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Zhai S, Tian Y, Shi X, Liu Y, You J, Yang Z, Wu Y, Chu S. Overview of strategies to improve the antibacterial property of dental implants. Front Bioeng Biotechnol 2023; 11:1267128. [PMID: 37829564 PMCID: PMC10565119 DOI: 10.3389/fbioe.2023.1267128] [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: 07/26/2023] [Accepted: 09/14/2023] [Indexed: 10/14/2023] Open
Abstract
The increasing number of peri-implant diseases and the unsatisfactory results of conventional treatment are causing great concern to patients and medical staff. The effective removal of plaque which is one of the key causes of peri-implant disease from the surface of implants has become one of the main problems to be solved urgently in the field of peri-implant disease prevention and treatment. In recent years, with the advancement of materials science and pharmacology, a lot of research has been conducted to enhance the implant antimicrobial properties, including the addition of antimicrobial coatings on the implant surface, the adjustment of implant surface topography, and the development of new implant materials, and significant progress has been made in various aspects. Antimicrobial materials have shown promising applications in the prevention of peri-implant diseases, but meanwhile, there are some shortcomings, which leads to the lack of clinical widespread use of antimicrobial materials. This paper summarizes the research on antimicrobial materials applied to implants in recent years and presents an outlook on the future development.
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Affiliation(s)
| | | | | | | | | | | | | | - Shunli Chu
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
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Yin Z, Liu Y, Anniwaer A, You Y, Guo J, Tang Y, Fu L, Yi L, Huang C. Rational Designs of Biomaterials for Combating Oral Biofilm Infections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305633. [PMID: 37566788 DOI: 10.1002/adma.202305633] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Oral biofilms, which are also known as dental plaque, are the culprit of a wide range of oral diseases and systemic diseases, thus contributing to serious health risks. The manner of how to achieve good control of oral biofilms has been an increasing public concern. Novel antimicrobial biomaterials with highly controllable fabrication and functionalization have been proven to be promising candidates. However, previous reviews have generally emphasized the physicochemical properties, action mode, and application effectiveness of those biomaterials, whereas insufficient attention has been given to the design rationales tailored to different infection types and application scenarios. To offer guidance for better diversification and functionalization of anti-oral-biofilm biomaterials, this review details the up-to-date design rationales in three aspects: the core strategies in combating oral biofilm, as well as the biomaterials with advanced antibiofilm capacity and multiple functions based on the improvement or combination of the abovementioned antimicrobial strategies. Thereafter, insights on the existing challenges and future improvement of biomaterial-assisted oral biofilm treatments are proposed, hoping to provide a theoretical basis and reference for the subsequent design and application of antibiofilm biomaterials.
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Affiliation(s)
- Zhengrong Yin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Yaxi Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Annikaer Anniwaer
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Yuan You
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Jingmei Guo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Ying Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Renmin Hospital of Wuhan University, Wuhan University Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430072, China
| | - Luyao Yi
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Cui Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
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Mansoor A, Khurshid Z, Khan MT, Mansoor E, Butt FA, Jamal A, Palma PJ. Medical and Dental Applications of Titania Nanoparticles: An Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203670. [PMID: 36296859 PMCID: PMC9611494 DOI: 10.3390/nano12203670] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 05/25/2023]
Abstract
Currently, titanium oxide (TiO2) nanoparticles are successfully employed in human food, drugs, cosmetics, advanced medicine, and dentistry because of their non-cytotoxic, non-allergic, and bio-compatible nature when used in direct close contact with the human body. These NPs are the most versatile oxides as a result of their acceptable chemical stability, lower cost, strong oxidation properties, high refractive index, and enhanced aesthetics. These NPs are fabricated by conventional (physical and chemical) methods and the latest biological methods (biological, green, and biological derivatives), with their advantages and disadvantages in this epoch. The significance of TiO2 NPs as a medical material includes drug delivery release, cancer therapy, orthopedic implants, biosensors, instruments, and devices, whereas their significance as a dental biomaterial involves dentifrices, oral antibacterial disinfectants, whitening agents, and adhesives. In addition, TiO2 NPs play an important role in orthodontics (wires and brackets), endodontics (sealers and obturating materials), maxillofacial surgeries (implants and bone plates), prosthodontics (veneers, crowns, bridges, and acrylic resin dentures), and restorative dentistry (GIC and composites).
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Affiliation(s)
- Afsheen Mansoor
- Department of Dental Material Sciences, School of Dentistry, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44080, Pakistan
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Muhammad Talal Khan
- Department of Dental Biomaterials, Bakhtawar Amin Medical and Dental College, Multan 60650, Pakistan;
| | - Emaan Mansoor
- Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan;
| | - Faaz Ahmad Butt
- Department of Materials Engineering, NED University of Engineering & Technology, Karachi 74200, Pakistan;
| | - Asif Jamal
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Paulo J. Palma
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
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Silva Lima Mendes DT, Leite Matos GR, Stwart de Araújo Souza SA, Souza Silva Macedo MC, Tavares DDS, Resende CX. Does the incorporation of zinc into TiO 2 on titanium surfaces increase bactericidal activity? A systematic review and meta-analysis. J Prosthet Dent 2022:S0022-3913(22)00328-6. [PMID: 36270807 DOI: 10.1016/j.prosdent.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/05/2022]
Abstract
STATEMENT OF PROBLEM Infections associated with bacterial biofilm formation are an important cause of early implant failure. With the growing number of antibiotic-resistant bacteria, the incorporation of zinc into TiO2 coatings of titanium implants has emerged to promote osseointegration and inhibit bacterial proliferation. However, a systematic assessment of its efficacy is lacking. PURPOSE The purpose of this systematic review and meta-analysis was to assess the bactericidal effect of zinc-modified TiO2 coatings on titanium or Ti-6Al-4V alloy. MATERIAL AND METHODS The review was structured based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) checklist and the peer review of electronic search strategies (PRESS) guidelines. The search was performed in Science Direct, SCOPUS, Web of Science, and PubMed databases, including experimental in vitro studies that used titanium or Ti-6Al-4V as a control group and performed bacterial assays. Meta-analysis was performed by using the standardized mean differences of antibacterial effects. RESULTS A total of 2519 articles were collected after duplicate removal. Then, eligibility criteria and a manual search were applied to select 20 studies for qualitative analysis and 16 studies for statistical analysis. The risk of bias revealed low-quality evidence. The meta-analysis showed that zinc positively affected the bactericidal activity of TiO2 coatings (-8.79, CI95%=-11.01 to -6.57, P<.001), with a high degree of heterogeneity (I2=78%). Subgroup analysis with TiO2 nanotubes produced by anodization and ZnO nanoparticles by hydrothermal synthesis reduced heterogeneity to 43%, with the removal of outliers (I2=46%), with a favorable antibacterial effect for zinc incorporation into TiO2. CONCLUSIONS Bactericidal activity was identified for zinc incorporated into TiO2 coatings, making it an interesting option for titanium dental implants.
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Affiliation(s)
- Douglas Thainan Silva Lima Mendes
- Postgraduate student, Post-graduate Program in Materials Science and Engineering, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | - Gusttavo Reis Leite Matos
- Postgraduate student, Post-graduate Program in Materials Science and Engineering, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | | | | | - Débora Dos Santos Tavares
- Adjunct Professor, Department of Health Education, Federal University of Sergipe (UFS), Lagarto, Sergipe, Brazil
| | - Cristiane Xavier Resende
- Adjunct Professor, Department of Materials Science and Engineering, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil.
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Navarro-Gázquez PJ, Muñoz-Portero MJ, Blasco-Tamarit E, Sánchez-Tovar R, García-Antón J. Synthesis and applications of TiO 2/ZnO hybrid nanostructures by ZnO deposition on TiO 2 nanotubes using electrochemical processes. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In recent years, TiO2/ZnO hybrid nanostructures have been attracting the interest of the scientific community due to their excellent photoelectrochemical properties. The main advantage of TiO2/ZnO hybrid nanostructures over other photocatalysts based on semiconductor materials lies in their ability to form heterojunctions in which the valence and conduction bands of both semiconductors are intercalated. This factor produces a decrease in the band gap and the recombination rate and an increase in the light absorption range. The aim of this review is to perform a revision of the main methods to synthesise TiO2/ZnO hybrid nanostructures by ZnO deposition on TiO2 nanotubes using electrochemical processes. Electrochemical synthesis methods provide an easy, fast, and highly efficient route to carry out the synthesis of nanostructures such as nanowires, nanorods, nanotubes, etc. They allow us to control the stoichiometry, thickness and structure mainly by controlling the voltage, time, temperature, composition of the electrolyte, and concentration of monomers. In addition, a study of the most promising applications for TiO2/ZnO hybrid nanostructures has been carried out. In this review, the applications of dye-sensitised solar cell, photoelectrocatalytic degradation of organic compounds, photoelectrochemical water splitting, gas sensors, and lithium-ion batteries have been highlighted.
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Affiliation(s)
- Pedro José Navarro-Gázquez
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Maria J. Muñoz-Portero
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Encarna Blasco-Tamarit
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Rita Sánchez-Tovar
- Departamento de Ingeniería Química, Universitat de Valencia , Av. de las Universitats, s/n, 46100 Burjassot , Spain
| | - José García-Antón
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
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Noorollahian S, Kachuie M, Hatamzade Z, Moghadam M, Narimani T. The antimicrobial effect of doxycycline and doped ZnO in TiO 2 nanotubes synthesized on the surface of orthodontic mini-implants. APOS TRENDS IN ORTHODONTICS 2022. [DOI: 10.25259/apos_14_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objectives:
Anchorage preservation is crucial in orthodontic treatment success. Mini-implants make a revolution in this domain. The failure of orthodontic mini-implants due to inflammation and infection is one of the reasons for anchorage loss. The purpose of this study was to evaluate the effect of a novel mini-implant surface modification to improve resistance against microbial contamination and surrounding tissue inflammation.
Material and Methods:
Twenty-four orthodontic mini-implants (Jeil Medical Corporation, Korea) with 1.6 mm diameter and 8 mm length were randomly divided into three groups: Group 1: Control group, Group 2: Nanotubes were made on the surface with anodisation, and Group 3: Zinc Oxide (ZnO) doped into nanotubes, and then doxycycline is added to them. The anti-bacterial efficacy against Porphyromonas gingivalis was evaluated using the disk diffusion method. To analyze data, Kruskal–Wallis, Friedman, and Wilcoxon tests were done. The significance level was set at 0.05.
Results:
No zone of the inhibition was formed in Groups 1 and 2. In Group 3, the mean (SD) diameter of the inhibition zone in the first 5-day to sixth 5-day were 38.7(8.2), 25(4.8), 17.8(5.6), 7.63(5.37), 1.5(2.83), and 0 millimeters, respectively.
Conclusion:
Nanotubes containing doped ZnO and Doxycycline are capable of preventing bacterial growth around the mini implant surfaces for at least up to 30 days. To manage inflammation of surrounding tissues of mini-implants, nanotubes are not effective alone. Therefore, the presence of diffusible materials in addition to nanotubes on the surface of mini-implants is necessary.
