1
|
Cui Y, Hong S, Jiang W, Li X, Zhou X, He X, Liu J, Lin K, Mao L. Engineering mesoporous bioactive glasses for emerging stimuli-responsive drug delivery and theranostic applications. Bioact Mater 2024; 34:436-462. [PMID: 38282967 PMCID: PMC10821497 DOI: 10.1016/j.bioactmat.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/17/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
Mesoporous bioactive glasses (MBGs), which belong to the category of modern porous nanomaterials, have garnered significant attention due to their impressive biological activities, appealing physicochemical properties, and desirable morphological features. They hold immense potential for utilization in diverse fields, including adsorption, separation, catalysis, bioengineering, and medicine. Despite possessing interior porous structures, excellent morphological characteristics, and superior biocompatibility, primitive MBGs face challenges related to weak encapsulation efficiency, drug loading, and mechanical strength when applied in biomedical fields. It is important to note that the advantageous attributes of MBGs can be effectively preserved by incorporating supramolecular assemblies, miscellaneous metal species, and their conjugates into the material surfaces or intrinsic mesoporous networks. The innovative advancements in these modified colloidal inorganic nanocarriers inspire researchers to explore novel applications, such as stimuli-responsive drug delivery, with exceptional in-vivo performances. In view of the above, we outline the fabrication process of calcium-silicon-phosphorus based MBGs, followed by discussions on their significant progress in various engineered strategies involving surface functionalization, nanostructures, and network modification. Furthermore, we emphasize the recent advancements in the textural and physicochemical properties of MBGs, along with their theranostic potentials in multiple cancerous and non-cancerous diseases. Lastly, we recapitulate compelling viewpoints, with specific considerations given from bench to bedside.
Collapse
Affiliation(s)
| | | | | | - Xiaojing Li
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Xingyu Zhou
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Xiaoya He
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Jiaqiang Liu
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Kaili Lin
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Lixia Mao
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| |
Collapse
|
2
|
Azadani RN, Karbasi S, Poursamar A. Chitosan/MWCNTs nanocomposite coating on 3D printed scaffold of poly 3-hydroxybutyrate/magnetic mesoporous bioactive glass: A new approach for bone regeneration. Int J Biol Macromol 2024; 260:129407. [PMID: 38224805 DOI: 10.1016/j.ijbiomac.2024.129407] [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: 11/08/2023] [Revised: 12/20/2023] [Accepted: 01/09/2024] [Indexed: 01/17/2024]
Abstract
The utilization of 3D printing has become increasingly common in the construction of composite scaffolds. In this study, magnetic mesoporous bioactive glass (MMBG) was incorporated into polyhydroxybutyrate (PHB) to construct extrusion-based 3D printed scaffold. After fabrication of the PHB/MMBG composite scaffolds, they were coated with chitosan (Cs) and chitosan/multi-walled carbon nanotubes (Cs/MWCNTs) solutions utilizing deep coating method. FTIR was conducted to confirm the presence of Cs and MWCNTs on the scaffolds' surface. The findings of mechanical analysis illustrated that presence of Cs/MWCNTs on the composite scaffolds increases compressive young modulus significantly, from 16.5 to 42.2 MPa. According to hydrophilicity evaluation, not only MMBG led to decrease the contact angle of pure PHB but also scaffolds surface modification utilization of Cs and MWCNTs, the contact angle decreased significantly from 82.34° to 54.15°. Furthermore, investigation of cell viability, cell metabolism and inflammatory cytokines such as interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) and interleukin-10 (IL-10) and transforming growth factor-beta (TGF-β) proved that the scaffolds not only do not stimulate the immune system, but also polarize macrophage cells from M1 phase to M2 phase. The present study highlights the suitability of 3D printed scaffold PHB/MMBG with Cs/MWCNTs coating for bone tissue engineering.
