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Hayashi K, Shimabukuro M, Zhang C, Taleb Alashkar AN, Kishida R, Tsuchiya A, Ishikawa K. Silver phosphate-modified carbonate apatite honeycomb scaffolds for anti-infective and pigmentation-free bone tissue engineering. Mater Today Bio 2024; 27:101161. [PMID: 39155941 PMCID: PMC11326936 DOI: 10.1016/j.mtbio.2024.101161] [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: 04/03/2024] [Revised: 07/01/2024] [Accepted: 07/17/2024] [Indexed: 08/20/2024] Open
Abstract
Bone regeneration using synthetic materials has a high rate of surgical site infection, resulting in severe pain for patients and often requiring revision surgery. We propose Ag3PO4-based surface modification and structural control of scaffolds for preventing infections in bone regeneration. We demonstrated the differences in toxicity and antibacterial activity between in vitro and in vivo studies and determined the optimal silver content in terms of overall anti-infection effects, bone regeneration, toxicity, and pigmentation. A honeycomb structure comprising osteoconductive and resorbable carbonate apatite (CAp) was used as the base scaffold. CAp in the scaffold surface was partially replaced with different concentrations of Ag3PO4 via controlled dissolution-precipitation reactions in an AgNO3 solution. Both bone regeneration and infection prevention were achieved at 860-2300 ppm of silver. Despite the absence of Ag3PO4, honeycomb scaffolds were less susceptible to infection, even under conditions where infection occurs in clinically used three-dimensional porous scaffolds. Regardless of in vitro cytotoxicity at >5200 ppm of silver, increasing the silver content to 21,000 ppm did not adversely affect in vivo bone formation and scaffold resorption or cause acute systemic toxicity. Rather, bone formation was enhanced with 5200 ppm of silver. However, pigmentation was observed at that concentration. Hence, we concluded that the optimal silver concentration range is 860-2300 ppm for anti-infective and pigmentation-free bone regeneration. Bone regeneration was achieved via surface modification, resulting in the rapid release of silver ions immediately after implantation, followed by gradual release over several months. The scaffold structure may also aid in preventing bacterial growth within the scaffolds.
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Affiliation(s)
- Koichiro Hayashi
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masaya Shimabukuro
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10, Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Cheng Zhang
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ahmad Nazir Taleb Alashkar
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ryo Kishida
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akira Tsuchiya
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Pedroni MA, Ribeiro VST, Cieslinski J, Lopes APDA, Kraft L, Suss PH, Tuon FF. Different concentrations of vancomycin with gentamicin loaded PMMA to inhibit biofilm formation of Staphylococcus aureus and their implications. J Orthop Sci 2024; 29:334-340. [PMID: 36526520 DOI: 10.1016/j.jos.2022.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND This study aimed to evaluate different concentrations of vancomycin and/or gentamicin loaded polymethylmethacrylate (PMMA) against biofilm formation of Staphylococcus aureus. METHODS Biofilm production of S. aureus in PMMA loaded with different concentrations of vancomycin and gentamicin were evaluated by quantitative analysis of biofilm cells, scanning electronic microscopy, viability assay, Fourier transform infrared spectroscopy, and checkerboard. Statistical analysis was performed by Mann Whitney test. The difference in colony forming units per mL was significant when p < 0.05. RESULTS All loaded PMMA presented a reduction in the number of colony forming units per mL (p < 0.05). The gentamicin-loaded PMMA could inhibits the grown of sessile cells (p < 0.05), where the group vancomycin 4 g + gentamicin 500 mg presented a better result. The Fourier transform infrared spectra showed no significant differences, and checkerboard of vancomycin and gentamicin showed synergism. CONCLUSION Effects against adherence and bacterial development in PMMA loaded with antibiotics were mainly seen in the group vancomycin 4 g + gentamicin 500 mg, and synergic effect can be applied in antibiotic-loaded cement.
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Affiliation(s)
- Marco Antonio Pedroni
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Victoria Stadler Tasca Ribeiro
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Juliette Cieslinski
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Ana Paula de Andrade Lopes
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Letícia Kraft
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Paula Hansen Suss
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil
| | - Felipe Francisco Tuon
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil.
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Badea MA, Balas M, Popa M, Borcan T, Bunea AC, Predoi D, Dinischiotu A. Biological Response of Human Gingival Fibroblasts to Zinc-Doped Hydroxyapatite Designed for Dental Applications-An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114145. [PMID: 37297278 DOI: 10.3390/ma16114145] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
This study aimed to investigate the biological response induced by hydroxyapatite (HAp) and zinc-doped HAp (ZnHAp) in human gingival fibroblasts and to explore their antimicrobial activity. The ZnHAp (with xZn = 0.00 and 0.07) powders, synthesized by the sol-gel method, retained the crystallographic structure of pure HA without any modification. Elemental mapping confirmed the uniform dispersion of zinc ions in the HAp lattice. The size of crystallites was 18.67 ± 2 nm for ZnHAp and 21.54 ± 1 nm for HAp. The average particle size was 19.38 ± 1 nm for ZnHAp and 22.47 ± 1 nm for HAp. Antimicrobial studies indicated an inhibition of bacterial adherence to the inert substrate. In vitro biocompatibility was tested on various doses of HAp and ZnHAp after 24 and 72 h of exposure and revealed that cell viability decreased after 72 h starting with a dose of 31.25 µg/mL. However, cells retained membrane integrity and no inflammatory response was induced. High doses (such as 125 µg/mL) affected cell adhesion and the architecture of F-actin filaments, while in the presence of lower doses (such as 15.625 µg/mL), no modifications were observed. Cell proliferation was inhibited after treatment with HAp and ZnHAp, except the dose of 15.625 µg/mL ZnHAp at 72 h of exposure, when a slight increase was observed, proving an improvement in ZnHAp activity due to Zn doping.
