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Kaptan Usul S, Aslan A, Lüleci HB, Ergüden B. Effects of Hexagonal Boron Nitride and Mesoporous Silica Nanoparticles on the Morphology, Mechanical Properties and Antimicrobial Activity of Dental Composites. J CLUST SCI 2024. [DOI: 10.1007/s10876-024-02658-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 06/21/2024] [Indexed: 07/26/2024]
Abstract
AbstractHexagonal boron nitride (HBN), an artificial material with unique properties, is used in many industries. This article focuses on the extent to which hexagonal boron nitride and silica nanoparticles (MSN) affect the physicochemical and mechanical properties and antimicrobial activity of prepared dental composites. In this study, HBN, and MSN were used as additives in dental composites. 5% and 10% by weight of HBN are added to the structure of the composite materials. FTIR analysis were performed to determine the components of the produced boron nitride powders, hexagonal boron nitride-containing composites, and filling material applications. The structural and microstructural properties of dental composites have been extensively characterized using X-ray diffractometry (XRD). Surface morphology and distributions of nano boron nitride were determined by scanning electron microscopy (SEM)-EDS. In addition, the solubility of dental composites in water and their stability in water and chemical solution (Fenton) were determined by three repetitive experiments. Finally, the antimicrobial activity of dental composites was detected by using Minimum Inhibitory Concentration (MIC) measurement, as well as Minimum Fungicidal Concentration (MFC) method against yeast strain Saccharomyces cerevisiae, and Minimum Bactericidal Concentration (MBC) method against bacteria strains, Staphylococcus aureus and Escherichia coli. Since the HMP series have better antimicrobial activity than the HP series, they are more suitable for preventing dental caries and for long-term use of dental composites. In addition, when HMP and HP series added to the composite are compared, HMP-containing dental composites have better physicochemical and mechanical properties and therefore have a high potential for commercialization.
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Wang Y, Xiao S, Lv S, Wang X, Wei R, Ma Y. Mechanical and Antimicrobial Properties of Boron Nitride/Methacrylic Acid Quaternary Ammonium Composites Reinforced Dental Flowable Resins. ACS Biomater Sci Eng 2024; 10:1796-1807. [PMID: 38346133 DOI: 10.1021/acsbiomaterials.3c01786] [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] [Indexed: 03/12/2024]
Abstract
Dental resin composites (DRCs) are commonly used to restore teeth affected by dental caries or defects. These materials must possess excellent properties to withstand the complex oral environment. The objective of this study was to prepare and characterize Boron nitride nanosheets (BNN)/ dimethyl amino hexadecyl methacrylate (DMAHDM) composites (BNN/DMA), and to evaluate them as functional fillers to enhance the mechanical and antimicrobial properties of dental resins. The BNN/DMA composites were successfully prepared under the theoretical guidance of molecular dynamics (MD), and then the physicochemical and morphological characterization of the BNN/DMA composites were carried out by using various test methods, such as FT-IR, XRD, UV-vis spectroscopy, SEM, TEM, and AFM. It was doped into the dental flowable resin in a certain proportion, and the results showed that the flexural strength (FS), elastic modulus (EM), compressive strength (CS), and microhardness (MH) of the modified resin composites were increased by 53.29, 47.8, 97.59, and 37.1%, respectively, with the addition of 0.8 wt % of BNN/DMA composite fillers. It has a good inhibition effect on Streptococcus mutans, with an inhibition rate as high as 90.43%. Furthermore, this effect persists even after one month of aging. In conclusion, the modification of flowable resins with low-concentration BNN/DMA composites favorably integrates the mechanical properties and long-term antimicrobial activity of dental resins. At the same time, they have good biocompatibility and do not affect the aesthetics. The BNN/DMA composite modified flowable resin has the potential to become a new type of antimicrobial dental restorative material.
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Affiliation(s)
- Yuting Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Shengjie Xiao
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Siyi Lv
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Xiuzhi Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Rong Wei
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Yu Ma
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, Lanzhou University, Lanzhou 730000, PR China
- Biointerfaces Institute, University of Michigan, Ann Arbor,Michigan 48109, United States
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Beraldo CHM, Versteg A, Spinelli A, Scharnagl N, da Conceição TF. Anticorrosive properties of chitosan-derivatives coatings on Mg AZ31 alloy in Hank's Balanced Salt Solution. Int J Biol Macromol 2024; 260:129390. [PMID: 38218288 DOI: 10.1016/j.ijbiomac.2024.129390] [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: 05/19/2023] [Revised: 12/12/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
This study describes the preparation of chitosan-derivatives coatings on AZ31 Mg alloy for corrosion protection in Hank's Balanced Salt Solution (HBSS). The derivatives were prepared by reacting chitosan with natural aldehydes (vanillin, benzaldehyde and cinnamaldehyde) and the coatings were characterized by means of water contact angle, scanning electron microscopy and swelling essays. The corrosion behavior of the samples was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy and hydrogen evolution essays. All derivatives present superior corrosion protection than neat chitosan and the best performance is observed for the vanillin derivative with the highest modification degree, which present hydrogen evolution rate of 0.05 mL cm-2 day-1, below the tolerance limit for biomedical application, and |Z|max in the order of 104.6 Ω cm2 even after 14 days of exposure to the corrosive solution.
