1
|
Seesala VS, Sheikh L, Basu B, Mukherjee S. Mechanical and Bioactive Properties of PMMA Bone Cement: A Review. ACS Biomater Sci Eng 2024. [PMID: 39240690 DOI: 10.1021/acsbiomaterials.4c00779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2024]
Abstract
Over the past few decades, poly(methyl methacrylate) (PMMA) based bone cement has been clinically used extensively in orthopedics for arthroplasty and kyphoplasty, due to its biocompatibility and excellent primary fixation to the host bone. In this focused review, we discuss the use of various fillers and secondary chemical moieties to improve the bioactivity and the physicochemical properties. The viscosity of the PMMA blend formulations and working time are crucial to achieving intimate contact with the osseous tissue, which is highly sensitive to organic or inorganic fillers. Hydroxyapatite as a reinforcement resulted in compromised mechanical properties of the modified cement. The possible mechanisms of the additive- or filler-dependent strengthening or weakening of the PMMA blend are critically reviewed. The addition of layered double hydroxides with surface functionalization appears to be a promising approach to enhance the bonding of filler with the PMMA matrix. Such an approach consequently improves the mechanical properties, owing to enhanced dispersion as well as contributions from crack bridging. Finally, the use of emerging alternatives, such as nanoparticles, and the use of natural biomolecules were highlighted to improve bioactivity and antibacterial properties.
Collapse
Affiliation(s)
- Venkata Sundeep Seesala
- Advanced Materials and Characterization Group, Research and Development Division, Tata Steel Ltd, Jamshedpur 831001, India
| | - Lubna Sheikh
- Advanced Materials and Characterization Group, Research and Development Division, Tata Steel Ltd, Jamshedpur 831001, India
| | - Bikramjit Basu
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bengaluru 560012, India
| | - Subrata Mukherjee
- Advanced Materials and Characterization Group, Research and Development Division, Tata Steel Ltd, Jamshedpur 831001, India
| |
Collapse
|
2
|
Afrasiabi S, Partoazar A. Targeting bacterial biofilm-related genes with nanoparticle-based strategies. Front Microbiol 2024; 15:1387114. [PMID: 38841057 PMCID: PMC11150612 DOI: 10.3389/fmicb.2024.1387114] [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: 02/16/2024] [Accepted: 05/03/2024] [Indexed: 06/07/2024] Open
Abstract
Persistent infection caused by biofilm is an urgent in medicine that should be tackled by new alternative strategies. Low efficiency of classical treatments and antibiotic resistance are the main concerns of the persistent infection due to biofilm formation which increases the risk of morbidity and mortality. The gene expression patterns in biofilm cells differed from those in planktonic cells. One of the promising approaches against biofilms is nanoparticle (NP)-based therapy in which NPs with multiple mechanisms hinder the resistance of bacterial cells in planktonic or biofilm forms. For instance, NPs such as silver (Ag), zinc oxide (ZnO), titanium dioxide (TiO2), copper oxide (Cu), and iron oxide (Fe3O4) through the different strategies interfere with gene expression of bacteria associated with biofilm. The NPs can penetrate into the biofilm structure and affect the expression of efflux pump, quorum-sensing, and adhesion-related genes, which lead to inhibit the biofilm formation or development. Therefore, understanding and targeting of the genes and molecular basis of bacterial biofilm by NPs point to therapeutic targets that make possible control of biofilm infections. In parallel, the possible impact of NPs on the environment and their cytotoxicity should be avoided through controlled exposure and safety assessments. This study focuses on the biofilm-related genes that are potential targets for the inhibition of bacterial biofilms with highly effective NPs, especially metal or metal oxide NPs.
Collapse
Affiliation(s)
- Shima Afrasiabi
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Partoazar
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
3
|
Chiang JB, Yee DKH. A Toolbox of Bone Consolidation for the Interventional Radiologist. Cardiovasc Intervent Radiol 2023; 46:1447-1457. [PMID: 37165213 DOI: 10.1007/s00270-023-03445-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/11/2023] [Indexed: 05/12/2023]
Abstract
Bone consolidation is increasingly used in the treatment of both benign and malignant bone conditions. Percutaneous vertebroplasty, for example, has been shown to be useful in vertebral compression fractures in the VAPOUR trial which showed its superiority to placebo for pain reduction in the treatment of acute vertebral compressive fractures. Further tools have since been developed, such as kyphoplasty, spinal implants, and even developments in bone cements itself in attempt to improve outcome, such as chemotherapy-loaded cement or cement replacements such as radio-opaque silicon polymer. More importantly, bone fixation and its combination with cement have been increasingly performed to improve outcome. Interventional radiologists must first know the tools available, before they can best plan for their patients. This review article will focus on the tool box available for the modern interventional radiologist.
