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Ghaderi A, Sabbaghzadeh J, Dejam L, Behzadi Pour G, Moghimi E, Matos RS, da Fonseca Filho HD, Țălu Ș, Salehi Shayegan A, Aval LF, Astani Doudaran M, Sari A, Solaymani S. Nanoscale morphology, optical dynamics and gas sensor of porous silicon. Sci Rep 2024; 14:3677. [PMID: 38355956 PMCID: PMC10866982 DOI: 10.1038/s41598-024-54336-x] [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: 09/17/2023] [Accepted: 02/12/2024] [Indexed: 02/16/2024] Open
Abstract
We investigated the multifaceted gas sensing properties of porous silicon thin films electrodeposited onto (100) oriented P-type silicon wafers substrates. Our investigation delves into morphological, optical properties, and sensing capabilities, aiming to optimize their use as efficient gas sensors. Morphological analysis revealed the development of unique surfaces with distinct characteristics compared to untreated sample, yielding substantially rougher yet flat surfaces, corroborated by Minkowski Functionals analysis. Fractal mathematics exploration emphasized that despite increased roughness, HF/ethanol-treated surfaces exhibit flatter attributes compared to untreated Si sample. Optical approaches established a correlation between increased porosity and elevated localized states and defects, influencing the Urbach energy value. This contributed to a reduction in steepness values, attributed to heightened dislocations and structural disturbances, while the transconductance parameter decreases. Simultaneously, porosity enhances the strength of electron‒phonon interaction. The porous silicon thin films were further tested as effective gas sensors for CO2 and O2 vapors at room temperature, displaying notable changes in electrical resistance with varying concentrations. These findings bring a comprehensive exploration of some important characteristics of porous silicon surfaces and established their potential for advanced industrial applications.
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Affiliation(s)
- Atefeh Ghaderi
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Jamshid Sabbaghzadeh
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Laya Dejam
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Physics, Islamic Azad University, West Tehran Branch, Tehran, Iran
| | - Ghobad Behzadi Pour
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Physics, East Tehran Branch, Islamic Azad University, Tehran, 18661-13118, Iran
| | - Emad Moghimi
- Faculty of Physics, Kharazmi University, Tehran, Iran
| | - Robert S Matos
- Amazonian Materials Group, Physics Department, Federal University of Amapá-UNIFAP, Macapá, Amapá, Brazil
| | - Henrique Duarte da Fonseca Filho
- Laboratory of Synthesis of Nanomaterials and Nanoscopy, Physics Department, Federal University of Amazonas-UFAM, Manaus, Amazonas, Brazil
| | - Ștefan Țălu
- The Directorate of Research, Development and Innovation Management (DMCDI), The Technical University of Cluj-Napoca, Constantin Daicoviciu Street, No. 15, Cluj-Napoca, 400020, Cluj County, Romania
| | - Amirhossein Salehi Shayegan
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Leila Fekri Aval
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahdi Astani Doudaran
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amirhossein Sari
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahram Solaymani
- Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran.
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Ţălu Ş, Matos RS, da Fonseca Filho HD, Predoi D, Liliana Iconaru S, Steluţa Ciobanu C, Ghegoiu L. Morphological and fractal features of cancer cells anchored on composite layers based on magnesium-doped hydroxyapatite loaded in chitosan matrix. Micron 2024; 176:103548. [PMID: 37813055 DOI: 10.1016/j.micron.2023.103548] [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: 09/13/2023] [Revised: 10/01/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
In the present study, we report the development and characterization of composite layers (by spin coating) based on magnesium-doped hydroxyapatite in a chitosan matrix, containing human osteosarcoma MG63 cells anchored. Studies regarding the biocompatibility of the composite layers were performed with the aid of a MTT (3-4,5-Dimethylthiazol 2,5-diphenyltetrazolium bromide) assay. The data determined that the composite layers did not inhibit the growth and adhesion of MG63 cells to their surfaces exhibiting good biocompatibility properties. Furthermore, the attachment and development of MG63 cells on the surface of MgHApCh composite layers were investigated using atomic force microscopy (AFM). AFM topographical maps emphasized that the HApCh and 8MgHApCh composite layers surface promoted the attachment and proliferation of MG63 cells on their surface. Meanwhile, in the case of 30MgHApCh layers incubated for 48 h, a slight modification of the morphological features of the MG63 cells. In addition, the effects of the composite layers against Candida albicans ATCC 10231 were also evaluated. The data results from the in vitro antifungal assay depicted that the composite layers successfully inhibited the growth of the fungal cells onto their surface. Morphological and fractal analyses unveil cancer cell surfaces on Mg-containing composite layers with intricate 3D patterns, driven by high-frequency components. Their remarkable complexity and roughness arises from a strong multifractal nature, supporting more effective vertical growth compared to Si and HApCh surfaces. The cell viability reduced of uncoated Si surface is highlighted by its less intense 3D pattern growth. Our results show that the uncoated Si surface promotes lower viability of MG63 cancer cells, with less rough and complex 3D spatial patterns.
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Affiliation(s)
- Ştefan Ţălu
- The Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Constantin Daicoviciu Street, no. 15, Cluj-Napoca 400020, Cluj county, Romania.
| | - Robert S Matos
- Amazonian Materials Group, Physics Department, Federal University of Amapá, Macapá 68903-419, Amapá, Brazil.
| | | | - Daniela Predoi
- National Institute of Materials Physics, 405A Atomiștilor Street, 077125 Măgurele, Romania.
| | - Simona Liliana Iconaru
- National Institute of Materials Physics, 405A Atomiștilor Street, 077125 Măgurele, Romania.
| | - Carmen Steluţa Ciobanu
- National Institute of Materials Physics, 405A Atomiștilor Street, 077125 Măgurele, Romania.
| | - Liliana Ghegoiu
- National Institute of Materials Physics, 405A Atomiștilor Street, 077125 Măgurele, Romania.
