of China
| | - Kunzheng Wang
- Department of Bone and Joint Surgery, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, 710004, People’s Republic of China
| | - Pei Yang
- Department of Bone and Joint Surgery, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, 710004, People’s Republic of China
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Villela Zumaya AL, Mincheva R, Raquez JM, Hassouna F. Nanocluster-Based Drug Delivery and Theranostic Systems: Towards Cancer Therapy. Polymers (Basel) 2022; 14:1188. [PMID: 35335518 PMCID: PMC8955999 DOI: 10.3390/polym14061188] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/12/2022] Open
Abstract
Over the last decades, the global life expectancy of the population has increased, and so, consequently, has the risk of cancer development. Despite the improvement in cancer therapies (e.g., drug delivery systems (DDS) and theranostics), in many cases recurrence continues to be a challenging issue. In this matter, the development of nanotechnology has led to an array of possibilities for cancer treatment. One of the most promising therapies focuses on the assembly of hierarchical structures in the form of nanoclusters, as this approach involves preparing individual building blocks while avoiding handling toxic chemicals in the presence of biomolecules. This review aims at presenting an overview of the major advances made in developing nanoclusters based on polymeric nanoparticles (PNPs) and/or inorganic NPs. The preparation methods and the features of the NPs used in the construction of the nanoclusters were described. Afterwards, the design, fabrication and properties of the two main classes of nanoclusters, namely noble-metal nanoclusters and hybrid (i.e., hetero) nanoclusters and their mode of action in cancer therapy, were summarized.
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Affiliation(s)
- Alma Lucia Villela Zumaya
- Faculty of Chemical Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic;
| | - Rosica Mincheva
- Laboratory of Polymeric and Composite Materials, University of Mons (UMONS), Place du Parc 20, 7000 Mons, Belgium; (R.M.); (J.-M.R.)
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials, University of Mons (UMONS), Place du Parc 20, 7000 Mons, Belgium; (R.M.); (J.-M.R.)
| | - Fatima Hassouna
- Faculty of Chemical Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic;
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Kargozar S, Montazerian M, Hamzehlou S, Kim HW, Baino F. Mesoporous bioactive glasses: Promising platforms for antibacterial strategies. Acta Biomater 2018; 81:1-19. [PMID: 30273742 DOI: 10.1016/j.actbio.2018.09.052] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/18/2018] [Accepted: 09/27/2018] [Indexed: 12/12/2022]
Abstract
The control of bacterial infections is of particular importance in the field of tissue engineering. Recently, much attention has been addressed toward the use of mesoporous bioactive glasses (MBGs) for antibacterial strategies, primarily because of their capability of acting as carriers for the local release of antimicrobial agents. The incorporation of antibacterial metallic ions including silver (Ag+), zinc (Zn2+), copper (Cu+ and Cu2+), cerium (Ce3+ and Ce4+), and gallium (Ga3+) cations into the MBG structure and their controlled release is proposed as one of the most attractive strategies for inhibiting bacterial growth and reproduction. Moreover, the possibility of loading and delivering various antibacterial biomolecules (e.g., antibiotics) through the porous structure of MBGs makes them as ideal candidates for antibacterial applications. In this review, we aim to present a comprehensive evaluation of MBG potential regarding antibacterial activities. For this purpose, different types of antibacterial ion-doped and drug-loaded MBGs are introduced and discussed in the light of existing knowledge, along with the significant challenges ahead. STATEMENT OF SIGNIFICANCE: Prevention and treatment of infections is one of the today's greatest challenges in medical sciences, also considering the well-known issues related to increased bacterial resistance to antibiotics. The advent of mesoporous glasses led to the birth of a new class of multifunctional biomaterials acting as bioactive platforms for the local release of organic or inorganic agents eliciting an antimicrobial effect. This reviews summarizes the state of the art of MBGs in this field, highlighting the latest evolutions and the specific role played by metallic antimicrobial ions that can be incorporated in the glass composition and then properly released. Perspective for tissue engineering applications are also discussed to provide an up-to-date contribution that is useful to both experienced scientists and early-stage researchers.
