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Solaymani S, Nezafat NB, Ţălu Ş, Shafiekhani A, Dalouji V, Amiri A, Rezaee S, Morozov IA. Atomic force microscopy studies of enamel, inner enamel, dentin, and cementum in canine teeth. Microsc Res Tech 2021; 84:1098-1105. [PMID: 33405274 DOI: 10.1002/jemt.23668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 10/07/2020] [Accepted: 11/22/2020] [Indexed: 02/05/2023]
Abstract
The main goal of the present work is to explore the three dimensional (3-D) atomic force microscopy (AFM) images of human teeth and investigating their micromorphology. For this purpose, 10 fresh and permanent canine teeth were selected from a group of 40-year-old men who were candidate for the experimental processes. Afterward, they were all applied for studying the morphology of their hard tissues. The tapping mode of AFM was used to characterize the surface micromorphology on the square areas of 1 μm × 1 μm (512 × 512 pts). AFM results and surface stereometric analysis indicate the relationships between the micromorphology of the surface and the structural properties of these tissues across the length scales. As can be seen, the surface of cementum has the most irregular topography (D = 2.87 ± 0.01) while the most regular topography (D = 2.43 ± 0.01) is found in dentin. Furthermore, the more and less regularity of the surface have been found in inner enamel (Sq = 26.26 nm) and dentin (Sq = 41.28 nm), respectively. Stereometric and fractal analyses give valuable information about human canine teeth via 3-D micromorphology.
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Affiliation(s)
- Shahram Solaymani
- School of Physics, Institute for Research in Fundamental Sciences, Tehran, Iran
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | | | - Ştefan Ţălu
- Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Cluj-Napoca, Romania
| | - Azizollah Shafiekhani
- Department of Physics, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Vali Dalouji
- Department of Physics, Faculty of Science, Malayer University, Malayer, Iran
| | - Ali Amiri
- Department of Dentistry, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Ilya A Morozov
- Institute of Continuous Media Mechanics UB RAS, Perm, Russia
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Rezaee S. The effect of deposition times in DC-magnetron sputtering on micromorphology of TiO 2 thin films. Microsc Res Tech 2021; 84:1475-1483. [PMID: 33491242 DOI: 10.1002/jemt.23703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 11/11/2022]
Abstract
TiO2 thin films have been prepared by DC-magnetron sputtering process with various deposition times (8, 14, 16, and 20 min) and the micromorphology of their surface has been investigated by means of multifractal analysis. As the main purpose of the manuscript, the topography of all samples are examined by atomic force microscopy (AFM) through the Mountains Map® Premium software which characterizes motifs of significant peaks and pits through stereometric data by the watershed segmentation algorithm. In addition, multifractal features of samples provide deeper insight into texture characteristics and used as the supplementary of the results.
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Affiliation(s)
- Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
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3
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Solaymani S, Kulesza S, Nezafat NB, Shafiekhani A, Ţălu Ş, Dalouji V, Rezaee S, Boochani A. Multiscale Surface Microtexture Analysis of CuNPs@a-C:H Thin Films. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shahram Solaymani
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, 6718997551, Iran
| | - Slawomir Kulesza
- Faculty of Technical Sciences, Warmia and Mazury University in Olsztyn, Oczapowskiego 11, Olsztyn, 10-719, Poland
| | - Negin Beryani Nezafat
- School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, 1953833511, Iran
| | - Azizollah Shafiekhani
- Department of Physics, Faculty of Physics and Chemistry, Alzahra University, Tehran, 1993891167, Iran
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Constantin Daicoviciu Street, No. 15, Cluj-Napoca, Cluj County 400020, Romania
| | - Vali Dalouji
- Department of Physics, Faculty of Science, Malayer University, Malayer, 6571995863, Iran
| | - Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, 6718997551, Iran
| | - Arash Boochani
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, 6718997551, Iran
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Yadav RP, Baranwal V, Kumar S, Pandey AC, Mittal AK. Multifractal analysis of SiO2 surface embedded with Ge nanocrystal. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01626-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Averaged power spectrum density, fractal and multifractal spectra of Au nano-particles deposited onto annealed TiO2 thin films. OPTICAL AND QUANTUM ELECTRONICS 2020. [DOI: 10.1007/s11082-020-02584-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Matos RS, Ramos GQ, da Fonseca Filho HD, Ţălu Ş. Advanced micromorphology study of microbial films grown on Kefir loaded with Açaí extract. Micron 2020; 137:102912. [PMID: 32585567 DOI: 10.1016/j.micron.2020.102912] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/15/2020] [Accepted: 06/15/2020] [Indexed: 02/07/2023]
Abstract
In this work, an advanced analysis of the 3D surface microtexture of the microbial films grown on Kefir loaded with Açaí extract was performed. Atomic force microscopy was used to characterize the 3D surface microtexture data in correlation with the stereometric analyses to allow a better understanding of the surface micromorphology consistent with ISO 25178-2: 2012. Two new parameters, fractal succolarity and fractal lacunarity, have been inserted for a quantitative approach to microtexture. The results revealed that the morphology was affected by the increase of the Açaí concentration in biofilms, as well as the fractal succolarity and lacunarity. Adhesive bacteria of the genus Lactobacillus were observed for the lowest concentrations of Açaí. Moreover, it was found that the surface of the biofilms has shown saturation when the concentration has changed from 4 to 6 % of Açaí. These results are of great interest in the characterization of surfaces with promising application like skin dressing.
