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Cao B, Xie L, Xu Y, Shen J, Zhang Y, Wang Y, Weng X, Bao Z, Yang X, Gou Z, Wang C. Dual-core-component multiphasic bioceramic granules with selective-area porous structures facilitating bone tissue regeneration and repair. RSC Adv 2024; 14:10526-10537. [PMID: 38567335 PMCID: PMC10985589 DOI: 10.1039/d4ra00911h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
Ca-phosphate/-silicate ceramic granules have been widely studied because their biodegradable fillers can enhance bone defect repair accompanied with bioactive ion release and material degradation; however, it is a challenge to endow bioceramic composites with time-dependent ion release and highly efficient osteogenesis in vivo. Herein, we prepared dual-core-type bioceramic granules with varying chemical compositions beneficial for controlling ion release and stimulating osteogenic capability. Core-shell-structured bioceramic granules (P8-Sr4@Zn3, P8-Sr4@TCP, and P8-Sr4@HAR) composed of 8% P- and 4% Sr-substituting wollastonite (P8, Sr4) dual core components and different shell components, such as 3% Zn-substituting wollastonite (Zn3), β-tricalcium phosphate (β-TCP), and hardystonite (HAR), were prepared by cutting extruded core-shell fibers through dual-core ternary nozzles, followed by high-temperature sintering post-treatment. The experimental results showed that nonstoichiometric wollastonite core components contributed to more biologically active ion release in Tris buffer in vitro, and the sparingly dissolvable shell component readily maintained the granule morphology in vivo; thus, such bioceramic implants can adjust new bone growth and material degradation over time. In particular, bioceramic granules encapsulated by the TCP shell exhibited the most appreciable osteogenic capacity and expected biodegradation, which was mostly favorable for bone repair in critical bone defects. It is reasonable to consider that this new multiphasic bioceramic granule design is versatile for developing next-generation implants for various bone damage repairs.
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Affiliation(s)
- Binji Cao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine #88 Jiefang Road Hangzhou 310009 Zhejiang Province China
| | - Lijun Xie
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine #88 Jiefang Road Hangzhou 310009 Zhejiang Province China
| | - Yan Xu
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University Hangzhou 310058 China (+86) 571-8697 1539 (+86) 571-8820 8353
| | - Jian Shen
- Department of Emergency Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine and Institute of Emergency Medicine #88 Jiefang Road Hangzhou 310009 Zhejiang Province China
| | - Yan Zhang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University Hangzhou 310058 China (+86) 571-8697 1539 (+86) 571-8820 8353
| | - Yingjie Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College Beijing 100730 China
| | - Xisheng Weng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College Beijing 100730 China
| | - Zhaonan Bao
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University Hangzhou 310058 China (+86) 571-8697 1539 (+86) 571-8820 8353
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University Hangzhou 310058 China (+86) 571-8697 1539 (+86) 571-8820 8353
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University Hangzhou 310058 China (+86) 571-8697 1539 (+86) 571-8820 8353
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine #88 Jiefang Road Hangzhou 310009 Zhejiang Province China
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Xia Y, Zhang Z, Zhou K, Lin Z, Shu R, Xu Y, Zeng Z, Chang J, Xie Y. Cuprorivaite/hardystonite/alginate composite hydrogel with thermionic effect for the treatment of peri-implant lesion. Regen Biomater 2024; 11:rbae028. [PMID: 38605852 PMCID: PMC11007117 DOI: 10.1093/rb/rbae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/24/2024] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Peri-implant lesion is a grave condition afflicting numerous indi-viduals with dental implants. It results from persistent periodontal bacteria accumulation causing inflammation around the implant site, which can primarily lead to implant loosening and ultimately the implant loss. Early-stage peri-implant lesions exhibit symptoms akin to gum disease, including swelling, redness and bleeding of the gums surrounding the implant. These signs indicate infection and inflammation of the peri-implant tissues, which may result in bone loss and implant failure. To address this problem, a thermionic strategy was applied by designing a cuprorivaite-hardystonite bioceramic/alginate composite hydrogel with photothermal and Cu/Zn/Si multiple ions releasing property. This innovative approach creates a thermionic effect by the release of bioactive ions (Cu2+ and Zn2+ and SiO 3 2 - ) from the composite hydrogel and the mild heat environment though the photothermal effect of the composite hydrogel induced by near-infrared light irradiation. The most distinctive advantage of this thermionic effect is to substantially eliminate periodontal pathogenic bacteria and inhibit inflammation, while simultaneously enhance peri-implant osseointegration. This unique attribute renders the use of this composite hydrogel highly effective in significantly improving the survival rate of implants after intervention in peri-implant lesions, which is a clinical challenge in periodontics. This study reveals application potential of a new biomaterial-based approach for peri-implant lesion, as it not only eliminates the infection and inflammation, but also enhances the osteointegration of the dental implant, which provides theoretical insights and practical guidance to prevent and manage early-stage peri-implant lesion using bioactive functional materials.