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Affiliation(s)
- Madalina Andreea Badea
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
- Research Institute of the University of Bucharest (ICUB), University of Bucharest, 90-92 Sos. Panduri, 050663 Bucharest, Romania
| | - Mihaela Balas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Marcela Popa
- Department of Botany and Microbiology, Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor, 060101 Bucharest, Romania
| | - Teodora Borcan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Anamaria-Cristina Bunea
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Daniela Predoi
- National Institute of Materials Physics, No. 405A Atomistilor Street, 077125 Magurele, Romania
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
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Calabrese G, De Luca G, Franco D, Morganti D, Rizzo MG, Bonavita A, Neri G, Fazio E, Neri F, Fazio B, Crea F, Leonardi AA, Faro MJL, Guglielmino S, Conoci S. Structural and antibacterial studies of novel ZnO and Zn xMn (1-x)O nanostructured titanium scaffolds for biomedical applications. BIOMATERIALS ADVANCES 2023; 145:213193. [PMID: 36587469 DOI: 10.1016/j.bioadv.2022.213193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2022]
Abstract
In the biomedical field, the demand for the development of broad-spectrum biomaterials able to inhibit bacterial growth is constantly increasing. Chronic infections represent the most serious and devastating complication related to the use of biomaterials. This is particularly relevant in the orthopaedic field, where infections can lead to implant loosening, arthrodesis, amputations and sometimes death. Antibiotics are the conventional approach for implanted-associated infections, but they have the limitation of increasing antibiotic resistance, a critical worldwide healthcare issue. In this context, the development of anti-infective biomaterials and infection-resistant surfaces can be considered the more effective strategy to prevent the implant colonisation and biofilm formation by bacteria, so reducing the occurrence of implant-associated infections. In the last years, inorganic nanostructures have become extremely appealing for chemical modifications or coatings of Ti surfaces, since they do not generate antibiotic resistance issues and are featured by superior stability, durability, and full compatibility with the sterilization process. In this work, we present a simple, rapid, and cheap chemical nanofunctionalization of titanium (Ti) scaffolds with colloidal ZnO and Mn-doped ZnO nanoparticles (NPs), prepared by a sol-gel method, exhibiting antibacterial activity. ZnO NPs and ZnxMn(1-x)O NPs formation with a size around 10-20nm and band gap values of 3.42 eV and 3.38 eV, respectively, have been displayed by characterization studies. UV-Vis, fluorescence, and Raman investigation suggested that Mn ions acting as dopants in the ZnO lattice. Ti scaffolds have been functionalized through dip coating, obtaining ZnO@Ti and ZnxMn(1-x)O@Ti biomaterials characterized by a continuous nanostructured film. ZnO@Ti and ZnxMn(1-x)O@Ti displayed an enhanced antibacterial activity against both Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Pseudomonas aeruginosa (P. aeruginosa) bacterial strains, compared to NPs in solution with better performance of ZnxMn(1-x)O@Ti respect to ZnO@Ti. Notably, it has been observed that ZnxMn(1-x)O@Ti scaffolds reach a complete eradication for S. aureus and 90 % of reduction for P. aeruginosa. This can be attributed to Zn2+ and Mn2+ metal ions release (as observed by ICP MS experiments) that is also maintained over time (72 h). To the best of our knowledge, this is the first study reported in the literature describing ZnO and Mn-doped ZnO NPs nanofunctionalized Ti scaffolds with improved antibacterial performance, paving the way for the realization of new hybrid implantable devices through a low-cost process, compatible with the biotechnological industrial chain method.
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Affiliation(s)
- Giovanna Calabrese
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Giovanna De Luca
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Domenico Franco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | | | - Maria Giovanna Rizzo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Anna Bonavita
- Department of Engineering, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Giovanni Neri
- Department of Engineering, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, Viale F. Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Fortunato Neri
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, Viale F. Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Barbara Fazio
- LAB Sense Beyond Nano - URT Department of Sciences Physics and Technologies of Matter (DSFTM) CNR, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Francesco Crea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Antonio Alessio Leonardi
- Department of Physic and Astronomy, University of Catania (Italy), Via Santa Sofia 64, Catania, Italy
| | - Maria Josè Lo Faro
- Department of Physic and Astronomy, University of Catania (Italy), Via Santa Sofia 64, Catania, Italy
| | - Salvatore Guglielmino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Sabrina Conoci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy; LAB Sense Beyond Nano - URT Department of Sciences Physics and Technologies of Matter (DSFTM) CNR, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy; Istituto per la Microelettronica e Microsistemi, Consiglio Nazionale delle Ricerche (CNR-IMM), Catania, Italy; Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
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Sivaperumal VR, Mani R, Polisetti V, Aruchamy K, Oh T. One-Pot Hydrothermal Preparation of Hydroxyapatite/Zinc Oxide Nanorod Nanocomposites and Their Cytotoxicity Evaluation against MG-63 Osteoblast-like Cells. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010345. [PMID: 36615538 PMCID: PMC9823595 DOI: 10.3390/molecules28010345] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023]
Abstract
In the present study, HAp-ZnO nanorod nanocomposites were successfully prepared using a customized hydrothermal reactor and studied for their compatibility against MG-63 osteoblast-like cells. The crystallinity, morphology, presence of chemical elements, and surface area properties were studied by XRD (X-ray diffraction), FE-SEM (field emission scanning electron microscopy), TEM (transmission electron microscopy), EDS (energy dispersive spectrum) and N2 adsorption/desorption isotherm techniques, respectively. Further, the mechanical strength and thermal analysis were carried out using the nanoindentation method and thermogravimetric/differential scanning calorimeter (TG/DSC) methods, respectively. Moreover, in vitro biocompatibility studies for the prepared samples were carried out against human osteosarcoma cell lines (MG-63). The crystalline nature of the samples without any impurity phases was notified from XRD results. The formation of composites with the morphology of nanorods and the presence of desired elements in the intended ratio were verified using FE-SEM and EDS spectra, respectively. The TG/DSC results revealed the improved thermal stability of the HAp matrix, promoted by the reinforcement of the ZnO nanorods. The nanoindentation study ensured a significant enhancement in the mechanical stability of the prepared composite material. Finally, it demonstrated that the HAp matrix's mechanical strength and thermal stability were improved by the reinforcement of ZnO, and the cytotoxicity evaluation affirmed the biocompatible nature of the biomimetic hydroxyapatite in the composite.
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Affiliation(s)
| | - Rajkumar Mani
- Department of Physics, PSG College of Arts and Science, Coimbatore 641014, India
| | - Veerababu Polisetti
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Correspondence: (V.P.); (K.A.); (T.O.)
| | - Kanakaraj Aruchamy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Correspondence: (V.P.); (K.A.); (T.O.)
| | - Taehwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Correspondence: (V.P.); (K.A.); (T.O.)
