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Butler J, Morgan S, Jones L, Upton M, Besinis A. Evaluating the antibacterial efficacy of a silver nanocomposite surface coating against nosocomial pathogens as an antibiofilm strategy to prevent hospital infections. Nanotoxicology 2024; 18:410-436. [PMID: 39051684 DOI: 10.1080/17435390.2024.2379809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/27/2024]
Abstract
Antimicrobial nanocoatings may be a means of preventing nosocomial infections, which account for significant morbidity and mortality. The role of hospital sink traps in these infections is also increasingly appreciated. We describe the preparation, material characterization and antibacterial activity of a pipe cement-based silver nanocoating applied to unplasticized polyvinyl chloride, a material widely used in wastewater plumbing. Three-dimensional surface topography imaging and scanning electron microscopy showed increased roughness in all surface finishes versus control, with grinding producing the roughest surfaces. Silver stability within nanocoatings was >99.89% in deionized water and bacteriological media seeded with bacteria. The nanocoating exhibited potent antibiofilm (99.82-100% inhibition) and antiplanktonic (99.59-99.99% killing) activity against three representative bacterial species and a microbial community recovered from hospital sink traps. Hospital sink trap microbiota were characterized by sequencing the 16S rRNA gene, revealing the presence of opportunistic pathogens from genera including Pseudomonas, Enterobacter and Clostridioides. In a benchtop model sink trap system, nanocoating antibiofilm activity against this community remained significant after 11 days but waned following 25 days. Silver nanocoated disks in real-world sink traps in two university buildings had a limited antibiofilm effect, even though in vitro experiments using microbial communities recovered from the same traps demonstrated that the nanocoating was effective, reducing biofilm formation by >99.6% and killing >98% of planktonic bacteria. We propose that conditioning films forming in the complex conditions of real-world sink traps negatively impact nanocoating performance, which may have wider relevance to development of antimicrobial nanocoatings that are not tested in the real-world.
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Affiliation(s)
- James Butler
- School of Engineering, Computing and Mathematics, Faculty of Science and Engineering, University of Plymouth, Plymouth, United Kingdom
| | - Sian Morgan
- School of Engineering, Computing and Mathematics, Faculty of Science and Engineering, University of Plymouth, Plymouth, United Kingdom
| | - Lewis Jones
- Clinical Microbiology, University Hospitals Plymouth NHS Trust, Plymouth, United Kingdom
| | - Mathew Upton
- School of Biomedical Sciences, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - Alexandros Besinis
- School of Engineering, Computing and Mathematics, Faculty of Science and Engineering, University of Plymouth, Plymouth, United Kingdom
- Peninsula Dental School, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
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2
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Niu Y, Zhang Y, Huo H, Jin X, Wang J. Effect of silver sulfadiazine on mature mixed bacterial biofilms on voice prostheses. J Otolaryngol Head Neck Surg 2023; 52:74. [PMID: 37990258 PMCID: PMC10664368 DOI: 10.1186/s40463-023-00672-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/29/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Biofilm formation on voice prostheses disrupts the function and limits the lifespan of voice prostheses. There is still no effective clinical strategy for inhibiting or removing these biofilms. Silver sulfadiazine (SSD), as an exogenous antibacterial agent, has been widely used in the prevention and treatment of infection, however, its effect on voice prosthesis biofilms is unknown. The purpose of this study was to explore the effect of SSD on the mature mixed bacterial biofilms present on voice prostheses. METHODS Quantitative and qualitative methods, including the plate counting method, real-time fluorescence quantitative PCR, crystal violet staining, the 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide) (XTT) reduction assay, scanning electron microscopy, and laser confocal microscopy, were used to determine the effect of SSD on the number of bacterial colonies, biofilm formation ability, metabolic activity, and ultrastructure of biofilms in a mature mixed bacterial (Staphylococcus aureus, Streptococcus faecalis and Candida albicans) voice prosthesis biofilm model. The results were verified in vitro on mature mixed bacterial voice prosthesis biofilms from patients, and the possible mechanism of action was explored. RESULTS Silver sulfadiazine decreased the number of bacterial colonies on mature mixed bacterial voice prosthesis biofilm, significantly inhibited the biofilm formation ability and metabolic activity of mature voice prosthesis biofilms, inhibited the formation of the complex spatial structure of voice prosthesis biofilms, and inhibited the synthesis of polysaccharides and proteins in the biofilm extracellular matrix. The degree of inhibition and removal effect increased with SSD concentration. CONCLUSIONS Silver sulfadiazine can effectively inhibit and remove mature mixed bacterial voice prosthesis biofilms and decrease biofilm formation ability and metabolic activity; SSD may exert these effects by inhibiting the synthesis of polysaccharides and proteins among the extracellular polymeric substances of voice prosthesis biofilms.
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Affiliation(s)
- Yanyan Niu
- Department of Otolaryngology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# ShuaiFuYuan, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Yongli Zhang
- Department of Otolaryngology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# ShuaiFuYuan, Dongcheng District, Beijing, 100730, People's Republic of China
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Hong Huo
- Department of Otolaryngology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# ShuaiFuYuan, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Xiaofeng Jin
- Department of Otolaryngology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# ShuaiFuYuan, Dongcheng District, Beijing, 100730, People's Republic of China.
| | - Jian Wang
- Department of Otolaryngology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# ShuaiFuYuan, Dongcheng District, Beijing, 100730, People's Republic of China.
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Allkja J, Roudbary M, Alves AMV, Černáková L, Rodrigues CF. Biomaterials with antifungal strategies to fight oral infections. Crit Rev Biotechnol 2023:1-13. [PMID: 37587010 DOI: 10.1080/07388551.2023.2236784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 08/18/2023]
Abstract
Oral fungal infections pose a threat to human health and increase the economic burden of oral diseases by prolonging and complicating treatment. A cost-effective strategy is to try to prevent these infections from happening in the first place. With this purpose, biomaterials with antifungal properties are a crucial element to overcome fungal infections in the oral cavity. In this review, we go through different kinds of biomaterials and coatings that can be used to functionalize them. We also review their potential as a therapeutic approach in addition to prophylaxis, by going through traditional and alternative antifungal compounds, e.g., essential oils, that could be incorporated in them, to enhance their efficacy against fungal pathogens. We aim to highlight the potential of these technologies and propose questions that need to be addressed in prospective research. Finally, we intend to concatenate the key aspects and technologies on the use of biomaterials in oral health, to create an easy to find summary of the current state-of-the-art for researchers in the field.
