Article
Chemistry, Physical
Lana Omar Ahmed, Niyazi Bulut, Hanifi Kebiroglu, Mohammad Alkhedher, Tankut Ates, Suleyman Koytepe, Burhan Ates, Omer Kaygili, ElSayed M. Tag El Din
Summary: This study investigated the yttrium and erbium co-doping in hydroxyapatite structures for the first time using theoretical and experimental methods. The materials were synthesized with varying yttrium concentration and constant erbium concentration, and then tested for spectroscopic, thermal, and biocompatibility properties. The study found that increasing yttrium concentration affected the thermal, morphological, and structural parameters of the materials, while erbium concentration had no significant effect. Theoretical calculations showed that increasing yttrium concentration led to increased density and decreased bandgap energy, except for the sample with 0.39 at.% erbium. Experimental results demonstrated excellent biocompatibility of the prepared samples.
Article
Materials Science, Ceramics
Xuefei Wang, Yuxin Fan, Guoqiang Luo, Rong Tu, Qiang Shen, Lianmeng Zhang
Summary: With the increasing application rate of multilayer ceramic capacitors (MLCCs) in small electronic devices, there is a need for the use of barium titanate (BaTiO3) raw material with small particle size and excellent dielectric properties. In this study, small cubic phase Y-doped BaTiO3 (BYT) nanoparticles were prepared using a hydrothermal method, and highly dielectric tetragonal phase BYT ceramics were prepared based on this method. The results demonstrate that the 50 nm cubic phase BaTiO3 powder can meet the needs of next-generation high-capacity MLCCs, providing a reference for small cubic phase BaTiO3 as a dielectric material for high-capacity MLCCs.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Multidisciplinary
Zhongxu Li, Kai Huang, Yanda Ji, Yang Cheng, Xiaomeng Zhao, Min Zhou, Tiangui You, Shibin Zhang, Xin Ou
Summary: Ion implantation is essential for the transfer of LN and LT thin films on handle wafers to form a high performance RF filter platform. Different crystal planes exhibit different mechanical responses, resulting in tensile or compressive strains on the sample surface and various planes.
Article
Electrochemistry
Hayley Hirsh, Yixuan Li, Ju-Hsiang Cheng, Ryosuke Shimizu, Minghao Zhang, Enyue Zhao, Ying Shirley Meng
Summary: This study investigates the oxygen redox activity induced by transition metal ordering in the P2-type Na0.8Li0.12Ni0.22Mn0.66O2 cathode synthesized by carbonate co-precipitation. Irreversible oxygen activity is observed, correlated with Ni migration causing the loss of transition metal ordering in the structure. Ni migration has a detrimental effect on transition metal ordering and reversibility of oxygen redox at high voltage.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Metallurgy & Metallurgical Engineering
Ajay Jaswal, Sushant Samir, Alakesh Manna
Summary: Hydroxyapatite (HAp) was synthesized from hen eggshell using a precipitation method with varying concentrations of orthophosphoric acid (H3PO4). The study aimed to investigate the effect of H3PO4 concentration on the synthesis. Hen eggshells were calcined to obtain calcium oxide (CaO), which was then dissolved in distilled water to form Ca(OH)2. By mixing H3PO4 with the Ca(OH)2 solution, HAp specimens with different concentrations were created. Characterization of the synthesized powder using FTIR, XRD, and SEM-EDS showed crystallinity, average crystallite size, functional groups, and crystalline formation of the HAp powder. The developed biodegradable HAp can be utilized for osseointegration and fabrication of bone-like structures.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2023)
Article
Materials Science, Multidisciplinary
Hiral D. Shah, D. A. Dadhania, J. A. Bhalodia
Summary: This study synthesizes (1 -x)PbTiO3 + (x)La0.7Sr0.3MnO3 composite samples and investigates their structural, ferroelectric, dielectric, and impedance properties. The results show that the composite samples have PbTiO3 phase with a tetragonal structure and LSMO phase with a tetragonal structure. The variation of grain growth and dielectric properties change with the increase of LSMO content.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Multidisciplinary Sciences
El Hassan Yahakoub, Amine Bendahhou, Ilyas Jalafi, Fatima Chaou, Soufian EL Barkany, Zahra Bahari, Mohamed Abou-Salama
Summary: The effects of Na+ substitution by Y3+ on the structural, microstructural, dielectric and electrical properties of Ba2Na(1-3x)YxNb5O15 compositions have been studied. The dielectric properties improved with Y2O3 substitution and the microstructure changed in response to increasing Y3+ concentration.
