Article
Materials Science, Multidisciplinary
Svetlana Butulija, Vojislav Spasojevic, Goran Brankovic, Marija Prekajski Dordevic, Tamara Radulovic, Aleksandra Zarubica, Branko Matovic
Summary: Spider silk-maghemite composite with superparamagnetic properties was obtained by a simple and fast co-precipitation method. The thermal stability of the composite was improved by the maghemite nanoparticles, and it holds potential applications in various fields.
Article
Chemistry, Physical
O. M. Lemine, Nawal Madkhali, Marzook Alshammari, Saja Algessair, Abbasher Gismelseed, Lassad El Mir, Moktar Hjiri, Ali A. Yousif, Kheireddine El-Boubbou
Summary: The study investigated the heating efficiencies of gamma-Fe2O3 and hybrid gamma-Fe2O3-TiO2 nanoparticles under an alternating magnetic field, showing that gamma-Fe2O3 exhibited better heating efficiency potential for magnetic hyperthermia treatment. The results suggest that the fabricated nanocomposites have great potential for various applications, particularly in magnetic photothermal hyperthermia treatments.
Article
Chemistry, Multidisciplinary
Johannes Dietrich, Alexius Enke, Nils Wilharm, Robert Konieczny, Andriy Lotnyk, Andre Anders, Stefan G. G. Mayr
Summary: Iron oxide nanoparticles with a mean size of approximately 5 nm were synthesized using energetic electrons to irradiate micro-emulsions containing iron salts. The properties of the nanoparticles were investigated using various techniques, revealing that the formation of superparamagnetic nanoparticles starts at a dose of 50 kGy. The particles tend to form clusters and show increasing crystallinity and yield with increasing doses.
Article
Engineering, Electrical & Electronic
A. L. Kozlovskiy, K. Egizbek, M. Zdorovets, R. Sh Abdinov, K. K. Kadyrzhanov
Summary: This study focuses on investigating the effect of Nd2O3 dopant concentration on the properties of Fe2O3@NdFeO3-type nanocomposites, revealing that an increase in dopant concentration leads to the dominance of the NdFeO3 phase, which shows promising potential for purifying water media from heavy metals.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Rashmi Joshi, Bheeshma Pratap Singh, C. L. Prajapat, Yogesh Kashyap, Chandrani Nayak, Dibyendu Bhattacharyya, Raghumani Singh Ningthoujam
Summary: The study describes the preparation of core-shell monodispersed nanoparticles with different shell thicknesses and explains the microscopic origin of their magnetic properties and crystal structure through experimental results.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Multidisciplinary Sciences
Widodo Brontowiyono, Widad Abdullah AbdulHussein, Ghassan Fadhil Smaisim, Mustafa Z. Mahmoud, Sonia Singh, Holya A. Lafta, Shaymaa Abed Hussein, Mustafa M. Kadhim, Yasser Fakri Mustafa, Surendar Aravindhan
Summary: In this study, hematite nanoparticles were synthesized via a facile and fast method and their photocatalytic activity was investigated. The results showed that these nanoparticles have potential application as efficient degradation agents for cationic dyes, such as methyl green.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Physics, Condensed Matter
Anfal Aldaoud, O. M. Lemine, N. Ihzaz, L. El Mir, Sharif Abu Alrub, Kheireddine El-Boubbou
Summary: We report the preparation, characterization, and heating efficiencies of undoped and Co-doped gamma-Fe2O3 nanoparticles for magnetic hyperthermia applications. The undoped gamma-Fe2O3 nanoparticles showed better heating efficiency compared to Co-doped samples. The results demonstrate the potential of these nanoparticles for magnetic hyperthermia applications.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Ceramics
Irfan Khan, Erno Kuzmann, Kiyoshi Nomura, Ahmad S. Ali, Kazuhiko Akiyama, Zoltan Homonnay, Katalin Sinko, Luka Pavic, Shiro Kubuki
Summary: Glass samples with different compositions were prepared using sol-gel method and characterized using various techniques. The presence of nanoparticles of hematite and maghemite doped with Al was confirmed with the increase of alumina contents. The catalysts containing a mixture of hematite and maghemite nanoparticles showed higher photocatalytic degradation of Rhodamine B dye than those containing hematite alone. Future materials for water purification under visible light irradiation should have multiple bandgaps and not dissolve themselves.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Physics, Multidisciplinary
H. Husain, N. Nurhayati, A. Susanto, E. H. Sujiono, Y. Taryana, K. Krisdayanti
Summary: This study successfully synthesized hematite (α-Fe2O3) and maghemite (γ-Fe2O3) nanopowders from natural ironstone using the coprecipitation method. The synthesis process was varied to obtain different phases by adjusting the acidic environments. The crystal and microstructure were investigated using XRD and SEM, while the microwave absorption properties were examined using a VNA. The results showed that the acidic environments influenced the structure and microwave absorption, with enhanced absorption properties observed after the precipitation process.