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Affiliation(s)
| | - Augusto Versteg
- Chemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Almir Spinelli
- Chemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Nico Scharnagl
- Helmholtz-Zentrum Hereon GmbH, Institute of Surface Science, Geesthacht 21502, Germany.
| | - Thiago Ferreira da Conceição
- Materials Engineering Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil; Chemistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil.
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Zhao Y, He P, Yao J, Li M, Wang B, Han L, Huang Z, Guo C, Bai J, Xue F, Cong Y, Cai W, Chu PK, Chu C. pH/NIR-responsive and self-healing coatings with bacteria killing, osteogenesis, and angiogenesis performances on magnesium alloy. Biomaterials 2023; 301:122237. [PMID: 37467596 DOI: 10.1016/j.biomaterials.2023.122237] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 06/24/2023] [Accepted: 07/02/2023] [Indexed: 07/21/2023]
Abstract
Although biodegradable polymer coatings can impede corrosion of magnesium (Mg)-based orthopedic implants, they are prone to excessive degradation and accidental scratching in practice. Bone implant-related infection and limited osteointegration are other factors that adversely impact clinical application of Mg-based biomedical implants. Herein, a self-healing polymeric coating is constructed on the Mg alloy together with incorporation of a stimuli-responsive drug delivery nanoplatform by a spin-spray layer-by-layer (SSLbL) assembly technique. The nanocontainers are based on simvastatin (SIM)-encapsulated hollow mesoporous silica nanoparticles (S@HMSs) modified with polydopamine (PDA) and polycaprolactone diacrylate (PCL-DA) bilayer. Owing to the dynamic reversible reactions, the hybrid coating shows a fast, stable, and cyclical water-enabled self-healing capacity. The antibacterial assay indicates good bacteria-killing properties under near infrared (NIR) irradiation due to synergistic effects of hyperthermia, reactive oxygens species (ROS), and SIM leaching. In vitro results demonstrate that NIR laser irradiation promotes the cytocompatibility, osteogenesis, and angiogenesis. The coating facilitates alkaline phosphatase activity and expedites extracellular matrix mineralization as well as expression of osteogenesis-related genes. This study reveals a useful strategy to develop multifunctional coatings on bioabsorbable Mg alloys for orthopedic implants.
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Affiliation(s)
- Yanbin Zhao
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Peng He
- Department of Orthopedics, The Affiliated Jinling Hospital of Nanjing Medical University, Nanjing, 211166, China
| | - Junyan Yao
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Mei Li
- Medical Research Center, Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Bin Wang
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, 210093, China
| | - Linyuan Han
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Zhihai Huang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Chao Guo
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Jing Bai
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Feng Xue
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Yu Cong
- Jinling Hospital Department of Orthopedics, Southeast University, School of Medicine, Nanjing, 210002, China.
| | - Weihua Cai
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chenglin Chu
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China; Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China.
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Saji VS. 2D hexagonal boron nitride (h-BN) nanosheets in protective coatings: A literature review. Heliyon 2023; 9:e19362. [PMID: 37681159 PMCID: PMC10481311 DOI: 10.1016/j.heliyon.2023.e19362] [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: 06/16/2023] [Revised: 08/18/2023] [Accepted: 08/20/2023] [Indexed: 09/09/2023] Open
Abstract
The layered 2D hexagonal boron nitride (h-BN) nanosheets (BNNSs) have received significant attention as effective fillers for composite protective coatings in anti-corrosion, anti-oxidation and anti-wear applications. Vapour deposited h-BN mono/multilayers are related classes well-recognized as protective thin films and coatings. This review comprehensively accounts for the research and development of BNNSs in protective coatings. Chemical vapour deposited (CVD) BN thin films and exfoliated BNNSs-incorporated composite polymer coatings are primarily discussed. Inorganic and nanocarbon-based composite coatings are also covered. Future research potentials are presented.