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Affiliation(s)
- Jontana Allkja
- Faculty of Engineering, LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, University of Porto, Porto, Portugal
- Faculty of Engineering, ALiCE - Associate Laboratory in Chemical Engineering, University of Porto, Porto, Portugal
- School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, Oral Sciences Research Group, Glasgow Dental School, University of Glasgow, Glasgow, UK
| | - Maryam Roudbary
- Sydney Infectious Disease Institute, University of Sydney, Sydney, Australia
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Anelise Maria Vasconcelos Alves
- Faculty of Engineering, LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, University of Porto, Porto, Portugal
- Faculty of Engineering, ALiCE - Associate Laboratory in Chemical Engineering, University of Porto, Porto, Portugal
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Redenção, Brazil
| | - Lucia Černáková
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University Bratislava, Bratislava, Slovakia
| | - Célia Fortuna Rodrigues
- Faculty of Engineering, LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, University of Porto, Porto, Portugal
- Faculty of Engineering, ALiCE - Associate Laboratory in Chemical Engineering, University of Porto, Porto, Portugal
- 1H-TOXRUN - One Health Toxicology Research Unit, Cooperativa de Ensino Superior Politécnico e Universitário - CESPU, Gandra PRD, Portugal
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Salaie RN, Hassan PA, Meran ZD, Hamad SA. Antibacterial Activity of Dissolved Silver Fractions Released from Silver-Coated Titanium Dental Implant Abutments: A Study on Streptococcus mutans Biofilm Formation. Antibiotics (Basel) 2023; 12:1097. [PMID: 37508193 PMCID: PMC10376167 DOI: 10.3390/antibiotics12071097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
(1) Background: The aim of this research was to investigate the antibacterial activity of dissolved silver from silver-coated titanium implants against Streptococcus mutans. (2) Methodology: Silver-coated titanium implant discs were immersed in 1.8 mL of brain heart infusion broth (BHIB) and incubated for 24 h in order to release the silver ions into the broth. The coating quality was confirmed via EDS, and the dissolved silver was measured via inductively coupled plasma mass spectrometry (ICP-MS). The experimental design used unconditioned broth (control) and broth conditioned with silver released from silver-coated titanium implants (n = 6). Regarding the antibacterial activity, isolated Streptococcus mutans was used. A turbidity test and lactate production test were performed to determine the effect of dissolved silver on bacterial growth in a suspension and biofilm formation. (3) Result: The results showed that the coating was successfully applied on the substrate. There was around 0.3 mg/L of silver released into the BHIB, and the turbidity of the control group was significantly higher than the treatment, with measured absorbance values of 1.4 and 0.8, respectively, indicating that the dissolved silver ions from the silver-coated titanium discs exhibited some degree of antibacterial activity by preventing the growth of Streptococcus mutans. However, the results of the antibiofilm activity test did not show any significant difference between the groups. (4) Conclusion: The dissolved silver from silver-coated titanium implants has an antibacterial activity but not a significant antimicrobial activity, indicating that the dissolved silver from silver-coated titanium abutments can significantly reduce the incidence of peri-implant mucositis.
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Affiliation(s)
- Ranj Nadhim Salaie
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tishk International University, Erbil 44001, Iraq
| | - Pakhshan A Hassan
- Department of Biology, College of Science, Salahaddin University, Erbil 44001, Iraq
| | - Zhala Dara Meran
- Department of Prosthodontics, College of Dentistry, Hawler Medical University, Erbil 44001, Iraq
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Butler J, Handy RD, Upton M, Besinis A. Review of Antimicrobial Nanocoatings in Medicine and Dentistry: Mechanisms of Action, Biocompatibility Performance, Safety, and Benefits Compared to Antibiotics. ACS NANO 2023; 17:7064-7092. [PMID: 37027838 PMCID: PMC10134505 DOI: 10.1021/acsnano.2c12488] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This review discusses topics relevant to the development of antimicrobial nanocoatings and nanoscale surface modifications for medical and dental applications. Nanomaterials have unique properties compared to their micro- and macro-scale counterparts and can be used to reduce or inhibit bacterial growth, surface colonization and biofilm development. Generally, nanocoatings exert their antimicrobial effects through biochemical reactions, production of reactive oxygen species or ionic release, while modified nanotopographies create a physically hostile surface for bacteria, killing cells via biomechanical damage. Nanocoatings may consist of metal nanoparticles including silver, copper, gold, zinc, titanium, and aluminum, while nonmetallic compounds used in nanocoatings may be carbon-based in the form of graphene or carbon nanotubes, or composed of silica or chitosan. Surface nanotopography can be modified by the inclusion of nanoprotrusions or black silicon. Two or more nanomaterials can be combined to form nanocomposites with distinct chemical or physical characteristics, allowing combination of different properties such as antimicrobial activity, biocompatibility, strength, and durability. Despite their wide range of applications in medical engineering, questions have been raised regarding potential toxicity and hazards. Current legal frameworks do not effectively regulate antimicrobial nanocoatings in matters of safety, with open questions remaining about risk analysis and occupational exposure limits not considering coating-based approaches. Bacterial resistance to nanomaterials is also a concern, especially where it may affect wider antimicrobial resistance. Nanocoatings have excellent potential for future use, but safe development of antimicrobials requires careful consideration of the "One Health" agenda, appropriate legislation, and risk assessment.