Collapse
Affiliation(s)
- Jeanie Betsy Chiang
- Block K Department of Radiology and Imaging, Queen Elizabeth Hospital, 30 Gascoigne Road, Yau Ma Tei, Kowloon, Hong Kong SAR, China.
| | - Dennis King Hang Yee
- Department of Orthopaedics and Traumatology, Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
| |
Collapse
|
4
|
Miola M, Lucchetta G, Verné E. Physical, Mechanical, and Biological Properties of PMMA-Based Composite Bone Cement Containing Silver-Doped Bioactive and Antibacterial Glass Particles with Different Particles Sizes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4499. [PMID: 37444813 DOI: 10.3390/ma16134499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/09/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023]
Abstract
In the present work, antibacterial composite bone cement was designed by introducing a bioactive and antibacterial glass into a commercial formulation. The effect of glass particles' addition on the curing parameters of the polymeric matrix was evaluated; moreover, the influence of the glass particle size on the glass dispersion, compressive and bending strength, bioactivity, and antibacterial effect was estimated. The results evidence a delay in the polymerization kinetics of the composite cement, which nevertheless complies with the requirements of the ISO standard. Morphological characterization provides evidence of good dispersion of the glass in the polymeric matrix and its exposition on the cement surface. The different glass grain sizes do not affect the composites' bioactivity and compressive strength, while a slight reduction in bending strength was observed for samples containing glass powders with greater dimensions. The size of the glass particles also appears to have an effect on the antibacterial properties, since the composites containing larger glass particles do not produce an inhibition halo towards the S. aureus strain. The obtained results demonstrate that, by carefully tailoring the glass amount and size, a multifunctional device for artificial joint fixing, temporary prostheses, or spinal surgery can be obtained.
Collapse
Affiliation(s)
- Marta Miola
- Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Giovanni Lucchetta
- Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131 Padua, Italy
| | - Enrica Verné
- Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| |
Collapse
|
5
|
Novel Strategy to Combat Antibiotic Resistance: A Sight into the Combination of CRISPR/Cas9 and Nanoparticles. Pharmaceutics 2021; 13:pharmaceutics13030352. [PMID: 33800235 PMCID: PMC7998274 DOI: 10.3390/pharmaceutics13030352] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/22/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022] Open
Abstract
Antibiotic resistance is a significant crisis that threatens human health and safety worldwide. There is an urgent need for new strategies to control multidrug-resistant (MDR) bacterial infections. The latest breakthrough in gene-editing tools based on CRISPR/Cas9 has potential application in combating MDR bacterial infections because of their high targeting ability to specifically disrupt the drug resistance genes that microbes use for infection or to kill the pathogen directly. Despite the potential that CRISPR/Cas9 showed, its further utilization has been hampered by undesirable delivery efficiency in vivo. Nanotechnology offers an alternative way to overcome the shortcomings of traditional delivery methods of therapeutic agents. Advances in nanotechnology can improve the efficacy and safety of CRISPR/Cas9 components by using customized nanoparticle delivery systems. The combination of CRISPR/Cas9 and nanotechnology has the potential to open new avenues in the therapy of MDR bacterial infections. This review describes the recent advances related to CRISPR/Cas9 and nanoparticles for antimicrobial therapy and gene delivery, including the improvement in the packaging and localizing efficiency of the CRISPR/Cas9 components in the NP (nanoparticle)/CRISPR system. We pay particular attention to the strengths and limitations of the nanotechnology-based CRISPR/Cas9 delivery system to fight nosocomial pathogens.We highlight the need for more scientific research to explore the combinatorial efficacy of various nanoparticles and CRISPR technology to control and prevent antimicrobial resistance.