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Affiliation(s)
- Yiru Xia
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhaowenbin Zhang
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Kecong Zhou
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhikai Lin
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Rong Shu
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yuze Xu
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Zhen Zeng
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, China
| | - Jiang Chang
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Yufeng Xie
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
- Department of Periodontology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, China
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3
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Kitagawa H, Kohno T, Deng F, Abe GL, Sakai H, Fan YS, Wu T, Sasaki JI, Imazato S. Metal-doped silicate and phosphate glasses for antibacterial dental biomaterials. Biomater Investig Dent 2023; 10:2284372. [PMID: 38979099 PMCID: PMC11229677 DOI: 10.1080/26415275.2023.2284372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/10/2023] [Indexed: 07/10/2024] Open
Abstract
Owing to the development of glass 45S5 (Bioglass®) comprising 45 mol% SiO2, 24.5 mol% Na2O, 24.5 mol% CaO, and 6 mol% P2O5, different compositions of silicate glasses have been developed. When these silicate glasses contact an aqueous environment, such as body fluids, they induce apatite layer formation on their surfaces owing to ion exchange. In addition to promoting hard tissue formation, researchers have sought to enhance the antibacterial properties of these glasses, thereby resulting in the development of metal-doped silicate glasses. The addition of antibacterial metals (silver, copper, zinc, and gallium) to silicate glass offers a promising avenue for combating oral pathogens. In recent years, there has been growing interest in metal-doped phosphate glasses. The release of metal ions can be regulated by modifying the dissolution rate of the phosphate glasses. This review summarizes the metal-doped silicate and phosphate glasses that confer antibacterial activity. Future strategies for the development of dental biomaterials that incorporate metal-doped glass and exhibit antibacterial effects are discussed.
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Affiliation(s)
- Haruaki Kitagawa
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
- Joint Research Laboratory of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Tomoki Kohno
- Joint Research Laboratory of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Fan Deng
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Gabriela L Abe
- Joint Research Laboratory of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Hirohiko Sakai
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Yo-Shiuan Fan
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Tingyi Wu
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Jun-ichi Sasaki
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
| | - Satoshi Imazato
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
- Joint Research Laboratory of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, Japan
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4
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Restivo E, Pugliese D, Gallichi-Nottiani D, Sammartino JC, Bloise N, Peluso E, Percivalle E, Janner D, Milanese D, Visai L. Effect of Low Copper Doping on the Optical, Cytocompatible, Antibacterial, and SARS-CoV-2 Trapping Properties of Calcium Phosphate Glasses. ACS OMEGA 2023; 8:42264-42274. [PMID: 38024754 PMCID: PMC10652837 DOI: 10.1021/acsomega.3c04293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/04/2023] [Indexed: 12/01/2023]
Abstract
Calcium phosphate glasses (CPGs) are acquiring great importance in the biomedical field because of their thermomechanical and bioresorbable properties. In this study, optically transparent copper (1 mol %)-doped calcium phosphate glasses (CPGs_Cu) were prepared through the melt-quenching method, and their biocompatibility and antibacterial and antiviral properties were evaluated and compared with undoped CPGs. Biocompatibility was evaluated on murine fibroblast NIH-3T3 cells as a preliminary study of cytocompatibility. The in vitro tests were performed through indirect and direct cytotoxicity analyses by MTT and Alamar Blue assays and supported by electron microscopy observations. Microbiological analyses were performed against the most common Gram-negative and Gram-positive pathogens that cause nosocomial infections: Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, and the methicillin-resistant Staphylococcus aureus strain. In addition, the bioglass samples were exposed to SARS-CoV-2 to assess their effects on viral survival. The obtained results assessed the biocompatibility of both bioglass types and their ability to reduce the viral load and trap the virus. In addition, Cu2+-doped bioglass was found to be antibacterial despite its low content (1 mol %) of copper, making this a promising candidate material for biomedical applications, e.g., surgery probes, drug delivery, and photodynamic therapy.