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Acosta-Ramírez CI, Lares-Carrillo ID, Ayón-Reyna LE, López-López ME, Vega-García MO, López-Velázquez JG, Gutiérrez-López GF, Osuna-Martínez U, García-Armenta E. A comprehensive study from the micro- to the nanometric scale: Evaluation of chilling injury in tomato fruit (Solanum lycopersicum). Food Res Int 2024; 176:113822. [PMID: 38163722 DOI: 10.1016/j.foodres.2023.113822] [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: 08/28/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 01/03/2024]
Abstract
Tomato fruit is susceptible to chilling injury (CI) during its postharvest handling at low temperature. The symptoms caused by this physiological disorder have been commonly evaluated by visual inspection at a macro-observation scale on fruit surface; however, the structure at deeper scales is also affected by CI. This work aimed to propose a descriptive model of the CI development in tomato tissue under the micro-scale, micro-nano-scale and nano-scale approaches using fractal analysis. For that, quality and fractal parameters were determined. In this sense, light microscopy, Environmental Scanning Electron Microscopy (ESEM) and Atomic Force Microscopy (AFM) were applied to analyse micro-, micro-nano- and nano-scales, respectively. Results showed that the morphology of tomato tissue at the micro-scale level was properly described by the multifractal behaviour. Also, generalised fractal dimension (Dq=0) and texture fractal dimension (FD) of CI-damaged pericarp and cuticle were higher (1.659, 1.601 and 1.746, respectively) in comparison to non-chilled samples (1.606, 1.578 and 1.644, respectively); however, FD was unsuitable to detect morphological changes at the nano-scale. On the other hand, lacunarity represented an appropriate fractal parameter to detect CI symptoms at the nano-scale due to differences observed between damaged and regular ripe tissue (0.044 and 0.025, respectively). The proposed multi-scale approach could improve the understanding of CI as a complex disorder to the development of novel techniques to avoid this postharvest issue at different observation scales.
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Affiliation(s)
- C I Acosta-Ramírez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico; Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Carpio y Plan de Ayala S/N, Ciudad de México 11340, Mexico
| | - I D Lares-Carrillo
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - L E Ayón-Reyna
- Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - M E López-López
- Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - M O Vega-García
- Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - J G López-Velázquez
- Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - G F Gutiérrez-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Carpio y Plan de Ayala S/N, Ciudad de México 11340, Mexico
| | - U Osuna-Martínez
- Laboratorio de Investigación en Farmacia, Farmacobiología y Toxicobiología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico
| | - E García-Armenta
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico; Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán, Sinaloa 80013, Mexico.
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Shakoury R, Matos RS, da Fonseca Filho HD, Rezaee S, Arman A, Boochani A, Jurečka S, Zelati A, Mardani M, Ţălu Ş. Investigation of deposition temperature effect on spatial patterns of MgF 2 thin films. Microsc Res Tech 2023; 86:169-180. [PMID: 36260856 DOI: 10.1002/jemt.24246] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/12/2022] [Accepted: 10/06/2022] [Indexed: 01/20/2023]
Abstract
In this work, the atomic force microscopy (AFM) technique was used to characterize 3D MgF2 thin film surfaces through advanced analysis involving morphological, fractal, multifractal, succolarity, lacunarity and surface entropy (SE) parameters, consistent with ISO 25178-2: 2012. Samples were synthesized by electron beam deposition, grown in three different temperatures. Three different temperatures of 25°C (laboratory temperature), 150 and 300°C were chosen. The temperature of 300°C is usually the highest temperature that can be deposited with the electron beam evaporation coating system. The substrates were made of glass (diameter 16 mm, thickness 3 mm), and the samples were prepared at a pressure of 5 × 10-5 Torr. The statistical results from the AFM images indicate that topographic asperities decrease with increasing deposition temperature, showing a decrease in roughness values. Regardless of the deposition temperature, all surfaces have a self-similar behavior, presenting a very linear PSD distribution, and, according to our results, the sample deposited at 300° had the highest spatial complexity. On the other hand, surface percolation is increasing when temperature increases, indicating that its low roughness and high spatial complexity play an important role on the formation of their most percolating surface microtexture. Our results demonstrate that the lower deposition temperature promoted the formation of less discontinuous height distributions in the MgF2 films.
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Affiliation(s)
- Reza Shakoury
- Department of Physics, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Robert Saraiva Matos
- Postgraduate Program in Materials Science and Engineering (P2CEM), Federal University of Sergipe, São Cristovão, Sergipe, Brazil
| | - Henrique Duarte da Fonseca Filho
- Laboratory of Nanomaterials Synthesis and Nanoscopy, Department of Physics, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Sahar Rezaee
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Ali Arman
- ACECR, Vacuum Technology Research Group, Sharif University Branch, Tehran, Iran
| | - Arash Boochani
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Stanislav Jurečka
- Institute of Aurel Stodola, Faculty of Electrical Engineering, University of Žilina, Liptovský Mikuláš, Slovakia
| | - Amir Zelati
- Department of Basic Sciences, Birjand University of Technology, Birjand, Iran
| | - Mohsen Mardani
- ACECR, Vacuum Technology Research Group, Sharif University Branch, Tehran, Iran
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Cluj-Napoca, Romania
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Special Issue: Characterizations of Three-Dimensional Surfaces at Micro/Nanoscale. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12157729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nowadays, understanding the structural properties of materials with a specific internal microstructure on all length scales is the key to discovering new products based on new technologies [...]
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