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Affiliation(s)
- Saeed Noorollahian
- Department of Orthodontics, Isfahan University of Medical Science, Isfahan, Iran,
| | - Marzie Kachuie
- Department of Orthodontics, Isfahan University of Medical Science, Isfahan, Iran,
| | - Zahra Hatamzade
- Department of Orthodontics, Isfahan University of Medical Science, Isfahan, Iran,
| | - Majid Moghadam
- Department of Chemistry, Isfahan University, Isfahan, Iran,
| | - Tahmineh Narimani
- Department of Microbiology, Isfahan University of Medical Science, Isfahan, Iran,
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Recent Advances in Metal-Based Antimicrobial Coatings for High-Touch Surfaces. Int J Mol Sci 2022; 23:ijms23031162. [PMID: 35163084 PMCID: PMC8835042 DOI: 10.3390/ijms23031162] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 02/06/2023] Open
Abstract
International interest in metal-based antimicrobial coatings to control the spread of bacteria, fungi, and viruses via high contact human touch surfaces are growing at an exponential rate. This interest recently reached an all-time high with the outbreak of the deadly COVID-19 disease, which has already claimed the lives of more than 5 million people worldwide. This global pandemic has highlighted the major role that antimicrobial coatings can play in controlling the spread of deadly viruses such as SARS-CoV-2 and scientists and engineers are now working harder than ever to develop the next generation of antimicrobial materials. This article begins with a review of three discrete microorganism-killing phenomena of contact-killing surfaces, nanoprotrusions, and superhydrophobic surfaces. The antimicrobial properties of metals such as copper (Cu), silver (Ag), and zinc (Zn) are reviewed along with the effects of combining them with titanium dioxide (TiO2) to create a binary or ternary contact-killing surface coatings. The self-cleaning and bacterial resistance of purely structural superhydrophobic surfaces and the potential of physical surface nanoprotrusions to damage microbial cells are then considered. The article then gives a detailed discussion on recent advances in attempting to combine these individual phenomena to create super-antimicrobial metal-based coatings with binary or ternary killing potential against a broad range of microorganisms, including SARS-CoV-2, for high-touch surface applications such as hand rails, door plates, and water fittings on public transport and in healthcare, care home and leisure settings as well as personal protective equipment commonly used in hospitals and in the current COVID-19 pandemic.
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Navarro-Gázquez PJ, Muñoz-Portero MJ, Blasco-Tamarit E, Sánchez-Tovar R, Fernández-Domene RM, García-Antón J. Original Approach to Synthesize TiO 2/ZnO Hybrid Nanosponges Used as Photoanodes for Photoelectrochemical Applications. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6441. [PMID: 34771967 PMCID: PMC8585194 DOI: 10.3390/ma14216441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/16/2021] [Accepted: 10/24/2021] [Indexed: 12/24/2022]
Abstract
In the present work, TiO2/ZnO hybrid nanosponges have been synthesized for the first time. First, TiO2 nanosponges were obtained by anodization under hydrodynamic conditions in a glycerol/water/NH4F electrolyte. Next, in order to achieve the anatase phase of TiO2 and improve its photocatalytic behaviour, the samples were annealed at 450 °C for 1 h. Once the TiO2 nanosponges were synthesized, TiO2/ZnO hybrid nanosponges were obtained by electrodeposition of ZnO on TiO2 nanosponges using different temperatures, times, and concentrations of zinc nitrate (Zn(NO3)2). TiO2/ZnO hybrid nanosponges were used as photoanodes in photoelectrochemical water splitting tests. The results indicate that the photoelectrochemical response improves, in the studied range, by increasing the temperature and the Zn(NO3)2 concentration during the electrodeposition process, obtaining an increase in the photoelectrochemical response of 141% for the TiO2/ZnO hybrid nanosponges electrodeposited at 75 °C with 10 mM Zn(NO3)2 for 15 min. Furthermore, morphological, chemical, and structural characterization was performed by Field Emission Scanning Electron Microscopy (FE-SEM) with Energy Dispersive X-Ray spectroscopy (EDX), Raman Confocal Laser Spectroscopy, X-Ray Photoelectron Spectroscopy (XPS), and Grazing Incidence X-Ray Diffraction (GIXRD).
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Affiliation(s)
- Pedro José Navarro-Gázquez
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (P.J.N.-G.); (M.J.M.-P.); (E.B.-T.)
| | - Maria José Muñoz-Portero
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (P.J.N.-G.); (M.J.M.-P.); (E.B.-T.)
| | - Encarna Blasco-Tamarit
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (P.J.N.-G.); (M.J.M.-P.); (E.B.-T.)
| | - Rita Sánchez-Tovar
- Departamento de Ingeniería Química, Universitat de Valencia, Av. de las Universitats, s/n, 46100 Burjassot, Spain; (R.S.-T.); (R.M.F.-D.)
| | - Ramon Manuel Fernández-Domene
- Departamento de Ingeniería Química, Universitat de Valencia, Av. de las Universitats, s/n, 46100 Burjassot, Spain; (R.S.-T.); (R.M.F.-D.)
| | - Jose García-Antón
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (P.J.N.-G.); (M.J.M.-P.); (E.B.-T.)
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Zhao Y, Lu R, Wang X, Huai X, Wang C, Wang Y, Chen S. Visible light-induced antibacterial and osteogenic cell proliferation properties of hydrogenated TiO 2 nanotubes/Ti foil composite. NANOTECHNOLOGY 2021; 32:195101. [PMID: 33513586 DOI: 10.1088/1361-6528/abe156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We successfully fabricated the hydrogenated TiO2 nanotubes/Ti foil (H-TNTs/f-Ti) composite via one-step anodization and two-step annealing. H-TNTs/f-Ti composite had a higher visible light-induced photoelectric response and more hydroxyl functional groups compared with Ti foil and unmodified TiO2 nanotubes/Ti foil composite, which contributed to limiting the proliferation of Streptococcus mutans and Porphyromonas gingivalis, promoting the proliferation of MC3T3-E1 cell on the hydroxylated surface, and improving the biocompatibility with osteogenic cells. Our study provides a simple and effective method for significantly improving dental implant efficacy.
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Affiliation(s)
- Yu Zhao
- Laboratory of Biomaterials and Biomechanics, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
| | - Ran Lu
- Laboratory of Biomaterials and Biomechanics, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
| | - Xin Wang
- Laboratory of Biomaterials and Biomechanics, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
| | - Xiaochen Huai
- Key Laboratory of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Caiyun Wang
- Laboratory of Biomaterials and Biomechanics, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
| | - Yuji Wang
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, People's Republic of China
- Beijing Laboratory of Biomedical Materials, School of Pharmaceutical Sciences; Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, People's Republic of China
| | - Su Chen
- Laboratory of Biomaterials and Biomechanics, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China
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10
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Titanium dioxide nanotubes as drug carriers for infection control and osteogenesis of bone implants. Drug Deliv Transl Res 2021; 11:1456-1474. [PMID: 33942245 DOI: 10.1007/s13346-021-00980-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2021] [Indexed: 02/07/2023]
Abstract
Titanium implants have been widely used as one of the most effective treatments of bone defects. However, the lack of osteogenesis and bacteria-resistant activities result in high infection and loosening rates of titanium implants. Anodic oxidation could easily construct titanium dioxide nanotubes (TNTs) array on the surface of titanium, and the rough surface of TNTs is beneficial to the growth of osteoblast-related cells on the surface. And TNTs could be excellent drug carriers because of their single-entry tubular hollow structure. In this review, we aim at detailing the application of TNTs as drug carriers in the field of bone implants. Starting from the topography of TNTs, we illustrated the biological activity of the TNTs surface, the drugs for loading in TNTs, and the controlled and responsive release strategies of drug-loaded TNTs, respectively. At the end of this review, the shortcomings of TNTs as the drug carrier in the field of bone implants are discussed, and the development direction of this research field is also prospected.
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11
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Chen Y, Zhou C, Xie Y, Xu A, Guan Y, Lu W, Wang X, He F. Zinc- and strontium- co-incorporated nanorods on titanium surfaces with favorable material property, osteogenesis, and enhanced antibacterial activity. J Biomed Mater Res B Appl Biomater 2021; 109:1754-1767. [PMID: 33871914 DOI: 10.1002/jbm.b.34834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 02/14/2021] [Accepted: 03/14/2021] [Indexed: 12/13/2022]
Abstract
Early infection and peri-implantitis after implant restoration are major reasons for dental implant failure. Implant-associated infections are majorly attributed to biofilm formation. In this study, co-incorporated zinc- (Zn-) and strontium- (Sr-) nanorod coating on sandblasted and acid-etched (SLA) titanium (SLA-Zn/Sr) was fabricated by hydrothermal synthesis. It was aimed at promoting osteogenesis while inhibiting biofilm formation. The nanorod-like particles (φ 30-50 nm) were found to be evenly formed on SLA-Zn/Sr (Zn: 1.49 ± 0.16 wt%; Sr: 21.69 ± 2.74 wt%) that was composed of well-crystallized ZnTiO3 and SrTiO3 phases. With a sufficient interface bonding strength (42.00 ± 3.00 MPa), SLA-Zn/Sr enhanced the corrosion resistance property of titanium. Besides, SLA-Zn/Sr promoted the cellular initial adhesion, proliferation and osteogenic differentiation of rBMSCs in vitro while inhibiting the adhesion of Staphylococcus aureus and Porphyromonas gingivalis . In addition, through down-regulating icaA gene expression, this novel surface reduced the secretion of polysaccharide intercellular adhesion (reduced by 87.9% compared to SLActive) to suppress the S. aureus biofilm formation. We, therefore, propose a new chemical modification on titanium for multifunctional implant material development. Due to the Zn/Sr co-doping in coating, material properties, early osteogenic effect and antibacterial ability of titanium can be simultaneously enhanced, which has the potential to be applied in dental implantation in the future.
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Affiliation(s)
- Yanqi Chen
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Chuan Zhou
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Yiwen Xie
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Antian Xu
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Ye Guan
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Wei Lu
- Department of Periodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Xiaoxiang Wang
- School of Materials Science and Engineering, Zhejiang University School of Materials Science and Engineering, Hangzhou, China
| | - Fuming He
- Department of Prosthodontics, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
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12
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Fometu SS, Wu G, Ma L, Davids JS. A review on the biological effects of nanomaterials on silkworm ( Bombyx mori). BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:190-202. [PMID: 33614385 PMCID: PMC7884877 DOI: 10.3762/bjnano.12.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
The production of high-quality silkworm silk is of importance in sericulture in addition to the production of biomass, silk proteins, and animal feed. The distinctive properties of nanomaterials have the potential to improve the development of various sectors including medicine, cosmetics, and agriculture. The application of nanotechnology in sericulture not only improves the survival rate of the silkworm, promotes the growth and development of silkworm, but also improves the quality of silk fiber. Despite the positive contributions of nanomaterials, there are a few concerns regarding the safety of their application to the environment, in humans, and in experimental models. Some studies have shown that some nanomaterials exhibit toxicity to tissues and organs of the silkworm, while other nanomaterials exhibit therapeutic properties. This review summarizes some reports on the biological effects of nanomaterials on silkworm and how the application of nanomaterials improves sericulture.