Article
Materials Science, Ceramics
Deep Sharma, Nidhi Patel, Sanjay Panjabi, Vaibhav Patel
Summary: This study presents the synthesis and characterization of PVP-PEO nanofibers loaded with PbS nanoparticles. SEM analysis demonstrated that smooth and homogeneous nanofibers could be obtained at 12% PVP-PEO (50:50 wt%) concentration. XRD and TEM analysis confirmed the formation of highly crystalline PbS nanoparticles in the PVP-PEO blend matrix. FTIR and TGA studies revealed the interaction between PbS nanoparticles and the polymer blend matrix. UV-Vis diffuse reflectance studies showed a blue shift in the reflectance onset compared to bulk PbS, and the optical bandgap ranged from 1.08 to 1.56 eV by varying the PbS concentration.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
B. A. Patil, Jitendra S. Kounsalye, Ashok Humbe, R. D. Kokate
Summary: Tetravalent titanium-substituted nickel ferrite nanoparticles were prepared using the sol-gel auto-combustion method. XRD analysis indicated that, except in some cases, the samples exhibited a single-phase cubic spinel structure. The crystallite size and lattice constant varied with the amount of titanium substitution, with the lattice constant decreasing as the titanium content increased.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
I Anila, B. B. Lahiri, Jacob Mathew, John Philip
Summary: The study demonstrates the viscosity-independent magnetic hyperthermia properties of chitosan-coated ultrafine CoFe2O4 MNPs, showing higher field-induced heating efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Marie-Charlotte Horny, Jean Gamby, Vincent Dupuis, Jean-Michel Siaugue
Summary: Magnetic hyperthermia on core-shell nanoparticles has shown promising advancements in biomedical applications, allowing for the release of DNA targets to mimic specific biological molecules. Silica-coated magnetic nanoparticles demonstrate efficient heating capabilities while maintaining low solution temperatures, making them suitable for biological media and energy efficiency.
Article
Chemistry, Physical
Daniel Horak, Karolina Turnovcova, Zdenek Plichta, Dana Marekova, Vladimir Proks, Radek Kaiser, David Netuka, Pavla Jendelova
Summary: In this study, a block copolymer consisting of PHP and PMAH was synthesized and conjugated with Dox and/or RGDS targeting peptide to create nanoparticles that can reduce glioblastoma tumor growth. The nanoparticles were found to effectively decrease tumor size and induce more apoptosis in treated cells compared to untreated cells.