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Bioengineering Approaches to Fight against Orthopedic Biomaterials Related-Infections. Int J Mol Sci 2022; 23:ijms231911658. [PMID: 36232956 PMCID: PMC9569980 DOI: 10.3390/ijms231911658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
One of the most serious complications following the implantation of orthopedic biomaterials is the development of infection. Orthopedic implant-related infections do not only entail clinical problems and patient suffering, but also cause a burden on healthcare care systems. Additionally, the ageing of the world population, in particular in developed countries, has led to an increase in the population above 60 years. This is a significantly vulnerable population segment insofar as biomaterials use is concerned. Implanted materials are highly susceptible to bacterial and fungal colonization and the consequent infection. These microorganisms are often opportunistic, taking advantage of the weakening of the body defenses at the implant surface–tissue interface to attach to tissues or implant surfaces, instigating biofilm formation and subsequent development of infection. The establishment of biofilm leads to tissue destruction, systemic dissemination of the pathogen, and dysfunction of the implant/bone joint, leading to implant failure. Moreover, the contaminated implant can be a reservoir for infection of the surrounding tissue where microorganisms are protected. Therefore, the biofilm increases the pathogenesis of infection since that structure offers protection against host defenses and antimicrobial therapies. Additionally, the rapid emergence of bacterial strains resistant to antibiotics prompted the development of new alternative approaches to prevent and control implant-related infections. Several concepts and approaches have been developed to obtain biomaterials endowed with anti-infective properties. In this review, several anti-infective strategies based on biomaterial engineering are described and discussed in terms of design and fabrication, mechanisms of action, benefits, and drawbacks for preventing and treating orthopaedic biomaterials-related infections.
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In situ facile green synthesis of Ag-ZnO nanocomposites using Tetradenia riperia leaf extract and its antimicrobial efficacy on water disinfection. Sci Rep 2022; 12:15359. [PMID: 36100625 PMCID: PMC9470730 DOI: 10.1038/s41598-022-19403-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/29/2022] [Indexed: 11/08/2022] Open
Abstract
In this work, Ag–ZnO nanocomposites were prepared by a green synthesis route using aqueous leaf extract of Tetradenia riperia and investigated for antibacterial activity against Escherichia coli and Staphylococcus aureus. To optimize the synthesis of the Ag–ZnO, the effects of precursor concentrations, pH, and temperatures were studied. The Ag–ZnO nanocomposites were characterized by XRD, ATR-FTIR, FESEM, and TEM. Results show that the concentration of 8% Ag, the temperature of 80 °C, and a pH of 7–8 were optimal for the synthesis of Ag–ZnO nanocomposites. The XRD analysis showed the decrease in particle size of Ag–ZnO from 23.6 to 14.8 nm with an increase in Ag concentrations, which was further supported by FESEM analysis. TEM image of 8% Ag provides more information on the coexistence of Ag on ZnO where an average particle size of 14.8 nm was determined. The ATR-FTIR analysis confirmed the presence of phenolic compounds, which work as reducing and stabilizing agents. The antimicrobial activity results show that Ag–ZnO nanocomposite demonstrated a higher antimicrobial potency on E. coli than on S. aureus. Therefore, Tetradenia riperia leaf extract is a viable route for the synthesis of Ag–ZnO nanocomposites to be used for various applications, including water disinfection.
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Plate-associated localized osteitis in mini-pig by biofilm-forming Methicillin-resistant Staphylococcus aureus (MRSA): establishment of a novel experimental model. Eur J Trauma Emerg Surg 2022; 48:3279-3285. [PMID: 35201371 PMCID: PMC9360133 DOI: 10.1007/s00068-022-01894-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/26/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE The increasing number of implant-associated infections during trauma and orthopedic surgery caused by biofilm-forming Staphylococcus aureus in combination with an increasing resistance of conventional antibiotics requires new therapeutic strategies. One possibility could be testing for different therapeutic strategies with differently coated plates. Therefore, a clinically realistic model is required. The pig offers the best comparability to the human situation, thus it was chosen for this model. The present study characterizes a novel model of a standardized low-grade acute osteitis with bone defect in the femur in mini-pigs, which is stabilized by a titanium locking plate to enable further studies with various coatings. METHODS A bone defect was performed on the femur of 7 Aachen mini-pigs and infected with Methicillin-resistant S. aureus (MRSA ATCC 33592). The defect zone was stabilized with a titanium plate. After 14 days, a plate change, wound debridement and lavage were performed. Finally, after 42 days, the animals were lavaged and debrided again, followed by euthanasia. The fracture healing was evaluated radiologically and histologically. RESULTS A local osteitis with radiologically visible lysis of the bone could be established. The unchanged high Colony-forming Units (CFU) in lavage, the significant differences in Interleukin (IL)-6 in blood compared to lavage and the lack of increase in Alkaline Phosphates (ALP) in serum over the entire observation period show the constant local infection. CONCLUSION The study shows the successful induction of local osteitis with lysis of the bone and the lack of enzymatic activity to mineralize the bone. Therefore, this standardized mini-pig model can be used in further clinical studies, to investigate various coated implants, bone healing, biofilm formation and immune response in implant-associated osteitis.
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Litak J, Grochowski C, Rysak A, Mazurek M, Blicharski T, Kamieniak P, Wolszczak P, Rahnama-Hezavah M, Litak G. New Horizons for Hydroxyapatite Supported by DXA Assessment-A Preliminary Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:942. [PMID: 35160888 PMCID: PMC8839981 DOI: 10.3390/ma15030942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/11/2022] [Accepted: 01/21/2022] [Indexed: 12/10/2022]
Abstract
Dual Energy X-ray Absorptiometry (DXA) is a tool that allows the assessment of bone density. It was first presented by Cameron and Sorenson in 1963 and was approved by the Food and Drug Administration. Misplacing the femoral neck box, placing a trochanteric line below the midland and improper placement of boundary lines are the most common errors made during a DXA diagnostic test made by auto analysis. Hydroxyapatite is the most important inorganic component of teeth and bone tissue. It is estimated to constitute up to 70% of human bone weight and up to 50% of its volume. Calcium phosphate comes in many forms; however, studies have shown that only tricalcium phosphate and hydroxyapatite have the characteristics that allow their use as bone-substituted materials. The purpose of this study is aimed at analyzing the results of hip densitometry and hydorxyapatite distribution in order to better assess the structure and mineral density of the femoral neck. However, a detailed analysis of the individual density curves shows some qualitative differences that may be important in assessing bone strength in the area under study. To draw more specific conclusions on the therapy applied for individual patients, we need to determine the correct orientation of the bone from the resulting density and document the trends in the density distribution change. The average results presented with the DXA method are insufficient.
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Affiliation(s)
- Jakub Litak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (C.G.); (M.M.); (P.K.)
- Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland; (A.R.); (P.W.); (G.L.)
| | - Cezary Grochowski
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (C.G.); (M.M.); (P.K.)
- Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland; (A.R.); (P.W.); (G.L.)
| | - Andrzej Rysak
- Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland; (A.R.); (P.W.); (G.L.)
| | - Marek Mazurek
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (C.G.); (M.M.); (P.K.)
| | - Tomasz Blicharski
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, ul. Jaczewskiego 8, 20-090 Lublin, Poland;
| | - Piotr Kamieniak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (C.G.); (M.M.); (P.K.)
| | - Piotr Wolszczak
- Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland; (A.R.); (P.W.); (G.L.)
| | - Mansur Rahnama-Hezavah
- Chair and Department of Oral Surgery, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Grzegorz Litak
- Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland; (A.R.); (P.W.); (G.L.)