Collapse
Affiliation(s)
- Reyhaneh Nasr Azadani
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Ali Poursamar
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
3
|
Vishwakarma A, Sinha N. Additive Manufacturing of Iron Carbide Incorporated Bioactive Glass Scaffolds for Bone Tissue Engineering and Drug Delivery Applications. ACS APPLIED BIO MATERIALS 2024; 7:892-908. [PMID: 38253516 DOI: 10.1021/acsabm.3c00931] [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] [Indexed: 01/24/2024]
Abstract
In this study, we have synthesized a bioactive glass with composition 45SiO2-20Na2O-23CaO-6P2O5-2.5B2O3-1ZnO-2MgO-0.5CaF2 (wt %). Further, it has been incorporated with 0.4 wt % iron carbide nanoparticles to prepare magnetic bioactive glass (MBG) with good heat generation capability for potential applications in magnetic field-assisted hyperthermia. The MBG scaffolds have been fabricated using extrusion-based additive manufacturing by mixing MBG powder with 25% Pluronic F-127 solution as the binder. The saturation magnetization of iron carbide nanoparticles in the bioactive glass matrix has been found to be 80 emu/g. The morphological analysis (pore size distribution, porosity, open pore network modeling, tortuosity, and pore interconnectivity) was done using an in-house developed methodology that revealed the suitability of the scaffolds for bone tissue engineering. The compressive strength (14.3 ± 1.6 MPa) of the MBG scaffold was within the range of trabecular bone. The in vitro test using simulated body fluid (SBF) showed the formation of apatite indicating the bioactive nature of scaffolds. Further, the drug delivery behaviors of uncoated and polycaprolactone (PCL) coated MBG scaffolds have been evaluated by loading an anticancer drug (Mitomycin C) onto the scaffolds. While the uncoated scaffold demonstrated the drug's burst release for the initial 80 h, the PCL-coated scaffold showed the gradual release of the drug. These results demonstrate the potential of the proposed MBG for bone tissue engineering and drug delivery applications.
Collapse
Affiliation(s)
- Ashok Vishwakarma
- Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Niraj Sinha
- Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| |
Collapse
|
4
|
Toloue EB, Mohammadalipour M, Mukherjee S, Karbasi S. Ultra-thin electrospun nanocomposite scaffold of poly (3-hydroxybutyrate)-chitosan/magnetic mesoporous bioactive glasses for bone tissue engineering applications. Int J Biol Macromol 2024; 254:127860. [PMID: 37939755 DOI: 10.1016/j.ijbiomac.2023.127860] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
Bioglass is widely used in skeletal tissue engineering due to its outstanding bioactive properties. In the present study, magnetic mesoporous bioglass (MMBG) synthesized through the sol-gel method was incorporated into poly(3-hydroxybutyrate)-chitosan (PHB-Cs) solution and the resulting electrospun nanocomposite scaffolds were investigated and compared with MMBG free scaffold. The addition of 10 wt% MMBG has an outstanding effect on producing ultra-thin electrospun nanocomposite fibers due to its magnetic content (diameter of ≃128 nm). This improvement led to better mechanical properties, including an increase in both tensile modulus (up to ≃229 MPa) and tensile strength (to ≃4.95 MPa). Although the inclusion of MMBG slightly decreased the surface roughness of the nanofibrous scaffold (RMS from ≃197 to 154 nm), it could improve the wettability (WCA from ≃54 to 44°). This achievement has the potential to bring an enhancement in biomineralization and biological response. These outputs, combined with the observed increase in human osteoblast MG-63 cell viability (≃53 % improvement) as measured by MTT assay, DAPI, and SEM indicate prefer cell behavior of this nanocomposite structure. Additionally, the qualitative improvement in Alizarin Red staining and the quantitative enhancement of ALP secretion, serve as further evidence of the PHB-Cs/MMBG ultrathin nanofibers potential in bone tissue engineering.