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Affiliation(s)
- James Butler
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Richard D. Handy
- School
of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Mathew Upton
- School
of Biomedical Sciences, Faculty of Health, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United
Kingdom
| | - Alexandros Besinis
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
- Peninsula
Dental School, Faculty of Health, University
of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
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Bhattacharjee R, Negi A, Bhattacharya B, Dey T, Mitra P, Preetam S, Kumar L, Kar S, Das SS, Iqbal D, Kamal M, Alghofaili F, Malik S, Dey A, Jha SK, Ojha S, Paiva-Santos AC, Kesari KK, Jha NK. Nanotheranostics to Target Antibiotic-resistant Bacteria: Strategies and Applications. OPENNANO 2023. [DOI: 10.1016/j.onano.2023.100138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Sarraj S, Szymiczek M, Jurczyk S. Influence of Herbal Fillers Addition on Selected Properties of Silicone Subjected to Accelerated Aging. Polymers (Basel) 2022; 15:polym15010042. [PMID: 36616391 PMCID: PMC9823497 DOI: 10.3390/polym15010042] [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: 11/24/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
This work aims to assess the impact of the type and percentage of powdered herbs on selected properties of silicone-based composites. The matrix was an addition cross-linked platinum-cured polydimethylsiloxane. The fillers were powdered thyme and sage, which were introduced at 5, 10, and 15 wt.%. The introduced fillers differed in composition, morphology, and grain size. The grain morphology showed differences in the size and shape of the introduced fillers. The qualitative and quantitative assessment resulting from the incorporation was conducted based on tests of selected properties: density, wettability, rebound resilience, hardness, and tensile strength. The incorporation slightly affected the density and wettability of the silicone. Rebound resilience and hardness results differed depending on the filler type and fraction. However, tensile strength decreased, which may be due to the matrix's distribution of fillers and their chemical composition. Antibacterial activity evaluation against S. aureus proved the bacteriostatic properties of the composites. Accelerated aging in PBS solution further deteriorated the mechanical properties. FTIR and DSC have demonstrated the progressive aging of the materials. In addition, the results showed an overall minimal effect of fillers on the silicone chemical backbone and melting temperature. The developed materials can be used in applications that do not require high mechanical properties.
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Affiliation(s)
- Sara Sarraj
- Department of Theoretical and Applied Mechanics, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland
- Correspondence: ; Tel.: +48-32-237-13-48
| | - Małgorzata Szymiczek
- Department of Theoretical and Applied Mechanics, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland
| | - Sebastian Jurczyk
- Łukasieiwcz Research Network—Institute for Engineering of Polymer Materials and Dyes, M. Sklodowska-Curie 55, 87-100 Toruń, Poland
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8
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Huang LZY, Elbourne A, Shaw ZL, Cheeseman S, Goff A, Orrell-Trigg R, Chapman J, Murdoch BJ, Crawford RJ, Friedmann D, Bryant SJ, Truong VK, Caruso RA. Dual-action silver functionalized nanostructured titanium against drug resistant bacterial and fungal species. J Colloid Interface Sci 2022; 628:1049-1060. [PMID: 36049281 DOI: 10.1016/j.jcis.2022.08.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/20/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
HYPOTHESIS Titanium and its alloys are commonly used implant materials. Once inserted into the body, the interface of the biomaterials is the most likely site for the development of implant-associated infections. Imparting the titanium substrate with high-aspect-ratio nanostructures, which can be uniformly achieved using hydrothermal etching, enables a mechanical contact-killing (mechanoresponsive) mechanism of bacterial and fungal cells. Interaction between cells and the surface shows cellular inactivation via a physical mechanism meaning that careful engineering of the interface is needed to optimse the technology. This mechanism of action is only effective towards surface adsorbed microbes, thus any cells not directly in contact with the substrate will survive and limit the antimicrobial efficacy of the titanium nanostructures. Therefore, we propose that a dual-action mechanoresponsive and chemical-surface approach must be utilised to improve antimicrobial activity. The addition of antimicrobial silver nanoparticles will provide a secondary, chemical mechanism to escalate the microbial response in tandem with the physical puncture of the cells. EXPERIMENTS Hydrothermal etching is used as a facile method to impart variant nanostrucutres on the titanium substrate to increase the antimicrobial response. Increasing concentrations (0.25 M, 0.50 M, 1.0 M, 2.0 M) of sodium hydroxide etching solution were used to provide differing degrees of nanostructured morphology on the surface after 3 h of heating at 150 °C. This produced titanium nanospikes, nanoblades, and nanowires, respectively, as a function of etchant concentration. These substrates then provided an interface for the deposition of silver nanoparticles via a reduction pathway. Methicillin-resistant Staphylococcous aureus (MRSA) and Candida auris (C. auris) were used as model bacteria and fungi, respectively, to test the effectiveness of the nanostructured titanium with and without silver nanoparticles, and the bio-interactions at the interface. FINDINGS The presence of nanostructure increased the bactericidal response of titanium against MRSA from ∼ 10 % on commercially pure titanium to a maximum of ∼ 60 % and increased the fungicidal response from ∼ 10 % to ∼ 70 % in C. auris. Introducing silver nanoparticles increased the microbiocidal response to ∼ 99 % towards both bacteria and fungi. Importantly, this study highlights that nanostructure alone is not sufficient to develop a highly antimicrobial titanium substrate. A dual-action, physical and chemical antimicrobial approach is better suited to produce highly effective antibacterial and antifungal surface technologies.
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Affiliation(s)
- Louisa Z Y Huang
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Aaron Elbourne
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia.
| | - Z L Shaw
- School of Engineering, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Samuel Cheeseman
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Abigail Goff
- School of Engineering, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Rebecca Orrell-Trigg
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - James Chapman
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Billy J Murdoch
- RMIT Microscopy and Microanalysis Facility, RMIT University, Melbourne, Victoria 3000, Australia
| | - Russell J Crawford
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Donia Friedmann
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia; School of Chemical Engineering, UNSW Engineering, UNSW, Sydney, New South Wales 2052, Australia
| | - Saffron J Bryant
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Vi Khanh Truong
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia; College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.
| | - Rachel A Caruso
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia.
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9
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Zhao H, Bai N, Zhang Q, Wang Y, Jiang W, Yang J. Preparation of mussel-inspired silver/polydopamine antibacterial biofilms on Ti-6Al-4V for dental applications. RSC Adv 2022; 12:6641-6648. [PMID: 35424626 PMCID: PMC8982268 DOI: 10.1039/d1ra06634j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/22/2022] [Indexed: 11/21/2022] Open
Abstract
The properties of osseointegration and antibacterial ability is vital import for dental materials. Herein, we designed the multilayer TC4-Ag-polydopamine coatings, to provide TC4 with slow-release antibacterial properties whilst maintaining cytocompatibility. In brief, thickness of Ag inner layer can be easily controlled by magnetron sputtering technology. The resulting top polydopamine layer protected the Ag well from corrosion and gave a sustained release of Ag+ up to one month. In addition, the prepared TC4-Ag-polydopamine samples with Ag thickness of 20 and 30 nm, showed high hydrophilic performance with the contact-angle less than 20°, low cytotoxicity and good cytocompatibility. Expectedly, it could become a prospective candidate for future slow-release antibacterial dental materials.
