Article
Multidisciplinary Sciences
Rawan M. A. Mahmoud, Fatma N. Sayed, Mohamed R. Shehata, Ahmed M. A. El Naggar, Gehad G. Mohamed, Ahmad M. Abdelaal, Asmaa S. Morshedy
Summary: Metal oxides nanoparticles heterogeneous photocatalysts prepared by coprecipitation and ultrasonic techniques were used for diesel desulfurization. The catalysts were characterized and compared, with catalyst B showing higher reactivity due to its larger surface area and higher crystallinity. The maximum sulfur removal was achieved through optimized operational parameters and a further solvent extraction step.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Nuengruethai Ekthammathat, Anukorn Phuruangrat, Thirawit Phonkhokkong, Wachiraporn Maisang, Patcharanan Junploy, Arrak Klinbumrung, Somchai Thongtem, Titipun Thongtem
Summary: Mn-doped ZnO samples were successfully synthesized using sonochemical method, with XRD showing peak shifts due to Mn2+ incorporation. SEM and TEM observations revealed morphological changes in Zn1-xMnxO at different doping concentrations. The highest saturation magnetization was observed in 3 mol% Mn-doped ZnO, while 5 mol% Mn-doped ZnO exhibited suppressed ferromagnetic properties due to Mn cluster formation.
Article
Materials Science, Multidisciplinary
Alireza Samavati, Asmahani Awang, Zahra Samavati, Ahmad Fauzi Ismail, M. H. D. Othman, M. Velashjerdi, G. Eisaabadi B, Amir Rostami
Summary: The research systematically investigates the structural and optical properties of ZnO nanostructures synthesized using the electroless deposition technique, showing a shape-dependent relationship between structure and bandgap. The experimental results demonstrate changes in lattice parameters, bandgap, and dislocation density as ZnO nanostructures transition from compact ZnO to nanoparticles. The shift in bandgap and increase in dislocation density in ZnO nanoparticles highlight the shape dependency, providing insights for future integrated optoelectronic device applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
B. Al Farsi, T. M. Souier, F. Al Marzouqi, M. Al Maashani, M. Bououdina, H. M. Widatallah, M. Al Abri
Summary: Transparent pure and Al-doped zinc oxide thin films were successfully deposited on glass substrates using the sol-gel dip-coating technique. The study found that Al doping and annealing temperature have significant effects on the structural, morphological, optical properties, and photocatalytic activity of the films. Al doping was found to improve the photocatalytic activity of the films.
Article
Green & Sustainable Science & Technology
Olawale Oloye, Joseph F. S. Fernando, Dmitri Golberg, Anthony P. O'Mullane
Summary: The preparation of GaZn/GaZnO catalyst by alloying process shows excellent photocatalytic degradation efficiency towards methyl orange. The catalyst achieves a high degradation efficiency of 73% under solar simulated conditions, attributed to the GaZn core acting as an electron sink allowing for effective charge carrier separation, production of reactive oxygen species.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Chemistry, Multidisciplinary
Nizar Ben Moussa, Mohamed Lajnef, Nessrine Jebari, Cedric Villebasse, Fabien Bayle, Julien Chaste, Ali Madouri, Radouane Chtourou, Etienne Herth
Summary: In this study, low-cost sol-gel spin-coating technique was used to synthesize eco-friendly ZnO multilayer films with excellent optical properties and specific orientation suitable for piezoelectric applications. The ZnO sol-gel thin-films using precursor solutions of molarity 0.75 M exhibited an average optical transparency above 98% and an optical band gap energy of 3.42 eV, showing potential for eco-friendly and cost-effective applications in complementary metal-oxide-semiconductor (CMOS) and integrated circuits (IC).