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Affiliation(s)
- Viswanathan S. Saji
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals, Dhahran - 31261, Saudi Arabia
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Li D, Dai D, Xiong G, Lan S, Zhang C. Composite Nanocoatings of Biomedical Magnesium Alloy Implants: Advantages, Mechanisms, and Design Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300658. [PMID: 37097626 PMCID: PMC10288271 DOI: 10.1002/advs.202300658] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/25/2023] [Indexed: 06/19/2023]
Abstract
The rapid degradation of magnesium (Mg) alloy implants erodes mechanical performance and interfacial bioactivity, thereby limiting their clinical utility. Surface modification is among the solutions to improve corrosion resistance and bioefficacy of Mg alloys. Novel composite coatings that incorporate nanostructures create new opportunities for their expanded use. Particle size dominance and impermeability may increase corrosion resistance and thereby prolong implant service time. Nanoparticles with specific biological effects may be released into the peri-implant microenvironment during the degradation of coatings to promote healing. Composite nanocoatings provide nanoscale surfaces to promote cell adhesion and proliferation. Nanoparticles may activate cellular signaling pathways, while those with porous or core-shell structures may carry antibacterial or immunomodulatory drugs. Composite nanocoatings may promote vascular reendothelialization and osteogenesis, attenuate inflammation, and inhibit bacterial growth, thus increasing their applicability in complex clinical microenvironments such as those of atherosclerosis and open fractures. This review combines the physicochemical properties and biological efficiency of Mg-based alloy biomedical implants to summarize the advantages of composite nanocoatings, analyzes their mechanisms of action, and proposes design and construction strategies, with the purpose of providing a reference for promoting the clinical application of Mg alloy implants and to further the design of nanocoatings.
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Affiliation(s)
- Dan Li
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Danni Dai
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Gege Xiong
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Shuquan Lan
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Chao Zhang
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
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7
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Doğan D, Karaduman FR, Horzum N, Metin AÜ. Boron nitride decorated poly(vinyl alcohol)/poly(acrylic acid) composite nanofibers: A promising material for biomedical applications. J Mech Behav Biomed Mater 2023; 141:105773. [PMID: 36934687 DOI: 10.1016/j.jmbbm.2023.105773] [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: 01/18/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 03/09/2023]
Abstract
In this study, polyvinyl alcohol (PVA) and polyacrylic acid (PAA) nanofibers loaded with boron nitride nanoparticles (mBN) were fabricated by using electrospinning and crosslinked by heat treatment. The physical, chemical, and mechanical properties, hydrophilic behavior, and degradability of composite nanofibers were evaluated. The mechanical properties such as elastic modulus, elongation percentage at the break, and mechanical strength of PVA/PAA nanofibers improved with mBN loading. The thermal conductivity of composite nanofibers reached 0.12 W/m·K at mBN content of 1.0 wt% due to the continuous heat conduction pathways of mBN. In the meantime, while there was no cytotoxicity recorded for both L929 and HUVEC cell lines for all composite nanofibers, the antimicrobial efficiency improved with the incorporation of mBN compared with PVA/PAA and recorded as 68.8% and 75.1% for Escherichia coli and Staphylococcus aureus, respectively. On this basis, the present work proposes a promising biomaterial for biomedical applications such as dual drug delivery, particularly including both hydrophobic and hydrophilic drugs or wound dressing.
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Affiliation(s)
- Deniz Doğan
- Department of Chemistry, Faculty of Science and Arts, Kırıkkale University, Yahşihan, 71450, Kırıkkale, Turkey
| | - F Rabia Karaduman
- Graduate School of Natural and Applied Sciences, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Nesrin Horzum
- Department of Engineering Sciences, Izmir Katip Çelebi University, Izmir, Turkey
| | - Ayşegül Ülkü Metin
- Department of Chemistry, Faculty of Science and Arts, Kırıkkale University, Yahşihan, 71450, Kırıkkale, Turkey.
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8
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Huang W, Mei D, Zhong Y, Li J, Zhu S, Chen Y, Wang L, Guan S. The enhanced antibacterial effect of BNNS_Van@CS/MAO coating on Mg alloy for orthopedic applications. Colloids Surf B Biointerfaces 2023; 221:112971. [DOI: 10.1016/j.colsurfb.2022.112971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/30/2022] [Accepted: 10/22/2022] [Indexed: 11/16/2022]
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9
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He N, Li J, Li W, Lin X, Fu Q, Peng X, Jin W, Yu Z, Chu PK. Poly(lactic acid) coating with a silane transition layer on MgAl LDH-coated biomedical Mg alloys for enhanced corrosion and cytocompatibility. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.130947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Sahoo J, Sarkhel S, Mukherjee N, Jaiswal A. Nanomaterial-Based Antimicrobial Coating for Biomedical Implants: New Age Solution for Biofilm-Associated Infections. ACS OMEGA 2022; 7:45962-45980. [PMID: 36570317 PMCID: PMC9773971 DOI: 10.1021/acsomega.2c06211] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/09/2022] [Indexed: 05/12/2023]
Abstract
Recently, the upsurge in hospital-acquired diseases has put global health at risk. Biomedical implants being the primary source of contamination, the development of biomedical implants with antimicrobial coatings has attracted the attention of a large group of researchers from around the globe. Bacteria develops biofilms on the surface of implants, making it challenging to eradicate them with the standard approach of administering antibiotics. A further issue of current concern is the fast resurgence of resistance to conventional antibiotics. As nanotechnology continues to advance, various types of nanomaterials have been created, including 2D nanoparticles and metal and metal oxide nanoparticles with antimicrobial properties. Researchers from all over the world are using these materials as a coating agent for biomedical implants to create an antimicrobial environment. This comprehensive and contemporary review summarizes various metals, metal oxide nanoparticles, 2D nanomaterials, and their composites that have been used or may be used in the future as an antimicrobial coating agent for biomedical implants, as well as their succinct mode of action to combat biofilm-associated infection and diseases.