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Baino F, Hamzehlou S, Kargozar S. Bioactive Glasses: Where Are We and Where Are We Going? J Funct Biomater 2018; 9:E25. [PMID: 29562680 PMCID: PMC5872111 DOI: 10.3390/jfb9010025] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/11/2018] [Accepted: 03/16/2018] [Indexed: 12/31/2022] Open
Abstract
Bioactive glasses caused a revolution in healthcare and paved the way for modern biomaterial-driven regenerative medicine. The first 45S5 glass composition, invented by Larry Hench fifty years ago, was able to bond to living bone and to stimulate osteogenesis through the release of biologically-active ions. 45S5-based glass products have been successfully implanted in millions of patients worldwide, mainly to repair bone and dental defects and, over the years, many other bioactive glass compositions have been proposed for innovative biomedical applications, such as soft tissue repair and drug delivery. The full potential of bioactive glasses seems still yet to be fulfilled, and many of today's achievements were unthinkable when research began. As a result, the research involving bioactive glasses is highly stimulating and requires a cross-disciplinary collaboration among glass chemists, bioengineers, and clinicians. The present article provides a picture of the current clinical applications of bioactive glasses, and depicts six relevant challenges deserving to be tackled in the near future. We hope that this work can be useful to both early-stage researchers, who are moving with their first steps in the world of bioactive glasses, and experienced scientists, to stimulate discussion about future research and discover new applications for glass in medicine.
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Affiliation(s)
- Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Sepideh Hamzehlou
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, 14155-6447 Tehran, Iran.
- Medical Genetics Network (MeGeNe), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Saeid Kargozar
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, P.O. Box 917794-8564, Mashhad, Iran.
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Wang J, Du B, Fan Z, Li S, Yun P, Su F. Composites of poly(L
-lactide-trimethylene carbonate-glycolide) and surface modified SBA-15 as bone repair material. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jielin Wang
- Department of Materials Science; Fudan University; Shanghai 200433 China
- Institut Européen des Membranes, UMR CNRS 5635; Universite de Montpellier; 34095 Montpellier cedex 5 France
| | - Beibei Du
- Department of Materials Science; Fudan University; Shanghai 200433 China
| | - Zhongyong Fan
- Department of Materials Science; Fudan University; Shanghai 200433 China
| | - Suming Li
- Institut Européen des Membranes, UMR CNRS 5635; Universite de Montpellier; 34095 Montpellier cedex 5 France
| | - Peng Yun
- College of Chemical Engineering; Qingdao University of Science and Technology; Qingdao 266042 China
| | - Feng Su
- College of Chemical Engineering; Qingdao University of Science and Technology; Qingdao 266042 China
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Cheng T, Qu H, Zhang G, Zhang X. Osteogenic and antibacterial properties of vancomycin-laden mesoporous bioglass/PLGA composite scaffolds for bone regeneration in infected bone defects. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1935-1947. [PMID: 29113502 DOI: 10.1080/21691401.2017.1396997] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tao Cheng
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Haiyun Qu
- Analysis and Testing Center for Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Guoyou Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xianlong Zhang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Baino F, Fiorilli S, Vitale-Brovarone C. Composite Biomaterials Based on Sol-Gel Mesoporous Silicate Glasses: A Review. Bioengineering (Basel) 2017; 4:E15. [PMID: 28952496 PMCID: PMC5590434 DOI: 10.3390/bioengineering4010015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/17/2017] [Indexed: 12/28/2022] Open
Abstract
Bioactive glasses are able to bond to bone and stimulate the growth of new tissue while dissolving over time, which makes them ideal materials for regenerative medicine. The advent of mesoporous glasses, which are typically synthesized via sol-gel routes, allowed researchers to develop a broad and versatile class of novel biomaterials that combine superior bone regenerative potential (compared to traditional melt-derived glasses) with the ability of incorporating drugs and various biomolecules for targeted therapy in situ. Mesoporous glass particles can be directly embedded as a bioactive phase within a non-porous (e.g., microspheres), porous (3D scaffolds) or injectable matrix, or be processed to manufacture a surface coating on inorganic or organic (macro)porous substrates, thereby obtaining hierarchical structures with multiscale porosity. This review provides a picture of composite systems and coatings based on mesoporous glasses and highlights the challenges for the future, including the great potential of inorganic-organic hybrid sol-gel biomaterials.