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Affiliation(s)
- Sandra Senyo Fometu
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Guohua Wu
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212018, PR China
| | - Lin Ma
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Joan Shine Davids
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
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Sarraf M, Nasiri-Tabrizi B, Yeong CH, Madaah Hosseini HR, Saber-Samandari S, Basirun WJ, Tsuzuki T. Mixed oxide nanotubes in nanomedicine: A dead-end or a bridge to the future? CERAMICS INTERNATIONAL 2021; 47:2917-2948. [PMID: 32994658 PMCID: PMC7513735 DOI: 10.1016/j.ceramint.2020.09.177] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 05/12/2023]
Abstract
Nanomedicine has seen a significant rise in the development of new research tools and clinically functional devices. In this regard, significant advances and new commercial applications are expected in the pharmaceutical and orthopedic industries. For advanced orthopedic implant technologies, appropriate nanoscale surface modifications are highly effective strategies and are widely studied in the literature for improving implant performance. It is well-established that implants with nanotubular surfaces show a drastic improvement in new bone creation and gene expression compared to implants without nanotopography. Nevertheless, the scientific and clinical understanding of mixed oxide nanotubes (MONs) and their potential applications, especially in biomedical applications are still in the early stages of development. This review aims to establish a credible platform for the current and future roles of MONs in nanomedicine, particularly in advanced orthopedic implants. We first introduce the concept of MONs and then discuss the preparation strategies. This is followed by a review of the recent advancement of MONs in biomedical applications, including mineralization abilities, biocompatibility, antibacterial activity, cell culture, and animal testing, as well as clinical possibilities. To conclude, we propose that the combination of nanotubular surface modification with incorporating sensor allows clinicians to precisely record patient data as a critical contributor to evidence-based medicine.
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Key Words
- ALP, Alkaline Phosphatase
- APH, Anodization-Cyclic Precalcification-Heat Treatment
- Ag2O NPs, Silver Oxide Nanoparticles
- AgNPs, Silver Nanoparticles
- Anodization
- BIC, Bone-Implant Contact
- Bioassays
- CAGR, Compound Annual Growth Rate
- CT, Computed Tomography
- DMF, Dimethylformamide
- DMSO, Dimethyl Sulfoxide
- DRI, Drug-Releasing Implants
- E. Coli, Escherichia Coli
- ECs, Endothelial Cells
- EG, Ethylene Glycol
- Electrochemistry
- FA, Formamide
- Fe2+, Ferrous Ion
- Fe3+, Ferric Ion
- Fe3O4, Magnetite
- GEP, Gene Expression Programming
- GO, Graphene Oxide
- HA, Hydroxyapatite
- HObs, Human Osteoblasts
- HfO2 NTs, Hafnium Oxide Nanotubes
- IMCs, Intermetallic Compounds
- LEDs, Light emitting diodes
- MEMS, Microelectromechanical Systems
- MONs, Mixed Oxide Nanotubes
- MOPSO, Multi-Objective Particle Swarm Optimization
- MSCs, Mesenchymal Stem Cells
- Mixed oxide nanotubes
- NMF, N-methylformamide
- Nanomedicine
- OPC1, Osteo-Precursor Cell Line
- PSIs, Patient-Specific Implants
- PVD, Physical Vapor Deposition
- RF, Radio-Frequency
- ROS, Radical Oxygen Species
- S. aureus, Staphylococcus Aureus
- S. epidermidis, Staphylococcus Epidermidis
- SBF, Simulated Body Fluid
- TiO2 NTs, Titanium Dioxide Nanotubes
- V2O5, Vanadium Pentoxide
- VSMCs, Vascular Smooth Muscle Cells
- XPS, X-ray Photoelectron Spectroscopy
- ZrO2 NTs, Zirconium Dioxide Nanotubes
- hASCs, Human Adipose-Derived Stem Cells
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Affiliation(s)
- Masoud Sarraf
- Centre of Advanced Materials, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
- Materials Science and Engineering Department, Sharif University of Technology, P.O. Box 11155-9466, Azadi Avenue, Tehran, Iran
| | - Bahman Nasiri-Tabrizi
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
- New Technologies Research Center, Amirkabir University of Technology, Tehran, Iran
| | - Chai Hong Yeong
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Hamid Reza Madaah Hosseini
- Materials Science and Engineering Department, Sharif University of Technology, P.O. Box 11155-9466, Azadi Avenue, Tehran, Iran
| | | | - Wan Jefrey Basirun
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Takuya Tsuzuki
- Research School of Electrical Energy and Materials Engineering, College of Engineering and Computer Science, Australian National University, Canberra, 2601, Australia
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Zakrzewski W, Dobrzynski M, Dobrzynski W, Zawadzka-Knefel A, Janecki M, Kurek K, Lubojanski A, Szymonowicz M, Rybak Z, Wiglusz RJ. Nanomaterials Application in Orthodontics. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:337. [PMID: 33525572 PMCID: PMC7912679 DOI: 10.3390/nano11020337] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/23/2021] [Accepted: 01/24/2021] [Indexed: 12/20/2022]
Abstract
Nanotechnology has gained importance in recent years due to its ability to enhance material properties, including antimicrobial characteristics. Nanotechnology is applicable in various aspects of orthodontics. This scientific work focuses on the concept of nanotechnology and its applications in the field of orthodontics, including, among others, enhancement of antimicrobial characteristics of orthodontic resins, leading to reduction of enamel demineralization or control of friction force during orthodontic movement. The latter one enables effective orthodontic treatment while using less force. Emphasis is put on antimicrobial and mechanical characteristics of nanomaterials during orthodontic treatment. The manuscript sums up the current knowledge about nanomaterials' influence on orthodontic appliances.
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Affiliation(s)
- Wojciech Zakrzewski
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida 44, 50-345 Wroclaw, Poland; (W.Z.); (A.L.); (M.S.); (Z.R.)
| | - Maciej Dobrzynski
- Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland
| | - Wojciech Dobrzynski
- Student Scientific Circle at the Department of Dental Materials, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Akademicki Sq. 17, 41-902 Bytom, Poland;
| | - Anna Zawadzka-Knefel
- Department of Conservative Dentistry and Endodontics Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland;
| | - Mateusz Janecki
- Department of Maxillofacial Surgery, Mikulicz Radecki’s University Hospital, Borowska 213, 50-556 Wroclaw, Poland;
| | | | - Adam Lubojanski
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida 44, 50-345 Wroclaw, Poland; (W.Z.); (A.L.); (M.S.); (Z.R.)
| | - Maria Szymonowicz
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida 44, 50-345 Wroclaw, Poland; (W.Z.); (A.L.); (M.S.); (Z.R.)
| | - Zbigniew Rybak
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida 44, 50-345 Wroclaw, Poland; (W.Z.); (A.L.); (M.S.); (Z.R.)
| | - Rafal J. Wiglusz
- International Institute of Translational Medicine, Jesionowa 11 St., 55–124 Malin, Poland
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland
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Wei X, Li Q, Wu C, Sun T, Li X. Preparation, characterization and antibacterial mechanism of the chitosan coatings modified by Ag/ZnO microspheres. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:5527-5538. [PMID: 32567068 DOI: 10.1002/jsfa.10605] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/09/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND To improve the physicochemical and antibacterial properties of coatings, the chitosan (CS) coatings were respectively prepared by a casting method with zinc oxide (ZnO) and silver (Ag)/ZnO microspheres as modifiers. The chemical structures and micromorphology of ZnO, Ag/ZnO microspheres and CS coatings were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy. Furthermore, using the dominant spoilage bacteria of aquatic products, Shewanella putrefaciens and Pseudomonas aeruginosa, as objects, the antibacterial activities and mechanism of the CS coatings were investigated. RESULTS The results show that ZnO and Ag/ZnO microspheres are dispersed homogeneously in the CS coatings. After modified by ZnO and Ag/ZnO microspheres, the mechanical properties and antibacterial abilities of the CS coatings are improved, and that of 0.5% Ag/ZnO-CS coating is the optimal. For pure CS coating, the bacterial cell membrane is damaged slightly because of the electrostatic interaction between NH3+ of CS and the negative charge on bacterial surface. After treated by ZnO-CS composite coating, the bacterial cell membrane is destroyed badly on account of the earlier-mentioned ion interaction and disturbing the synthesis of high molecular weight total protein. CONCLUSION With regard to Ag/ZnO-CS composite coating, the bacterial cell membrane is damaged seriously and cell contents are completely released due to ion interaction, disturbing the synthesis of high molecular weight total protein and low molecular weight membrane protein. Hence, Ag/ZnO-CS composite coatings are antimicrobial materials and food preservative materials with great potential application. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xuqing Wei
- College of Food Science and Engineering, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou, China
| | - Qiuying Li
- College of Food Science and Engineering, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou, China
| | - Chaoling Wu
- College of Food Science and Engineering, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou, China
- Jiangxi Jiangteng Environmental Testing Technology Co., Ltd., Shangrao, China
| | - Tong Sun
- College of Food Science and Engineering, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou, China
| | - Xuepeng Li
- College of Food Science and Engineering, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou, China
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Bonilla-Represa V, Abalos-Labruzzi C, Herrera-Martinez M, Guerrero-Pérez MO. Nanomaterials in Dentistry: State of the Art and Future Challenges. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1770. [PMID: 32906829 PMCID: PMC7557393 DOI: 10.3390/nano10091770] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/21/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023]
Abstract
Nanomaterials are commonly considered as those materials in which the shape and molecular composition at a nanometer scale can be controlled. Subsequently, they present extraordinary properties that are being useful for the development of new and improved applications in many fields, including medicine. In dentistry, several research efforts are being conducted, especially during the last decade, for the improvement of the properties of materials used in dentistry. The objective of the present article is to offer the audience a complete and comprehensive review of the main applications that have been developed in dentistry, by the use of these materials, during the last two decades. It was shown how these materials are improving the treatments in mainly all the important areas of dentistry, such as endodontics, periodontics, implants, tissue engineering and restorative dentistry. The scope of the present review is, subsequently, to revise the main applications regarding nano-shaped materials in dentistry, including nanorods, nanofibers, nanotubes, nanospheres/nanoparticles, and zeolites and other orders porous materials. The results of the bibliographic analysis show that the most explored nanomaterials in dentistry are graphene and carbon nanotubes, and their derivatives. A detailed analysis and a comparative study of their applications show that, although they are quite similar, graphene-based materials seem to be more promising for most of the applications of interest in dentistry. The bibliographic study also demonstrated the potential of zeolite-based materials, although the low number of studies on their applications shows that they have not been totally explored, as well as other porous nanomaterials that have found important applications in medicine, such as metal organic frameworks, have not been explored. Subsequently, it is expected that the research effort will concentrate on graphene and zeolite-based materials in the coming years. Thus, the present review paper presents a detailed bibliographic study, with more than 200 references, in order to briefly describe the main achievements that have been described in dentistry using nanomaterials, compare and analyze them in a critical way, with the aim of predicting the future challenges.
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Affiliation(s)
- Victoria Bonilla-Represa
- Departamento de Operatoria Dental y Endodoncia, Universidad de Sevilla, E-41009 Sevilla, Spain; (V.B.-R.); (M.H.-M.)
| | | | - Manuela Herrera-Martinez
- Departamento de Operatoria Dental y Endodoncia, Universidad de Sevilla, E-41009 Sevilla, Spain; (V.B.-R.); (M.H.-M.)
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17
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Advances in Antibacterial Functionalized Coatings on Mg and Its Alloys for Medical Use—A Review. COATINGS 2020. [DOI: 10.3390/coatings10090828] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As a revolutionary implant material, magnesium and its alloys have many exciting performances, such as biodegradability, mechanical compatibility, and excellent biosecurity. However, the rapid and uncontrollable degradation rate of magnesium greatly hampers its clinical use. Many efforts have been taken to enhance the corrosion resistance of magnesium. However, it must be noted that improving the corrosion resistance of magnesium will lead to the compromise of its antibacterial abilities, which are attribute and proportional to the alkaline pH during its degradation. Providing antibacterial functionalized coating is one of the best methods for balancing the degradation rate and the antibacterial ability of magnesium. Antibacterial functionalized magnesium is especially well-suited for patients with diabetes and infected wounds. Considering the extremely complex biological environment in the human body and the demands of enhancing corrosion resistance, biocompatibility, osteogenesis, and antibacterial ability, composite coatings with combined properties of different materials may be promising. The aim of this review isto collect and compare recent studies on antibacterial functionalized coatings on magnesium and its alloys. The clinical applications of antibacterial functionalized coatings and their material characteristics, antibacterial abilities, in vitro cytocompatibility, and corrosion resistance are also discussed in detail.