COLLOID AND POLYMER SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Hisham Alnahari, A. H. Al-Hammadi, Annas Al-Sharabi, Adnan Alnehia, Abdel-Basit Al-Odayni
Summary: In this study, the influence of citric acid (CA) concentration on the properties of CuO-Fe2O3-MgO-CuFe2O4 nanocomposites (NCs) was investigated. The NCs were synthesized via auto-combustion method and characterized using various techniques. The results showed that the crystal structure and energy gap of the NCs were affected by the CA concentration. The NCs exhibited adequate antibacterial activity against both Gram-negative and Gram-positive bacteria, with higher activity against Gram-positive bacteria and increased activity with higher CA concentration.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Rajwali Khan, Naveed Ur Rehman, Nasir Ilyas, Nourreddine Sfina, Mohamed Barhoumi, Alamzeb Khan, Khaled Althubeiti, Sattam Al Otaibi, Shahid Iqbal, Nasir Rahman, Mohammad Sohail, Asad Ullah, Tommaso Del Rosso, Quaid Zaman, Abid Ali Khan, Sherzod Sh. Abdullaev, Aurangzeb Khan
Summary: Electronic devices with biomimetic behavior, such as electronic synapses and neurons, have led to a new era in information and humanoid robotics technologies. A nickel-doped zinc oxide (NZO)/Au-based memristor is fabricated for artificial nociceptor applications, exhibiting various nociceptive functions depending on the external stimuli. This NZO-based device produces a multifunctional nociceptor performance that is essential for applications in artificial intelligence systems.
Article
Physics, Condensed Matter
Qianhui Mao, Yingying Xu, Ruixue Li, Yuan Wang, Haidong Li, Lisha Xue, Haoshan Hao, Rajwali Khan, Bin Chen, Jinhu Yang
Summary: The magnetic properties, magnetic entropy change, and critical behavior of Mn1/4+delta NbS2 single crystals were investigated. Two magnetic phase transitions were observed, and the effective magnetic moment and saturation moment were deduced. The magnetic entropy change exhibited two series of peaks, and the critical exponents were analyzed, indicating competing magnetic couplings in the crystal.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Analytical
Fernando Lazaro Tahir, Fernando Lazaro Q. Freire Jr, Ricardo Aucelio, Marco Cremona, Juliana da S. Padilha, Giancarlo Margheri, Quaid C. Zaman, Guilherme Concas, Mariana Gisbert, Sajjad Ali, Carlos A. T. E. Toloza, Yordy D. Licea, Tatiana S. Saint'Pierre, Rafael Carvalho, Rajwali Khan, Gino Mariotto, Nicola Daldosso, Geronimo Perez, Tommaso Del Rosso
Summary: Sensors for heavy metal ion detection in water are in high demand due to their harmful effects. This study synthesized luminescent oxidized AuNCs as a potential alternative method to complex and costly instrumentation. The bleached AuNCs colloidal dispersions showed different responses in the UV and blue spectral regions when detecting Cd2+, Pb2+, Hg2+ and CH3Hg+ ions. The detection limit for Hg2+ was found to be 3 ppb (15 nmol/L).
Article
Engineering, Electrical & Electronic
Aziz Ullah, Inam Ullah Khan, Mohammed Aljohani, Khaled Althubeiti, Nasir Rahman, Mohammad Sohail, Sherzod Shukhratovich Abdullaev, Aurangzeb Khan, Rajwali Khan
Summary: Yttrium and Cobalt co-doped ZnO nanorods were synthesized using the co-precipitation method, and the effects of co-doping on the structure, dielectric, and magnetic responses were studied. The results showed that high co-doping decreased the dielectric properties and increased the electrical conductivity. Co-doped ZnO nanorods exhibited a transformation from diamagnetic behavior to room-temperature ferromagnetism. The increasing O-2 vacancies were found to be closely related to the improved magnetic and electric characteristics of the Zn0.91Y0.05Co0.04O sample.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shabana Begum, Muneeb Ur Rahman, Sattam Al Otaibi, Khaled Althubeiti, Nodira Nazarova, Zulfiqar, Burhan Ullah, Rajwali Khan
Summary: The imidazole derivative 2-(4, 5-Diphenyl-1H-Imidazole-2-yl)phenol was used to fabricate a humidity sensor by drop-casting method between Ag electrodes. The deposited material showed various rectangular-shaped flakes with voids, pores, and pore-channels in the surface morphology. The sensor exhibited capacitance improvement and resistive behaviors at different frequencies (1 kHz and 10 kHz) for humidity levels ranging from 45% to 95% RH.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Biochemistry & Molecular Biology
Fekhra Hedhili, Hukam Khan, Mohammad Sohail, Nasir Rahman, Rajwali Khan, Waed Alahmad, Hissah Saedoon Albaqawi, Shereen Mohammed Al-Shomar, Omar Alsalmi
Summary: This research aims to understand the potential uses of various compounds in fields such as renewable energy, electrical conductivity, optoelectronic properties, photovoltaic devices, and field effect transistors. The study focuses on the AgZF3 (Z = Sb, Bi) compounds using the FP-LAPW and DFT-based low orbital algorithm. Various properties like structure, elasticity, electrical and optical properties can be predicted. The research findings include an increase in bulk modulus value after switching Sb to Bi, revealing the stiffness characteristic of the material, as well as the anisotropy and mechanical balance of the underexplored compounds.