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Affiliation(s)
- Elisa Restivo
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
| | - Diego Pugliese
- Department
of Applied Science and Technology, UdR INSTM, Politecnico di Torino, Torino10129,Italy
| | | | - José Camilla Sammartino
- Department
of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia27100,Italy
| | - Nora Bloise
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
- Medicina
Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia27100,Italy
| | - Emanuela Peluso
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
| | - Elena Percivalle
- Molecular
Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia27100,Italy
| | - Davide Janner
- Department
of Applied Science and Technology, UdR INSTM, Politecnico di Torino, Torino10129,Italy
| | - Daniel Milanese
- Department
of Engineering and Architecture, UdR INSTM, University of Parma, Parma43121,Italy
| | - Livia Visai
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
- Medicina
Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia27100,Italy
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5
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Baino F, Montazerian M, Verné E. Cobalt-Doped Bioactive Glasses for Biomedical Applications: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4994. [PMID: 37512268 PMCID: PMC10382018 DOI: 10.3390/ma16144994] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Improving angiogenesis is the key to the success of most regenerative medicine approaches. However, how and to which extent this may be performed is still a challenge. In this regard, cobalt (Co)-doped bioactive glasses show promise being able to combine the traditional bioactivity of these materials (especially bone-bonding and osteo-stimulatory properties) with the pro-angiogenic effect associated with the release of cobalt. Although the use and local delivery of Co2+ ions into the body have raised some concerns about the possible toxic effects on living cells and tissues, important biological improvements have been highlighted both in vitro and in vivo. This review aims at providing a comprehensive overview of Co-releasing glasses, which find biomedical applications as various products, including micro- and nanoparticles, composites in combination with biocompatible polymers, fibers and porous scaffolds. Therapeutic applications in the field of bone repair, wound healing and cancer treatment are discussed in the light of existing experimental evidence along with the open issues ahead.
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Affiliation(s)
- Francesco Baino
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
| | - Maziar Montazerian
- Northeastern Laboratory for Evaluation and Development of Biomaterial (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, State College, PA 16801, USA
| | - Enrica Verné
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
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6
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Tiama TM, Elhaes H, Ibrahim MA, Refaat A, El-Mansy MAM, Sabry NM. Molecular and biological activities of metal oxide-modified bioactive glass. Sci Rep 2023; 13:10637. [PMID: 37391463 PMCID: PMC10313761 DOI: 10.1038/s41598-023-37017-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/14/2023] [Indexed: 07/02/2023] Open
Abstract
Bioactive glass (BG) was prepared by sol-gel method following the composition 60-([Formula: see text]) SiO2.34CaO.6P2O5, where x = 10 (FeO, CuO, ZnO or GeO). Samples were then studied with FTIR. Biological activities of the studied samples were processed with antibacterial test. Model molecules for different glass compositions were built and calculated with density functional theory at B3LYP/6-31 g(d) level. Some important parameters such as total dipole moment (TDM), HOMO/LUMO band gap energy (ΔE), and molecular electrostatic potential beside infrared spectra were calculated. Modeling data indicated that P4O10 vibrational characteristics are enhanced by the addition of SiO2.CaO due to electron rush resonating along whole crystal. FTIR results confirmed that the addition of ZnO to P4O10.SiO2.CaO significantly impacted the vibrational characteristics, unlike the other alternatives CuO, FeO and GeO that caused a smaller change in spectral indexing. The obtained values of TDM and ΔE indicated that P4O10.SiO2.CaO doped with ZnO is the most reactive composition. All the prepared BG composites showed antibacterial activity against three different pathogenic bacterial strains, with ZnO-doped BG demonstrating the highest antibacterial activity, confirming the molecular modeling calculations.