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Acorus calamus-zinc oxide nanoparticle coated cotton fabrics shows antimicrobial and cytotoxic activities against skin cancer cells. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wiesmann N, Mendler S, Buhr CR, Ritz U, Kämmerer PW, Brieger J. Zinc Oxide Nanoparticles Exhibit Favorable Properties to Promote Tissue Integration of Biomaterials. Biomedicines 2021; 9:biomedicines9101462. [PMID: 34680579 PMCID: PMC8533365 DOI: 10.3390/biomedicines9101462] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/30/2022] Open
Abstract
Due to the demographic change, medicine faces a growing demand for tissue engineering solutions and implants. Often, satisfying tissue regeneration is difficult to achieve especially when co-morbidities hamper the healing process. As a novel strategy, we propose the incorporation of zinc oxide nanoparticles (ZnO NPs) into biomaterials to improve tissue regeneration. Due to their wide range of biocompatibility and their antibacterial properties, ZnO NPs are already discussed for different medical applications. As there are versatile possibilities of modifying their form, size, and function, they are becoming increasingly attractive for tissue engineering. In our study, in addition to antibacterial effects of ZnO NPs, we show for the first time that ZnO NPs can foster the metabolic activity of fibroblasts as well as endothelial cells, both cell types being crucial for successful implant integration. With the gelatin sponge method performed on the chicken embryo’s chorioallantoic membrane (CAM), we furthermore confirmed the high biocompatibility of ZnO NPs. In summary, we found ZnO NPs to have very favorable properties for the modification of biomaterials. Here, incorporation of ZnO NPs could help to guide the tissue reaction and promote complication-free healing.
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Affiliation(s)
- Nadine Wiesmann
- Department of Otorhinolaryngology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (S.M.); (C.R.B.); (J.B.)
- Department of Oral- and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131 Mainz, Germany;
- Correspondence: ; Tel.: +49-6131-17-4034
| | - Simone Mendler
- Department of Otorhinolaryngology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (S.M.); (C.R.B.); (J.B.)
| | - Christoph R. Buhr
- Department of Otorhinolaryngology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (S.M.); (C.R.B.); (J.B.)
| | - Ulrike Ritz
- Department of Orthopedics and Traumatology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany;
| | - Peer W. Kämmerer
- Department of Oral- and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131 Mainz, Germany;
| | - Juergen Brieger
- Department of Otorhinolaryngology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (S.M.); (C.R.B.); (J.B.)
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Sharma G, Park SC, Bandi R, Ahn J, Alle M, Kim JC. Polyquaternium enhances the colloidal stability of chitosan-capped platinum nanoparticles and their antibacterial activity. NANOTECHNOLOGY 2021; 32:455603. [PMID: 34352732 DOI: 10.1088/1361-6528/ac1afa] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Here, for the first time, we have developed a novel green synthesis method where chitosan acts as a reducing agent and as a colloidal stabilizer, together with polyquaternium for the synthesis of platinum nanoparticles (PtNPs). It was observed that only chitosan-stabilized PtNPs (Ch@PtNPs) were stable up to pH 5, with a diameter of around 89 nm. The diameter of the Ch@PtNPs increased with the increase in pH, indicating the instability of Ch@PtNPs at neutral and alkaline mediums. However, when polyquaternium (PQ) (a cationic polymer) was added as a stabilizer along with chitosan, the diameter of chitosan/polyquaternium stabilized PtNPs (Ch/PQ@PtNPs), i.e. 87 nm, remained almost constant up to pH 9. Similarly, the pH-dependent decrease in the surface charge of Ch@PtNPs was also attenuated with the addition of polyquaternium. This indicates high colloidal stability of Ch/PQ@PtNPs in acidic, neutral, as well as alkaline mediums. It was observed that Ch/PQ@PtNPs exhibited high antibacterial activity againstStaphylococcus aureus, as compared to uncapped PtNPs and Ch@PtNPs. Thus, the addition of PQ increases the antibacterial properties of Ch/PQ@PtNPs againstStaphylococcus aureusby enhancing the stability of PtNPs at neutral pH.
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Affiliation(s)
- Garima Sharma
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Soo Chan Park
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Rajkumar Bandi
- Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Juhee Ahn
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Madhusudhan Alle
- Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jin-Chul Kim
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
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13
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da Rocha LGDO, Ribeiro VST, de Andrade AP, Gonçalves GA, Kraft L, Cieslinski J, Suss PH, Tuon FF. Evaluation of Staphylococcus aureus and Candida albicans biofilms adherence to PEEK and titanium-alloy prosthetic spine devices. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:981-989. [PMID: 34236512 DOI: 10.1007/s00590-021-03069-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Titanium and polyether-ether-ketone (PEEK) interbody cages are commonly used for spine fusion. Few data are known about bacterial and yeast biofilms formation in these implants. The aim of this study was to compare Staphylococcus aureus and Candida albicans biofilm formation in the surface of two different interbody devices used routinely in spine surgery. METHODS Six bodies of proof specimens of PEEK and titanium alloy were used for microbiological tests, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Experimental biofilm was produced with Staphylococcus aureus and Candida albicans, followed by quantitative analysis of planktonic cells and sessile cells. The comparison between the medians of biofilm quantification between the two models was performed using the Mann-Whitney test and considered the statistical difference for a p < 0.05. RESULTS In the S. aureus model, in both planktonic and sessile cell counts, titanium-alloy samples showed lower values for colony forming units per milliliter (UFC/mL) (p < 0.05). The evaluation through the optic density of planktonic and sessile cells showed lower values in the titanium-alloy samples, however, only statistically significant in planktonic cell count (p < 0.05). The count of planktonic yeast cells in PEEK was similar to titanium-alloy samples, while the count of sessile yeast cells in titanium alloy was lower when compared to PEEK (p < 0.05). CONCLUSION Titanium-alloy models were associated with less staphylococcal and Candida biofilm formation when compared with PEEK.
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Affiliation(s)
- Luiz Gustavo Dal Oglio da Rocha
- Hospital Universitário Cajuru - HUC, Spine Department. Pontifícia, Universidade Católica do Paraná (PUCPR), Avenida São José, 300, Curitiba, Paraná, 80050-350, Brazil.,School of Medicine, Health Sciences Department, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Victoria Stadler Tasca Ribeiro
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil.,School of Medicine, Health Sciences Department, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Ana Paula de Andrade
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil.,School of Medicine, Health Sciences Department, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Geiziane Aparecida Gonçalves
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Letícia Kraft
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Juliette Cieslinski
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Paula Hansen Suss
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil.,School of Medicine, Health Sciences Department, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Felipe Francisco Tuon
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil. .,School of Medicine, Health Sciences Department, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155, Curitiba, Paraná, 80215-901, Brazil.