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Affiliation(s)
- Hongmei Zhao
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
| | - Na Bai
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
| | - Qian Zhang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
| | - Ying Wang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
| | - Wenjing Jiang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
| | - Jianjun Yang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China .,School of Stomatology of Qingdao University Qingdao 266003 China
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10
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Wang Y, Zhang Q, Tan Y, Lv W, Zhao C, Xiong M, Hou K, Wu M, Ren Y, Zeng N, Wu Y. Current Progress in Breast Implant-Associated Anaplastic Large Cell Lymphoma. Front Oncol 2022; 11:785887. [PMID: 35070989 PMCID: PMC8770274 DOI: 10.3389/fonc.2021.785887] [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: 09/29/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is an uncommon type of T-cell lymphoma. Although with a low incidence, the epidemiological data raised the biosafety and health concerns of breast reconstruction and breast augmentation for BIA-ALCL. Emerging evidence confirms that genetic features, bacterial contamination, chronic inflammation, and textured breast implant are the relevant factors leading to the development of BIA-ALCL. Almost all reported cases with a medical history involve breast implants with a textured surface, which reflects the role of implant surface characteristics in BIA-ALCL. With this review, we expect to highlight the most significant features on etiology, pathogenesis, diagnosis, and therapy of BIA-ALCL, as well as we review the physical characteristics of breast implants and their potential pathogenic effect and hopefully provide a foundation for optimal choice of type of implant with minimal morbidity.
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Affiliation(s)
- Yichen Wang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yufang Tan
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenchang Lv
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chongru Zhao
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mingchen Xiong
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Hou
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Wu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuping Ren
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Zeng
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiping Wu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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11
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Parameswari BD, Dhevishri S, Ranjith R, Annapoorni H. Nanoparticles in Prosthetic Materials: A Literature Review. J Pharm Bioallied Sci 2021; 13:S917-S920. [PMID: 35017898 PMCID: PMC8686885 DOI: 10.4103/jpbs.jpbs_280_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/21/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022] Open
Abstract
The commonly used prosthodontic materials are resins, ceramics, metals and silicones. A comprehensive review of literature was completed about the incorporation of nanomaterials in prosthetic dentistry using PubMed and Google Scholar databases. This was supplemented with a manual search of selected journals. English language articles in peer- reviewed journals were selected. Current literature reveals that incorporation of nanomaterials has significantly improved the properties of the prosthetic materials within the clinically acceptable ranges. There appears to be a need for a standardization for these in vitro studies carried out to evaluate their physical, mechanical and antimicrobial properties
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Affiliation(s)
- B Devi Parameswari
- Associate Professor, Department of Prosthodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Ammal Higher Institute of Education and Research Chennai, Tamil Nadu, India
| | - S Dhevishri
- Post graduate student, Department of Prosthodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Ammal Higher Institute of Education and Research Chennai, Tamil Nadu, India
| | - R Ranjith
- Post graduate student, Department of Prosthodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Ammal Higher Institute of Education and Research Chennai, Tamil Nadu, India
| | - H Annapoorni
- HOD and Professor, Department of Prosthodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Ammal Higher Institute of Education and Research Chennai, Tamil Nadu, India
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Tsikopoulos A, Petinaki E, Festas C, Tsikopoulos K, Meroni G, Drago L, Skoulakis C. In vitro Inhibition of Biofilm Formation on Silicon Rubber Voice Prosthesis: Α Systematic Review and Meta-Analysis. ORL J Otorhinolaryngol Relat Spec 2021; 84:10-29. [PMID: 34182551 DOI: 10.1159/000516345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 04/02/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Biofilm formation on voice prostheses is the primary reason for their premature implant dysfunction. Multiple strategies have been proposed over the last decades to achieve inhibition of biofilm formation on these devices. The purpose of this study was to assess the results of the available in vitro biofilm inhibition modalities on silicone rubber voice prostheses. METHODS We conducted a systematic search in PubMed, Embase, and the Cochrane Central Register of Controlled Trials databases up to February 29, 2020. A total of 33 in vitro laboratory studies investigating the efficacy of different coating methods against Candida, Staphylococcus, Streptococcus, Lactobacilli, and Rothia biofilm growth on silicone rubber medical devices were included. Subgroup analysis linked to the type of prevention modality was carried out, and quality assessment was performed with the use of the modified CONSORT tool. RESULTS Data from 33 studies were included in qualitative analysis, of which 12 qualified for quantitative analysis. For yeast biofilm formation assessment, there was a statistically significant difference in favor of the intervention group (standardized mean difference [SMD] = -1.20; 95% confidence interval [CI] [-1.73, -0.66]; p < 0.0001). Subgroup analysis showed that combined methods (active and passive surface modification) are the most effective for biofilm inhibition in yeast (SMD = -2.53; 95% CI [-4.02, -1.03]; p = 0.00001). No statistically significant differences between intervention and control groups were shown for bacterial biofilm inhibition (SMD = -0.09; 95% CI [-0.68, 0.46]; p = 0.65), and the results from the subgroup analysis found no notable differences between the surface modification methods. After analyzing data on polymicrobial biofilms, a statistically significant difference in favor of prevention methods in comparison with the control group was detected (SMD = -2.59; 95% CI [-7.48, 2.31]; p = 0.30). CONCLUSIONS The meta-analysis on biofilm inhibition demonstrated significant differences in favor of yeast biofilm inhibition compared to bacteria. A stronger inhibition with the application of passive or combined active and passive surface modification techniques was reported.
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Affiliation(s)
- Alexios Tsikopoulos
- Department of Otorhinolaryngology, School of Medicine, University of Thessaly, Larissa, Greece
| | - Efi Petinaki
- Department of Biopathology and Clinical Microbiology, School of Medicine, University of Thessaly, Larissa, Greece
| | - Charalampos Festas
- Department of Otorhinolaryngology, 401 Army General Training Hospital, Athens, Greece
| | | | - Gabriele Meroni
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Lorenzo Drago
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Charalampos Skoulakis
- Department of Otorhinolaryngology, School of Medicine, University of Thessaly, Larissa, Greece
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13
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Staroń A, Długosz O. Antimicrobial properties of nanoparticles in the context of advantages and potential risks of their use. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:680-693. [PMID: 33979267 DOI: 10.1080/10934529.2021.1917936] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
The popularity of nanotechnology results from the possibility of obtaining materials that have better chemical, electrical, thermal, mechanical, or optical properties. Nano-sized materials are characterized by an increased surface area, which improves their chemical reactivity and mobility. Due to their enhanced reactivity and appropriately small size, some nanoparticles are used as antimicrobial and antifungal agents. Nanoparticles exhibit antimicrobial potential through multifaceted mechanisms. The adhesion of nanoparticles to microbial cells, and reactive oxygen species, and their penetration inside the cells, have been recognized as the most prominent modes of antimicrobial action. This review presents the mechanism of action of nanometals and oxide nanoparticles used as antimicrobials and the mechanisms of bacterial resistance to the toxic effects of nanoparticles. The article presents methods of forming microorganism resistance to the toxic effects of nanoparticles and the negative impact of nanoparticles on human health.