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Affiliation(s)
- Taha M Tiama
- Department of Basic Sciences, October High Institute of Engineering & Technology-OHI, 6th of October City, Giza, Egypt
| | - Hanan Elhaes
- Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, 11757, Egypt
| | - Medhat A Ibrahim
- Molecular Spectroscopy and Modeling Unit, Spectroscopy Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt.
| | - Ahmed Refaat
- Molecular Spectroscopy and Modeling Unit, Spectroscopy Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
| | - Mohamed A M El-Mansy
- Molecular Modeling Simulation Lab, Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt
| | - Noha M Sabry
- Water Pollution Research Department, Environment and Climate Change Research Institute, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
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7
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Raja FNS, Worthington T, Martin RA. The antimicrobial efficacy of copper, cobalt, zinc and silver nanoparticles: alone and in combination. Biomed Mater 2023; 18. [PMID: 37158047 DOI: 10.1088/1748-605x/acd03f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/25/2023] [Indexed: 05/10/2023]
Abstract
With the advent of nanotechnology, there has been an extensive interest in the antimicrobial potential of metals. The rapid and widespread development of antimicrobial-resistant and multidrug-resistant bacteria has prompted recent research into developing novel or alternative antimicrobial agents. In this study, the antimicrobial efficacy of metallic copper, cobalt, silver and zinc nanoparticles was assessed againstEscherichia coli(NCTC 10538),S. aureus(ATCC 6538) along with three clinical isolates ofStaphylococcus epidermidis(A37, A57 and A91) and three clinical isolates ofE. coli(Strains 1, 2 and 3) recovered from bone marrow transplant patients and patients with cystitis respectively. Antimicrobial sensitivity assays, including agar diffusion and broth macro-dilution to determine minimum inhibitory and bactericidal concentrations (MIC/MBC) and time-kill/synergy assays, were used to assess the antimicrobial efficacy of the agents. The panel of test microorganisms, including antibiotic-resistant strains, demonstrated a broad range of sensitivity to the metals investigated. MICs of the type culture strains were in the range of 0.625-5.0 mg ml-1. While copper and cobalt exhibited no difference in sensitivity between Gram-positive and Gram-negative microorganisms, silver and zinc showed strain specificity. A significant decrease (p< 0.001) in the bacterial density ofE. coliandS. aureuswas demonstrated by silver, copper and zinc in as little as two hours. Furthermore, combining metal nanoparticles reduced the time required to achieve a complete kill.