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18
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Feng E, Shen K, Lin F, Lin W, Zhang T, Zhang Y, Lin F, Yang Y, Lin C. Improved osteogenic activity and inhibited bacterial biofilm formation on andrographolide-loaded titania nanotubes. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:987. [PMID: 32953787 PMCID: PMC7475475 DOI: 10.21037/atm-20-4901] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background Delivery of local drugs with a titania nanotube is an attractive approach to combat implant-related infection. Our earlier study has confirmed that nanotubes loaded with gentamicin could significantly improve the antibacterial ability. On this basis, the used andrographolide in this paper has a high antibacterial activity, which cannot only avoid the evolution of antibiotic-resistant bacteria but also has simultaneously excellent biocompatibility with osteogenic cells. Methods Two mg of andrographolide was loaded into titania nanotubes, which were fabricated into different diameters (50 and 100 nm) and 200 nm length by the method of lyophilization and vacuum drying. We chose a standard strain, Staphylococcus epidermidis (American Type Culture Collection 35984), and two clinical isolates, S. aureus 376 and S. epidermidis 389 to research the bacterial adhesion at 6, 12 and 24 hours and biofilm formation at 48, and 72 hours on the andrographolide-loaded nanotubes (NT-A) using the diffusion plate method. Smooth titanium (smooth Ti) and nanotubes with no drug loading (NT) were also inclusive and analyzed. Furthermore, the Sprague-Dawley (SD) rats mesenchymal stem cells were used to assess the influence of nanotubular topographies on the osteogenic differentiation of mesenchymal stem cells. Results Our results showed that NT-A could inhibit bacterial adhesion and biofilm formation on implant surfaces. NT-A and NT, especially those with 100 nm diameters, were found to significantly promoted cell attachment, proliferation, diffusion, and osteogenic differentiation when compared with smooth Ti, while the same diameter in NT-A and NT did not differ. Conclusions Titania nanotube modification and andrographolide loading can significantly improve the antibacterial ability and osteogenic activity of orthopedic implants. Nanotubes-based local delivery could be a promising strategy for combating implant-associated infection.
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Affiliation(s)
- Eryou Feng
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Kaiwei Shen
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Feitai Lin
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Wentao Lin
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Tao Zhang
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Yiyuan Zhang
- Department of Arthrosis Surgery, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Fengfei Lin
- Department of Orthopaedics, Fuzhou Second Hospital Affiliated to Xiamen University, Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Yun Yang
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University, Xiamen, China
| | - Changjian Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
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Ion R, Necula MG, Mazare A, Mitran V, Neacsu P, Schmuki P, Cimpean A. Drug Delivery Systems Based on Titania Nanotubes and Active Agents for Enhanced Osseointegration of Bone Implants. Curr Med Chem 2020; 27:854-902. [PMID: 31362646 DOI: 10.2174/0929867326666190726123229] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 01/16/2019] [Accepted: 05/04/2019] [Indexed: 12/31/2022]
Abstract
TiO2 nanotubes (TNTs) are attractive nanostructures for localized drug delivery. Owing to their excellent biocompatibility and physicochemical properties, numerous functionalizations of TNTs have been attempted for their use as therapeutic agent delivery platforms. In this review, we discuss the current advances in the applications of TNT-based delivery systems with an emphasis on the various functionalizations of TNTs for enhancing osteogenesis at the bone-implant interface and for preventing implant-related infection. Innovation of therapies for enhancing osteogenesis still represents a critical challenge in regeneration of bone defects. The overall concept focuses on the use of osteoconductive materials in combination with the use of osteoinductive or osteopromotive factors. In this context, we highlight the strategies for improving the functionality of TNTs, using five classes of bioactive agents: growth factors (GFs), statins, plant derived molecules, inorganic therapeutic ions/nanoparticles (NPs) and antimicrobial compounds.
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Affiliation(s)
- Raluca Ion
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Madalina Georgiana Necula
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Anca Mazare
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patricia Neacsu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patrik Schmuki
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
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20
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A Review of In-Situ Grown Nanocomposite Coatings for Titanium Alloy Implants. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020041] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Composite coatings are commonly applied to medical metal implants in order to improve biocompatibility and/or bioactivity. In this context, two types of titanium-based composite coatings have been reviewed as biocompatible and anti-bacterial coatings. The different composites can be synthesised on the surface of titanium using various methods, which have their own advantages and disadvantages. Moving with the smart and nanotechnology, multifunctional nanocomposite coatings have been introduced on implants and scaffolds for tissue engineering with the aim of providing more than one properties when required. In this context, titanium dioxide (TiO2) nanotubes have been shown to enhance the properties of titanium-based implants as part of nanocomposite coatings.
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21
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Gao S, Lu R, Wang X, Chou J, Wang N, Huai X, Wang C, Zhao Y, Chen S. Immune response of macrophages on super-hydrophilic TiO2 nanotube arrays. J Biomater Appl 2020; 34:1239-1253. [DOI: 10.1177/0885328220903249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shang Gao
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Ran Lu
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Xin Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Joshua Chou
- Advanced Tissue Regeneration and Drug Delivery Group, School of Life Sciences, University of Technology Sydney, Sydney, Australia
| | - Na Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Xiaochen Huai
- Laboratory of Advanced Functional Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Caiyun Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Yu Zhao
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Su Chen
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
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Carrouel F, Viennot S, Ottolenghi L, Gaillard C, Bourgeois D. Nanoparticles as Anti-Microbial, Anti-Inflammatory, and Remineralizing Agents in Oral Care Cosmetics: A Review of the Current Situation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E140. [PMID: 31941021 PMCID: PMC7022934 DOI: 10.3390/nano10010140] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/22/2019] [Accepted: 01/10/2020] [Indexed: 12/29/2022]
Abstract
Many investigations have pointed out widespread use of medical nanosystems in various domains of dentistry such as prevention, prognosis, care, tissue regeneration, and restoration. The progress of oral medicine nanosystems for individual prophylaxis is significant for ensuring bacterial symbiosis and high-quality oral health. Nanomaterials in oral cosmetics are used in toothpaste and other mouthwash to improve oral healthcare performance. These processes cover nanoparticles and nanoparticle-based materials, especially domains of application related to biofilm management in cariology and periodontology. Likewise, nanoparticles have been integrated in diverse cosmetic produces for the care of enamel remineralization and dental hypersensitivity. This review summarizes the indications and applications of several widely employed nanoparticles in oral cosmetics, and describes the potential clinical implementation of nanoparticles as anti-microbial, anti-inflammatory, and remineralizing agents in the prevention of dental caries, hypersensitivity, and periodontitis.
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Affiliation(s)
- Florence Carrouel
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (S.V.); (D.B.)
| | - Stephane Viennot
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (S.V.); (D.B.)
| | - Livia Ottolenghi
- Department of Oral and Maxillo-facial Sciences, Sapienza University of Rome, 00185 Rome, Italy;
| | - Cedric Gaillard
- Institut national de Recherche en Agriculture, Alimentation et Environnement (INRAE), Unité de Recherche 1268 Biopolymères Interactions Assemblages (BIA), 44316 Nantes, France;
| | - Denis Bourgeois
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (S.V.); (D.B.)
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Bilek O, Fialova T, Otahal A, Adam V, Smerkova K, Fohlerova Z. Antibacterial activity of AgNPs–TiO 2 nanotubes: influence of different nanoparticle stabilizers. RSC Adv 2020; 10:44601-44610. [PMID: 35517148 PMCID: PMC9058477 DOI: 10.1039/d0ra07305a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/01/2020] [Indexed: 01/22/2023] Open
Abstract
Enhanced antibacterial properties of nanomaterials such as TiO2 nanotubes (TNTs) and silver nanoparticles (AgNPs) have attracted much attention in biomedicine and industry. The antibacterial properties of nanoparticles depend, among others, on the functionalization layer of the nanoparticles. However, the more complex information about the influence of different functionalization layers on antibacterial properties of nanoparticle decorated surfaces is still missing. Here we show the array of ∼50 nm diameter TNTs decorated with ∼50 nm AgNPs having different functionalization layers such as polyvinylpyrrolidone, branched polyethyleneimine, citrate, lipoic acid, and polyethylene glycol. To assess the antibacterial properties, the viability of Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) has been assessed. Our results showed that the functional layer of nanoparticles plays an important role in antibacterial properties and the synergistic effect such nanoparticles and TiO2 nanotubes have had different effects on adhesion and viability of G− and G+ bacteria. These findings could help researchers to optimally design any surfaces to be used as an antibacterial including the implantable titanium biomaterials. Synergictic antibacterial effect of AgNPs–TiO2 nanotubes is influenced by different nanoparticle stabilizers.![]()
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Affiliation(s)
- Ondrej Bilek
- Central European Institute of Technology
- Brno University of Technology
- Brno
- Czech Republic
| | - Tatiana Fialova
- Department of Chemistry and Biochemistry
- Mendel University in Brno
- Brno
- Czech Republic
| | - Alexandr Otahal
- Department of Microelectronics
- Brno University of Technology
- Brno
- Czech Republic
| | - Vojtech Adam
- Central European Institute of Technology
- Brno University of Technology
- Brno
- Czech Republic
- Department of Chemistry and Biochemistry
| | - Kristyna Smerkova
- Central European Institute of Technology
- Brno University of Technology
- Brno
- Czech Republic
- Department of Chemistry and Biochemistry
| | - Zdenka Fohlerova
- Central European Institute of Technology
- Brno University of Technology
- Brno
- Czech Republic
- Department of Microelectronics
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Makvandi P, Gu JT, Zare EN, Ashtari B, Moeini A, Tay FR, Niu LN. Polymeric and inorganic nanoscopical antimicrobial fillers in dentistry. Acta Biomater 2020; 101:69-101. [PMID: 31542502 DOI: 10.1016/j.actbio.2019.09.025] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/26/2019] [Accepted: 09/17/2019] [Indexed: 02/08/2023]
Abstract
Failure of dental treatments is mainly due to the biofilm accumulated on the dental materials. Many investigations have been conducted on the advancements of antimicrobial dental materials. Polymeric and inorganic nanoscopical agents are capable of inhibiting microorganism proliferation. Applying them as fillers in dental materials can achieve enhanced microbicidal ability. The present review provides a broad overview on the state-of-the-art research in the field of antimicrobial fillers which have been adopted for incorporation into dental materials over the last 5 years. The antibacterial agents and applications are described, with the aim of providing information for future investigations. STATEMENT OF SIGNIFICANCE: Microbial infection is the primary cause of dental treatment failure. The present review provides an overview on the state-of-art in the field of antimicrobial nanoscopical or polymeric fillers that have been applied in dental materials. Trends in the biotechnological development of these antimicrobial fillers over the last 5 years are reviewed to provide a backdrop for further advancement in this field of research.