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Affiliation(s)
- Anita Staroń
- Department of Engineering and Chemical Technology, Cracow University of Technology, Cracow, Poland
| | - Olga Długosz
- Department of Engineering and Chemical Technology, Cracow University of Technology, Cracow, Poland
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Grigore R, Popescu B, Berteşteanu ŞVG, Nichita C, Oașă ID, Munteanu GS, Nicolaescu A, Bejenaru PL, Simion-Antonie CB, Ene D, Ene R. The Role of Biomaterials in Upper Digestive Tract Transoral Reconstruction. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1436. [PMID: 33809490 PMCID: PMC8001622 DOI: 10.3390/ma14061436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/17/2021] [Accepted: 03/12/2021] [Indexed: 11/18/2022]
Abstract
This study aims to establish whether the use of biomaterials, particularly polydimethylsiloxane (PDMS), for surgical reconstruction of the esophagus with templates, Montgomery salivary tube, after radical oncology surgery for malignant neoplasia is an optimal choice for patients' safety and for optimal function preservation and organ rehabilitation. Structural analysis by Raman spectrometry and biomechanical properties with dynamic mechanical analysis are performed for fatigue strength and toughness, essential factors in durability of a prosthesis in the reconstruction practice of the esophagus. Nanocomposites with silicone elastomers and nanoparticles used in implantable devices and in reconstruction surgery present risks of infection and fatigue strength when required to perform a mechanical effort for long periods of time. This report takes into account the effect of silver (Ag) nanoparticles on the fatigue strength using polydimethylsiloxane (PDMS) matrix, representative for silicon elastomers used in implantable devices. PDMS with 5% (wt) Ag nanoparticles of 100-150 nm during mechanical fatigue testing at shear strength loses elasticity properties after 400 loading-unloading cycles and up to 15% shear strain. The fatigue strength, toughness, maximum shear strength, as well as clinical properties are key issues in designing Montgomery salivary tube and derivates with appropriate biomechanical behavior for each patient. Prosthesis design needs to indulge both clinical outcomes as well as design methods and research in the field of biomaterials.
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Affiliation(s)
- Raluca Grigore
- Otorhynolaryngology Department, Colțea Clinical Hospital, 917151 Bucharest, Romania; (R.G.); (Ş.V.G.B.); (I.D.O.)
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Bogdan Popescu
- Otorhynolaryngology Department, Colțea Clinical Hospital, 917151 Bucharest, Romania; (R.G.); (Ş.V.G.B.); (I.D.O.)
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Şerban Vifor Gabriel Berteşteanu
- Otorhynolaryngology Department, Colțea Clinical Hospital, 917151 Bucharest, Romania; (R.G.); (Ş.V.G.B.); (I.D.O.)
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Cornelia Nichita
- 3Nano-SAE Res Center, Faculty of Physics, University of Bucharest, 077125 Bucharest-Magurele, Romania;
- National Institute for Chemical-Pharmaceutical Research and Development, 031299 Bucharest, Romania
| | - Irina Doinita Oașă
- Otorhynolaryngology Department, Colțea Clinical Hospital, 917151 Bucharest, Romania; (R.G.); (Ş.V.G.B.); (I.D.O.)
| | - Gloria Simona Munteanu
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
- Otorhynolaryngology Department, “Carol Davila” Emergency University Military Hospital, 010825 Bucharest, Romania
| | - Alexandru Nicolaescu
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Paula Luiza Bejenaru
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Catrinel Beatrice Simion-Antonie
- Department 12-Otorhynolaryngology, Ophtalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (G.S.M.); (A.N.); (P.L.B.); (C.B.S.-A.)
| | - Dragoș Ene
- General Surgery Department, Emergency Clinical Hospital, 917151 Bucharest, Romania;
- Department 10-General Surgery, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Răzvan Ene
- Orthopedics and Trauma Department, Emergency Clinical Hospital, 917151 Bucharest, Romania;
- Department 14-Orthopedics, Anaesthesia Intensive Care Unit, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
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Chong WX, Lai YX, Choudhury M, Amalraj FD. Efficacy of incorporating silver nanoparticles into maxillofacial silicone against Staphylococcus aureus, Candida albicans, and polymicrobial biofilms. J Prosthet Dent 2021; 128:1114-1120. [PMID: 33685653 DOI: 10.1016/j.prosdent.2021.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 10/22/2022]
Abstract
STATEMENT OF PROBLEM The presence of biofilms on maxillofacial silicone increases the risk of infections and reduces durability. Whether silver nanoparticles (AgNPs) with potent antimicrobial effects help reduce biofilm formation is unclear. PURPOSE The purpose of this in vitro study was to assess the antimicrobial effect of sub 10-nm AgNPs in maxillofacial silicone against Staphylococcus aureus, Candida albicans, and mixed species biofilms containing both and to test the effectiveness of different AgNP concentrations against all 3 biofilms in vitro. MATERIAL AND METHODS Silicone disks (M511; Technovent Ltd) containing 0.0% (control), 0.1%, and 0.5% AgNPs were fabricated and treated with S. aureus, C. albicans, and mixed species strains of both in 24-well culture plates containing appropriate media. Each well received a 0.1-mL aliquot of the standardized suspension of microorganisms. The plates were incubated for 21 consecutive days, and colony-forming units per milliliter (CFU/mL) were measured on the first, third, fifth, seventh, fifteenth, and twenty-first day with the Miles and Misra method. Data were analyzed by 2-way ANOVA and the paired t test to evaluate the relationship between AgNP concentration, microbial strain, and time (α=.05). Mean CFU/mL differences for each time and for each biofilm category were assessed by repeated measure ANOVA. RESULTS AgNPs decreased the mean CFU/mL in both concentrations compared with the control. The 0.1% concentration showed sustained efficacy throughout the test, while the 0.5% concentration had high efficacy initially with a gradual decrease. However, the results were inconsistent for the mixed biofilm. The paired sample t test at day 3 and 15 and day 3 and 21 showed statistically significantly different results (P<.001) in all but 1 group in the 0.5% concentration. The 2-way mixed ANOVA showed statistically significant (P<.001) interaction between AgNP concentration and time in all groups. The 1-way ANOVA of AgNP concentrations was statistically significantly different (P<.001) for all time points. A statistically significant (P<.001) effect of time on CFU/mL was found for all the AgNP concentration groups in all 3 biofilms. CONCLUSIONS Silicone elastomers with sub 10-nm AgNPs displayed antimicrobial properties in vitro against S. aureus, C. albicans, and mixed species strains. AgNPs (0.1%) were effective against both microbial strains and can provide a baseline for further long-term studies regarding antimicrobial efficacy, silver ion leaching, and cellular internalization. Mixed species biofilm needs further exploration with standardized study parameters.
