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      International Journal of Nanomedicine (submit here)

      This international, peer-reviewed Open Access journal by Dove Medical Press focuses on the application of nanotechnology in diagnostics, therapeutics, and drug delivery systems throughout the biomedical field. Sign up for email alerts here.

      105,621 Monthly downloads/views I 7.033 Impact Factor I 10.9 CiteScore I 1.22 Source Normalized Impact per Paper (SNIP) I 1.032 Scimago Journal & Country Rank (SJR)

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      Preparation of Zirconium Hydrogen Phosphate Coatings on Sandblasted/Acid-Etched Titanium for Enhancing Its Osteoinductivity and Friction/Corrosion Resistance

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          Abstract

          Background

          Sandblasted/acid-etched titanium (SLA-Ti) implants are widely used for dental implant restoration in edentulous patients. However, the poor osteoinductivity and the large amount of Ti particles/ions released due to friction or corrosion will affect its long-term success rate.

          Purpose

          Various zirconium hydrogen phosphate (ZrP) coatings were prepared on SLA-Ti surface to enhance its friction/corrosion resistance and osteoinduction.

          Methods

          The mixture of ZrCl 4 and H 3PO 4 was first coated on SLA-Ti and then calcined at 450°C for 5 min to form ZrP coatings. In addition to a series of physiochemical characterization such as morphology, roughness, wettability, and chemical composition, their capability of anti-friction and anti-corrosion were further evaluated by friction-wear test and by potential scanning. The viability and osteogenic differentiation of MC3T3-E1 cells on different substrates were investigated via MTT, mineralization and PCR assays.

          Results

          The characterization results showed that there were no significant changes in the morphology, roughness and wettability of ZrP-modified samples (SLA-ZrP0.5 and SLA-ZrP0.7) compared with SLA group. The results of electrochemical corrosion displayed that both SLA-ZrP0.5 and SLA-ZrP0.7 (especially the latter) had better corrosion resistance than SLA in normal saline and serum-containing medium. SLA-ZrP0.7 also exhibited the best friction resistance and great potential to enhance the spreading, proliferation and osteogenic differentiation of MC3T3-E1 cells.

          Conclusion

          We determined that SLA-ZrP0.7 had excellent comprehensive properties including anti-corrosion, anti-friction and osteoinduction, which made it have a promising clinical application in dental implant restoration.

          Graphical Abstract

          Most cited references58

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          Corrosion and surface modification on biocompatible metals: A review.

          R.I.M. Asri, W.S.W. Harun, M Samykano … (2017)
          Corrosion prevention in biomaterials has become crucial particularly to overcome inflammation and allergic reactions caused by the biomaterials' implants towards the human body. When these metal implants contacted with fluidic environments such as bloodstream and tissue of the body, most of them became mutually highly antagonistic and subsequently promotes corrosion. Biocompatible implants are typically made up of metallic, ceramic, composite and polymers. The present paper specifically focuses on biocompatible metals which favorably used as implants such as 316L stainless steel, cobalt-chromium-molybdenum, pure titanium and titanium-based alloys. This article also takes a close look at the effect of corrosion towards the implant and human body and the mechanism to improve it. Due to this corrosion delinquent, several surface modification techniques have been used to improve the corrosion behavior of biocompatible metals such as deposition of the coating, development of passivation oxide layer and ion beam surface modification. Apart from that, surface texturing methods such as plasma spraying, chemical etching, blasting, electropolishing, and laser treatment which used to improve corrosion behavior are also discussed in detail. Introduction of surface modifications to biocompatible metals is considered as a "best solution" so far to enhanced corrosion resistance performance; besides achieving superior biocompatibility and promoting osseointegration of biocompatible metals and alloys.
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            Nanosheets of oxides and hydroxides: Ultimate 2D charge-bearing functional crystallites.

            Takayoshi Sasaki, Renzhi Ma (2010)
            A wide variety of cation-exchangeable layered transition metal oxides and their relatively rare counterparts, anion-exchangeable layered hydroxides, have been exfoliated into individual host layers, i.e., nanosheets. Exfoliation is generally achieved via a high degree of swelling, typically driven either by intercalation of bulky organic ions (quaternary ammonium cations, propylammonium cations, etc.) for the layered oxides or by solvation with organic solvents (formamide, butanol, etc.) for the hydroxides. Ultimate two-dimensional (2D) anisotropy for the nanosheets, with thickness of around one nanometer versus lateral size ranging from submicrometer to several tens of micrometers, allows them to serve either as an ideal quantum system for fundamental study or as a basic building block for functional assembly. The charge-bearing inorganic macromolecule-like nanosheets can be assembled or organized through various solution-based processing techniques (e.g., flocculation, electrostatic sequential deposition, or the Langmuir-Blodgett method) to produce a range of nanocomposites, multilayer nanofilms, and core-shell nanoarchitectures, which have great potential for electronic, magnetic, optical, photochemical, and catalytic applications.
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              Mechanism and Prevention of Titanium Particle-Induced Inflammation and Osteolysis