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Hu C, Wang L, Lin Y, Liang H, Zhou S, Zheng F, Feng X, Rui Y, Shao L. Nanoparticles for the Treatment of Oral Biofilms: Current State, Mechanisms, Influencing Factors, and Prospects. Adv Healthc Mater 2019; 8:e1901301. [PMID: 31763779 DOI: 10.1002/adhm.201901301] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/31/2019] [Indexed: 02/06/2023]
Abstract
Due to their excellent size, designability, and outstanding targeted antibacterial effects, nanoparticles have become a potential option for controlling oral biofilm-related infections. However, the formation of an oral biofilm is a dynamic process, and factors affecting the performance of antibiofilm treatments are complex. As such, when examining the existing literature on the antibiofilm effects of nanoparticles, attention should be paid to the specific mechanisms of action at different stages of oral biofilm formation, as well as relevant influencing factors, in order to achieve an objective and comprehensive evaluation. This review is intended to detail the antibacterial mechanisms of nanoparticles during the four stages of the formation of oral biofilms: 1) acquired film formation; 2) bacterial adhesion; 3) early biofilm development; and 4) biofilm maturation. In addition, factors influencing the antibiofilm properties of nanoparticles are summarized from the aspects of nanoparticles themselves, biofilm models, and host factors. The limitations of current research and possible trends for future research are also discussed. In summary, nanoparticles are a promising antioral biofilm strategy. It is hoped that this review can serve as a reference and inspire ideas for further research on the application of nanoparticles for effectively targeting and treating oral biofilms.
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Affiliation(s)
- Chen Hu
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Lin‐Lin Wang
- Department of StomatologyHainan General Hospital Haikou Hainan 570311 China
| | - Yu‐Qing Lin
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Hui‐Min Liang
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Shan‐Yu Zhou
- Department of StomatologyThe People's Hospital of Longhua Shenzhen 518109 China
| | - Fen Zheng
- Laboratory Medicine CenterNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Laboratory MedicineFoshan Women and Children Hospital Foshan Guangdong 528000 China
| | - Xiao‐Li Feng
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Yong‐Yu Rui
- Laboratory Medicine CenterNanfang HospitalSouthern Medical University Guangzhou 510515 China
| | - Long‐Quan Shao
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
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Corrosion resistance and antibacterial activity of zinc-loaded montmorillonite coatings on biodegradable magnesium alloy AZ31. Acta Biomater 2019; 98:196-214. [PMID: 31154057 DOI: 10.1016/j.actbio.2019.05.069] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/21/2019] [Accepted: 05/28/2019] [Indexed: 12/28/2022]
Abstract
A Zinc-loaded montmorillonite (Zn-MMT) coating was hydrothermally prepared using Zn2+ ion intercalated sodium montmorillonite (Na-MMT) upon magnesium (Mg) alloy AZ31 as bone repairing materials. Biodegradation rate of the Mg-based materials was studied via potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and hydrogen evolution tests. Results revealed that both Na-MMT and Zn-MMT coatings exhibited better corrosion resistance in Dulbecco's modified eagle medium (DMEM) + 10% calf serum (CS) than bare Mg alloy AZ31 counterparts. Hemolysis results demonstrated that hemocompatibility of the Na-MMT and Zn-MMT coatings were 5%, and lower than that of uncoated Mg alloy AZ31 pieces. In vitro MTT tests and live-dead stain of osteoblast cells (MC3T3-E1) indicated a significant improvement in cytocompatibility of both Na-MMT and Zn-MMT coatings. Antibacterial properties of two representative bacterial strains associated with device-related infection, i.e. Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), were employed to explore the antibacterial behavior of the coatings. The measured inhibitory zone and bacterial growth rate confirmed that Zn-MMT coatings exhibited higher suppression toward both E. coli and S. aureus than that of Na-MMT coatings. The investigation on antibacterial mechanism through scanning electron microscopy (SEM) and lactate dehydrogenase (LDH) release assay manifested that Zn-MMT coating led to severe breakage of bacterial membrane of E. coli and S. aureus, which resulted in a release of cytoplasmic materials from the bacterial cells. In addition, the good inhibition of Zn-MMT coatings against E. coli and S. aureus might be attributed to the slow but sustainable release of Zn2+ ions (up to 144 h) from the coatings into the culture media. This study provides a novel coating strategy for manufacturing biodegradable Mg alloys with good corrosion resistance, biocompatibility and antibacterial activity for future orthopedic applications. STATEMENT OF SIGNIFICANCE: The significance of the current work is to develop a corrosion-resistant and antibacterial Zn-MMT coating on magnesium alloy AZ31 through a hydrothermal method. The Zn-MMT coating on magnesium alloy AZ31 shows better corrosion resistance, biocompatibility and excellent antibacterial ability than magnesium alloy AZ31. This study provides a novel coating on Mg alloys for future orthopedic applications.
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Nano-scale modification of titanium implant surfaces to enhance osseointegration. Acta Biomater 2019; 94:112-131. [PMID: 31128320 DOI: 10.1016/j.actbio.2019.05.045] [Citation(s) in RCA: 222] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 12/16/2022]
Abstract
The main aim of this review study was to report the state of art on the nano-scale technological advancements of titanium implant surfaces to enhance the osseointegration process. Several methods of surface modification are chronologically described bridging ordinary methods (e.g. grit blasting and etching) and advanced physicochemical approaches such as 3D-laser texturing and biomimetic modification. Functionalization procedures by using proteins, peptides, and bioactive ceramics have provided an enhancement in wettability and bioactivity of implant surfaces. Furthermore, recent findings have revealed a combined beneficial effect of micro- and nano-scale modification and biomimetic functionalization of titanium surfaces. However, some technological developments of implant surfaces are not commercially available yet due to costs and a lack of clinical validation for such recent surfaces. Further in vitro and in vivo studies are required to endorse the use of enhanced biomimetic implant surfaces. STATEMENT OF SIGNIFICANCE: Grit-blasting followed by acid-etching is currently used for titanium implant modifications, although recent technological biomimetic physicochemical methods have revealed enhanced osteoconductive and anti-microbial outcomes. An improvement in wettability and bioactivity of titanium implant surfaces has been accomplished by combining micro and nano-scale modification and functionalization with protein, peptides, and bioactive compounds. Such morphological and chemical modification of the titanium surfaces induce the migration and differentiation of osteogenic cells followed by an enhancement of the mineral matrix formation that accelerate the osseointegration process. Additionally, the incorporation of bioactive molecules into the nanostructured surfaces is a promising strategy to avoid early and late implant failures induced by the biofilm accumulation.
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Li N, Luo Z, Zeng C, Chen L, Yang H, Gong S. Antibacterial activity and possible mechanisms of one-step synthetic laminated flower-like nickelous(II) hydroxide. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0965-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Shang P, Chen G, Zu G, Song X, Jiao P, You G, Zhao J, Li H, Zhou H. Long noncoding RNA expression analysis reveals the regulatory effects of nitinol-based nanotubular coatings on human coronary artery endothelial cells. Int J Nanomedicine 2019; 14:3297-3309. [PMID: 31190794 PMCID: PMC6519025 DOI: 10.2147/ijn.s204067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 04/04/2019] [Indexed: 11/24/2022] Open
Abstract
Background: Cardiovascular disease (CVD) is the leading cause of mortality all over the world. Vascular stents are used to ameliorate vascular stenosis and recover vascular function. The application of nanotubular coatings has been confirmed to promote endothelial cell (EC) proliferation and function. However, the regulatory mechanisms involved in cellular responses to the nanotubular topography have not been defined. In the present study, a microarray analysis was performed to explore the expression patterns of long noncoding RNAs (lncRNAs) in human coronary artery endothelial cells (HCAECs) that were differentially expressed in response to nitinol-based nanotubular coatings. Materials and methods: First, anodization was performed to synthesize nitinol-based nanotubular coatings. Then, HCAECs were cultured on the samples for 24 h to evaluate cell cytoskeleton organization. Next, total RNA was extracted and synthesized into cRNA, which was hybridized onto the microarray. GO analysis and KEGG pathway analysis were performed to investigate the roles of differentially expressed messenger RNAs (mRNAs). Quantitative real-time reverse-transcription polymerase chain reaction (qRT-PCR) was performed to validate the expression of randomly selected lncRNAs. Coexpression networks were created to identify the interactions among lncRNAs and the protein-coding genes involved in nanotubular topography-induced biological and molecular pathways. Independent Student’s t-test was applied for comparisons between two groups with statistical significance set at p<0.05. Results: 1085 lncRNAs and 227 mRNAs were significantly differentially expressed in the nitinol-based nanotubular coating group. Bioinformatics analysis revealed that extracellular matrix receptor interactions and cell adhesion molecules play critical roles in the sensing of nitinol-based nanotubular coatings by HCAECs. The TATA-binding protein (TBP) and TBP-associated transfactor 1 (TAF1) are important molecules in EC responses to substrate topography. Conclusion: This study suggests that nanotubular substrate topography regulates ECs by differentially expressed lncRNAs involved extracellular matrix receptor interactions and cell adhesion molecules.
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Affiliation(s)
- Pan Shang
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
| | - Gan Chen
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
| | - Guannan Zu
- Photoelectrochemical Research Group, School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Xiang Song
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
| | - Peng Jiao
- Photoelectrochemical Research Group, School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Guoxing You
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
| | - Jingxiang Zhao
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
| | - Hongyi Li
- Photoelectrochemical Research Group, School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Hong Zhou
- Academy of Military Medical Sciences, Institute of Health Service and Transfusion Medicine, Beijing 100850, People's Republic of China
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A hierarchical integration pyramid to increase translation of biomaterials based on recent successes in multiscale synthetic biomaterials research. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2019. [DOI: 10.1016/j.cobme.2019.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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31
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Gunputh UF, Le H, Besinis A, Tredwin C, Handy RD. Multilayered composite coatings of titanium dioxide nanotubes decorated with zinc oxide and hydroxyapatite nanoparticles: controlled release of Zn and antimicrobial properties against Staphylococcus aureus. Int J Nanomedicine 2019; 14:3583-3600. [PMID: 31190813 PMCID: PMC6529028 DOI: 10.2147/ijn.s199219] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/21/2019] [Indexed: 12/28/2022] Open
Abstract
Purpose: This study aimed to decorate the surface of TiO2 nanotubes (TiO2 NTs) grown on medical grade Ti-6Al-4V alloy with an antimicrobial layer of nano zinc oxide particles (nZnO) and then determine if the antimicrobial properties were maintained with a final layer of nano-hydroxyapatite (HA) on the composite. Methods: The additions of nZnO were attempted at three different annealing temperatures: 350, 450 and 550 °C. Of these temperatures, 350°C provided the most uniform and nanoporous coating and was selected for antimicrobial testing. Results: The LIVE/DEAD assay showed that ZnCl2 and nZnO alone were >90% biocidal to the attached bacteria, and nZnO as a coating on the nanotubes resulted in around 70% biocidal activity. The lactate production assay agreed with the LIVE/DEAD assay. The concentrations of lactate produced by the attached bacteria on the surface of nZnO-coated TiO2 NTs and ZnO/HA-coated TiO2 NTs were 0.13±0.03 mM and 0.37±0.1 mM, respectively, which was significantly lower than that produced by the bacteria on TiO2 NTs alone, 1.09±0.30 mM (Kruskal–Wallis, P<0.05, n=6). These biochemical measurements were correlated with electron micrographs of cell morphology and cell coverage on the coatings. Conclusion: nZnO on TiO2 NTs was a stable and antimicrobial coating, and most of the biocidal properties remained in the presence of nano-HA on the coating.