Collapse
|
6
|
Li P, Gao Z, Tan Z, Xiao J, Wei L, Chen Y. New developments in anti-biofilm intervention towards effective management of orthopedic device related infections (ODRI's). BIOFOULING 2021; 37:1-35. [PMID: 33618584 DOI: 10.1080/08927014.2020.1869725] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 12/15/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Orthopedic device related infections (ODRI's) represent a difficult to treat situation owing to their biofilm based nature. Biofilm infections once established are difficult to eradicate even with an aggressive treatment regimen due to their recalcitrance towards antibiotics and immune attack. The involvement of antibiotic resistant pathogens as the etiological agent further worsens the overall clinical picture, pressing on the need to look into alternative treatment strategies. The present review highlightes the microbiological challenges associated with treatment of ODRI's due to biofilm formation on the implant surface. Further, it details the newer anti-infective modalities that work either by preventing biofilm formation and/or through effective disruption of the mature biofilms formed on the medical implant. The study, therefore aims to provide a comprehensive insight into the newer anti-biofilm interventions (non-antibiotic approaches) and a better understanding of their mechanism of action essential for improved management of orthopedic implant infections.
Collapse
Affiliation(s)
- Ping Li
- Department of Orthopedics, Ya'an People's Hospital, Yaan City, China
| | - Zhenwu Gao
- Department of Orthopedics, Shanxi Bethune Hospital, Taiyuan City, China
| | - Zhenwei Tan
- Department of Orthopedics, Western Theater Air Force Hospital of PLA, Chengdu, China
| | - Jun Xiao
- Department of Orthopedics, Ya'an People's Hospital, Yaan City, China
| | - Li Wei
- Nursing Department, Three Gorges Hospital Affiliated to Chongqing University, Chongqing, China
| | - Yirui Chen
- Department of Orthopedics, Three Gorges Hospital Affiliated to Chongqing University, Chongqing, China
| |
Collapse
|
7
|
Ferraris S, Yamaguchi S, Barbani N, Cristallini C, Gautier di Confiengo G, Barberi J, Cazzola M, Miola M, Vernè E, Spriano S. The mechanical and chemical stability of the interfaces in bioactive materials: The substrate-bioactive surface layer and hydroxyapatite-bioactive surface layer interfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111238. [PMID: 32806332 DOI: 10.1016/j.msec.2020.111238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/05/2020] [Accepted: 06/23/2020] [Indexed: 12/25/2022]
Abstract
Bioactive materials should maintain their properties during implantation and for long time in contact with physiological fluids and tissues. In the present research, five different bioactive materials (a bioactive glass and four different chemically treated bioactive titanium surfaces) have been studied and compared in terms of mechanical stability of the surface bioactive layer-substrate interface, their long term bioactivity, the type of hydroxyapatite matured and the stability of the hydroxyapatite-surface bioactive layer interface. Numerous physical and chemical analyses (such as Raman spectroscopy, macro and micro scratch tests, soaking in SBF, Field Emission Scanning Electron Microscopy equipped with Energy Dispersive Spectroscopy (SEM-EDS), zeta potential measurements and Fourier Transformed Infra-Red spectroscopy (FTIR) with chemical imaging) were used. Scratch measurements evidenced differences among the metallic surfaces concerning the mechanical stability of the surface bioactive layer-substrate interface. All the surfaces, despite of different kinetics of bioactivity, are covered by a bone like carbonate-hydroxyapatite with B-type substitution after 28 days of soaking in SBF. However, the stability of the apatite layer is not the same for all the materials: dissolution occurs at pH around 4 (close to inflammation condition) in a more pronounced way for the surfaces with faster bioactivity together with detachment of the surface bioactive layer. A protocol of characterization is here suggested to predict the implant-bone interface stability.