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Affiliation(s)
- Wen Xin Chong
- Graduate student, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Yee Xuan Lai
- Graduate student, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Minati Choudhury
- Senior Lecturer, Clinical Dentistry, International Medical University, Kuala Lumpur, Malaysia.
| | - Fabian Davamani Amalraj
- Senior Lecturer, Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Kuala Lumpur, Malaysia
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16
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Lam M, Migonney V, Falentin-Daudre C. Review of silicone surface modification techniques and coatings for antibacterial/antimicrobial applications to improve breast implant surfaces. Acta Biomater 2021; 121:68-88. [PMID: 33212233 DOI: 10.1016/j.actbio.2020.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/19/2022]
Abstract
Silicone implants are widely used in the medical field for plastic or reconstructive surgeries for the purpose of soft tissue issues. However, as with any implanted object, healthcare-associated infections are not completely avoidable. The material suffers from a lack of biocompatibility and is often subject to bacterial/microbial infections characterized by biofilm growth. Numerous strategies have been developed to either prevent, reduce, or fight bacterial adhesion by providing an antibacterial property. The present review summarizes the diverse approaches to deal with bacterial infections on silicone surfaces along with the different methods to activate/oxidize the surface before any surface modifications. It includes antibacterial coatings with antibiotics or nanoparticles, covalent attachment of active bacterial molecules like peptides or polymers. Regarding silicone surfaces, the activation step is essential to render the surface reactive for any further modifications using energy sources (plasma, UV, ozone) or chemicals (acid solutions, sol-gel strategies, chemical vapor deposition). Meanwhile, corresponding work on breast silicone prosthesis is discussed. The latter is currently in the line of sight for causing severe capsular contractures. Specifically, to that end, besides chemical modifications, the antibacterial effect can also be achieved by physical surface modifications by adjusting the surface roughness and topography for instance.
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17
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Mok ZH, Proctor G, Thanou M. Emerging nanomaterials for dental treatments. Emerg Top Life Sci 2020; 4:613-625. [PMID: 33200780 PMCID: PMC7752085 DOI: 10.1042/etls20200195] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 01/08/2023]
Abstract
The emergence of nanomaterials for dental treatments is encouraged by the nanotopography of the tooth structure, together with the promising benefits of nanomedicine. The use of nanoparticles in dentistry, also termed as 'nanodentistry', has manifested in applications for remineralisation, antimicrobial activity, local anaesthesia, anti-inflammation, osteoconductivity and stem cell differentiation. Besides the applications on dental tissues, nanoparticles have been used to enhance the mechanical properties of dental composites, improving their bonding and anchorage and reducing friction. The small particle size allows for enhanced permeation into deeper lesions, and reduction in porosities of dental composites for higher mechanical strength. The large surface area to volume ratio allows for enhanced bioactivity such as bonding and integration, and more intense action towards microorganisms. Controlled release of encapsulated bioactive molecules such as drugs and growth factors enables them to be delivered more precisely, with site-targeted delivery for localised treatments. These properties have benefitted across multiple fields within dentistry, including periodontology and endodontics and reengineering of dental prosthetics and braces. This review summarises the current literature on the emerging field of nanomaterials for dental treatments.
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Affiliation(s)
- Zi Hong Mok
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, U.K
| | - Gordon Proctor
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, U.K
| | - Maya Thanou
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, U.K
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18
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Gómez-Núñez MF, Castillo-López M, Sevilla-Castillo F, Roque-Reyes OJ, Romero-Lechuga F, Medina-Santos DI, Martínez-Daniel R, Peón AN. Nanoparticle-Based Devices in the Control of Antibiotic Resistant Bacteria. Front Microbiol 2020; 11:563821. [PMID: 33324356 PMCID: PMC7723998 DOI: 10.3389/fmicb.2020.563821] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022] Open
Abstract
Antimicrobial resistance (AR) is one of the most important public health challenges worldwide as it represents a serious complication that is able to increase the mortality, morbidity, disability, hospital stay and economic burden related to infectious diseases. As such, the spread of AR–pathogens must be considered as an emergency, and interdisciplinary approaches must be undertaken in order to develop not only drugs, but holistic strategies to undermine the epidemic and pathogenic potentials of multi-drug resistant (MDR) pathogens. One of such approaches has focused on the use of antimicrobial nanoparticles (ANPs), as they have demonstrated to possess strong antimicrobial effects on MDR pathogens. On the other hand, the ability of bacteria to develop resistance to such agents is minimal. In this way, ANPs may seem a good choice for the development of new drugs, but there is no certainty about their safety, which may delay its translation to the clinical setting. As MDR pathogens are quickly becoming more prevalent and drug development is slow and expensive, there is an increasing need for the rapid development of new strategies to control such agents. We hereby explore the possibility of designing ANP-based devices such as surgical masks and fabrics, wound dressings, catheters, prostheses, dentifrices, water filters, and nanoparticle-coated metals to exploit the potential of such materials in the combat of MDR pathogens, with a good potential for translation into the clinical setting.