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Affiliation(s)
- Francesco Baino
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy.
| | - Sonia Fiorilli
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy.
| | - Chiara Vitale-Brovarone
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
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8
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Shadjou N, Hasanzadeh M. Silica-based mesoporous nanobiomaterials as promoter of bone regeneration process. J Biomed Mater Res A 2015; 103:3703-16. [PMID: 26011776 DOI: 10.1002/jbm.a.35504] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 11/11/2022]
Abstract
Silica-based mesostructured nanomaterials have emerged as a full family of biomaterials with tremendous potential to address the requirements for the bone regeneration process. This review focuses on more recent advances in bone regeneration process based on silica-based mesoporous biomaterials during 2012 to January 2015. In this review, we describe application of silica-based mesoporous mesostructured nanomaterials (possessing pore sizes in the range 2-50 nm) for the bone regeneration process. We summarize the preparation methods, the effect of mesopore templates and composition on the mesopore-structure characteristics, and different forms of these materials, including particles, fibers, spheres, scaffolds, and composites. The effect of structural and textural properties of mesoporous materials on the development of new biomaterials for treatment of different bone pathologies such as infection, osteoporosis, cancer, and so forth is discussed. In addition, silica-based mesoporous bioactive glass, as a potential drug/growth factor carrier, is reviewed, which includes the composition-structure-drug delivery relationship and the functional effect on the antibacteria and tissue-stimulation properties. Also, application of different mesoporous materials on construction of 3D macroporous scaffolds for bone tissue engineering was disused. Finally, this review discusses the possibility of covalently grafting different osteoinductive agents to the silica-based mesoporous scaffold surface that act as attracting signals for bone cells to promote the bone regeneration process.
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Affiliation(s)
- Nasrin Shadjou
- Department of Nanochemistry, Nano Technology Research Center, Urmia University, Urmia, Iran.,Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, 51664, Iran
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9
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Kaur G, Pickrell G, Sriranganathan N, Kumar V, Homa D. Review and the state of the art: Sol-gel and melt quenched bioactive glasses for tissue engineering. J Biomed Mater Res B Appl Biomater 2015; 104:1248-75. [PMID: 26060931 DOI: 10.1002/jbm.b.33443] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/19/2015] [Accepted: 04/14/2015] [Indexed: 01/26/2023]
Abstract
Biomaterial development is currently the most active research area in the field of biomedical engineering. The bioglasses possess immense potential for being the ideal biomaterials due to their high adaptiveness to the biological environment as well as tunable properties. Bioglasses like 45S5 has shown great clinical success over the past 10 years. The bioglasses like 45S5 were prepared using melt-quenching techniques but recently porous bioactive glasses have been derived through sol-gel process. The synthesis route exhibits marked effect on the specific surface area, as well as degradability of the material. This article is an attempt to provide state of the art of the sol-gel and melt quenched bioactive bioglasses for tissue regeneration. Fabrication routes for bioglasses suitable for bone tissue engineering are highlighted and the effect of these fabrication techniques on the porosity, pore-volume, mechanical properties, cytocompatibilty and especially apatite layer formation on the surface of bioglasses is analyzed in detail. Drug delivery capability of bioglasses is addressed shortly along with the bioactivity of mesoporous glasses. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1248-1275, 2016.
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Affiliation(s)
- Gurbinder Kaur
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA.,School of Physics & Materials Science, Thapar University, Patiala, 147004, India
| | - Gary Pickrell
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
| | - Nammalwar Sriranganathan
- Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
| | - Vishal Kumar
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA.,Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, India
| | - Daniel Homa
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
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Zhou P, Cheng X, Xia Y, Wang P, Zou K, Xu S, Du J. Organic/inorganic composite membranes based on poly(L-lactic-co-glycolic acid) and mesoporous silica for effective bone tissue engineering. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20895-20903. [PMID: 25394879 DOI: 10.1021/am505493j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fabrication of membranes with excellent biocompatibility and bioactivity remains an important technical challenge in bone tissue engineering. In this paper, poly(l-lactic-co-glycolic acid) (PLGA)-SBA15 (Santa Barbara Amorphous 15) composite membranes were prepared by using an electrospinning technique; PLGA was used as a biocompatible and biodegradable polymer and SBA15 was used as a mesoporous silica. The PLGA-SBA15 composite membrane facilitates the cell attachment and the cell proliferation versus pure PLGA membrane where human bone marrow-derived mesenchymal stem cells (hMSCs) were seeded. Furthermore, the analysis of alkaline phosphatase (ALP) activity indicated that this PLGA-SBA15 composite membrane has better osteogenic induction compared with the pure PLGA membrane. Moreover, the presence of SBA15 increased the loading efficiency of the recombinant human bone morphogenetic protein-2 (rhBMP-2) to the membranes. Furthermore, the composite membrane had optimized sustained release of rhBMP-2. Overall, this PLGA-SBA15 composite is an excellent material for bone tissue engineering.