Collapse
Affiliation(s)
- S Ferraris
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - S Yamaguchi
- Chubu University, 1200 Matsumoto cho -, Kasugai, Japan
| | - N Barbani
- University of Pisa, DICI - Largo Lucio Lazzarino 1, 56126 Pisa, Italy
| | - C Cristallini
- CNR, IPCF - Largo Lucio Lazzarino 1, 56126 Pisa, Italy
| | | | - J Barberi
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - M Cazzola
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - M Miola
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - E Vernè
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - S Spriano
- Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| |
Collapse
|
8
|
Ferraris S, Yamaguchi S, Barbani N, Cazzola M, Cristallini C, Miola M, Vernè E, Spriano S. Bioactive materials: In vitro investigation of different mechanisms of hydroxyapatite precipitation. Acta Biomater 2020; 102:468-480. [PMID: 31734414 DOI: 10.1016/j.actbio.2019.11.024] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/31/2019] [Accepted: 11/11/2019] [Indexed: 01/06/2023]
Abstract
Bioactive materials, able to induce hydroxyapatite precipitation in contact with body fluids, are of great interest for their bone bonding capacity. . The aim of this paper is to compare bioactive materials with different surface features to verify the mechanisms of action and the relationship with kinetics and type of precipitated hydroxyapatite over time. Four different surface treatments for Ti/Ti6Al4V alloy and a bioactive glass were selected and a different mechanism of bioactivity is supposed for each of them. Apart from the conventional techniques (FESEM, XPS and EDX), less common characterizations (zeta potential measurements on solid surfaces and FTIR chemical imaging) were applied. The results suggest that the OH groups on the surface have several effects: the total number of the OH groups mainly affects hydrophilicity of surfaces, while the isoelectric points, surface charge and ions attraction mainly depend on OH acidic/basic strength. Kinetics of hydroxyapatite precipitation is faster when it involves a mechanism of ion exchange while it is slower when it is due to electrostatic effects . The electrostatic effect cooperates with ion exchange and it speeds up kinetics of hydroxyapatite precipitation. Different bioactive surfaces are able to differently induce precipitation of type A and B of hydroxyapatite, as well as different degrees of crystallinity and carbonation. STATEMENT OF SIGNIFICANCE: The bone is made of a ceramic phase (a specific type of hydroxyapatite), a network of collagen fibers and the biological tissue. A strong bond of an orthopedic or dental implant with the bone is achieved by bioactive materials where precipitation and growth of hydroxyapatite occurs on the implant surface starting from the ions in the physiological fluids. Several bioactive materials are already known and used, but their mechanism of action is not completely known and the type of precipitated hydroxyapatite not fully investigated. In this work, bioactive titanium and bioglass surfaces are compared through conventional and innovative methodologies. Different mechanisms of bioactivity are identified, with different kinetics and the materials are able to induce precipitation of different types of hydroxyapatite, with different degree of crystallinity and carbonation.
Collapse
Affiliation(s)
- S Ferraris
- Politecnico di Torino, Corso Duca degli Abruzzi 24, Corso Duca degli Abruzzi 24, 10129 Torino Italy
| | - S Yamaguchi
- Chubu University, 1200 Matsumoto cho, Kasugai Japan
| | - N Barbani
- University of Pisa, DICI - Largo Lucio Lazzarino 1, 56126 Pisa Italy
| | - M Cazzola
- Politecnico di Torino, Corso Duca degli Abruzzi 24, Corso Duca degli Abruzzi 24, 10129 Torino Italy
| | - C Cristallini
- CNR, IPCF - Largo Lucio Lazzarino 1, 56126 Pisa Italy
| | - M Miola
- Politecnico di Torino, Corso Duca degli Abruzzi 24, Corso Duca degli Abruzzi 24, 10129 Torino Italy
| | - E Vernè
- Politecnico di Torino, Corso Duca degli Abruzzi 24, Corso Duca degli Abruzzi 24, 10129 Torino Italy
| | - S Spriano
- Politecnico di Torino, Corso Duca degli Abruzzi 24, Corso Duca degli Abruzzi 24, 10129 Torino Italy.
| |
Collapse
|
9
|
Cochis A, Barberi J, Ferraris S, Miola M, Rimondini L, Vernè E, Yamaguchi S, Spriano S. Competitive Surface Colonization of Antibacterial and Bioactive Materials Doped with Strontium and/or Silver Ions. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E120. [PMID: 31936394 PMCID: PMC7022475 DOI: 10.3390/nano10010120] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/28/2019] [Accepted: 01/06/2020] [Indexed: 12/15/2022]
Abstract
Nowadays, there is a large amount of research aimed at improving the multifunctional behavior of the biomaterials for bone contact, including the concomitant ability to induce apatite formation (bioactivity), fast and effective osteoblasts colonization, and antibacterial activity. The aim of this study is to develop antibacterial and bioactive surfaces (Ti6Al4V alloy and a silica-based bioactive glass) by chemical doping with strontium and/or silver ions. The surfaces were characterized by Scanning Electron Microscopy equipped with Energy Dispersive X ray Spectroscopy (SEM-EDS), X-ray photoelectron spectroscopy (XPS), and Transmission Electron Microscopy (TEM). To better focus on the cells-bacteria competition for the implant surface, in addition to the standard assays for the evaluation of the bacteria adhesion (ISO22196) and for single-cell cultures or biofilm formation, an innovative set of co-cultures of cells and bacteria is here proposed to simulate a competitive surface colonization. The results suggest that all the bioactive tested materials were cytocompatible toward the bone progenitor cells representative for the self-healing process, and that the doped ones were effective in reducing the surface colonization from a pathogenic drug-resistant strain of Staphylococcus aureus. The co-cultures experiments demonstrated that the doped surfaces were able to protect the adhered osteoblasts from the bacteria colonization as well as prevent the infection prior to the surface colonization by the osteoblasts.
