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Staehlke S, Brief J, Senz V, Eickner T, Nebe JB. Optimized Gingiva Cell Behavior on Dental Zirconia as a Result of Atmospheric Argon Plasma Activation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4203. [PMID: 37374388 DOI: 10.3390/ma16124203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/01/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023]
Abstract
Several physico-chemical modifications have been developed to improve cell contact with prosthetic oral implant surfaces. The activation with non-thermal plasmas was one option. Previous studies found that gingiva fibroblasts on laser-microstructured ceramics were hindered in their migration into cavities. However, after argon (Ar) plasma activation, the cells concentrated in and around the niches. The change in surface properties of zirconia and, subsequently, the effect on cell behavior is unclear. In this study, polished zirconia discs were activated by atmospheric pressure Ar plasma using the kINPen®09 jet for 1 min. Surfaces were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy (XPS), and water contact angle. In vitro studies with human gingival fibroblasts (HGF-1) focused on spreading, actin cytoskeleton organization, and calcium ion signaling within 24 h. After Ar plasma activation, surfaces were more hydrophilic. XPS revealed decreased carbon and increased oxygen, zirconia, and yttrium content after Ar plasma. The Ar plasma activation boosted the spreading (2 h), and HGF-1 cells formed strong actin filaments with pronounced lamellipodia. Interestingly, the cells' calcium ion signaling was also promoted. Therefore, argon plasma activation of zirconia seems to be a valuable tool to bioactivate the surface for optimal surface occupation by cells and active cell signaling.
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Affiliation(s)
- Susanne Staehlke
- Institute for Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Jakob Brief
- VITA Zahnfabrik H. Rauter GmbH & Co. KG, 79713 Bad Säckingen, Germany
| | - Volkmar Senz
- Institute for Biomedical Engineering, Rostock University Medical Center, 18119 Rostock, Germany
| | - Thomas Eickner
- Institute for Biomedical Engineering, Rostock University Medical Center, 18119 Rostock, Germany
| | - J Barbara Nebe
- Institute for Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany
- Department Science and Technology of Life, Light and Matter, University of Rostock, 18059 Rostock, Germany
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Aung LM, Lin JCY, Salamanca E, Wu YF, Pan YH, Teng NC, Huang HM, Sun YS, Chang WJ. Functionalization of zirconia ceramic with fibronectin proteins enhanced bioactivity and osteogenic response of osteoblast-like cells. Front Bioeng Biotechnol 2023; 11:1159639. [PMID: 37180046 PMCID: PMC10167021 DOI: 10.3389/fbioe.2023.1159639] [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: 02/06/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023] Open
Abstract
Introduction: To overcome the genuine bioinert properties of zirconia ceramic, functionalization of the surface with the bioactive protein fibronectin was conducted. Methods: Glow discharge plasma (GDP)-Argon was first used to clean the zirconia surface. Then allylamine was treated at three different powers of 50 W, 75 W, and 85 W and immersed into 2 different fibronectin concentrations (5 µg/ml and 10 µg/ml). Results and Discussion: After surface treatment, irregularly folded protein-like substances were attached on the fibronectin coated disks, and a granular pattern was observed for allylamine grafted samples. Infrared spectroscopy detected C-O, N-O, N-H, C-H, and O-H functional groups for fibronectin treated samples. Surface roughness rose and hydrophilicity improved after the surface modification, with MTT assay showing the highest level of cell viability for the A50F10 group. Cell differentiation markers also showed that fibronectin grafted disks with A50F10 and A85F10 were the most active, which in turn encouraged late-stage mineralization activity on 21d. Up-regulation of osteogenic related mRNA expression from 1d to 10d can be observed in RT-qPCR data for ALP, OC, DLX5, SP7, OPG and RANK biomarkers. These physical and biological properties clearly indicate that an allylamine and fibronectin composite grafted surface significantly stimulated the bioactivity of osteoblast-like cells, and can be utilized for future dental implant applications.
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Affiliation(s)
- Lwin Moe Aung
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jerry Chin-Yi Lin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, United States
| | - Eisner Salamanca
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Fan Wu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Hwan Pan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
- Graduate Institute of Dental and Craniofacial Science, Chang Gung University, Taoyuan, Taiwan
- School of Dentistry, College of Medicine, China Medical University, Taichung, Taiwan
| | - Nai-Chia Teng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Dentistry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Haw-Ming Huang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ying-Sui Sun
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Jen Chang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Dental Department, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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Flores‐Nava FG, Ramírez R, Olayo González MG, Colín‐Orozco E, Palacios González JC, Cruz GJ. Amined polyallylamine particles synthesized by plasma. J Appl Polym Sci 2023. [DOI: 10.1002/app.53604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Fernando G. Flores‐Nava
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | - Rosario Ramírez
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | - M. Guadalupe Olayo González
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
| | - Elena Colín‐Orozco
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | | | - Guillermo J. Cruz
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
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Tang S, Wang Y, Zong Z, Ding N, Zhang Z. Enhanced osteogenic activity of titania-modified zirconia implant by ultraviolet irradiation. Front Bioeng Biotechnol 2022; 10:945869. [PMID: 36003530 PMCID: PMC9393212 DOI: 10.3389/fbioe.2022.945869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Zirconia is a superior implant material owing to its high mechanical strength, durable corrosion resistance, superior aesthetic effect and excellent biocompatibility. However, the bioactivity of zirconia surfaces remains a great challenge for implant osseointegration. A titania (TiO2) coating was innovatively synthesized on the surface of zirconia by infiltration in a suspension of zirconium oxychloride and titania for dense sintering. Subsequently, the coating was subjected to ultraviolet (UV) light to enhance the biological inertness of zirconia. Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and contact angle analysis were conducted to confirm the surface characteristics. Afterwards, in vitro assessments of cell adhesion, proliferation and osteogenic differentiation of MC3T3-E1 cells were performed. Zirconia samples were implanted into rat femurs to assess biocompatibility and host tissue response in vivo. Micro-CT evaluation and histological testing were conducted. After UV irradiation, the content of hydroxyl groups and hydrophilicity of TiO2-modified zirconia were significantly increased. The results of in vitro experiments showed that TiO2-modified zirconia subjected to UV light could promote cell proliferation and spreading, enhance ALP activity and the degree of mineralization, and upregulate osteogenesis-related genes. Furthermore, in vivo assessments confirmed that UV-irradiated TiO2-modified zirconia implants maximized the promotion of osseointegration. TiO2-modified zirconia after UV treatment will have broad clinical application prospects in improving the osseointegration of zirconia implants.