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Affiliation(s)
- Panyu Zhou
- Department of Emergency, Changhai Hospital, the Second Military Medical University , 168 Changhai Road, Shanghai 200433, China
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Mesoporous bioactive glass doped-poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) composite scaffolds with 3-dimensionally hierarchical pore networks for bone regeneration. Colloids Surf B Biointerfaces 2014; 116:72-80. [DOI: 10.1016/j.colsurfb.2013.12.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 12/20/2013] [Accepted: 12/21/2013] [Indexed: 11/22/2022]
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12
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Zhang J, Qu FY, Lin HM, Wu X, Jiang JJ. Mesoporous bioactive glass: ideal material for higher uptake and well sustained release of ibuprofen. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/1433075x11y.0000000044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- J Zhang
- Key Laboratory of Semiconductor Nanocomposite MaterialsMinistry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, P.R, China
| | - F Y Qu
- Key Laboratory of Semiconductor Nanocomposite MaterialsMinistry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, P.R, China
| | - H M Lin
- Key Laboratory of Semiconductor Nanocomposite MaterialsMinistry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, P.R, China
| | - X Wu
- Key Laboratory of Semiconductor Nanocomposite MaterialsMinistry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, P.R, China
| | - J J Jiang
- Key Laboratory of Semiconductor Nanocomposite MaterialsMinistry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, P.R, China
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Mesoporous bioactive glasses as drug delivery and bone tissue regeneration platforms. Ther Deliv 2012; 2:1189-98. [PMID: 22833912 DOI: 10.4155/tde.11.84] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of mesoporous bioactive glasses (MBG) for drug delivery and bone tissue regeneration has grown significantly over the past 5 years. In this article, we highlight recent advances made in the preparation of MBG particles, spheres, fibers and scaffolds. The advantages of MBG for drug delivery and bone scaffold applications are related to this material's well-ordered mesopore channel structure, superior bioactivity and its capability to deliver both hydrophilic and hydrophobic drugs. A brief forward-looking perspective on the potential clinical applications of MBG in regenerative medicine is also discussed.
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Wu C, Chang J. Mesoporous bioactive glasses: structure characteristics, drug/growth factor delivery and bone regeneration application. Interface Focus 2012; 2:292-306. [PMID: 23741607 DOI: 10.1098/rsfs.2011.0121] [Citation(s) in RCA: 160] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 02/27/2012] [Indexed: 11/12/2022] Open
Abstract
The impact of bone diseases and trauma in the whole world has increased significantly in the past decades. Bioactive glasses are regarded as an important bone regeneration material owing to their generally excellent osteoconductivity and osteostimulativity. A new class of bioactive glass, referred to as mesoporous bioglass (MBG), was developed 7 years ago, which possess a highly ordered mesoporous channel structure and a highly specific surface area. The study of MBG for drug/growth factor delivery and bone tissue engineering has grown significantly in the past several years. In this article, we review the recent advances of MBG materials, including the preparation of different forms of MBG, composition-structure relationship, efficient drug/growth factor delivery and bone tissue engineering application. By summarizing our recent research, the interaction of MBG scaffolds with bone-forming cells, the effect of drug/growth factor delivery on proliferation and differentiation of tissue cells and the in vivo osteogenesis of MBG scaffolds are highlighted. The advantages and limitations of MBG for drug delivery and bone tissue engineering have been compared with microsize bioactive glasses and nanosize bioactive glasses. The future perspective of MBG is discussed for bone regeneration application by combining drug delivery with bone tissue engineering and investigating the in vivo osteogenesis mechanism in large animal models.