Collapse
Affiliation(s)
- Andrea Cochis
- Department of Health Science Università del Piemonte Orientale UPO, 28100 Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, 28100 Novara, Italy
| | - Jacopo Barberi
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Interdipartimental Laboratory PolitoBIOMedLab, Politecnico di Torino, 10129 Torino, Italy
| | - Sara Ferraris
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Interdipartimental Laboratory PolitoBIOMedLab, Politecnico di Torino, 10129 Torino, Italy
| | - Marta Miola
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Interdipartimental Laboratory PolitoBIOMedLab, Politecnico di Torino, 10129 Torino, Italy
| | - Lia Rimondini
- Department of Health Science Università del Piemonte Orientale UPO, 28100 Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, 28100 Novara, Italy
| | - Enrica Vernè
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Interdipartimental Laboratory PolitoBIOMedLab, Politecnico di Torino, 10129 Torino, Italy
| | - Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
| | - Silvia Spriano
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Interdipartimental Laboratory PolitoBIOMedLab, Politecnico di Torino, 10129 Torino, Italy
| |
Collapse
|
10
|
Li J, Wang H, Guo Q, Zhu C, Zhu X, Han F, Yang H, Li B. Multifunctional Coating to Simultaneously Encapsulate Drug and Prevent Infection of Radiopaque Agent. Int J Mol Sci 2019; 20:E2055. [PMID: 31027323 PMCID: PMC6539451 DOI: 10.3390/ijms20092055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/21/2022] Open
Abstract
Poly(methyl methacrylate) (PMMA) bone cements have been widely used in clinical practices. In order to enhance PMMA's imaging performance to facilitate surgical procedures, a supplementation of radiopaque agent is needed. However, PMMA bone cements are still facing problems of loosening and bacterial infection. In this study, a multifunctional coating to simultaneously encapsulate drug and prevent the infection of radiopaque agent has been developed. Barium sulfate (BaSO4), a common radiopaque agent, is used as a substrate material. We successfully fabricated porous BaSO4 microparticles, then modified with hexakis-(6-iodo-6-deoxy)-alpha-cyclodextrin (I-CD) and silver (Ag) to obtain porous BaSO4@PDA/I-CD/Ag microparticles. The porous nature and presence of PDA coating and I-CD on the surface of microparticles result in efficient loading and release of drugs such as protein. Meanwhile, the radiopacity of BaSO4@PDA/I-CD/Ag microparticles is enhanced by this multifunctional coating containing Ba, I and Ag. PMMA bone cements containing BaSO4@PDA/I-CD/Ag microparticles show 99% antibacterial rate against both Staphylococcus aureus (S. aureus) and Escherichia Coli (E. coli), yet without apparently affecting its biocompatibility. Together, this multifunctional coating possessing enhanced radiopacity, controlled drug delivery capability and exceptional antibacterial performance, may be a new way to modify radiopaque agents for bone cements.
Collapse
Affiliation(s)
- Jiaying Li
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Huan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Qianping Guo
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Caihong Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Xuesong Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Fengxuan Han
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Huilin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Bin Li
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, Jiangsu, China.