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Affiliation(s)
- Urvashi F Gunputh
- School of Mechanical Engineering and Built Environment, University of Derby, Derby DE22 3AW, UK.,School of Engineering, Plymouth University, Plymouth PL4 8AA, UK
| | - Huirong Le
- School of Mechanical Engineering and Built Environment, University of Derby, Derby DE22 3AW, UK
| | | | - Christopher Tredwin
- Peninsula Schools of Medicine and Dentistry, Plymouth University, Plymouth, Devon PL6 8BU, UK
| | - Richard D Handy
- School of Biological & Marine Sciences, Plymouth University, Plymouth PL4 8AA, UK
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Enhanced corrosion resistance of zinc-containing nanowires-modified titanium surface under exposure to oxidizing microenvironment. J Nanobiotechnology 2019; 17:55. [PMID: 30992009 PMCID: PMC6466780 DOI: 10.1186/s12951-019-0488-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 04/09/2019] [Indexed: 12/19/2022] Open
Abstract
Titanium (Ti) and its alloys as bio-implants have excellent biocompatibilities and osteogenic properties after modification of chemical composition and topography via various methods. The corrosion resistance of these modified materials is of great importance for changing oral system, while few researches have reported this point. Recently, oxidative corrosion induced by cellular metabolites has been well concerned. In this study, we explored the corrosion behaviors of four common materials (commercially pure Ti, cp-Ti; Sandblasting and acid etching-modified Ti, Ti-SLA; nanowires-modified Ti, Ti-NW; and zinc-containing nanowires-modified Ti, Ti-NW-Zn) with excellent biocompatibilities and osteogenic capacities under the macrophages induced-oxidizing microenvironment. The results showed that the materials immersed into a high oxidizing environment were more vulnerable to corrode. Meanwhile, different surfaces also showed various corrosion susceptibilities under oxidizing condition. Samples embed with zinc element exhibited more excellent corrosion resistance compared with other three surfaces exposure to excessive H2O2. Besides, we found that zinc-decorated Ti surfaces inhibited the adhesion and proliferation of macrophages on its surface and induced the M2 states of macrophages to better healing and tissue reconstruction. Most importantly, zinc-decorated Ti surfaces markedly increased the expressions of antioxidant enzyme relative genes in macrophages. It improved the oxidation microenvironment around the materials and further protected their properties. In summary, our results demonstrated that Ti-NW-Zn surfaces not only provided excellent corrosion resistance properties, but also inhibited the adhesion of macrophages. These aspects were necessary for maintaining osseointegration capacity and enhancing the corrosion resistance of Ti in numerous medical applications, particularly in dentistry.
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Enhanced antibacterial and anticancer properties of Se-NPs decorated TiO2 nanotube film. PLoS One 2019; 14:e0214066. [PMID: 30901347 PMCID: PMC6430414 DOI: 10.1371/journal.pone.0214066] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/06/2019] [Indexed: 11/26/2022] Open
Abstract
Selenium nanoparticle modified surfaces attract increasing attention in the field of tissue engineering. Selenium exhibits strong anticancer, antibacterial and anti-inflammatory properties and it maintains relatively low off-target cytotoxicity. In our paper, we present the fabrication, characterization and cytocompatibility of titanium oxide (TiO2) nanotube surface decorated with various surface densities of chemically synthesized selenium nanoparticles. To evaluate antibacterial and anti-cancer properties of such nanostructured surface, gram negative bacteria E. coli, cancerous osteoblast like MG-63 cells and non-cancerous fibroblast NIH/3T3 were cultured on designed surfaces. Our results suggested that selenium nanoparticles improved antibacterial properties of titanium dioxide nanotubes and confirmed the anticancer activity towards MG-63 cells, with increasing surface density of nanoparticles. Further, the selenium decorated TiO2 nanotubes suggested deteriorating effect on the cell adhesion and viability of non-cancerous NIH/3T3 cells. Thus, we demonstrated that selenium nanoparticles decorated TiO2 nanotubes synthesized using sodium selenite and glutathione can be used to control bacterial infections and prevent the growth of cancerous cells. However, the higher surface density of nanoparticles adsorbed on the surface was found to be cytotoxic for non-cancerous NIH/3T3 cells and thus it might complicate the integration of biomaterial into the host tissue. Therefore, an optimal surface density of selenium nanoparticles must be found to effectively kill bacteria and cancer cells, while remaining favorable for normal cells.
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Song W, Ge S. Application of Antimicrobial Nanoparticles in Dentistry. Molecules 2019; 24:E1033. [PMID: 30875929 PMCID: PMC6470852 DOI: 10.3390/molecules24061033] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/03/2019] [Accepted: 03/08/2019] [Indexed: 02/04/2023] Open
Abstract
Oral cavity incessantly encounters a plethora of microorganisms. Plaque biofilm-a major cause of caries, periodontitis and other dental diseases-is a complex community of bacteria or fungi that causes infection by protecting pathogenic microorganisms from external drug agents and escaping the host defense mechanisms. Antimicrobial nanoparticles are promising because of several advantages such as ultra-small sizes, large surface-area-to-mass ratio and special physical and chemical properties. To better summarize explorations of antimicrobial nanoparticles and provide directions for future studies, we present the following critical review. The keywords "nanoparticle," "anti-infective or antibacterial or antimicrobial" and "dentistry" were retrieved from Pubmed, Scopus, Embase and Web of Science databases in the last five years. A total of 172 articles met the requirements were included and discussed in this review. The results show that superior antibacterial properties of nanoparticle biomaterials bring broad prospects in the oral field. This review presents the development, applications and underneath mechanisms of antibacterial nanoparticles in dentistry including restorative dentistry, endodontics, implantology, orthodontics, dental prostheses and periodontal field.
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Affiliation(s)
- Wenjing Song
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan 250012, China.
- Department of Periodontology, School of Stomatology, Shandong University, Jinan 250012, China.
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan 250012, China.
- Department of Periodontology, School of Stomatology, Shandong University, Jinan 250012, China.
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Nieto-Aguilar R, Serrato-Ochoa D, Medina-Navarro R, Aguilera-Méndez A, Morales-Soto KD, Loyola-Rodriguez JP, Campos A, Alaminos M. In vitro retention efficiency of temporary type zinc oxide cement for orthodontic forced eruption. Int Orthod 2019; 17:96-102. [PMID: 30772354 DOI: 10.1016/j.ortho.2019.01.020] [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: 10/27/2022]
Abstract
OBJECTIVE To assess the retention efficiency of three types of temporary zinc oxide cement trademarks on forced eruption using intracranal wire device. METHODS An in vitro evaluation included intracanal wire device displacement and detachment at 50g load force for 120 days and then the retention resistance at maximum load force. RESULTS All groups of temporary zinc oxide cements were efficient to support 50g load forces after 120 days. None statistical differences were found between groups. Zinc oxide cements supported a maximum retention load force, which exceeded in more than 84 times the lowest value obtained in controls (420g). CONCLUSION Zinc oxide cements are efficient to retain intracanal wire devices on forced eruption processes in vitro and allows removal of both when necessary (wire device and cement, respectively).
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Affiliation(s)
- Renato Nieto-Aguilar
- Universidad Michoacana de San Nicolás de Hidalgo, Faculty of Odontology, Postgraduate Studies Division, Morelia, Michoacán, Mexico.
| | - Deyanira Serrato-Ochoa
- Universidad Michoacana de San Nicolás de Hidalgo, Faculty of Odontology, Postgraduate Studies Division, Morelia, Michoacán, Mexico
| | | | - Asdrúbal Aguilera-Méndez
- Chemical and Biological Investigation Institute, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, Mexico
| | - Karina Denisse Morales-Soto
- Universidad Michoacana de San Nicolás de Hidalgo, Faculty of Odontology, Postgraduate Studies Division, Morelia, Michoacán, Mexico
| | | | - Antonio Campos
- University of Granada, Faculty of Medicine and Faculty of Odontology, Granada, Spain
| | - Miguel Alaminos
- University of Granada, Faculty of Medicine and Faculty of Odontology, Granada, Spain
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Chouirfa H, Bouloussa H, Migonney V, Falentin-Daudré C. Review of titanium surface modification techniques and coatings for antibacterial applications. Acta Biomater 2019; 83:37-54. [PMID: 30541702 DOI: 10.1016/j.actbio.2018.10.036] [Citation(s) in RCA: 434] [Impact Index Per Article: 86.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/09/2018] [Accepted: 10/23/2018] [Indexed: 02/07/2023]
Abstract
Implanted biomaterials play a key role in the current success of orthopedic and dental procedures. Pure titanium and its alloys are the most commonly used materials for permanent implants in contact with bone. However, implant-related infections remain among the leading reasons for failure. The most critical pathogenic event in the development of infection on biomaterials is biofilm formation, which starts immediately after bacterial adhesion. In the last decade, numerous studies reported the ability of titanium surface modifications and coatings to minimize bacterial adhesion, inhibit biofilm formation and provide effective bacterial killing to protect implanted biomaterials. In the present review, the different strategies to prevent infection onto titanium surfaces are reported: surface modification and coatings by antibiotics, antimicrobial peptides, inorganic antibacterial metal elements and antibacterial polymers. STATEMENT OF SIGNIFICANCE: Implanted biomaterials play a key role in the current success of orthopedic and dental procedures. Pure titanium and its alloys are the most commonly used materials for permanent implants in contact with bone. Microbial infection is one of the main causes of implant failure. Currently, the global infection risk is 2-5% in orthopedic surgery. Numerous solutions exist to render titanium surfaces antibacterial. The LBPS team is an expert on the functionalization of titanium surfaces by using bioactive polymers to improve the biologiocal response. In this review, the different strategies to prevent infection are reported onto titanium and titanium alloy surfaces such as surface modification by antibiotics, antimicrobial peptides, inorganic antibacterial metal elements and antibacterial polymers.
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Voltrova B, Hybasek V, Blahnova V, Sepitka J, Lukasova V, Vocetkova K, Sovkova V, Matejka R, Fojt J, Joska L, Daniel M, Filova E. Different diameters of titanium dioxide nanotubes modulate Saos-2 osteoblast-like cell adhesion and osteogenic differentiation and nanomechanical properties of the surface. RSC Adv 2019; 9:11341-11355. [PMID: 35520235 PMCID: PMC9062999 DOI: 10.1039/c9ra00761j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/28/2019] [Indexed: 01/09/2023] Open
Abstract
Nanostructured cpTi surfaces affected Saos-2 cell adhesion, proliferation, and osteogenic differentiation as well as the nanomechanical properties of the surface.
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Almoudi MM, Hussein AS, Abu Hassan MI, Mohamad Zain N. A systematic review on antibacterial activity of zinc against Streptococcus mutans. Saudi Dent J 2018; 30:283-291. [PMID: 30202164 PMCID: PMC6128804 DOI: 10.1016/j.sdentj.2018.06.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 06/08/2018] [Accepted: 06/08/2018] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES The aim of this study was to systematically review the growth inhibition effectiveness of zinc against Streptococcus mutans. The main question was, "Does the zinc inhibit the growth of oral Streptococcus mutans in vitro? METHODS Literature search on PubMed, Medline, and science direct databases was carried out for in vitro studies published in English from 1990 to 2016, and the reported outcomes of minimum inhibitory concentration (MIC), minimum bactericidal concentrations (MBC), zone of inhibition (ZOI) and bacterial count method using colony forming unit (CFU) were used to assess the antibacterial effectiveness of zinc. RESULTS Seventeen studies were included in this review. Seven studies reported MIC and MBC. Four studies reported ZOI, and eight studies reported CFU. MIC values using zinc chloride and zinc oxide nanoparticles were ranged from 0.025 to 0.2 mM and 0.390 to 500 ± 306.18 µg/ml respectively. MBC values using zinc oxide nanoparticles have ranged from 3.125 to 500 µg/ml. ZOI ranged from no inhibition zone to 21 ± 1.4 mm using 23.1% zinc oxide. A considerable reduction in the bacterial count was reported after adding zinc. However, only two studies have reported no inhibitory effect of zinc. CONCLUSION This review indicated a significant growth inhibition effectiveness of zinc even at lower concentrations which indicate it's safely to be used in oral health products.