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Affiliation(s)
- Robert S Matos
- Federal University of Amapá, Amazonian Materials Group, Physics Department, Amapá, Brazil; Federal University of Sergipe, Materials Engineering Department, Sergipe, Brazil
| | - Glenda Q Ramos
- Postgraduate Program in Tropical Medicine, State University of Amazonas, Manaus, Amazonas, Brazil
| | - Henrique D da Fonseca Filho
- Federal University of Amazonas, Laboratory of Nanomaterials Synthesis and Nanoscopy, Physics Department, Amazonas, Brazil.
| | - Ştefan Ţălu
- Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Cluj County, Romania
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Ţălu Ş, Achour A, Solaymani S, Nikpasand K, Dalouji V, Sari A, Rezaee S, Nezafat NB. Micromorphology analysis of TiO 2 thin films by atomic force microscopy images: The influence of postannealing. Microsc Res Tech 2020; 83:457-463. [PMID: 31912934 DOI: 10.1002/jemt.23433] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/23/2019] [Accepted: 12/22/2019] [Indexed: 02/05/2023]
Abstract
This work describes an analysis of titanium dioxide (TiO2 ) thin films prepared on silicon substrates by direct current (DC) planar magnetron sputtering system in O2 /Ar atmosphere in correlation with three-dimensional (3D) surface characterization using atomic force microscopy (AFM). The samples were grown at temperatures 200, 300, and 400°C on silicon substrate using the same deposition time (30 min) and were distributed into four groups: Group I (as-deposited samples), Group II (samples annealed at 200°C), Group III (samples annealed at 300°C), and Group IV (samples annealed at 400°C). AFM images with a size of 0.95 μm × 0.95 μm were recorded with a scanning resolution of 256 × 256 pixels. Stereometric analysis was carried out on the basis of AFM data, and the surface topography was described according to ISO 25178-2:2012 and American Society of Mechanical Engineers (ASME) B46.1-2009 standards. The maximum and minimum root mean square roughnesses were observed in surfaces of Group II (Sq = 7.96 ± 0.1 nm) and Group IV (Sq = 3.87 ± 0.1 nm), respectively.
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Affiliation(s)
- Ştefan Ţălu
- Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Constant in Daicoviciu St., no. 15, Cluj-Napoca, 400020, Cluj county, Romania
| | - Amine Achour
- University of Namur, Research Centre in Physics of Matter and Radiation (PMR), LISE Laboratory, B-5000, Namur, Belgium
| | - Shahram Solaymani
- School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran
| | - Kimia Nikpasand
- Department of Physics, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Vali Dalouji
- Department of Physics, Faculty of Science, Malayer University, Malayer, Iran
| | - Amirhossein Sari
- Department of Physics, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Negin B Nezafat
- School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran
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Solaymani S, Ţălu Ş, Nezafat NB, Rezaee S, Kenari MF. Diamond nanocrystal thin films: Case study on surface texture and power spectral density properties. AIP ADVANCES 2020. [DOI: 10.1063/5.0003866] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shahram Solaymani
- Department of Physics, Harsin Branch, Islamic Azad University, 6731994934 Harsin, Iran
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Constantin Daicoviciu St., No. 15, Cluj-Napoca 400020, Cluj County, Romania
| | - Negin Beryani Nezafat
- School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran
| | - Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, 6718997551 Kermanshah, Iran
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Multifractal analysis of human canine teeth at nano scale: atomic force microscopy studies. INTERNATIONAL NANO LETTERS 2020. [DOI: 10.1007/s40089-019-00293-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AbstractThe aim of the present study is to explore the 3-D micromorphology of human canine teeth materials using multifractal analysis through atomic force microscopy (AFM). The 3-D surfaces of ten extracted canine teeth of a group of 40 year old men were studied (enamel, inter enamel, inter dentin, and cementum) by AFM images in tapping mode and on square areas of 1 μm × 1 μm (512 × 512 points). The AFM images and surface multifractal analysis confirm the dependency of surface micromorphology to their structure–property of these materials across the length scales of the teeth structural architecture. Surface statistical parameters and hence, multifractal approach have been considered as reliable and sensitive tools for quantifying the 3-D surface microtexture changes of human canine teeth materials. The surface of inter dentin had the most irregular topography (the width spectrum Δα = 2.8361, value bigger than all the other Δα sample values), while the most regular topography (the width spectrum Δα = 2.6804, value lower than all the other sample values) was found in cementum. It has been concluded that multifractal analyses can be used as mathematical tools to explore the 3-D micromorphology of human canine teeth materials.