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Affiliation(s)
- Farah N S Raja
- College of Health and Life Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, United Kingdom
| | - Tony Worthington
- College of Health and Life Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, United Kingdom
| | - Richard A Martin
- College of Engineering and Physical Sciences, and Aston Advanced Materials Research Centre, Aston University, Aston Triangle, Birmingham B4 7ET, United Kingdom
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8
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Bao Z, Yang J, Shen J, Wang C, Li Y, Zhang Y, Yang G, Zhong C, Xu S, Xie L, Shen M, Gou Z. Core-shell bioceramic fiber-derived biphasic granules with adjustable core compositions for tuning bone regeneration efficacy. J Mater Chem B 2023; 11:2417-2430. [PMID: 36809396 DOI: 10.1039/d2tb02702j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Silicate-based biomaterials-clinically applied fillers and promising candidates-can act as a highly biocompatible substrate for osteostimulative osteogenic cell growth in vitro and in vivo. These biomaterials have been proven to exhibit a variety of conventional morphologies in bone repair, including scaffolds, granules, coatings and cement pastes. Herein, we aim to develop a series of novel bioceramic fiber-derived granules with core-shell structures which have a hardystonite (HT) shell layer and changeable core components-that is, the chemical compositions of a core layer can be tuned to include a wide range of silicate candidates (e.g., wollastonite (CSi)) with doping of functional ions (e.g., Mg, P, and Sr). Meanwhile, it is versatile to control the biodegradation and bioactive ion release sufficiently for stimulating new bone growth after implantation. Our method employs rapidly gelling ultralong core-shell CSi@HT fibers derived from different polymer hydrosol-loaded inorganic powder slurries through the coaxially aligned bilayer nozzles, followed by cutting and sintering treatments. It was demonstrated that the nonstoichiometric CSi core component could contribute to faster bio-dissolution and biologically active ion release in tris buffer in vitro. The rabbit femoral bone defect repair experiments in vivo indicated that core-shell bioceramic granules with an 8% P-doped CSi-core could significantly stimulate osteogenic potential favorable for bone repair. It is worth concluding that such a tunable component distribution strategy in fiber-type bioceramic implants may develop new-generation composite biomaterials endowed with time-dependent biodegradation and high osteostimulative activities for a range of bone repair applications in situ.
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Affiliation(s)
- Zhaonan Bao
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Jun Yang
- Department of Orthopaedic Surgery, Rui'an People's Hospital & the 3rd Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Jian Shen
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Yifan Li
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Yan Zhang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Guojing Yang
- Department of Orthopaedic Surgery, Rui'an People's Hospital & the 3rd Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Cheng Zhong
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Sanzhong Xu
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Lijun Xie
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Miaoda Shen
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
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9
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Souza L, Ferreira FV, Lopes JH, Camilli JA, Martin RA. Cancer Inhibition and In Vivo Osteointegration and Compatibility of Gallium-Doped Bioactive Glasses for Osteosarcoma Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45156-45166. [PMID: 36170227 PMCID: PMC9562271 DOI: 10.1021/acsami.2c12102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Traditional osteosarcoma therapies tend to focus solely on eradicating residual cancer cells and often fail to promote local bone regeneration and even inhibit it due to lack of precise control over target cells, i.e., the treatment affects both normal and cancer cells. Typically, multistep procedures are required for optimal efficacy. Here, we found that a silica-based bioactive material containing 3 mol % gallium oxide selectively kills human osteosarcoma cells and presents excellent in vivo osteointegration, while showing no local or systemic toxicity. Cell culture media conditioned with the proposed material was able to kill 41% of osteosarcoma cells, and no significant deleterious effect on normal human osteoblasts was observed. In addition, rats treated with the gallium-doped material showed excellent material-bone integration with no sign of local toxicity or implant rejection. Systemic biocompatibility investigation did not indicate any sign of toxicity, with no presence of fibrosis or cellular infiltrate in the histological microstructure of the liver and kidneys after 56 days of observation. Taken together, these results show that synergistic bone regeneration and targeted cancer therapy can be combined, paving the way toward new bone cancer treatment approaches.
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Affiliation(s)
- Lucas Souza
- Engineering
for Heath Research Centre, College of Engineering & Physical Sciences, Aston University, Birmingham B4 7ET, United Kingdom
| | - Filipe V. Ferreira
- Embrapa
Instrumentation, Nanotechnology National Laboratory for Agriculture, XV de Novembro, 1452, Sao Carlos 13560-970, Brazil
| | - Joao H. Lopes
- Department
of Chemistry, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes
50, Vila das Acacias, São José dos Campos, São Paulo 12228-900, Brazil
| | - Jose Angelo Camilli
- Department
of Functional and Structural Biology, State
University of Campinas, Campinas13083-970, Sao Paulo, Brazil
| | - Richard A. Martin
- Engineering
for Heath Research Centre, College of Engineering & Physical Sciences, Aston University, Birmingham B4 7ET, United Kingdom
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