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14
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Abstract
Dental implants are widely used in the field of oral restoration, but there are still problems leading to implant failures in clinical application, such as failed osseointegration, marginal bone resorption, and peri-implantitis, which restrict the success rate of dental implants and patient satisfaction. Poor osseointegration and bacterial infection are the most essential reasons resulting in implant failure. To improve the clinical outcomes of implants, many scholars devoted to modifying the surface of implants, especially to preparing different physical and chemical modifications to improve the osseointegration between alveolar bone and implant surface. Besides, the bioactive-coatings to promote the adhesion and colonization of ossteointegration-related proteins and cells also aim to improve the osseointegration. Meanwhile, improving the anti-bacterial performance of the implant surface can obstruct the adhesion and activity of bacteria, avoiding the occurrence of inflammation related to implants. Therefore, this review comprehensively investigates and summarizes the modifying or coating methods of implant surfaces, and analyzes the ossteointegration ability and anti-bacterial characteristics of emerging functional coatings in published references.
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Heidari F, Tabatabaei FS, Razavi M, Lari RB, Tavangar M, Romanos GE, Vashaee D, Tayebi L. 3D construct of hydroxyapatite/zinc oxide/palladium nanocomposite scaffold for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:85. [PMID: 33000320 DOI: 10.1007/s10856-020-06409-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
The purpose of this study was to produce and characterize Hydroxyapatite/Zinc Oxide/Palladium (HA/0.05 wt% ZnO/0.1 wt% Pd) nanocomposite scaffolds and study their mechanical and antibacterial properties, biocompatibility and bioactivity. The initial materials were developed using sol-gel and precipitation methods. Scaffolds were characterized using atomic absorption analysis (AA), scanning electron microcopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM), atomic force microscopy (AFM) and Brunauer-EmmeS-Teller (BET) method. Furthermore, the bioactivity of scaffolds in simulated body fluid (SBF) and the interaction of dental pulp stem cells (DPSCs) with the nanocomposite scaffolds were assessed. Our results showed that the HA/ZnO/Pd (H1), HA/ZnO/Pd coated by 0.125 g chitosan (H2) and HA/ZnO/Pd coated by 0.25 g chitosan (H3) scaffolds possess higher compressive strength and toughness and lower microhardness and density compared to the pure HA (H0) scaffolds. Immersion of samples in SBF showed the deposition of apatite on the surface of the scaffolds. The biocompatibility assay indicated lower cell proliferation on the H1, H2 and H3 in comparison to the H0. The antibacterial results obtained show a significant impact by loading Pd/ZnO on HA in the deactivation of microorganisms in vitro.
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Affiliation(s)
- Fatemeh Heidari
- Department of Materials Engineering, School of Engineering, Yasouj University, Yasouj, 75918-74934, Iran.
| | - Fahimeh Sadat Tabatabaei
- Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
| | - Mehdi Razavi
- Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
| | - Reza Bazargan Lari
- Department of Materials Science and Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Mina Tavangar
- Department of Materials Engineering, School of Engineering, Yasouj University, Yasouj, 75918-74934, Iran
| | - Georgios E Romanos
- Stony Brook University, School of Dental Medicine, Stony Brook, NY, 11794, USA
| | - Daryoosh Vashaee
- Department of Electrical and Computer Engineering, NC State University, Raleigh, NC, 27695, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
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16
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Verma AS, Sharma A, Kumar A, Mukhopadhyay A, Kumar D, Dubey AK. Multifunctional Response of Piezoelectric Sodium Potassium Niobate (NKN)-Toughened Hydroxyapatite-Based Biocomposites. ACS APPLIED BIO MATERIALS 2020; 3:5287-5299. [DOI: 10.1021/acsabm.0c00642] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alok Singh Verma
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ankur Sharma
- High Temperature and Energy Materials Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology (IIT) Bombay, Mumbai 400076, India
| | - Ajay Kumar
- High Temperature and Energy Materials Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology (IIT) Bombay, Mumbai 400076, India
| | - Amartya Mukhopadhyay
- High Temperature and Energy Materials Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology (IIT) Bombay, Mumbai 400076, India
| | - Devendra Kumar
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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17
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Wojnarowicz J, Chudoba T, Lojkowski W. A Review of Microwave Synthesis of Zinc Oxide Nanomaterials: Reactants, Process Parameters and Morphoslogies. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1086. [PMID: 32486522 PMCID: PMC7353225 DOI: 10.3390/nano10061086] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/11/2020] [Accepted: 05/19/2020] [Indexed: 12/18/2022]
Abstract
Zinc oxide (ZnO) is a multifunctional material due to its exceptional physicochemical properties and broad usefulness. The special properties resulting from the reduction of the material size from the macro scale to the nano scale has made the application of ZnO nanomaterials (ZnO NMs) more popular in numerous consumer products. In recent years, particular attention has been drawn to the development of various methods of ZnO NMs synthesis, which above all meet the requirements of the green chemistry approach. The application of the microwave heating technology when obtaining ZnO NMs enables the development of new methods of syntheses, which are characterised by, among others, the possibility to control the properties, repeatability, reproducibility, short synthesis duration, low price, purity, and fulfilment of the eco-friendly approach criterion. The dynamic development of materials engineering is the reason why it is necessary to obtain ZnO NMs with strictly defined properties. The present review aims to discuss the state of the art regarding the microwave synthesis of undoped and doped ZnO NMs. The first part of the review presents the properties of ZnO and new applications of ZnO NMs. Subsequently, the properties of microwave heating are discussed and compared with conventional heating and areas of application are presented. The final part of the paper presents reactants, parameters of processes, and the morphology of products, with a division of the microwave synthesis of ZnO NMs into three primary groups, namely hydrothermal, solvothermal, and hybrid methods.
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Affiliation(s)
- Jacek Wojnarowicz
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (T.C.); (W.L.)