Collapse
Affiliation(s)
- Elahe Bahremandi Toloue
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Australia; Department of Obstetrics and Gynecology, Monash University, Clayton, Australia
| | - Mohammad Mohammadalipour
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Shayanti Mukherjee
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Australia; Department of Obstetrics and Gynecology, Monash University, Clayton, Australia
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| |
Collapse
|
5
|
Huang C, Yu M, Li H, Wan X, Ding Z, Zeng W, Zhou Z. Research Progress of Bioactive Glass and Its Application in Orthopedics. ADVANCED MATERIALS INTERFACES 2021. [DOI: 10.1002/admi.202100606] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Chao Huang
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| | - Min Yu
- Department of Anesthesiology North‐Kuanren General Hospital No. 69 Xingguang Avenue, Yubei District Chongqing 401121 P. R. China
| | - Hao Li
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| | - Xufeng Wan
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| | - Zichuan Ding
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| | - Weinan Zeng
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| | - Zongke Zhou
- Department of Orthopaedics West China Hospital of Sichuan University No. 37 Guoxue Alley, Wuhou District Chengdu 610041 P. R. China
| |
Collapse
|
6
|
Sabouri Z, Labbaf S, Karimzadeh F, Baharlou-Houreh A, McFarlane TV, Esfahani MHN. Fe3O4/bioactive glass nanostructure: a promising therapeutic platform for osteosarcoma treatment. Biomed Mater 2021; 16. [DOI: 10.1088/1748-605x/aba7d5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/21/2020] [Indexed: 01/28/2023]
|
7
|
Galarraga-Vinueza ME, Mesquita-Guimarães J, Magini RS, Souza JCM, Fredel MC, Boccaccini AR. Mesoporous bioactive glass embedding propolis and cranberry antibiofilm compounds. J Biomed Mater Res A 2018; 106:1614-1625. [DOI: 10.1002/jbm.a.36352] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/10/2017] [Accepted: 01/19/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Maria Elisa Galarraga-Vinueza
- Department of Dentistry (ODT), Center for Education and Research on Dental Implants (CEPID), Post-Graduation Program in Dentistry (PPGO); Federal University of Santa Catarina (UFSC); Florianopolis Santa Catarina 88040-900 Brazil
| | - Joana Mesquita-Guimarães
- Department of Mechanical Engineering (EMC); Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina; Florianopolis Santa Catarina 88040-900 Brazil
| | - Ricardo S. Magini
- Department of Dentistry (ODT), Center for Education and Research on Dental Implants (CEPID), Post-Graduation Program in Dentistry (PPGO); Federal University of Santa Catarina (UFSC); Florianopolis Santa Catarina 88040-900 Brazil
| | - Júlio C. M. Souza
- Department of Dentistry (ODT), Center for Education and Research on Dental Implants (CEPID), Post-Graduation Program in Dentistry (PPGO); Federal University of Santa Catarina (UFSC); Florianopolis Santa Catarina 88040-900 Brazil
- Department of Mechanical Engineering (EMC); Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina; Florianopolis Santa Catarina 88040-900 Brazil
| | - Marcio C. Fredel
- Department of Mechanical Engineering (EMC); Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina; Florianopolis Santa Catarina 88040-900 Brazil
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg; 91058 Erlangen Germany
| |
Collapse
|
8
|
ORTOLANI ALESSANDRO, BIANCHI MICHELE, MOSCA MASSIMILIANO, CARAVELLI SILVIO, FUIANO MARIO, MARCACCI MAURILIO, RUSSO ALESSANDRO. The prospective opportunities offered by magnetic scaffolds for bone tissue engineering: a review. JOINTS 2016; 4:228-235. [PMID: 28217659 PMCID: PMC5297347 DOI: 10.11138/jts/2016.4.4.228] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Magnetic scaffolds are becoming increasingly attractive in tissue engineering, due to their ability to enhance bone tissue formation by attracting soluble factors, such as growth factors, hormones and polypeptides, directly to the implantation site, as well as their potential to improve the fixation and stability of the implant. Moreover, there is increasing evidence that the synergistic effects of magnetic scaffolds and magnetic fields can promote bone repair and regeneration. In this manuscript we review the recent innovations in bone tissue engineering that exploit magnetic biomaterials combined with static magnetic fields to enhance bone cell adhesion and proliferation, and thus bone tissue growth.