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Affiliation(s)
- Mario F Gómez-Núñez
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
| | - Mariel Castillo-López
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
| | - Fernando Sevilla-Castillo
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
| | - Oscar J Roque-Reyes
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
| | - Fernanda Romero-Lechuga
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
| | - Diana I Medina-Santos
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Ricardo Martínez-Daniel
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico
| | - Alberto N Peón
- Laboratory of Biomedicine Santiago Ramón y Cajal, Sociedad Española de Beneficencia, Pachuca, Mexico.,Laboratorio de Microbiología, Escuela Superior de Apan, Universidad Autónoma del Estado de Hidalgo, Pachuca, Mexico
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19
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Sonnahalli NK, Chowdhary R. Effect of nanoparticles on color stability and mechanical and biological properties of maxillofacial silicone elastomer: A systematic review. J Indian Prosthodont Soc 2020; 20:244-254. [PMID: 33223694 PMCID: PMC7654200 DOI: 10.4103/jips.jips_429_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/26/2020] [Accepted: 03/27/2020] [Indexed: 01/24/2023] Open
Abstract
Aim: The aim of this systematic review was to evaluate the effect of addition of various nanoparticles into maxillofacial silicone elastomer on color stability and mechanical and biological properties of the silicone elastomer. Settings and Design: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines(PRISMA). Materials and Methods: The electronic database search in MEDLINE/PubMed was based on population (silicone elastomer), intervention (nanoparticles), comparison (unreinforced silicone elastomer with nanoparticle-reinforced silicone elastomer), outcome (color stability and mechanical, physical, and biological properties), i.e., PICO framework. The key words used are (”maxillofacial silicone” OR “silicone elastomer” OR “facial silicone”) AND (”nanoparticles” OR “Nano-oxides”) AND (”colour stability” OR “Hardness,” “tensile strength” OR “tear strength” OR “antifungal activity”). Results: The database search resulted in 2099 studies, of which 2066 articles were excluded as they were irrelevant, duplicates, and data were not available. The remaining 33 full-text articles were assessed for eligibility, out of which 2 articles were in Chinese language, 3 articles were thesis documents, and 8 were review articles. A total of 12 articles were excluded and the remaining 20 articles were included. One article was yielded by hand search of references of included studies. A total of 21 studies were included in the present systematic review. Conclusion: With the available evidence in the literature, it can be concluded that addition of nanoparticles at various concentrations may improve the physical and mechanical properties and color stability of the prosthesis made from the silicone elastomers.
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Affiliation(s)
| | - Ramesh Chowdhary
- Department of Prosthodontics, Raja Rajeswari Dental College and Hospital, Bengaluru, Karnataka, India
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20
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Powell SK, Cruz RLJ, Ross MT, Woodruff MA. Past, Present, and Future of Soft-Tissue Prosthetics: Advanced Polymers and Advanced Manufacturing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001122. [PMID: 32909302 DOI: 10.1002/adma.202001122] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/23/2020] [Indexed: 06/11/2023]
Abstract
Millions of people worldwide experience disfigurement due to cancers, congenital defects, or trauma, leading to significant psychological, social, and economic disadvantage. Prosthetics aim to reduce their suffering by restoring aesthetics and function using synthetic materials that mimic the characteristics of native tissue. In the 1900s, natural materials used for thousands of years in prosthetics were replaced by synthetic polymers bringing about significant improvements in fabrication and greater realism and utility. These traditional methods have now been disrupted by the advanced manufacturing revolution, radically changing the materials, methods, and nature of prosthetics. In this report, traditional synthetic polymers and advanced prosthetic materials and manufacturing techniques are discussed, including a focus on prosthetic material degradation. New manufacturing approaches and future technological developments are also discussed in the context of specific tissues requiring aesthetic restoration, such as ear, nose, face, eye, breast, and hand. As advanced manufacturing moves from research into clinical practice, prosthetics can begin new age to significantly improve the quality of life for those suffering tissue loss or disfigurement.
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Affiliation(s)
- Sean K Powell
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Rena L J Cruz
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Maureen T Ross
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Maria A Woodruff
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
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21
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Quintero-Quiroz C, Botero LE, Zárate-Triviño D, Acevedo-Yepes N, Escobar JS, Pérez VZ, Cruz Riano LJ. Synthesis and characterization of a silver nanoparticle-containing polymer composite with antimicrobial abilities for application in prosthetic and orthotic devices. Biomater Res 2020; 24:13. [PMID: 32817803 PMCID: PMC7425163 DOI: 10.1186/s40824-020-00191-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/22/2020] [Indexed: 01/24/2023] Open
Abstract
Background The presence of skin problems in patients using external lower limb prosthesis is recurrent. This has generated the need to develop interfaces for prosthesis with the ability to control microbial growth. Silver nanoparticles (AgNPs) have been implemented in the development of biomaterials because of their high antimicrobial activity. This article discusses the development of an AgNP-containing polymer composite with antimicrobial activity for developing prosthetic liners. Methods AgNPs were synthesized using a photochemical method and certain physicochemical properties were characterized. Furthermore, the antimicrobial activity of AgNPs against Staphylococcus aureus ATCC 25923 and methicillin-resistant Staphylococcus aureus (MRSA), was assessed on the basis of their minimum inhibitory concentrations (MICs). AgNPs were incorporated into a silicon elastomer to assess certain physicomechanical properties, antimicrobial activity and cytotoxic effect of the material. Results The maximum antimicrobial activity of the material against Staphylococcus aureus ATCC 25923 and MRSA was 41.58% ±2.97% at AgNP concentration of 32.98 μg/mL and 14.85% ±5.94% at AgNP concentration of 16.49 μg/mL, respectively. Additionally, the material exhibited tensile yield strength, rupture tensile strength, and tensile modulus of elasticity of 0.70 - 1.10 MPa, 0.71–1.06 MPa, and 0.20 - 0.30 MPa, respectively. The mechanical characteristics of the material were within the acceptable range for use in external lower limb prosthetic and orthotic interfaces. Conclusions It was possible to incorporate the AgNPs in a silicone elastomer, finding that the composite developed presented antimicrobial activity against Staphylococcus aureus ATCC 25923 and MRSA when compared to non-AgNP material samples.