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18
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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: 118] [Impact Index Per Article: 29.5] [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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19
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Ye J, Deng J, Chen Y, Yang T, Zhu Y, Wu C, Wu T, Jia J, Cheng X, Wang X. Cicada and catkin inspired dual biomimetic antibacterial structure for the surface modification of implant material. Biomater Sci 2019; 7:2826-2832. [PMID: 31065627 DOI: 10.1039/c9bm00082h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Implant infections frequently occur in various kinds of surgery. Apart from antibiotics, the surface modification of implant material is a promising avenue to resolve this global problem. An ideal implant interface is expected to possess good biocompatibility, as well as broad-spectrum and long-term bacterial inhibition capabilities. Here, a delicate cicada and catkin inspired dual biomimetic structure was proposed, for the first time, to improve the antibacterial properties of implant material. By using poly(ether-ether-ketone) (PEEK) as a model implant, the relative in vitro and in vivo evaluations demonstrated that this dual biomimetic structure could simultaneously provide less bacterial adhesion, wider antimicrobial range and longer antibacterial durability. Meanwhile, the modified implant also retained ideal biocompatibility. Most importantly, the relative dual biomimetic structure engineering process could be accomplished through a simple, economic and fast hydrothermal chemical reaction, which might have an impact on the development of future biomedical materials.
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Affiliation(s)
- Jing Ye
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, NanChang, 330006, P.R. China.
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20
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Bužarovska A, Dinescu S, Lazar AD, Serban M, Pircalabioru GG, Costache M, Gualandi C, Avérous L. Nanocomposite foams based on flexible biobased thermoplastic polyurethane and ZnO nanoparticles as potential wound dressing materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109893. [PMID: 31500045 DOI: 10.1016/j.msec.2019.109893] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/26/2019] [Accepted: 06/12/2019] [Indexed: 11/16/2022]
Abstract
In the present study biobased and soft thermoplastic polyurethane (TPU), obtained by polymerization from fatty acids, was used to produce TPU/ZnO nanocomposite foams by thermally induced phase separation method (TIPS). The produced foams were characterized and evaluated regarding their potential uses as wound dressing materials. The structure and morphology of the prepared flexible polymer foams with different content of ZnO nanofiller (1, 2, 5 and 10 wt% related to the polymer) were studied by Fourier transform infrared spectroscopy (FTIR) and Scanning electron microscopy (SEM). Highly porous nanocomposite structure made of interconnected pores with dimensions between 10 and 60 μm was created allowing water vapor transmission rate (WVTR) up to 8.9 mg/cm2·h. The TPU/ZnO foams, tested for their ability to support cells and their growth, showed highest cell proliferation for TPU nanocomposite foams with 2 and 5 wt% ZnO. Overall, the nanocomposite foams displayed a low cytotoxic potential (varied proportionally to the ZnO content) and good biocompatibility. All tested nanocomposite foams were found to be significantly active against biofilms formed by different Gram-positive (Enterococcus faecalis and Staphylococcus aureus) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria. Based on their behaviors, flexible TPU/ZnO nanocomposite foams can be considered for biomedical applications such as potential active wound dressing.
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Affiliation(s)
- Aleksandra Bužarovska
- Faculty of Technology and Metallurgy, Sts Cyril and Methodius University, Rudjer Boskovic 16, 1000 Skopje, Macedonia.
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, Spl. Independentei 91-95, 050095 Bucharest, Romania
| | - Andreea D Lazar
- Department of Biochemistry and Molecular Biology, University of Bucharest, Spl. Independentei 91-95, 050095 Bucharest, Romania
| | - Mirela Serban
- Department of Biochemistry and Molecular Biology, University of Bucharest, Spl. Independentei 91-95, 050095 Bucharest, Romania
| | - Gratiela G Pircalabioru
- Research Institute of University of Bucharest, University of Bucharest, Spl. Independentei 91-95, 050095 Bucharest, Romania
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, Spl. Independentei 91-95, 050095 Bucharest, Romania
| | - Chiara Gualandi
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy; Advanced Mechanics and Materials - Interdepartmental Center, University of Bologna, Viale del Risorgimento 2, 40123 Bologna, Italy
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 67087 Strasbourg Cedex 2, France
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21
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Kamaruzzaman NF, Tan LP, Hamdan RH, Choong SS, Wong WK, Gibson AJ, Chivu A, Pina MDF. Antimicrobial Polymers: The Potential Replacement of Existing Antibiotics? Int J Mol Sci 2019; 20:E2747. [PMID: 31167476 PMCID: PMC6600223 DOI: 10.3390/ijms20112747] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 12/22/2022] Open
Abstract
Antimicrobial resistance is now considered a major global challenge; compromising medical advancements and our ability to treat infectious disease. Increased antimicrobial resistance has resulted in increased morbidity and mortality due to infectious diseases worldwide. The lack of discovery of novel compounds from natural products or new classes of antimicrobials, encouraged us to recycle discontinued antimicrobials that were previously removed from routine use due to their toxicity, e.g., colistin. Since the discovery of new classes of compounds is extremely expensive and has very little success, one strategy to overcome this issue could be the application of synthetic compounds that possess antimicrobial activities. Polymers with innate antimicrobial properties or that have the ability to be conjugated with other antimicrobial compounds create the possibility for replacement of antimicrobials either for the direct application as medicine or implanted on medical devices to control infection. Here, we provide the latest update on research related to antimicrobial polymers in the context of ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) pathogens. We summarise polymer subgroups: compounds containing natural peptides, halogens, phosphor and sulfo derivatives and phenol and benzoic derivatives, organometalic polymers, metal nanoparticles incorporated into polymeric carriers, dendrimers and polymer-based guanidine. We intend to enhance understanding in the field and promote further work on the development of polymer based antimicrobial compounds.
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Affiliation(s)
- Nor Fadhilah Kamaruzzaman
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Li Peng Tan
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Ruhil Hayati Hamdan
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Siew Shean Choong
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Weng Kin Wong
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
| | - Amanda Jane Gibson
- Royal Veterinary College, Pathobiology and Population Sciences, Hawkshead Lane, North Mymms, Hatfield AL9 7TA, UK.
| | - Alexandru Chivu
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, UK.
| | - Maria de Fatima Pina
- Medicines and Healthcare Regulatory Products Agency, 10 South Colonnade, Canary Wharf, London E14 4PU, UK.