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Affiliation(s)
- Manal Mohamed Almoudi
- Centre of Paediatric Dentistry and Orthodontics Studies, Faculty of Dentistry, Universiti Teknologi MARA, Selangor, Malaysia
| | - Alaa Sabah Hussein
- Centre of Paediatric Dentistry and Orthodontics Studies, Faculty of Dentistry, Universiti Teknologi MARA, Selangor, Malaysia
| | - Mohamed Ibrahim Abu Hassan
- Centre of Restorative Dentistry Studies, Faculty of Dentistry, Universiti Teknologi MARA, Selangor, Malaysia
| | - Nurhayati Mohamad Zain
- Centre of PreClinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Selangor, Malaysia
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Li J, Cha R, Mou K, Zhao X, Long K, Luo H, Zhou F, Jiang X. Nanocellulose-Based Antibacterial Materials. Adv Healthc Mater 2018; 7:e1800334. [PMID: 29923342 DOI: 10.1002/adhm.201800334] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/18/2018] [Indexed: 11/12/2022]
Abstract
In recent years, nanocellulose-based antimicrobial materials have attracted a great deal of attention due to their unique and potentially useful features. In this review, several representative types of nanocellulose and modification methods for antimicrobial applications are mainly focused on. Recent literature related with the preparation and applications of nanocellulose-based antimicrobial materials is reviewed. The fabrication of nanocellulose-based antimicrobial materials for wound dressings, drug carriers, and packaging materials is the focus of the research. The most important additives employed in the preparation of nanocellulose-based antimicrobial materials are presented, such as antibiotics, metal, and metal oxide nanoparticles, as well as chitosan. These nanocellulose-based antimicrobial materials can benefit many applications including wound dressings, drug carriers, and packaging materials. Finally, the challenges of industrial production and potentials for development of nanocellulose-based antimicrobial materials are discussed.
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Affiliation(s)
- Juanjuan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Ruitao Cha
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Kaiwen Mou
- CAS Key Laboratory of Bio-based Materials; Qingdao Institute of Bioenergy and Bioprocess Technology; University of Chinese Academy of Sciences; Qingdao 266101 China
| | - Xiaohui Zhao
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Keying Long
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Huize Luo
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
| | - Fengshan Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
- Sino-Danish College, University of Chinese Academy of Sciences; Beijing 100049 China
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Zakharova OV, Gusev AA, Altabaeva YV, Perova SY. Biological Effects of Freshly Prepared and 24-h Aqueous Dispersions of Copper and Copper Oxide Nanoparticles on E. coli Bacteria. ACTA ACUST UNITED AC 2018. [DOI: 10.1134/s1995078018020180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bose S, Banerjee D, Shivaram A, Tarafder S, Bandyopadhyay A. Calcium phosphate coated 3D printed porous titanium with nanoscale surface modification for orthopedic and dental applications. MATERIALS & DESIGN 2018; 151:102-112. [PMID: 31406392 PMCID: PMC6690623 DOI: 10.1016/j.matdes.2018.04.049] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This study aims to improve the interfacial bonding between the osseous host tissue and the implant surface through the application of doped calcium phosphate (CaP) coating on 3D printed porous titanium. Porous titanium (Ti) cylinders with 25% volume porosity were fabricated using Laser Engineered Net Shaping (LENS™), a commercial 3D Printing technique. The surface of these 3D printed cylinders was modified by growing TiO2 nanotubes first, followed by a coating of with Sr2+ and Si4+ doped bioactive CaP ceramic in simulated body fluid (SBF). Doped CaP coated implants were hypothesized to show enhanced early stage bone tissue integration. Biological properties of these implants were investigated in vivo using a rat distal femur model after 4 and 10 weeks. CaP coated porous Ti implants have enhanced tissue ingrowth as was evident from the CT scan analysis, push out test results, and the histological analysis compared to porous implants with or without surface modification via titania nanotubes. Increased osteoid-like new bone formation and accelerated mineralization was revealed inside the CaP coated porous implants. It is envisioned that such an approach of adding a bioactive doped CaP layer on porous Ti surface can reduce healing time by enhancing early stage osseointegration in vivo.
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Affiliation(s)
- Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Dishary Banerjee
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Anish Shivaram
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Solaiman Tarafder
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Amit Bandyopadhyay
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
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Yao S, Feng X, Lu J, Zheng Y, Wang X, Volinsky AA, Wang LN. Antibacterial activity and inflammation inhibition of ZnO nanoparticles embedded TiO 2 nanotubes. NANOTECHNOLOGY 2018; 29:244003. [PMID: 29596060 DOI: 10.1088/1361-6528/aabac1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Titanium (Ti) with nanoscale structure on the surface exhibits excellent biocompatibility and bone integration. Once implanted, the surgical implantation may lead to bacterial infection and inflammatory reaction, which cause the implant failure. In this work, irregular and nanorod-shaped ZnO nanoparticles were doped into TiO2 nanotubes (TNTs) with inner diameter of about 50 nm by electro-deposition. The antibacterial properties of ZnO incorporated into TiO2 nanotubes (TNTs/ZnO) were evaluated using Staphylococcus aureus (S. aureus). Zn ions released from the nanoparticles and the morphology could work together, improving antibacterial effectiveness up to 99.3% compared with the TNTs. Macrophages were cultured on the samples to determine their respective anti-inflammatory properties. The proliferation and viability of macrophages were evaluated by the CCK-8 method and Live&Dead stain, and the morphology of the cells was observed by scanning electron microscopy. Results indicated that TNTs/ZnO has a significant inhibitory effect on the proliferation and adhesion of macrophages, which could be used to prevent chronic inflammation and control the inflammatory reaction. Besides, the release of Zn ions from the ZnO nanoparticles is a long-term process, which could be beneficial for bone integration. Results demonstrate that ZnO deposited into TNTs improved the antibacterial effectiveness and weakened the inflammatory reaction of titanium-based implants, which is a promising approach to enhance their bioactivity.
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Affiliation(s)
- Shenglian Yao
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
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Zhang C, Liu W, Cao C, Zhang F, Tang Q, Ma S, Zhao J, Hu L, Shen Y, Chen L. Modulating Surface Potential by Controlling the β Phase Content in Poly(vinylidene fluoridetrifluoroethylene) Membranes Enhances Bone Regeneration. Adv Healthc Mater 2018; 7:e1701466. [PMID: 29675849 DOI: 10.1002/adhm.201701466] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/07/2018] [Indexed: 12/11/2022]
Abstract
Bioelectricity plays a vital role in living organisms. Although electrical stimulation is introduced in the field of bone regeneration, the concept of a dose-response relationship between surface potential and osteogenesis is not thoroughly studied. To optimize the osteogenic properties of different surface potentials, a flexible piezoelectric membrane, poly(vinylidene fluoridetrifluoroethylene) [P(VDF-TrFE)], is fabricated by annealing treatment to control its β phases. The surface potential and piezoelectric coefficients (d33 ) of the membranes can be regulated by increasing β phase contents. Compared with d33 = 20 pC N-1 (surface potential = -78 mV) and unpolarized membranes, bone marrow mesenchymal stem cells (BM-MSCs) cultured on the d33 = 10 pC N-1 (surface potential = -53 mV) membranes have better osteogenic properties. In vivo, d33 = 10 pC N-1 membranes result in rapid bone regeneration and complete mature bone-structure formation. BM-MSCs on d33 = 10 pC N-1 membranes have the lowest reactive oxygen species level and the highest mitochondrial membrane electric potential, implying that these membranes provide the best electrical qunantity for BM-MSCs' proliferation and energy metabolism. This study establishes an effective method to control the surface potential of P(VDF-Trfe) membranes and highlights the importance of optimized electrical stimulation in bone regeneration.
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Affiliation(s)
- Chenguang Zhang
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
| | - Wenwen Liu
- Department of Geriatric Dentistry; Peking University School and Hospital of Stomatology; Beijing 100081 China
| | - Cen Cao
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
| | - Fengyi Zhang
- Department of Geriatric Dentistry; Peking University School and Hospital of Stomatology; Beijing 100081 China
| | - Qingming Tang
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
| | - Siqin Ma
- Department of Geriatric Dentistry; Peking University School and Hospital of Stomatology; Beijing 100081 China
| | - JiaJia Zhao
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
| | - Li Hu
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
| | - Yang Shen
- State Key Laboratory of New Ceramics and Fine Processing; Department of Materials Science and Engineering; Tsinghua University; Beijing 100084 China
| | - Lili Chen
- Department of Stomatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 China
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44
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Roguska A, Belcarz A, Zalewska J, Hołdyński M, Andrzejczuk M, Pisarek M, Ginalska G. Metal TiO 2 Nanotube Layers for the Treatment of Dental Implant Infections. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17089-17099. [PMID: 29718650 DOI: 10.1021/acsami.8b04045] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Titanium oxide nanotube layers with silver and zinc nanoparticles are attracting increasing attention in the design of bone and dental implants due to their antimicrobial potential and their ability to control host cell adhesion, growth, and differentiation. However, recent reports indicate that the etiology of dental infections is more complex than has been previously considered. Therefore, the antimicrobial potential of dental implants should be evaluated against at least several different microorganisms cooperating in human mouth colonization. In this study, Ag and Zn nanoparticles incorporated into titanium oxide nanotubular layers were studied with regard to how they affect Candida albicans, Candida parapsilosis, and Streptococcus mutans. Layers of titanium oxide nanotubes with an average diameter of 110 nm were fabricated by electrochemical anodization, annealed at 650 °C, and modified with approx. 5 wt % Ag or Zn nanoparticles. The surfaces were examined with the scanning electron microscopy-energy dispersive X-ray analysis, scanning transmission electron microscopy, and X-ray photoelectron spectroscopy techniques and subjected to evaluation of microbial-killing and microbial adhesion-inhibiting potency. In a 1.5 h long adhesion test, the samples were found more effective toward yeast strains than toward S. mutans. In a release-killing test, the microorganisms were almost completely eliminated by the samples, either within 3 h of contact (for S. mutans) or 24 h of contact (for both yeast strains). Although further improvement is advisable, it seems that Ag and Zn nanoparticles incorporated into TiO2 nanotubular surfaces provide a powerful tool for reducing the incidence of bone implant infections. Their high bidirectional activity (against both Candida species and S. mutans) makes the layers tested particularly promising for the design of dental implants.