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Molaei M, Attarzadeh N, Fattah-Alhosseini A. Tailoring the biological response of zirconium implants using zirconia bioceramic coatings: A systematic review. J Trace Elem Med Biol 2021; 66:126756. [PMID: 33831798 DOI: 10.1016/j.jtemb.2021.126756] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 03/18/2021] [Accepted: 03/29/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The poor biological performance of zirconium implants in the human body resulting from their bio-inertness and vulnerability to corrosion and bacterial activity reflects the need for further studies on substitution or performing the surface modification. The suggestion of employing zirconia (ZrO2) bioceramic coatings for surface modification seems beneficial. OBJECTIVES This systematic review aims to identify and summarize existing documents reporting the biological responses for ZrO2 coatings produced by the PEO process on zirconium implants. METHODS PubMed, Scopus, and Web of Science international databases were searched for the original and English-language studies published between 2000 and 2021. All publications reported at least one study about in-vitro (cellular and immersion studies), in-vivo (animal studies), and antibacterial topics for ZrO2-PEO coated zirconium implants. RESULTS Throughout the initial search, 496 publications were found, and 296 papers remained following the elimination of duplicates. Finally, after multiple screening and eligibility assessments, 25 publications were qualified and included in the review. Among them, 25 in-vitro (cellular and immersion in SBF and Hanks' solutions studies), one in-vivo (animal studies), and eight antibacterial studies were found. CONCLUSION The ZrO2 coated samples demonstrate no cytotoxicity, high cell viability rate, and excellent biocompatibility. However, changing the solution composition and electrical parameters during the PEO procedures result in significant changes to in-vitro responses. As an instance, the ZrO2 coating surface demonstrates greater biocompatibility after irradiated by UV, which makes the surface more suitable for cell growth. Due to weak apatite-forming ability, the zirconium sample shows low bioactivity in SBF. However, most cases (13 out of 16) show that the specific morphology and chemical composition of the ZrO2 coating promote apatite-forming ability with good bioactivity in SBF. Nevertheless, few papers (three out of 16) showed that the ZrO2 coatings immersed in SBF had no apatite precipitates and so no bioactivity. These cases limit the bioactivity enhancement to treatment by UV-light irradiation, hydrothermal and chemical treatment, thermal evaporation, and cathodic polarization post-treatment on ZrO2 coatings. Both zirconium and ZrO2 coated samples do not show apatite-forming ability in Hanks' solution. The ZrO2 coated implant with the bone together indicates a greater shear strength and rapid new bone formation ability during 12 weeks because of containing Ca-P compounds and porous structure. The UV post-treated ZrO2 coating induces faster new bone formation and firmer connection of bond with bone than those of untreated ZrO2 coatings. A stronger antibacterial activity of ZrO2 coatings is confirmed in half of the selected papers (four out of eight studies) compared to the bare zirconium samples. The antibacterial protection of ZrO2 coatings can be influenced by the PEO procedure variables, i.e., solution composition, electrical parameters, and treatment time. In three cases, the antibacterial activity of ZrO2 coatings is enhanced by deposition of Zn, Ag, or Cu antibacterial layers through thermal evaporation post-treatment.
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Affiliation(s)
- Maryam Molaei
- Department of Materials Engineering, Bu-Ali Sina University, Hamedan, 65178-38695, Iran
| | - Navid Attarzadeh
- Environmental Science and Engineering Program, University of Texas at El Paso, El Paso, TX, 79968, USA
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Zhang P, Zhang C, Zhang C, Kong F, Yan P, Shao T. Low-temperature plasma polymerized fluorocarbon coating promotes surface charge dissipation in polystyrene. NANOTECHNOLOGY 2021; 32:125703. [PMID: 33382042 DOI: 10.1088/1361-6528/abcfe9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polystyrene (PS) is a common insulating material in pulsed power devices, which has excellent and reliable insulation properties. However, the charge accumulation on the insulator surface seriously threatens its surface insulation property. Surface modification has been verified as an effective way for inhibiting surface charge accumulation. In this paper, plasma polymerized fluorocarbon (PPFC) coating was prepared by low-temperature plasma polymerization in the mixture of methyl-methacrylate and dodecafluoroheptyl-methacrylate (DFHMA). Compared with the untreated PS, the surface charge dissipation rate of PPFC coating is increased by more than 6 times. The introduction of DFHMA makes the coating have no obvious ageing effect after the storage, and has good reusability after the surface flashover. This work provides a new method for modification of polymer dielectrics and a novel way for the preparation of high-charge-dissipation polymers in other related fields.
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Affiliation(s)
- Penghao Zhang
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Electrical Engineering, Chongqing University, Chongqing 400030, People's Republic of China
| | - Cheng Zhang
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Chuansheng Zhang
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Fei Kong
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Ping Yan
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Tao Shao
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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