Article
Engineering, Electrical & Electronic
Nashreen F. Patel, Sanjay A. Bhakhar, G. K. Solanki, K. D. Patel, V. M. Pathak, Chetan K. Zankat, Pratik M. Pataniya, Jagrutiba D. Gohil, Shubham U. Gupta
Summary: Researchers have evaluated the photodetection properties of highly crystalline MoS0.5Se1.5 nanosheets, which show a highly responsive nature in terms of optoelectronic performance. The nanosheets exhibit a well-indexed hexagonal lattice structure and have been successfully deposited on ITO substrate for further study of their photoresponse. The findings suggest an effective way to tune bandgap for producing high-performance optoelectronic devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Energy & Fuels
Samira Alinavaz, Maryam Ghiyasiyan-Arani, Elmuez A. Dawi, Masoud Salavati-Niasari
Summary: Hydrogen has received extensive attention in the field of new energy, leading to numerous studies on hydrogen production, storage, and use. Among these, mixed metal oxide materials with double layer hydroxides are primarily studied for their hydrogen storage capacity. Comparing the capacity of Ho3Fe5O12/Mg2Al(OH)(7) nanocomposites with different ratios to pristine LDH, it has been demonstrated that the 1:1 ratio of Ho3Fe5O12 to Mg2Al(OH)(7) in the nanocomposites significantly enhances the storage capacity (422 mAhg(-1)) compared to pristine LDH (213 mAhg(-1)).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Latha, D. Kavyashree, D. R. Lavanya, G. P. Darshan, J. Malleshappa, T. B. Nijalingappa, H. Nagabhushana
Summary: A series of Dy3+ doped BiOCl NPs were fabricated using Aloe Vera gel as a bio-surfactant via ultrasound assisted sonochemical route. The morphology of the nanophosphor was engineered by varying experimental parameters, showing potential applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Zhen Wang, Jinjin Ban, Kai Su, Han Cheng, Qiankun Geng, Hongsen Wang, Jiaxin Shen, Quanli Jia, Zongtao Zhang, Xinhong Liu
Summary: Polycrystalline SiC nanostructures were successfully synthesized using a modified molten salt shielded synthesis method. The synthesized SiC nanopowders exhibited excellent photoluminescence property and small band gaps, making them attractive for UV luminescence devices.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Lamia Al-Farsi, Tewfik M. Souier, Muna Al-Hinai, Myo T. Z. Myint, Htet H. Kyaw, Hisham M. Widatallah, Mohammed Al-Abri
Summary: The low-temperature microwave-assisted hydrothermal method was used to successfully grow pure and Al-doped ZnO nanorod arrays on glass substrates. The effects of doping and pH on the structural and optical properties of the samples were investigated, and a growth mechanism considering both the pH and Al-doping was proposed. Tuning the solution pH is crucial for growing well-aligned, high-quality nanorod arrays with enhanced optical absorption in the visible range. The production of these arrays would broaden the potential applications of ZnO and AZO nanorods.
Article
Materials Science, Multidisciplinary
Mohammad Javad Hakimi-Tehrani, S. A. Hasanzadeh-Tabrizi, Narjes Koupaei, Ali Saffar, Mahdi Rafiei
Summary: Efficient adsorbents for dye extraction from wastewater are highly sought after due to water pollution. This study successfully synthesized a ternary g-C3N4/ZnO/WO3 nanostructure composite using a simple in-situ procedure, and investigated its strong adsorption properties and antibacterial characteristics. The composite demonstrated fast adsorption of methylene blue and effective antibacterial activity against Escherichia coli and Staphylococcus aureus.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yan Bao, Lu Gao, Caiping Feng, Jianzhong Ma, Shuang Lyu
Summary: In this study, ZnO nanostructures with different morphologies were successfully synthesized using ultrasonic technology in the presence of ethylene glycol. Precise control over the morphology of ZnO was achieved by manipulating factors such as water content and ultrasound time. The results suggest that water content and ultrasound time are the key factors influencing the morphology of ZnO.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Ceramics
Umesh T. Nakate, Yeon-Tae Yu, Sungjune Park
Summary: This study reports the gas sensing properties of zinc oxide (ZnO) powder with novel 2D nanoflake morphologies prepared using a hydrothermal technique towards hydrogen sulphide (H2S) gas. The sensors showed a high response to H2S gas at 250 ?C, with excellent repeatability.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Analytical
V. S. Sanjana Devi, B. Balraj, C. Siva, S. Amuthameena
Summary: A green hydrothermal synthesis method was used to synthesize Ga3+ doped ZnO 3D nanosatellite structures. XRD analysis revealed the crystal structure of the nanostructures to be hexagonal wurtzite type. FESEM images showed the evolution of 3D morphology in accordance with Ga doping concentration. TEM images provided physical specifications of the 3D nanosatellite structures. Optical absorbance and photoluminescence spectra confirmed the electron rich state of Ga3+ doped ZnO. Gas sensing performance of the nanosatellites showed selectivity towards CO gas at a working temperature of 250 degrees C, with 5% Ga3+ doped ZnO exhibiting high CO sensing and attractive sensing characteristics.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Optics
Mahyar Mazloumi, Yazan Bdour, Carlos Escobedo, Ribal Georges Sabat
Summary: Large-scale hierarchical macroscopic moire gratings resembling the surface structure of Peruvian lily flower petals are fabricated on azobenzene molecular glass thin films using a Lloyd's mirror interferometer. The obtained moire gratings have two-fold or three-fold hierarchical structures fabricated using a simple all optical technique, as confirmed by various microscopy and surface profilometry techniques.