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22
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Garino N, Sanvitale P, Dumontel B, Laurenti M, Colilla M, Izquierdo-Barba I, Cauda V, Vallet-Regì M. Zinc oxide nanocrystals as a nanoantibiotic and osteoinductive agent. RSC Adv 2019; 9:11312-11321. [PMID: 31024686 PMCID: PMC6478122 DOI: 10.1039/c8ra10236h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 03/27/2019] [Indexed: 11/21/2022] Open
Abstract
In this paper we aim to analyse the behaviour of ZnO nanocrystals (ZnO NCs), prepared with a new synthetic approach and not embedded in any composite matrix, for bone implant applications in vitro. In particular, we have developed a novel, fast and reproducible microwave-assisted synthesis, to obtain highly-crystalline, round-shaped ZnO NCs of 20 nm in diameter as an extremely-stable colloidal solution in ethanol. The nanocrystals were also partially chemically functionalized by anchoring amino-propyl groups to the ZnO surface (ZnO-NH2 NCs). Thus, the role of both ZnO NC concentration and surface chemistry were tested in terms of biocompatibility towards pre-osteoblast cells, promotion of cell proliferation and differentiation, and also in terms of antimicrobial activity against Gram positive and negative bacteria, such as Escherichia coli and Staphylococcus aureus, respectively. The results suggest that ZnO-NH2 NCs is the most promising candidate to solve infectious disease in bone implants and at the same time promote bone tissue proliferation, even at high concentrations. Although further investigations are needed to clarify the mechanism underlying the inhibition of biofilm formation and to investigate the role of the ZnO-NH2 NCs in in vivo assays, we demonstrated that fine and reproducible control over the chemical and structural parameters in ZnO nanomaterials can open up new horizons in the use of functionalized ZnO NCs as a highly biocompatible and osteoinductive nanoantibiotic agent for bone tissue engineering.
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Affiliation(s)
- Nadia Garino
- Department of Applied Science and Technology, Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TurinItaly
- Istituto Italiano di Tecnologia, Center for Sustainable Future TechnologiesVia Livorno 6010144 TorinoItaly
| | - Pasquale Sanvitale
- Department of Applied Science and Technology, Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TurinItaly
| | - Bianca Dumontel
- Department of Applied Science and Technology, Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TurinItaly
| | - Marco Laurenti
- Department of Applied Science and Technology, Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TurinItaly
| | - Montserrat Colilla
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de MadridPlaza Ramón y Cajal s/n28040 MadridSpain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN)MadridSpain
| | - Isabel Izquierdo-Barba
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de MadridPlaza Ramón y Cajal s/n28040 MadridSpain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN)MadridSpain
| | - Valentina Cauda
- Department of Applied Science and Technology, Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TurinItaly
| | - Maria Vallet-Regì
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de MadridPlaza Ramón y Cajal s/n28040 MadridSpain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN)MadridSpain
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23
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Antibacterial effect and biocompatibility of a novel nanostructured ZnO-coated gutta-percha cone for improved endodontic treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:840-848. [DOI: 10.1016/j.msec.2018.07.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 06/18/2018] [Accepted: 07/18/2018] [Indexed: 11/21/2022]
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24
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Singh A, Dubey AK. Various Biomaterials and Techniques for Improving Antibacterial Response. ACS APPLIED BIO MATERIALS 2018. [DOI: 10.1021/acsabm.8b00033] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Angaraj Singh
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi-221005, Uttar Pradesh, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi-221005, Uttar Pradesh, India
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25
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Natan M, Banin E. From Nano to Micro: using nanotechnology to combat microorganisms and their multidrug resistance. FEMS Microbiol Rev 2018; 41:302-322. [PMID: 28419240 DOI: 10.1093/femsre/fux003] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 01/17/2017] [Indexed: 12/12/2022] Open
Abstract
The spread of antibiotic resistance and increasing prevalence of biofilm-associated infections is driving demand for new means to treat bacterial infection. Nanotechnology provides an innovative platform for addressing this challenge, with potential to manage even infections involving multidrug-resistant (MDR) bacteria. The current review summarizes recent progress over the last 2 years in the field of antibacterial nanodrugs, and describes their unique properties, mode of action and activity against MDR bacteria and biofilms. Biocompatibility and commercialization are also discussed. As opposed to the more common division of nanoparticles (NPs) into organic- and inorganic-based materials, this review classifies NPs into two functional categories. The first includes NPs exhibiting intrinsic antibacterial properties and the second is devoted to NPs serving as a cargo for delivering antibacterial agents. Antibacterial nanomaterials used to decorate medical devices and implants are reviewed here as well.
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Affiliation(s)
- Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.,The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.,The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel
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26
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Enhanced antibacterial activity and biocompatibility of zinc-incorporated organic-inorganic nanocomposite coatings via electrophoretic deposition. Colloids Surf B Biointerfaces 2017; 160:628-638. [DOI: 10.1016/j.colsurfb.2017.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/15/2017] [Accepted: 10/03/2017] [Indexed: 12/20/2022]
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27
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Laurenti M, Cauda V. ZnO Nanostructures for Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E374. [PMID: 29113133 PMCID: PMC5707591 DOI: 10.3390/nano7110374] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/01/2017] [Accepted: 11/02/2017] [Indexed: 12/02/2022]
Abstract
This review focuses on the most recent applications of zinc oxide (ZnO) nanostructures for tissue engineering. ZnO is one of the most investigated metal oxides, thanks to its multifunctional properties coupled with the ease of preparing various morphologies, such as nanowires, nanorods, and nanoparticles. Most ZnO applications are based on its semiconducting, catalytic and piezoelectric properties. However, several works have highlighted that ZnO nanostructures may successfully promote the growth, proliferation and differentiation of several cell lines, in combination with the rise of promising antibacterial activities. In particular, osteogenesis and angiogenesis have been effectively demonstrated in numerous cases. Such peculiarities have been observed both for pure nanostructured ZnO scaffolds as well as for three-dimensional ZnO-based hybrid composite scaffolds, fabricated by additive manufacturing technologies. Therefore, all these findings suggest that ZnO nanostructures represent a powerful tool in promoting the acceleration of diverse biological processes, finally leading to the formation of new living tissue useful for organ repair.
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Affiliation(s)
- Marco Laurenti
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy.
| | - Valentina Cauda
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy.