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Nezafat NB, Ghoranneviss M, Elahi SM, Shafiekhani A, Ghorannevis Z, Solaymani S. Topographic characterization of canine teeth using atomic force microscopy images in nano-scale. INTERNATIONAL NANO LETTERS 2019. [DOI: 10.1007/s40089-019-00284-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Abstract
The purpose of the present study was to investigate a new method to evaluate micro topography and micro morphology of hard tissue of canine teeth using an atomic force microscope (AFM). For this aim, three extracted human canine teeth were applied. The unpolished surfaces were analyzed with AFM images with 15 µm × 5 µm area and their information obtained by power spectral density (PSD) method and fast Fourier transform algorithm. It was observed that PSD analyses extract suitable information about surface morphological variations so that by moving from enamel to cementum, the fractal dimension and surface complexity were increased.
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Fischer NG, Dang J, Takamizawa T, Tsujimoto A, Barkmeier WW, Baruth AG. The role of spatial frequency analysis in correlating atomic force microscopy and optical profilometry with self-etch adhesive enamel bond fatigue durability. Microsc Res Tech 2019; 82:1419-1429. [PMID: 31099955 DOI: 10.1002/jemt.23294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/08/2019] [Accepted: 05/05/2019] [Indexed: 11/06/2022]
Abstract
The purpose of this study was to: (a) evaluate the role of enamel surface roughness on bond fatigue durability and (b) evaluate statistical differences in roughness values based on measurement technique, including the use of spatial filtering for optical profilometry (OP). OptiBond XTR (Kerr Corp), Prime & Bond elect (DENTSPLY Caulk), Scotchbond Universal (3 M Oral Care), and XTR pre-etched with Ultra-Etch phosphoric acid (35%) (Ultradent) self-etch adhesives were used to treat enamel. A flat ground enamel surface was included as a control. Atomic force microscopy (AFM) and OP were used to measure the surface topography of each enamel surface following the application of adhesives. AFM, OP, and filtered OP (FOP) roughness values, where FOP was designed to only include the lateral spatial resolution consistent with AFM roughness values, were collected. Spatial resolution filtering with OriginPro was used to compare line scans from the two imaging techniques and generate the FOP group. These micro- versus nanoscale lateral roughness values were correlated with shear bond and shear fatigue strengths of the adhesives bonded to enamel. Roughness values showed differences based on measurement technique and strong correlations with bond and fatigue strength. The filtered OP group demonstrated the importance of careful usage and reporting of atomic force microscopy and OP metrics in adhesive dentistry. Best practices for surface roughness analysis were also discussed.
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Affiliation(s)
- Nicholas G Fischer
- Department of Physics, College of Arts and Sciences, Creighton University, Omaha, Nebraska
| | - Jonathan Dang
- Department of Physics, College of Arts and Sciences, Creighton University, Omaha, Nebraska
| | - Toshiki Takamizawa
- Department of Operative Dentistry, School of Dentistry, Nihon University, Tokyo, Japan
| | - Akimasa Tsujimoto
- Department of Operative Dentistry, School of Dentistry, Nihon University, Tokyo, Japan
| | - Wayne W Barkmeier
- Department of General Dentistry, School of Dentistry, Creighton University, Omaha, Nebraska
| | - Andrew G Baruth
- Department of Physics, College of Arts and Sciences, Creighton University, Omaha, Nebraska
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