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Affiliation(s)
| | | | - Nivedita Mukherjee
- School of Biosciences and Bioengineering, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Amit Jaiswal
- School of Biosciences and Bioengineering, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
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11
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Jin Y, Zhou J, Zhao X, Zhang X, Su Z. When 2D nanomaterials meet biomolecules: design strategies and hybrid nanostructures for bone tissue engineering. J Mater Chem B 2022; 10:9040-9053. [PMID: 36317564 DOI: 10.1039/d2tb01489k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
2D nanomaterials show great potential in biomedical applications due to their unique physical and chemical surface properties. This review includes typical 2D nanomaterials used in bone tissue engineering (BTE), such as graphene oxide, hexagonal boron nitride, molybdenum disulfide, black phosphorus, and MXenes. Moreover, the construction methods of BTE materials with 2D nanosheets are analyzed. Before designing a BTE material, it is essential to understand the relationship between the material structure and properties. Notably, 2D nanomaterials can be hybridized with biomaterials, such as polypeptides, proteins, and polysaccharides, to improve biocompatibility and host responses. The effects of the surface properties and size of 2D nanomaterials on cellular behavior, gene expression, antibacterial properties, and cytotoxicity in BTE applications are also discussed. This work provides new design ideas and directions for constructing 2D nanomaterial-based BTE scaffolds.
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Affiliation(s)
- Yuchen Jin
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Jie Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xiaoyuan Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
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Zhao Q, Zhitomirsky I. Biomimetic strategy for electrophoretic deposition of composite ferroelectric poly(vinylidene, fluoride-co-hexafluoropropylene) – ferrimagnetic NiFe2O4 films. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Gaafar MS, Yakout SM, Barakat YF, Sharmoukh W. Electrophoretic deposition of hydroxyapatite/chitosan nanocomposites: the effect of dispersing agents on the coating properties. RSC Adv 2022; 12:27564-27581. [PMID: 36276043 PMCID: PMC9516373 DOI: 10.1039/d2ra03622c] [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: 06/11/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022] Open
Abstract
In this study, electrophoretic deposition (EPD) was used for the coating on titanium (Ti) substrate with a composite of hydroxyapatite (HA)-chitosan (CS) in the presence of dispersing agents such as polyvinyl butyral (PVB), polyethylene glycol (PEG), and triethanolamine (TEA). The materials were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), zeta potential, and Fourier transform infrared (FT-IR) spectroscopy. The addition of PVB, PEG, and TEA agents improved the development of Ti coating during the EPD process. These additives increased the suspension stability and promoted the formation of uniform and compact HA/CS nanocomposite coatings on Ti substrates. The electrochemical polarization tests (e.g., potentiodynamic test) of the substrate with and without coating were investigated. Data analysis showed high corrosion resistance of Ti substrate coated with the HA/CS NP composite. The corrosion potentials displayed a shift toward positive values indicating the increase in the corrosion resistance of Ti after coating. In addition to measuring calcium ion release at various pH values and contact times at a biological pH value of 5.5, the stabilities of Ti substrates coated with HA/CS and different dispersing agents were also evaluated. Ti substrates with high anticorrosion properties may have a new potential application in biomedicine. Electrophoretic deposition was used for coating of titanium substrate with a composite of hydroxyapatite (HA)-chitosan (CS) in the presence of polyvinyl butyral (PVB), polyethylene glycol (PEG), and triethanolamine (TEA).![]()
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Affiliation(s)
- M. S. Gaafar
- Department of Chemical Engineering, Tabbin Institute for Metallurgical Studies (TIMS), PO Box: 109 Helwan, 11421 Cairo, Egypt
| | - S. M. Yakout
- Inorganic Chemistry Department, National Research Centre, Tahrir St, Dokki, Giza 12622, Egypt
| | - Y. F. Barakat
- Department of Chemical Engineering, Tabbin Institute for Metallurgical Studies (TIMS), PO Box: 109 Helwan, 11421 Cairo, Egypt
| | - W. Sharmoukh
- Inorganic Chemistry Department, National Research Centre, Tahrir St, Dokki, Giza 12622, Egypt
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