Article
Chemistry, Inorganic & Nuclear
Lana Omar Ahmed, Niyazi Bulut, Luis Banares, Omer Kaygili, Hanifi Kebiroglu, Tankut Ates, Suleyman Koytepe, Burhan Ates
Summary: This work investigates Ce3+ and Er3+ co-doped hydroxyapatite (HAp) structures theoretically and experimentally for the first time. The Ce3+ content was varied incrementally from 0.13 at. % to 0.78 at. %, while the Er3+ content remained constant at 0.39 at. % for all samples. Various analyses were performed, and the results showed that the thermal behavior, morphology, and crystal structure-related parameters were significantly influenced by the concentration of Ce3+. The formation of HAp structures was confirmed through FTIR and Raman spectroscopy, and theoretical calculations revealed changes in density and bandgap with the addition of Ce3+.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Construction & Building Technology
Paulo R. de Matos, Jose S. Andrade Neto, Daniel Jansen, Angeles G. De la Torre, Ana Paula Kirchheim, Carlos E. M. Campos
Summary: This paper discusses the use of in-situ laboratory XRD to assess cement hydration. It provides a literature review, discusses experimental strategies, recommends data analysis routine, and discusses the advantages and limitations of this technique.
CEMENT AND CONCRETE RESEARCH
(2022)
Article
Chemistry, Physical
Khalid Mujasam Batoo, Ritesh Verma, Ankush Chauhan, Rajesh Kumar, Muhammad Hadi, Omar M. Aldossary, Y. Al-Douri
Summary: This study reported the synthesis of Gd and Nb co-doped BT ceramic oxides and investigated their structural and electrical properties. Various analysis techniques were used to characterize the samples, revealing the influence of Gd and Nb doping on the electrical properties of the ceramic materials, which were found to improve with increasing dopant concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Multidisciplinary Sciences
Suravi Islam, Nazia Khatun, Md. Shehan Habib, Syed Farid Uddin Farhad, Nazmul Islam Tanvir, Md. Aftab Ali Shaikh, Samia Tabassum, Dipa Islam, Md. Sajjad Hossain, Ayesha Siddika
Summary: In this study, Yttrium-doped Barium Titanate (Y-BT) perovskite ceramics were synthesized using the sol-gel method and their structural, electrical, and optical properties were investigated. The results showed that the crystallite size of Y-BT initially increased with Y-doping, but decreased with further increase in Y3+ concentration. The Yttrium doping enhanced the dielectric properties and optical band gap energy of the materials.
Article
Materials Science, Multidisciplinary
Azra Parveen, Shraddha Agrawal
Summary: Ni1-xCoxO (x = 0, 3, 7, 10%) nanoparticles were synthesized using microwave gel combustion method. Structural analysis revealed a crystallite size ranging from 13.11 to 19.03 nm, determined by Transmission Electron Microscopy (TEM) and Debye-Scherrer's method. The Co-doped NiO NPs exhibited enhanced dielectric permittivity, ferromagnetic nature, and improved antibacterial activity, making them potential candidates for diluted magnetic semiconductors, spintronic and electronic devices, and antimicrobial nanomaterials development.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Polymer Science
Aleksandra Radko, Sebastian Lalik, Aleksandra Deptuch, Teresa Jaworska-Golab, Robert Ekiert, Natalia Gorska, Katarzyna Makyla-Juzak, Jacek Niziol, Monika Marzec
Summary: The study investigated DNA complexes with different surfactants using Fourier transform middle infrared spectroscopy, X-ray diffraction and dielectric spectroscopy methods, confirming electrostatic interactions in complex formation. A packing model for the complex molecules, depending on the type of surfactant, was proposed based on SAXS results. The dielectric process in low frequency range was interpreted as oscillation of surfactant ions, similar to ions in pure DNA solutions.
Article
Chemistry, Multidisciplinary
Sofia L. Ramirez-Rosas, Enrique Delgado-Alvarado, Luis O. Sanchez-Vargas, Agustin L. Herrera-May, Mariana G. Pena-Juarez, J. Amir Gonzalez-Calderon
Summary: In this study, isolated polyphenolic compound quercetin was utilized as a reducing agent to synthesize silver nanoparticles at neutral pH, with microcrystalline cellulose and maltodextrin as stabilizing agents. The ideal ratio of quercetin to stabilizing agent was found to be 1:2, resulting in stable AgNPs with improved antimicrobial activity for 2 months. This eco-friendly and cost-effective method demonstrated the importance of using food stabilizer for long-term stability of AgNPs.
Article
Cell & Tissue Engineering
Obaid Albulym, Omer Kaygili, Mai S. A. Hussien, H. Y. Zahran, Mona Kilany, R. Darwish, Niyazi Bulut, Ahmed Alshahrie, I. S. Yahia
Summary: This study revealed that the addition of Y-ions into the HAp matrix led to a decrease in crystallinity, changes in lattice parameters, and unit cell volume. Y-doped HAp nanoparticles exhibited inhibitory effects against bacteria and fungi.