Article
Biochemistry & Molecular Biology
Amjad Ali Pasha, Hukam Khan, Mohammad Sohail, Nasir Rahman, Rajwali Khan, Asad Ullah, Abid Ali Khan, Aurangzeb Khan, Ryan Casini, Abed Alataway, Ahmed Z. Dewidar, Hosam O. Elansary
Summary: This study computationally examined the optical, structural, elastic, electronic, and mechanical properties of aluminum-based compounds AlRF3 (R = N, P) halide perovskites. It was found that AlNF3 and AlPF3 are structurally stable and mechanically resistant compounds. They exhibit anisotropic behavior, strong resistance to plastic strain, and possess ductile nature. AlNF3 is transparent to photons at low energy levels, while AlPF3 is somewhat opaque. These compounds have the potential to be used in making ultraviolet devices based on high frequency.
Article
Crystallography
Muhammad Adil Mahmood, Rajwali Khan, Sattam Al Otaibi, Khaled Althubeiti, Sherzod Shukhratovich Abdullaev, Nasir Rahman, Mohammad Sohail, Shahid Iqbal
Summary: The impact of Co and Gd on the structural, magnetic, and dielectric properties of ZnO nanotubes synthesized by co-precipitation is studied. The results show that incorporating Co and Gd into ZnO decreases crystallinity while maintaining optimum orientation. Co and Gd doping does not affect the morphology of the nanotubes. Decreasing the frequency and concentration of Gd co-dopant leads to an increase in dielectric constant and loss values. The presence of doping results in an inversely proportional relationship between dielectric constant and ac electrical conductivity response. Co and Gd co-doped ZnO nanotubes exhibit ferromagnetic properties at 300K, with an increase in ferromagnetic response as Gd doping increases to 3% and a decrease with further Gd co-doping. Electrical conductivity of the same sample is superior to pure and low Gd doped ZnO, suggesting potential applications in spin-based electronics.
Article
Chemistry, Multidisciplinary
Gohar Ayub, Abdur Rauf, Mudasser Husain, Ali Algahtani, Vineet Tirth, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani, Nourreddine Sfina, Nasir Rahman, Mohammad Sohail, Rajwali Khan, Ahmed Azzouz-Rached, Aurangzeb Khan, Nora Hamad Al-Shaalan, Sarah Alharthi, Saif A. Alharthy, Mohammed A. Amin
Summary: In this study, the properties of fluoroperovskites are computed and examined using density functional theory with different approximations. The lattice parameters and fundamental physical properties of TlXF3 (X = Be, Sr) ternary fluoroperovskite compounds are investigated. The results show that both compounds are insulators with stable and strong mechanical properties. Based on our computations, these compounds have potential applications in industry, providing a reference for future work.