- China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou 310000, Zhejiang, China.
| |
Collapse
|
11
|
Electrospun Filaments Embedding Bioactive Glass Particles with Ion Release and Enhanced Mineralization. NANOMATERIALS 2019; 9:nano9020182. [PMID: 30717161 PMCID: PMC6410207 DOI: 10.3390/nano9020182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 12/15/2022]
Abstract
Efforts in tissue engineering aim at creating scaffolds that mimic the physiological environment with its structural, topographical and mechanical properties for restoring the function of damaged tissue. In this study we introduce composite fibres made by a biodegradable poly(lactic acid) (PLLA) matrix embedding bioactive silica-based glass particles (SBA2). Electrospinning is performed to achieve porous PLLA filaments with uniform dispersion of bioactive glass powder. The obtained composite fibres show in aligned arrays significantly increased elastic modulus compared with that of neat polymer fibres during uniaxial tensile stress. Additionally, the SBA2 bioactivity is preserved upon encapsulation as highlighted by the promoted deposition of hydroxycarbonate apatite (HCA) upon immersion in simulated body fluid solutions. HCA formation is sequential to earlier processes of polymer erosion and ion release leading to acidification of the surrounding solution environment. These findings suggest PLLA-SBA2 fibres as a composite, multifunctional system which might be appealing for both bone and soft tissue engineering applications.
Collapse
|
12
|
Ziąbka M, Dziadek M, Królicka A. Biological and Physicochemical Assessment of Middle Ear Prosthesis. Polymers (Basel) 2019; 11:E79. [PMID: 30960063 PMCID: PMC6402019 DOI: 10.3390/polym11010079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 01/18/2023] Open
Abstract
Polymers modified with bioactive nanoparticles are a promising solution for patients who need a tissue replacement. Modern implants, thanks to bioactive and bactericidal functions, facilitate the healing and regeneration process of the replaced tissue. The aim of this study was to assess whether silver nanoparticles (AgNPs) could support antibacterial function without cytotoxic effect and deterioration of biostability. This article describes biological and physiochemical aspects concerning a new polymeric middle ear implant (Otoimplant) enriched with silver nanoparticles. This kind of prosthesis is a promising implant for the reconstruction of ossicles in ossiculoplasty. We found that incorporation of silver nanoparticles into a polymeric matrix resulted in bactericidal efficacy against Gram-positive and Gram-negative bacteria, both resistant to antibiotics and basic strains. Our prostheses do not show cytotoxic effect and are a suitable biomaterial platform for effective culture of Saos2 and NHOst osteoblastic cells. The in vitro incubation of the samples in distilled water revealed that surface parameters, such as roughness, may slightly increase as a result of unveiling nanoparticles. However, the prolonged immersion does not change mechanical parameters. During one-year incubation, the prosthesis proved to retain stable values of Young's modulus, tensile strength, propagation of longitudinal ultrasonic waves, pH, and conductivity.
Collapse
Affiliation(s)
- Magdalena Ziąbka
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Ceramics and Refractories, 30-059 Krakow, Poland.
| | - Michał Dziadek
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Glass Technology and Amorphous Coatings, 30-059 Krakow, Poland.
| | - Aleksandra Królicka
- University of Gdansk, Intercollegiate Faculty of Biotechnology UG-GUMed, Department of Biotechnology, Laboratory of Biologically Active Compounds, 80-307 Gdansk, Poland.
| |
Collapse
|
13
|
Miola M, Cochis A, Kumar A, Arciola CR, Rimondini L, Verné E. Copper-Doped Bioactive Glass as Filler for PMMA-Based Bone Cements: Morphological, Mechanical, Reactivity, and Preliminary Antibacterial Characterization. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E961. [PMID: 29882763 PMCID: PMC6025430 DOI: 10.3390/ma11060961] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/01/2018] [Accepted: 06/04/2018] [Indexed: 12/13/2022]
Abstract
To promote osteointegration and simultaneously limit bacterial contamination without using antibiotics, we designed innovative composite cements containing copper (Cu)-doped bioactive glass powders. Cu-doped glass powders were produced by a melt and quenching process, followed by an ion-exchange process in a Cu salt aqueous solution. Cu-doped glass was incorporated into commercial polymethyl methacrylate (PMMA)-based cements with different viscosities. The realized composites were characterized in terms of morphology, composition, leaching ability, bioactivity, mechanical, and antibacterial properties. Glass powders appeared well distributed and exposed on the PMMA surface. Composite cements showed good bioactivity, evidencing hydroxyapatite precipitation on the sample surfaces after seven days of immersion in simulated body fluid. The leaching test demonstrated that composite cements released a significant amount of copper, with a noticeable antibacterial effect toward Staphylococcus epidermidis strain. Thus, the proposed materials represent an innovative and multifunctional tool for orthopedic prostheses fixation, temporary prostheses, and spinal surgery.