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28
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Ullah S, Zainol I, Idrus RH. Incorporation of zinc oxide nanoparticles into chitosan-collagen 3D porous scaffolds: Effect on morphology, mechanical properties and cytocompatibility of 3D porous scaffolds. Int J Biol Macromol 2017; 104:1020-1029. [DOI: 10.1016/j.ijbiomac.2017.06.080] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/07/2017] [Accepted: 06/17/2017] [Indexed: 01/09/2023]
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29
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Miao X, Liao H, Deng Z, Li C, Wu T, Zhang H, Liu M, Cheng X, Wang X. “Dandelion” Inspired Dual-Layered Nanoarrays with Two Model Releasing Features for the Surface Modification of 3D Printing Implants. ACS Biomater Sci Eng 2017; 3:2259-2266. [PMID: 33445285 DOI: 10.1021/acsbiomaterials.7b00456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xinxin Miao
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Hang Liao
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Zhongbo Deng
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Chen Li
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Tianlong Wu
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Huiqing Zhang
- Department
of Burnt Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Miaoxing Liu
- Institute
of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xigao Cheng
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Xiaolei Wang
- Department
of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
- Institute
of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
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30
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Efficacy of a mouthrinse based on hydroxyapatite to reduce initial bacterial colonisation in situ. Arch Oral Biol 2017; 80:18-26. [DOI: 10.1016/j.archoralbio.2017.03.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 02/15/2017] [Accepted: 03/17/2017] [Indexed: 12/30/2022]
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31
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Eliaz N, Metoki N. Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E334. [PMID: 28772697 PMCID: PMC5506916 DOI: 10.3390/ma10040334] [Citation(s) in RCA: 393] [Impact Index Per Article: 56.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 03/15/2017] [Accepted: 03/22/2017] [Indexed: 02/06/2023]
Abstract
Calcium phosphate (CaP) bioceramics are widely used in the field of bone regeneration, both in orthopedics and in dentistry, due to their good biocompatibility, osseointegration and osteoconduction. The aim of this article is to review the history, structure, properties and clinical applications of these materials, whether they are in the form of bone cements, paste, scaffolds, or coatings. Major analytical techniques for characterization of CaPs, in vitro and in vivo tests, and the requirements of the US Food and Drug Administration (FDA) and international standards from CaP coatings on orthopedic and dental endosseous implants, are also summarized, along with the possible effect of sterilization on these materials. CaP coating technologies are summarized, with a focus on electrochemical processes. Theories on the formation of transient precursor phases in biomineralization, the dissolution and reprecipitation as bone of CaPs are discussed. A wide variety of CaPs are presented, from the individual phases to nano-CaP, biphasic and triphasic CaP formulations, composite CaP coatings and cements, functionally graded materials (FGMs), and antibacterial CaPs. We conclude by foreseeing the future of CaPs.
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Affiliation(s)
- Noam Eliaz
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv 6997801, Israel.
| | - Noah Metoki
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv 6997801, Israel.
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32
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Barros J, Grenho L, Fontenente S, Manuel CM, Nunes OC, Melo LF, Monteiro FJ, Ferraz MP. Staphylococcus aureusandEscherichia colidual-species biofilms on nanohydroxyapatite loaded with CHX or ZnO nanoparticles. J Biomed Mater Res A 2016; 105:491-497. [DOI: 10.1002/jbm.a.35925] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/14/2016] [Accepted: 10/03/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Joana Barros
- FEUP - Faculdade de Engenharia, Departamento de Engenharia Metalúrgica e Materiais; Universidade do Porto; Portugal
- i3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Portugal
| | - Liliana Grenho
- FEUP - Faculdade de Engenharia, Departamento de Engenharia Metalúrgica e Materiais; Universidade do Porto; Portugal
- i3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Portugal
| | - Sílvia Fontenente
- i3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Portugal
- IPATIMUP - Institute of Molecular Pathology and Immunology of the University of Porto; Portugal
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Departamento de Engenharia Química; Universidade do Porto; Portugal
| | - Cândida M. Manuel
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Departamento de Engenharia Química; Universidade do Porto; Portugal
- ULP-Universidade Lusófona do Porto; Portugal
| | - Olga C. Nunes
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Departamento de Engenharia Química; Universidade do Porto; Portugal
| | - Luís F. Melo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Departamento de Engenharia Química; Universidade do Porto; Portugal
| | - Fernando J. Monteiro
- FEUP - Faculdade de Engenharia, Departamento de Engenharia Metalúrgica e Materiais; Universidade do Porto; Portugal
- i3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Portugal
| | - Maria P. Ferraz
- FP-ENAS/CEBIMED; University Fernando Pessoa Energy, Environment and Health Research Unit/Biomedical Research Center; Porto Portugal
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33
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Chen WY, Yang RC, Wang HM, Zhang L, Hu K, Li CH, You R, Yin L, Guan YQ. Self-Assembled Heterojunction Carbon Nanotubes Synergizing with Photoimmobilized IGF-1 Inhibit Cellular Senescence. Adv Healthc Mater 2016; 5:2413-26. [PMID: 27385628 DOI: 10.1002/adhm.201600359] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/03/2016] [Indexed: 12/11/2022]
Abstract
Synthesis of artificial and functional structures for bone tissue engineering has been well recognized but the associated cell senescence issue remains much less concerned so far. In this work, surface-modified polycaprolactone-polylactic acid scaffolds using self-assembled heterojunction carbon nanotubes (sh-CNTs) combined with insulin-like growth factor-1 are synthesized and a series of structural and biological characterizations are carried out, with particular attention to cell senescence mechanism. It is revealed that the modified scaffolds can up-regulate the expressions of alkaline phosphates and bone morphogenetic proteins while down-regulate the expressions of senescence-related proteins in mesenchymal stem cells, demonstrating the highly preferred anti-senescence functionality of the sh-CNTs modified scaffolds in bone tissue engineering. Furthermore, it is also found that with sh-CNTs, scaffolds can accelerate bone healing with extremely low toxicity in vivo.
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Affiliation(s)
- Wu-Ya Chen
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Run-Cai Yang
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Hui-Min Wang
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Li Zhang
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Kaikai Hu
- College of Biophotonics; South China Normal University; Guangzhou 510631 P. R. China
| | - Chu-Hua Li
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Rong You
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Liang Yin
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
| | - Yan-Qing Guan
- School of Life Science; South China Normal University; Guangzhou 510631 P. R. China
- College of Biophotonics; South China Normal University; Guangzhou 510631 P. R. China
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34
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35
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García-Gareta E, Davidson C, Levin A, Coathup MJ, Blunn GW. Biofilm formation in total hip arthroplasty: prevention and treatment. RSC Adv 2016. [DOI: 10.1039/c6ra09583f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
This review assesses the current knowledge on treatments, pathogenesis and the prevention of infections associated with orthopaedic implants, with a focus on total hip arthroplasty.
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Affiliation(s)
| | - Christopher Davidson
- John Scales Centre for Biomedical Engineering
- Institute of Orthopaedics and Musculoskeletal Science
- Division of Surgery and Interventional Science
- University College London
- Royal National Orthopaedic Hospital
| | - Alexandra Levin
- RAFT Institute of Plastic Surgery
- Mount Vernon Hospital
- Northwood HA6 2RN
- UK
| | - Melanie J. Coathup
- John Scales Centre for Biomedical Engineering
- Institute of Orthopaedics and Musculoskeletal Science
- Division of Surgery and Interventional Science
- University College London
- Royal National Orthopaedic Hospital
| | - Gordon W. Blunn
- John Scales Centre for Biomedical Engineering
- Institute of Orthopaedics and Musculoskeletal Science
- Division of Surgery and Interventional Science
- University College London
- Royal National Orthopaedic Hospital
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