Article
Engineering, Biomedical
Seyed Yahya Rahnamaee, Shahab Ahmadi Seyedkhani, Aylar Eslami Saed, Sayed Khatiboleslam Sadrnezhaad, Ashkan Seza
Summary: This study investigated the effects of different bioinspired coatings on titanium alloy surfaces to address common issues in hard-tissue implant failure. The results showed that these coatings could enhance the adhesion strength between coatings and titanium alloy, and exhibited good cell viability and mechanical properties, which could potentially improve the long-term stability of implants.
BIOMEDICAL MATERIALS
(2022)
Article
Neurosciences
Edgar Bermudez-Contreras, Andrea Gomez-Palacio Schjetnan, Artur Luczak, Majid H. Mohajerani
Summary: Repeated tactile or auditory stimulation selectively modifies the spatiotemporal patterns of cortical activity, mainly in the late evoked response. This modification lasts up to 60 minutes and only affects the evoked responses of the sensory modality receiving the repeated stimulation.
Article
Neurosciences
Shakhawat R. Hossain, Hadil Karem, Zahra Jafari, Bryan E. Kolb, Majid H. Mohajerani
Summary: Alzheimer's disease is a major global health crisis, and current treatment options are limited. This study found that tactile stimulation can reduce symptoms and pathology in AD mice. Therefore, tactile stimulation may be a promising strategy for treating dementia in aging animals.
Article
Virology
Marcel Jaron, Michael Lehky, Marta Zara, Chris Nicole Zaydowicz, Aidin Lak, Rico Ballmann, Philip Alexander Heine, Esther Veronika Wenzel, Kai-Thomas Schneider, Federico Bertoglio, Susanne Kempter, Reinhard Wolfgang Koester, Silvia Stella Barbieri, Joop van den Heuvel, Michael Hust, Stefan Duebel, Maren Schubert
Summary: This study presents a fast and powerful method for producing SARS-CoV-2 VLPs in insect cells and evaluating their ability to inhibit monoclonal antibodies and sera from vaccinated donors. The method involves direct plasmid transfection to co-express specific viral proteins, resulting in the self-assembly of VLPs. The VLPs obtained were confirmed to have a diameter of approximately 145 nm and exhibited characteristic features by nanoparticle tracking analysis and transmission electron microscopy. The fusion of membrane protein with GFP allowed for quantification of binding inhibition to ACE2 without the need for purification or labeling.
Article
Materials Science, Multidisciplinary
Matthew Boxer, Mahyar Mazloumi, Peter Snell, Paul Rochon, Ribal Georges Sabat
Summary: Custom acrylic multifaced pyramids were used to fabricate photonic crystals and quasicrystals on azobenzene molecular glass thin films. The resulting microcavities exhibited rotational symmetry and anisotropic and Moire photonic structures were also achieved.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Metallurgy & Metallurgical Engineering
Roghayeh Haghjoo, Sayed-Khatiboleslam Sadrnezhaad, Nahid Hassanzadeh-Nemati
Summary: Integrating implants with the surrounding bone tissue is a significant challenge in medical engineering. In this study, titanium foams with various pore morphologies were fabricated using powder metallurgy and their influence on cell attachment was evaluated. The results provide valuable insights for the application of porous titanium in bone defect restoration.
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mohammad Suman Chowdhury, Enja Laureen Roesch, Daniel Arenas Esteban, Klaas-Julian Janssen, Florian Wolgast, Frank Ludwig, Meinhard Schilling, Sara Bals, Thilo Viereck, Aidin Lak
Summary: Researchers designed monodisperse magnetic nanocubes of different sizes and compositions, and achieved ultrahigh sensitivity by decoupling their physical properties. They found that tricomponent Zn0.06Co0.80Fe2.14O4 particles showed ultrahigh magnetic sensitivity, despite having lower saturation magnetization. These Zn0.06Co0.80Fe2.14O4 particles, coated with catechol-based poly(ethylene glycol) ligands, exhibited 3 orders of magnitude better particle limit of detection than commercial nanoparticles of comparable size.