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Affiliation(s)
- Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050 , People's Republic of China
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Wang X, Li X, Ito A, Sogo Y. Synthesis and characterization of hierarchically macroporous and mesoporous CaO-MO-SiO(2)-P(2)O(5) (M=Mg, Zn, Sr) bioactive glass scaffolds. Acta Biomater 2011; 7:3638-44. [PMID: 21742065 DOI: 10.1016/j.actbio.2011.06.029] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 05/27/2011] [Accepted: 06/21/2011] [Indexed: 11/16/2022]
Abstract
Mg-, Zn- and Sr-doped hierarchically macroporous and mesoporous CaO-MO-SiO(2)-P(2)O(5) (M=Mg, Zn or Sr) bioactive glass (HMMBG) scaffolds were synthesized using the non-ionic block copolymer EO(20)PO(70)EO(20) and polyurethane sponges as cotemplates. The Mg-, Zn- or Sr-doped HMMBG scaffolds showed no distinct difference in phase composition, macroporous structure or pore volume from the HMMBG scaffolds without Mg, Zn or Sr. The Mg-, Zn- and Sr-doped HMMBG scaffolds showed no cytotoxicity. The gradual release of Ca, P, Si, Mg, Zn and Sr into the culture medium from these scaffolds contributed to the enhancement of the proliferation and ALP activity of mesenchymal stem cells (MSCs). The Mg-, Zn- and Sr-doped HMMBG scaffolds may be used as bone substitute materials.
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Affiliation(s)
- Xiupeng Wang
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
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Osaki S, Chen M, Zamora PO. Controlled drug release through a plasma polymerized tetramethylcyclo-tetrasiloxane coating barrier. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2011; 23:483-96. [PMID: 21294969 DOI: 10.1163/092050610x552753] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A plasma polymerized tetramethylcyclo-tetrasiloxane (TMCTS) coating was deposited onto a metallic biomaterial, 316 stainless steel, to control the release rate of drugs, including daunomycin, rapamycin and NPC-15199 (N-(9-fluorenylmethoxy-carbonyl)-leucine), from the substrate surface. The plasma-state polymerized TMCTS thin film was deposited in a vacuum plasma reactor operated at a radio-frequency of 13.56 MHz, and was highly adhesive to the stainless steel, providing a smooth and hard coating layer for drugs coated on the substrate. To investigate the influence of plasma coating thickness on the drug diffusion profile, coatings were deposited at various time lengths from 20 s to 6 min, depending on the type of drug. Atomic force spectroscopy (AFM) was utilized to characterize coating thickness. Drug elution was measured using a spectrophotometer or high-performance liquid chromatography (HPLC) system. The experimental results indicate that plasma polymerized TMCTS can be used as an over-coating to control drug elution at the desired release rate. The drug-release rate was also found to be dependent on the molecular weight of the drug with plasma coating barrier on top of it. The in vitro cytotoxicity test result suggested that the TMCTS plasma coatings did not produce a cytotoxic response to mammalian cells. The non-cytotoxicity of TMCTS coating plus its high thrombo-resistance and biocompatibility are very beneficial to drug-eluting devices that contact blood.
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Affiliation(s)
- Shigemasa Osaki
- BioSurface Engineering Technologies (BioSET), Inc., 9430 Key West Avenue, Rockville, MD 20850, USA
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Santos H, Salonen J, Bimbo L, Lehto VP, Peltonen L, Hirvonen J. Mesoporous materials as controlled drug delivery formulations. J Drug Deliv Sci Technol 2011. [DOI: 10.1016/s1773-2247(11)50016-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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López-Noriega A, Arcos D, Vallet-Regí M. Functionalizing Mesoporous Bioglasses for Long-Term Anti-Osteoporotic Drug Delivery. Chemistry 2010; 16:10879-86. [PMID: 20661959 DOI: 10.1002/chem.201000137] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Adolfo López-Noriega
- Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, Pza Ramón y Cajal s/n, 28040 Madrid, Spain
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Abstract
Mesoporous materials synthesized using a polymer templating route have attracted considerable attention in the field of bone tissue regeneration because their unique pore textural properties (high specific surface area, pore volume and controllable mesopore structure) can promote rapid bone formation. In addition, their potential use as a drug delivery system has been highlighted. The scaffolds in bone tissue regeneration should contain 3D interconnected pores ranging in size from 10 to 1000 μm for successful cell migration, nutrient delivery, bone in-growth and vascularization. Meso-sized pores are too small to carry out these roles, even though mesoporous materials have attractive functionalities for bone tissue regeneration. Therefore, a technique linking mesoporous materials with the general scaffolds is required. This paper reviews recent studies relating the development of new porous scaffolds containing mesopores for using in bone tissue regeneration. All the suggested methods, such as a combination of polymer templating methods and rapid prototyping technique can provide hierarchically 3D porous bioactive scaffolds with well interconnected pore structures in the nano to macro size range, good molding capability, biocompatibility, and bioactivity. The new fabrication techniques suggested can potentially be used to design ideal scaffolds in bone tissue regeneration.
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