              Michal Eger, Sahar Hiram-Bab, Tamar Liron … (2018)
              The worldwide number of dental implants and orthopedic prostheses is steadily increasing. Orthopedic implant loosening, in the absence of infection, is mostly attributable to the generation of wear debris. Dental peri-implantitis is characterized by a multifactorial etiology and is the main cause of implant failure. It consists of a peri-implant inflammatory lesion that often results in loss of supporting bone. Disease management includes cleaning the surrounding flora by hand instruments, ultrasonic tips, lasers, or chemical agents. We recently published a paper indicating that US scaling of titanium (Ti) implants releases particles that provoke an inflammatory response and osteolysis. Here we show that a strong inflammatory response occurs; however, very few of the titanium particles are phagocytosed by the macrophages. We then measured a dramatic Ti particle-induced stimulation of IL1β, IL6, and TNFα secretion by these macrophages using multiplex immunoassay. The particle-induced expression profile, examined by FACS, also indicated an M1 macrophage polarization. To assess how the secreted cytokines contributed to the paracrine exacerbation of the inflammatory response and to osteoclastogenesis, we treated macrophage/preosteoclast cultures with neutralizing antibodies against IL1β, IL6, or TNFα. We found that anti-TNFα antibodies attenuated the overall expression of both the inflammatory cytokines and osteoclastogenesis. On the other hand, anti-IL1β antibodies affected osteoclastogenesis but not the paracrine expression of inflammatory cytokines, whereas anti-IL6 antibodies did the opposite. We then tested these neutralizing antibodies in vivo using our mouse calvarial model of Ti particle-induced osteolysis and microCT analysis. Here, all neutralizing antibodies, administered by intraperitoneal injection, completely abrogated the particle-induced osteolysis. This suggests that blockage of paracrine inflammatory stimulation and osteoclastogenesis are similarly effective in preventing bone resorption induced by Ti particles. Blocking both the inflammation and osteoclastogenesis by anti-TNFα antibodies, incorporated locally into a slow-release membrane, also significantly prevented osteolysis. The osteolytic inflammatory response, fueled by ultrasonic scaling of Ti implants, results from an inflammatory positive feedback loop and osteoclastogenic stimulation. Our findings suggest that blocking IL1β, IL6, and/or TNFα systemically or locally around titanium implants is a promising therapeutic approach for the clinical management of peri-implant bone loss.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Int J Nanomedicine
                Journal ID (iso-abbrev): Int J Nanomedicine
                Journal ID (publisher-id): ijn
                Title: International Journal of Nanomedicine
                Publisher: Dove
                ISSN (Print): 1176-9114
                ISSN (Electronic): 1178-2013
                Publication date (Electronic): 22 December 2021
                Publication date Collection: 2021
                Volume: 16
                Pages: 8265-8277
                Affiliations
                [1 ]School and Hospital of Stomatology, Wenzhou Medical University , Wenzhou, 325000, People’s Republic of China
                Author notes
                Correspondence: Xinkun Shen; Pingping Ma School and Hospital of Stomatology, Wenzhou Medical University , 268#Xueyuan West Road, Lucheng District, Wenzhou City, 325000, People’s Republic of China Tel +86-577-88066010; +86-577-88066085 Email 20111902015@cqu.edu.cn; ppma2012@sina.com
                [*]

                These authors contributed equally to this work

                Article
                Publisher ID: 337028
                DOI: 10.2147/IJN.S337028
                PMC ID: 8729793
                SO-VID: 3fcc14ec-75c9-4cf7-998a-a9c9f7d9c882
                Copyright © © 2021 Fang et al.
                License:

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                History
                Date received : 08 September 2021
                Date accepted : 14 December 2021
                Page count
                Figures: 8, Tables: 1, References: 59, Pages: 13
                Categories
                Subject: Original Research

                ScienceOpen disciplines: Molecular medicine
                Keywords: titanium,zirconium hydrogen phosphate,anti-corrosion,anti-friction,osteoinduction
                Data availability:
                ScienceOpen disciplines: Molecular medicine
                Keywords: titanium, zirconium hydrogen phosphate, anti-corrosion, anti-friction, osteoinduction

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