Article
Materials Science, Multidisciplinary
Mahyar Mazloumi, Eoin Dawson, Ribal Georges Sabat
Summary: Bessel laser beams generated by an axicon lens were used for the fabrication of hierarchical concentric surface patterns onto azobenzene molecular glass thin films. The resulting structures were characterized in details by atomic force and scanning electron microscopy, as well as surface profilometry, as the fabrication parameters were modified during the laser inscription process. It was found that the hierarchical concentric surface patterns on the azobenzene film reached overall heights that are surprisingly 5 times larger than the original film thickness. The presented axicon interference lithography technique was also used to fabricate novel metasurfaces on azobenzene thin films.
Article
Biology
Javad Karimi Abadchi, Zahra Rezaei, Thomas Knopfel, Bruce L. McNaughton, Majid H. Mohajerani
Summary: Coordinated peri-ripple activity in the hippocampal-neocortical network is crucial for brain's mnemonic processing. Neocortical activity in awake mice differed from that in sleep, with dominantly seen deactivation and activation in post-ripple voltage and glutamate activity, respectively. The peri-ripple modulation patterns of neocortical activity in sleep versus awake states might explain the functional differences observed in sleep versus awake ripples.
Article
Optics
Farzad Firouzi, Sayed Khatiboleslam Sadrnezhaad
Summary: Due to the various sample preparation techniques and optical measurement strategies, there are different experimental datasets available for the complex dielectric function of gold. Evaluating and selecting the most reliable datasets is crucial for optical-based designs and applications. The Brendel-Bormann model, known for its accuracy, is used as a criterion, with MS Excel being employed for its calculation. 'Palik' and 'Babar' are found to have the most accurate datasets for the real part of the dielectric function in the short- and long-wavelength ranges, respectively, while the reverse is true for the imaginary part. The validity of these datasets is attributed to using gold samples with minimal structural and surface imperfections.
JOURNAL OF MODERN OPTICS
(2023)
Article
Cell Biology
Mojtaba Nazari, Javad Karimi Abadchi, Milad Naghizadeh, Edgar J. Bermudez-Contreras, Bruce L. McNaughton, Masami Tatsuno, Majid H. Mohajerani
Summary: Sleep consists of NREM and REM stages. Recent studies have found slow wave activity in local cortical regions during REM sleep. Using mesoscale imaging in mice, we mapped cortical activity gradients during REM sleep and found that slow waves mainly occur in somatomotor and auditory regions, with fewer occurrences in the default mode network. Additionally, we explored the role of the cholinergic system in local desynchronization during REM sleep.
Article
Green & Sustainable Science & Technology
P. Vahdatkhah, O. Voznyy, S. K. Sadrnezhaad
Summary: The reversibility of anionic and cationic redox in Co-free concentration-gradient LLO was improved by integrating oxygen vacancies and high Ni/Mn ratio on LLO's surface, resulting in enhanced capacity of the cathode. This work provided a practical approach for resolving the capacity decay of Co-free LLOs by engineering the cathode/electrolyte interface and structure.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Alexa Smith, Mahyar Mazloumi, Lucas Karperien, Carlos Escobedo, Ribal Georges Sabat
Summary: Bioinspired nanoplasmonic 3D crossed surface relief gratings and metasurfaces are used to create effective antibacterial surfaces on azobenzene molecular glass thin films. The mechanical and photothermal interaction between the nanostructures and Escherichia coli bacteria results in a significant decrease in viable bacterial population. The combined exposure to interfacial nanospikes and evanescent blue and red electromagnetic fields induced by the nanoplasmonic metasurface leads to a 97% reduction in viable E. coli in only 25 minutes when illuminated with low-power white light.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Asadollahi, Reza Alizadeh, Sayed Khatiboleslam Sadrnezhaad
Summary: In this study, the effects of adding silver and copper antibacterial elements on the microstructure, mechanical properties, and degradation behavior of as-cast Mg-2Zn alloy were investigated. The results showed that both silver and copper had significant grain refinement effects and formed different precipitates in the alloy. The addition of silver and copper also improved the ultimate shear strength values, but increased the hydrogen evolution rate. Solution treatment effectively reduced the degradation rate.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