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Affiliation(s)
- Catalina Quintero-Quiroz
- Centro de Bioingeniería, Grupo de investigaciones en Bioingeniería, Universidad Pontificia Bolivariana, circular 1 No. 73-76, Medellín, 050031 Colombia
| | - Luz E Botero
- Grupo de Investigación de Biología de Sistemas,Universidad Pontificia Bolivariana, Cl 78B No. 72A-109, Medellín, 050031 Colombia
| | - Diana Zárate-Triviño
- Laboratorio de Inmunología y Virología, Universidad Autónoma de Nuevo León, Ave. Pedro de Alba S/N Ciudad Universitaria San Nicolás de los Garza, Monterrey, 64450 México
| | - Natalia Acevedo-Yepes
- Centro de Bioingeniería, Grupo de investigaciones en Bioingeniería, Universidad Pontificia Bolivariana, circular 1 No. 73-76, Medellín, 050031 Colombia
| | - Jorge Saldarriaga Escobar
- Grupo de Investigación Sobre Nuevos Materiales, Universidad Pontificia Bolivariana, Cq.1 No. 70-01, Medellín, 050031 Colombia
| | - Vera Z Pérez
- Centro de Bioingeniería, Grupo de investigaciones en Bioingeniería, Universidad Pontificia Bolivariana, circular 1 No. 73-76, Medellín, 050031 Colombia.,Facultad de Ingeniería Eléctrica y Electrónica, Cq.1 No. 70-01, Medellín, 050031 Colombia
| | - Luis Javier Cruz Riano
- Grupo de Investigación Sobre Nuevos Materiales, Universidad Pontificia Bolivariana, Cq.1 No. 70-01, Medellín, 050031 Colombia
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Sonnahalli NK, Chowdhary R. Effect of adding silver nanoparticle on physical and mechanical properties of maxillofacial silicone elastomer material-an in-vitro study. J Prosthodont Res 2020; 64:431-435. [PMID: 32063540 DOI: 10.1016/j.jpor.2019.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/06/2019] [Accepted: 12/03/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the impact of silver nanoparticle incorporation into maxillofacial silicone material on its hardness, tear strength and color stability. METHODS A total of 180 silicone specimens were fabricated according to the specification of American society for material and testing (ASTM) No. D142 and No. D624. The control samples were fabricated without silver nanoparticles and test samples were fabricate with 20 ppm concentration of silver nanoparticles. For outdoor weathering specimens were placed in a metal cage, which was suspended from the roof for a period of one month. Digital shore A hardness tests (Yuzuki, DIN 53505, ASTM D2240) was used to measure hardness, for tear strength the specimen was placed in the jaws of the universal testing machine (Lloyd instruments, LR 50 K) and stretched at a rate of 500 ram/rain, for color stability Spectrophotometer had been employed and the data recorded in the CIE L*a*b* system. The independent sample's "t" test was used to test significant differences. RESULTS The mean difference for hardness between control and test group was 0.54 and t value was 2.08 and (p < 0.05).tear strength 0.66 and "t" value was 0.93 and (p < 0.05) and for color stability it was -0.02 and t value was -0.92 and (p < 0.05). CONCLUSION The present study findings suggest that addition of silver nanoparticles at 20 ppm concentration decreased the hardness of Teksil 25(S25) silicone elastomer, and it did not affect tear strength and color stability.
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Affiliation(s)
- N K Sonnahalli
- Department of Prosthodontics Crown and Bridge and Implantology, Rajarajeswari Dental College and Hospital, No.14, Ramohalli Cross, Kumbalgodu, Mysore Road, Bangalore 560074, India.
| | - R Chowdhary
- Department of Prosthodontics, Rajarajeswari Dental College and Hospital, Bangalore, India
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23
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Salaie RN, Besinis A, Le H, Tredwin C, Handy RD. The biocompatibility of silver and nanohydroxyapatite coatings on titanium dental implants with human primary osteoblast cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110210. [PMID: 31761164 DOI: 10.1016/j.msec.2019.110210] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/30/2019] [Accepted: 09/16/2019] [Indexed: 12/22/2022]
Abstract
Silver nanoparticles (Ag NPs) are antimicrobial, with potential uses in medical implants, but Ag NPs alone can also be toxic to mammalian cells. This study aimed to enhance the biocompatibility of Ag NP-coated titanium dental implants with hydroxyapatite (HA) applied to the surface. Ti6Al4V discs were coated with Ag NPs, Ag NPs plus HA nanoparticles (Ag + nHA), or Ag NPs plus HA microparticles (Ag + mHA). The stability of coatings was explored and the biocompatibility with primary human osteoblasts over 7 days. Results showed that Ti6Al4V discs were successfully coated with silver and HA. The primary particle size of nHA and mHA were 23.90 ± 1.49 nm and 4.72 ± 0.38 μm respectively. Metal analysis showed that underlying silver coatings remain stable in DMEM culture media, but the presence of FBS in the media caused some initial (clinically beneficial) release of dissolved silver. With additions of HA, osteoblasts were adherent, had normal morphology, negligible lactate dehydrogenase (LDH) leak, and showed alkaline phosphatase (ALP) activity. Cell viability was around 70% throughout the Ag + nHA treatment. Overall, the implants coated with Ag + nHA maintained a higher degree of biocompatibility compared to those coated with Ag + mHA, or Ag NPs alone, suggesting the former has a benefit for clinical use.
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Affiliation(s)
- Ranj Nadhim Salaie
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Alexandros Besinis
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; School of Engineering, Faculty of Science and Engineering, University of Plymouth, UK; Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Huirong Le
- School of Mechanical Engineering and Built Environment, College of Engineering and Technology, University of Derby, UK
| | - Christopher Tredwin
- Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Richard D Handy
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; Visiting Professor, Department of Nutrition, Cihan University-Erbil, Kurdistan Region, Iraq.
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24
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Alheety NF, Majeed AH, Alheety MA. Silver Nanoparticles Anchored 5-methoxy benzimidazol thiomethanol (MBITM): Modulate, Characterization and Comparative Studies on MBITM and Ag-MBITM Antibacterial Activities. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1742-6596/1294/5/052026] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Gopalakrishnan S, Mathew T. A, Mozetič M, V. P. J, Jose J, Thomas S, Kalarikkal N. Development of biocompatible and biofilm-resistant silver-poly(methylmethacrylate) nanocomposites for stomatognathic rehabilitation. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1552863] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sandhya Gopalakrishnan
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
- Department of Prosthodontics, Government Dental College, Kottayam, India
| | - Aby Mathew T.
- Department of Prosthodontics, Pushpagiri College of Dental Sciences, Pushpagiri Medicity, Perumthuruthy, India
| | | | - Jayachandran V. P.
- Department of Applied Sciences, Higher College of Technology, Muscat, Sulthanate of Oman
| | - Jiya Jose
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, India
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, India
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