Collapse
Affiliation(s)
- ALESSANDRO ORTOLANI
- Laboratory of Nano Biotechnology (NaBi), Istituto Ortopedico Rizzoli, Bologna, Italy
| | - MICHELE BIANCHI
- Laboratory of Nano Biotechnology (NaBi), Istituto Ortopedico Rizzoli, Bologna, Italy
| | - MASSIMILIANO MOSCA
- I Orthopaedic and Traumatological Clinic, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - SILVIO CARAVELLI
- I Orthopaedic and Traumatological Clinic, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - MARIO FUIANO
- I Orthopaedic and Traumatological Clinic, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - MAURILIO MARCACCI
- Laboratory of Nano Biotechnology (NaBi), Istituto Ortopedico Rizzoli, Bologna, Italy
- I Orthopaedic and Traumatological Clinic, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - ALESSANDRO RUSSO
- Laboratory of Nano Biotechnology (NaBi), Istituto Ortopedico Rizzoli, Bologna, Italy
- I Orthopaedic and Traumatological Clinic, Istituto Ortopedico Rizzoli, Bologna, Italy
| |
Collapse
|
9
|
Santos LJ, Reis RL, Gomes ME. Harnessing magnetic-mechano actuation in regenerative medicine and tissue engineering. Trends Biotechnol 2015; 33:471-9. [DOI: 10.1016/j.tibtech.2015.06.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/20/2015] [Accepted: 06/01/2015] [Indexed: 01/09/2023]
|
10
|
Joshi S, Shrestha LK, Kamachi Y, Malgras V, Pradhananga MA, Pokhrel BP, Nakato T, Pradhananga RR, Ariga K, Yamauchi Y. Synthesis and characterizations of nanoporous carbon derived from Lapsi (Choerospondias axillaris) seed: Effect of carbonization conditions. ADV POWDER TECHNOL 2015. [DOI: 10.1016/j.apt.2015.03.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
11
|
Bian C, Lin H, Zhang F, Ma J, Li F, Wu X, Qu F. Synthesis of magnetic, macro/mesoporous bioactive glasses based on coral skeleton for bone tissue engineering. IET Nanobiotechnol 2014; 8:275-81. [DOI: 10.1049/iet-nbt.2013.0056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Chunhui Bian
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Huiming Lin
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Feng Zhang
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Jie Ma
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Fengxiao Li
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Xiaodan Wu
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| | - Fengyu Qu
- Department of Photoelectric Band Gap Materials Key Laboratory of Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People's Republic of China
| |
Collapse
|
12
|
Han X, Wang D, Chen X, Lin H, Qu F. One-pot synthesis of macro-mesoporous bioactive glasses/polylactic acid for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:367-74. [DOI: 10.1016/j.msec.2014.07.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/07/2014] [Accepted: 07/11/2014] [Indexed: 12/30/2022]
|
13
|
Drug delivery property, bactericidal property and cytocompatibility of magnetic mesoporous bioactive glass. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:196-205. [DOI: 10.1016/j.msec.2014.04.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 04/11/2014] [Accepted: 04/18/2014] [Indexed: 01/01/2023]
|
14
|
Hierarchical porous bioactive glasses/PLGA-magnetic SBA-15 for dual-drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:21-8. [DOI: 10.1016/j.msec.2014.01.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 12/25/2013] [Accepted: 01/30/2014] [Indexed: 11/21/2022]
|
15
|
Three-dimensional printing of strontium-containing mesoporous bioactive glass scaffolds for bone regeneration. Acta Biomater 2014; 10:2269-81. [PMID: 24412143 DOI: 10.1016/j.actbio.2014.01.001] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/26/2013] [Accepted: 01/02/2014] [Indexed: 12/24/2022]
Abstract
In this study, we fabricated strontium-containing mesoporous bioactive glass (Sr-MBG) scaffolds with controlled architecture and enhanced mechanical strength using a three-dimensional (3-D) printing technique. The study showed that Sr-MBG scaffolds had uniform interconnected macropores and high porosity, and their compressive strength was ∼170 times that of polyurethane foam templated MBG scaffolds. The physicochemical and biological properties of Sr-MBG scaffolds were evaluated by ion dissolution, apatite-forming ability and proliferation, alkaline phosphatase activity, osteogenic expression and extracelluar matrix mineralization of osteoblast-like cells MC3T3-E1. The results showed that Sr-MBG scaffolds exhibited a slower ion dissolution rate and more significant potential to stabilize the pH environment with increasing Sr substitution. Importantly, Sr-MBG scaffolds possessed good apatite-forming ability, and stimulated osteoblast cells' proliferation and differentiation. Using dexamethasone as a model drug, Sr-MBG scaffolds also showed a sustained drug delivery property for use in local drug delivery therapy, due to their mesoporous structure. Therefore, the 3-D printed Sr-MBG scaffolds combined the advantages of Sr-MBG such as good bone-forming bioactivity, controlled ion release and drug delivery and enhanced mechanical strength, and had potential application in bone regeneration.
Collapse
|