Collapse
Affiliation(s)
- Marta Miola
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy.
| | - Andrea Cochis
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), 28100 Novara, Italy.
| | - Ajay Kumar
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
| | - Carla Renata Arciola
- Research Unit on Implant Infections, Rizzoli Orthopaedic Institute, 40136 Bologna, Italy.
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy.
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
| | - Enrica Verné
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy.
| |
Collapse
|
14
|
Wang L, Hu C, Shao L. The antimicrobial activity of nanoparticles: present situation and prospects for the future. Int J Nanomedicine 2017; 12:1227-1249. [PMID: 28243086 PMCID: PMC5317269 DOI: 10.2147/ijn.s121956] [Citation(s) in RCA: 1613] [Impact Index Per Article: 230.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles (NPs) are increasingly used to target bacteria as an alternative to antibiotics. Nanotechnology may be particularly advantageous in treating bacterial infections. Examples include the utilization of NPs in antibacterial coatings for implantable devices and medicinal materials to prevent infection and promote wound healing, in antibiotic delivery systems to treat disease, in bacterial detection systems to generate microbial diagnostics, and in antibacterial vaccines to control bacterial infections. The antibacterial mechanisms of NPs are poorly understood, but the currently accepted mechanisms include oxidative stress induction, metal ion release, and non-oxidative mechanisms. The multiple simultaneous mechanisms of action against microbes would require multiple simultaneous gene mutations in the same bacterial cell for antibacterial resistance to develop; therefore, it is difficult for bacterial cells to become resistant to NPs. In this review, we discuss the antibacterial mechanisms of NPs against bacteria and the factors that are involved. The limitations of current research are also discussed.
Collapse
Affiliation(s)
- Linlin Wang
- Department of Stomatology, Hainan General Hospital, Haikou, Hainan
| | - Chen Hu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Longquan Shao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| |
Collapse
|
15
|
da Silva JG, Babb R, Salzlechner C, Sharpe PT, Brauer DS, Gentleman E. Optimisation of lithium-substituted bioactive glasses to tailor cell response for hard tissue repair. JOURNAL OF MATERIALS SCIENCE 2017; 52:8832-8844. [PMID: 29056759 PMCID: PMC5644509 DOI: 10.1007/s10853-017-0838-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 01/24/2017] [Indexed: 06/07/2023]
Abstract
Bioactive glasses (BG) are used clinically because they can both bond to hard tissue and release therapeutic ions that can stimulate nearby cells. Lithium has been shown to regulate the Wnt/β-catenin cell signalling pathway, which plays important roles in the formation and repair of bone and teeth. Lithium-releasing BG, therefore, have the potential to locally regulate hard tissue formation; however, their design must be tailored to induce an appropriate biological response. Here, we optimised the release of lithium from lithium-substituted BG by varying BG composition, particle size and concentration to minimise toxicity and maximise upregulation of the Wnt target gene Axin2 in in vitro cell cultures. Our results show that we can tailor lithium release from BG over a wide therapeutic and non-toxic range. Increasing the concentration of BG in cell culture medium can induce toxicity, likely due to modulations in pH. Nevertheless, at sub-toxic concentrations, lithium released from BG can upregulate the Wnt pathway in 17IA4 cells, similarly to treatment with LiCl. Taken together, these data demonstrate that ion release from lithium-substituted BG can be tailored to maximise biological response. These data may be important in the design of BG that can regulate the Wnt/β-catenin pathway to promote hard tissue repair or regeneration.
Collapse
Affiliation(s)
- Jeison Gabriel da Silva
- Craniofacial Development and Stem Cell Biology, King’s College London, 27th Floor, Guy’s Hospital, London, SE1 9RT UK
| | - Rebecca Babb
- Craniofacial Development and Stem Cell Biology, King’s College London, 27th Floor, Guy’s Hospital, London, SE1 9RT UK
| | - Christoph Salzlechner
- Craniofacial Development and Stem Cell Biology, King’s College London, 27th Floor, Guy’s Hospital, London, SE1 9RT UK
| | - Paul T. Sharpe
- Craniofacial Development and Stem Cell Biology, King’s College London, 27th Floor, Guy’s Hospital, London, SE1 9RT UK
| | - Delia S. Brauer
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Eileen Gentleman
- Craniofacial Development and Stem Cell Biology, King’s College London, 27th Floor, Guy’s Hospital, London, SE1 9RT UK
| |
Collapse
|