Article
Engineering, Electrical & Electronic
Muhammad Adil Mahmood, Khaled Althubeiti, Sherzod Sh. Abdullaev, Nasir Rahman, Mohammad Sohail, Shahid Iqbal, Kashif Safeen, Akif Safeen, Aurangzeb Khan, Rajwali Khan
Summary: ZnO nanotubes doped with Co and Gd were studied for their structural, magnetic, and dielectric properties. Co and Gd doping reduced the crystallization rate while maintaining optimal symmetry. The morphology of the nanotubes remained unaffected by the doping. Increasing Gd co-doping resulted in higher dielectric constant and dielectric loss values. Doping showed an inverse relationship with the dielectric constant and ac electrical conductivity. At 4% co-doping, ferromagnetic characteristics were observed in the nanotubes. Increasing Gd co-doping beyond this point resulted in a reduced ferromagnetic reaction. The electrical conductivity of Zn0.92Co0.04Gd0.04O nanotubes was superior to pure and less co-doped ZnO. These nanotubes have potential applications in spintronics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Saqib, Nasir Rahman, Kashif Safeen, Saleh D. Mekkey, Mohamed A. Salem, Akif Safeen, Mudasser Husain, Shams u Zaman, Sherzod Abdullaev, Azra Kalsoom, Zeinhom M. El-Bahy, Rajwali Khan
Summary: The authors propose a method to enhance the photodegradation properties of TiO2 nanoparticles by doping them with cobalt and sulfur. The doped TiO2 nanoparticles show significantly improved photoactivity compared to pure TiO2. The study explores the physical mechanisms behind this enhancement and demonstrates the potential for large-scale nanoparticle production for industrial applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Nasir Rahman, Mudasser Husain, Vineeth Tirth, Ali Algahtani, Hassan Alqahtani, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani, Rajwali Khan, Mohammad Sohail, Abid Ali Khan, Ahmed Azzouz-Rached, Aurangzeb Khan
Summary: By using first-principles techniques based on density functional theory, this study investigates the lithium-based halide perovskites LiRCl3 (where R = Be and Mg) using the WIEN2K code. The research confirms the structural stability and transparency of LiMgCl3 and LiBeCl3, suggesting their potential use in optoelectronic devices.
Article
Chemistry, Multidisciplinary
Nasir Rahman, Abdur Rauf, Mudasser Husain, Nourreddine Sfina, Vineet Tirth, Mohammad Sohail, Rajwali Khan, Ahmed Azzouz-Rached, Ghulam Murtaza, Abid Ali Khan, Shaukat Ali Khattak, Aurangzeb Khan
Summary: In this study, the optoelectronic, structural, thermoelectric, and elastic characteristics of M2LiCeF6 (M = Rb and Cs) double perovskite compounds were investigated using ab initio modeling. The compounds were found to be structurally stable and possess mechanical stability, anisotropy, and toughness. They also showed narrow band gaps and exhibited transparency in the low incident photon energy range, making them suitable for high-frequency UV devices. Furthermore, the materials exhibited high electrical conductivity, power factors, and figures of merit (ZT), making them effective thermoelectric resources.
Review
Chemistry, Multidisciplinary
Basmah H. Alshammari, Maha M. A. Lashin, Muhammad Adil Mahmood, Fahad S. Al-Mubaddel, Nasir Ilyas, Nasir Rahman, Mohammad Sohail, Aurangzeb Khan, Sherzod Shukhratovich Abdullaev, Rajwali Khan
Summary: Nanomaterials and nanoparticles are rapidly growing fields in research and technology, with a wide range of applications. Nanoparticles are categorized based on their size, shape, and structure, and have been widely used in engineering and semiconductor device production. ZnO is a stable semiconductor material that is used in various products, from batteries to biomedical sensors. Different growth methods have been developed to synthesize ZnO nanostructures at low temperatures. This review focuses on recent advancements in fabricating semiconductor devices using nanostructured materials and discusses the challenges and prospects in this research field.
Review
Biochemistry & Molecular Biology
Guo Hongfang, Rajwali Khan, Ahmed A. El-Mansi
Summary: This study explores the role of miR-181a in adipogenesis through literature review and bioinformatics analysis. It provides insights into the regulatory functions of miR-181a in fat tissues and its association with adipogenesis, lipid metabolism, obesity, and obesity-related syndromes.
MOLECULAR BIOTECHNOLOGY
(2023)