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Affiliation(s)
- Agata Roguska
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Anna Belcarz
- Chair and Department of Biochemistry and Biotechnology , Medical University of Lublin , Chodzki 1 , 20-093 Lublin , Poland
| | - Justyna Zalewska
- Chair and Department of Biochemistry and Biotechnology , Medical University of Lublin , Chodzki 1 , 20-093 Lublin , Poland
| | - Marcin Hołdyński
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Mariusz Andrzejczuk
- Faculty of Materials Science and Engineering , Warsaw University of Technology , Woloska 141 , 02-507 Warsaw , Poland
| | - Marcin Pisarek
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Grazyna Ginalska
- Chair and Department of Biochemistry and Biotechnology , Medical University of Lublin , Chodzki 1 , 20-093 Lublin , Poland
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45
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Cai L, Chen J, Liu Z, Wang H, Yang H, Ding W. Magnesium Oxide Nanoparticles: Effective Agricultural Antibacterial Agent Against Ralstonia solanacearum. Front Microbiol 2018; 9:790. [PMID: 29922237 PMCID: PMC5996892 DOI: 10.3389/fmicb.2018.00790] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/09/2018] [Indexed: 01/02/2023] Open
Abstract
Magnesium (Mg) is an essential mineral element for plants and is nontoxic to organisms. In this study, we took advantage of nanotechnologies to systematically investigate the antibacterial mechanisms of magnesium oxide nanoparticles (MgONPs) against the phytopathogen Ralstonia solanacearum (R. solanacearum) in vitro and in vivo for the first time. R. solanacearum has contributed to catastrophic bacterial wilt, which has resulted in the world-wide reduction of tobacco production. The results demonstrated that MgONPs possessed statistically significant concentration-dependent antibacterial activity, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were measured as 200 and 250 μg/mL, respectively. Additional studies, aimed at understanding the toxicity mechanism of MgONPs, indicated that physical injury occurred to the cell membranes, along with decreased motility and biofilm formation ability of R. solanacearum, due to the direct attachment of MgONPs to the surfaces of the bacterial cells, which was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Reactive oxygen species (ROS) accumulation could also be an important reason for the antibacterial action, inducing DNA damage. The toxicity assessment assay under greenhouse conditions demonstrated that the MgONPs had exerted a large effect on tobacco bacterial wilt, reducing the bacterial wilt index. Altogether, the results suggest that the development of MgONPs as alternative antibacterial agents will become a new research subject.
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Affiliation(s)
- Lin Cai
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Juanni Chen
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Zhongwei Liu
- Guizhou Key Laboratory of Agro-Bioengineering, Guizhou University, Guiyang, China
| | | | - Huikuan Yang
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Wei Ding
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing, China
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46
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Lu R, Wang C, Wang X, Wang Y, Wang N, Chou J, Li T, Zhang Z, Ling Y, Chen S. Effects of hydrogenated TiO 2 nanotube arrays on protein adsorption and compatibility with osteoblast-like cells. Int J Nanomedicine 2018; 13:2037-2049. [PMID: 29670348 PMCID: PMC5894653 DOI: 10.2147/ijn.s155532] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Modified titanium (Ti) substrates with titanium dioxide (TiO2) nanotubes have broad usage as implant surface treatments and as drug delivery systems. Methods To improve drug-loading capacity and accelerate bone integration with titanium, in this study, we hydrogenated anodized titanium dioxide nanotubes (TNTs) by a thermal treatment. Three groups were examined, namely: hydrogenated TNTs (H2-TNTs, test), unmodified TNTs (air-TNTs, control), and Ti substrates (Ti, control). Results Our results showed that oxygen vacancies were present in all the nanotubes. The quantity of -OH groups greatly increased after hydrogenation. Furthermore, the protein adsorption and loading capacity of the H2-TNTs were considerably enhanced as compared with the properties of the air-TNTs (P<0.05). Additionally, time-of-flight secondary ion mass spectrometry (TOF-SIMS) was used to investigate the interactions of TNTs with proteins. During the protein-loading process, the H2-TNTs not only enabled rapid protein adsorption, but also decreased the rate of protein elution compared with that of the air-TNTs. We found that the H2-TNTs exhibited better biocompatibility than the air-TNT and Ti groups. Both cell adhesion activity and alkaline phosphatase activity were significantly improved toward MG-63 human osteoblast-like cells as compared with the control groups (P<0.05). Conclusion We conclude that hydrogenated TNTs could greatly improve the loading capacity of bioactive molecules and MG-63 cell proliferation.
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Affiliation(s)
- Ran Lu
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University.,Laboratory of Advanced Functional Materials, Department of Materials Science and Engineering, Tsinghua University.,School of Pharmaceutical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Caiyun Wang
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University.,Laboratory of Advanced Functional Materials, Department of Materials Science and Engineering, Tsinghua University.,School of Pharmaceutical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Xin Wang
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University
| | - Yuji Wang
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Na Wang
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University
| | - Joshua Chou
- Advanced Tissue Regeneration and Drug Delivery Group, School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia
| | - Tao Li
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University.,Laboratory of Advanced Functional Materials, Department of Materials Science and Engineering, Tsinghua University
| | - Zhenting Zhang
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University
| | - Yunhan Ling
- Laboratory of Advanced Functional Materials, Department of Materials Science and Engineering, Tsinghua University
| | - Su Chen
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University
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Koo H, Allan RN, Howlin RP, Hall-Stoodley L, Stoodley P. Targeting microbial biofilms: current and prospective therapeutic strategies. Nat Rev Microbiol 2017; 15:740-755. [PMID: 28944770 PMCID: PMC5685531 DOI: 10.1038/nrmicro.2017.99] [Citation(s) in RCA: 978] [Impact Index Per Article: 139.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections. The multifactorial nature of biofilm development and drug tolerance imposes great challenges for the use of conventional antimicrobials and indicates the need for multi-targeted or combinatorial therapies. In this Review, we focus on current therapeutic strategies and those under development that target vital structural and functional traits of microbial biofilms and drug tolerance mechanisms, including the extracellular matrix and dormant cells. We emphasize strategies that are supported by in vivo or ex vivo studies, highlight emerging biofilm-targeting technologies and provide a rationale for multi-targeted therapies aimed at disrupting the complex biofilm microenvironment.
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Affiliation(s)
- Hyun Koo
- Biofilm Research Labs, Levy Center for Oral Health, Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Raymond N Allan
- Clinical and Experimental Sciences, Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Wellcome Trust Clinical Research Facility, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Robert P Howlin
- Centre for Biological Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Luanne Hall-Stoodley
- Southampton NIHR Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Department of Microbial Infection and Immunity, Centre for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, USA
| | - Paul Stoodley
- Department of Microbial Infection and Immunity, Centre for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, USA
- Depts. Orthopaedics and Microbiology, The Ohio State University, Columbus, Ohio, USA
- National Center for Advanced Tribology at Southampton (nCATS), Faculty of Engineering and the Environment, University of Southampton, UK
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48
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Fernandez-Moure JS, Evangelopoulos M, Colvill K, Van Eps JL, Tasciotti E. Nanoantibiotics: a new paradigm for the treatment of surgical infection. Nanomedicine (Lond) 2017; 12:1319-1334. [PMID: 28520517 DOI: 10.2217/nnm-2017-0401] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Infections following orthopedic device implantations often impose a substantial health burden and result in high medical costs. Currently, preventative methods are often employed following an orthopedic implant to reduce risk of infection; however, contamination of the surgical site can still occur. Although antibiotics have demonstrated a substantial reduction in bacterial growth and maintenance, biofilm formation around the implant can often minimize efficacy of the antibiotic. Recently, nanotechnology has garnered significant interest, resulting in the development of several antibiotic delivery strategies that exhibit extended release and increased efficacy. In this review, treatment methods of orthopedic-device-related infections will be discussed and an overview of antimicrobial-based nanotechnologies will be provided. Specifically, nonmetal-, metal- and oxide-based nanotechnologies, incorporating antibacterial strategies, will be discussed.
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Affiliation(s)
- Joseph S Fernandez-Moure
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, TX, USA.,Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | | | - Kayla Colvill
- University of Texas McGovern Medical School, Houston, TX, USA
| | - Jeffrey L Van Eps
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, TX, USA.,Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
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49
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Li T, Wang N, Chen S, Lu R, Li H, Zhang Z. Antibacterial activity and cytocompatibility of an implant coating consisting of TiO 2 nanotubes combined with a GL13K antimicrobial peptide. Int J Nanomedicine 2017; 12:2995-3007. [PMID: 28442908 PMCID: PMC5396942 DOI: 10.2147/ijn.s128775] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Prevention of implant-associated infections at an early stage of surgery is highly desirable for the long-term efficacy of implants in dentistry and orthopedics. Infection prophylaxis using conventional antibiotics is becoming less effective due to the development of bacteria resistant to multiple antibiotics. An ideal strategy to conquer bacterial infections is the local delivery of antibacterial agents. Therefore, antimicrobial peptide (AMP) eluting coatings on implant surfaces is a promising alternative. In this study, the feasibility of utilizing TiO2 nanotubes (TNTs), processed using anodization, as carriers to deliver a candidate AMP on titanium surfaces for the prevention of implant-associated infections is assessed. The broad-spectrum GL13K (GKIIKLKASLKLL-CONH2) AMP derived from human parotid secretory protein was selected and immobilized to TNTs using a simple soaking technique. Field emission scanning electron microscope, X-ray diffraction, Fourier transform infrared spectroscopy, and liquid chromatography–mass spectrometry analyses confirmed the successful immobilization of GL13K to anatase TNTs. The drug-loaded coatings demonstrated a sustained and slow drug release profile in vitro and eradicated the growth of Fusobacterium nucleatum and Porphyromonas gingivalis within 5 days of culture, as assessed by disk-diffusion assay. The GL13K-immobilized TNT (GL13K-TNT) coating demonstrated greater biocompatibility, compared with a coating produced by incubating TNTs with equimolar concentrations of metronidazole. GL13K-TNTs produced no observable cytotoxicity to preosteoblastic cells (MC3T3-E1). The coating may also have an immune regulatory effect, in support of rapid osseointegration around implants. Therefore, the combination of TNTs and AMP GL13K may achieve simultaneous antimicrobial and osteoconductive activities.
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Affiliation(s)
- Tao Li
- Department of Prosthodontics, School of Stomatology, Capital Medical University.,Key Laboratory of Advanced Functional Materials, School of Materials and Engineering, Beijing University of Technology. Beijing, People's Republic of China
| | - Na Wang
- Department of Prosthodontics, School of Stomatology, Capital Medical University
| | - Su Chen
- Department of Prosthodontics, School of Stomatology, Capital Medical University
| | - Ran Lu
- Department of Prosthodontics, School of Stomatology, Capital Medical University
| | - Hongyi Li
- Key Laboratory of Advanced Functional Materials, School of Materials and Engineering, Beijing University of Technology. Beijing, People's Republic of China
| | - Zhenting Zhang
- Department of Prosthodontics, School of Stomatology, Capital Medical University
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Ge S, Zhang L, Zhang Y, Lan F, Yan M, Yu J. Nanomaterials-modified cellulose paper as a platform for biosensing applications. NANOSCALE 2017; 9:4366-4382. [PMID: 28155933 DOI: 10.1039/c6nr08846e] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Recently, paper substrates have attracted tremendous interest from both academia and industry. Not only is paper highly abundant and portable, it is lightweight, disposable, easy-to-use, and can be rolled or folded into 3D configurations. More importantly, with a unique porous bulk structure and rough and absorptive surface properties, the construction of nanomaterials-functionalized cellulose has enabled cellulose paper to be applied for point-of-care (POC) paper devices with reasonably good performance at low cost. In this review, the latest advances in the modification of nanomaterials on paper cellulose are summed up. To begin with, the attractive properties of paper-based analytical devices are described. Then, fabricating methods for the functionalization of cellulose with diverse materials, including noble metals, bimetals, metal oxides, carbon nanomaterials, and molecular imprinting polymer nanoparticles, as well as their applications, are introduced in detail. Finally, the current critical issues, challenges, and future prospectives for exploring a paper-based analytical system based on nanomaterials-modified cellulose are discussed. It is believed that more strategies will be developed in the future to construct nanomaterials-functionalized cellulose, paving the way for the mass production of POC paper devices with a satisfactory performance.
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Affiliation(s)
- Shenguang Ge
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yan Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Feifei Lan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Mei Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
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