JOURNAL OF BIOMATERIALS AND TISSUE ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Serdar Acar, Omer Kaygili, Tankut Ates, Sergey Dorozhkin, Niyazi Bulut, Burhan Ates, Suleyman Koytepe, Filiz Ercan, Hanifi Kebiroglu, Ala Hamd Hssain
Summary: The study found that the addition of Yb affected the structure and properties of Ce-doped HAp samples, resulting in single-phase compositions and no significant changes in thermal stability. Doping with Yb caused variations in lattice parameters and decreased crystal size and cell viability.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Physics, Condensed Matter
Ismail Ercan, Omer Kaygili, Tarek Kayed, Niyazi Bulut, Huseyin Tombuloglu, Turan Ince, Fatimah Al Ahmari, Hanifi Kebiroglu, Tankut Ates, Atheel Almofleh, Fatih Firdolas, Oguz Koysal, Ebtesam Abdullah Al-Suhaimi, Taher Ghrib, Huseyin Sozeri, Mesut Yildiz, Filiz Ercan
Summary: This study investigated the effects of Cu and Fe additives on hydroxyapatite samples, revealing their impact on thermal behavior, morphology, and energy band gap values. The addition of Cu resulted in spherical-like particles with low agglomeration and decreased band gap values in the Fe-based HAp structure.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Ceramics
Filiz Ercan, Tarek S. Kayed, Omer Kaygili, Niyazi Bulut, Dana Almohazey, Tankut Ates, Fatimah Saad Al-Ahmari, Ilker Ay, Tuna Demirci, Gokhan Kirat, Tahani Flemban, Turan Ince, Taher Ghrib, Ebtesam Abdullah Al-Suhaimi, Ismail Ercan
Summary: This study examines the effects of Ni and Sr additives on the properties of hydroxyapatite (HAp) samples. The results show that the addition of Ni and Sr contributes to the development of thermal, magnetic, and dielectric properties required for medical applications in bone healing and regeneration. The cytotoxicity test reveals that certain Sr/Ni-HAp samples have high cellular viability. Overall, Sr/Ni-HAp nanoparticles have promising potential in the field of bone healing and regeneration.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
A. Aksogan Korkmaz, Lana Omar Ahmed, Rebaz Obaid Kareem, Hanifi Kebiroglu, Tankut Ates, Niyazi Bulut, Omer Kaygili, Burhan Ates
Summary: This report presents the first study on Bi and Sn co-doped hydroxyapatite structures. Theoretical calculations and experimental results showed that Bi content significantly influences the thermal behavior, morphology, and X-ray diffraction parameters. Furthermore, the material was found to be biocompatible.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Lana Omar Ahmed, Niyazi Bulut, Fatih Osmanlioglu, Beyhan Tatar, Hanifi Kebiroglu, Tankut Ates, Suleyman Koytepe, Burhan Ates, Serhat Keser, Omer Kaygili
Summary: The Pr and Er co-doped hydroxyapatites (HAps) were investigated theoretically and experimentally. The Pr content was varied from 0.13% to 0.78%, while the Er content remained constant at 0.39%. Theoretical results showed an increase in density and a decrease in bandgap with increasing Pr content. X-ray diffraction patterns revealed that all samples consisted of a single phase of HAp. The crystallinity decreased gradually with the addition of Pr. The cell viability of all samples was higher than 83%.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Ceramics
Fatih Isen, Omer Kaygili, Niyazi Bulut, Tankut Ates, Fatih Osmanlioglu, Serhat Keser, Beyhan Tatar, Imren Ozcan, Burhan Ates, Filiz Ercan, Ismail Ercan, Rebaz Obaid Kareem
Summary: The effects of adding Dy to the hydroxyapatite (HAp) structure were experimentally and theoretically investigated. Experimental results showed that Dy-doped HAps had affected crystallinity, lattice parameters, lattice stress, strain, and anisotropic energy density, but thermal stability and stoichiometry were not affected. The cell viability of the samples was found to be higher than 82%. Theoretical findings indicated a decrease in bandgap, an increase in density, and an increase in the linear absorption coefficient.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ibrahim Isah Nasidi, Cahit Orek, Abdul Majid, Sayed M. Eldin, Omer Kaygili, Niyazi Bulut
Summary: This research conducted a comprehensive study of dopamine using the theoretical first principles method. The compound was optimized using various basis sets and functionals to attain stability, and then doped with halogens to analyze their effects on electronic and spectroscopic properties. It was found that the band gap of the system changes depending on the halogen doping.
Article
Chemistry, Physical
Hulya Gunes Ates, Omer Kaygili, Niyazi Bulut, Fatih Osmanlioglu, Serhat Keser, Beyhan Tatar, Bahroz Kareem Mahmood, Tankut Ates, Filiz Ercan, Ismail Ercan, Burhan Ates, Imren Ozcan
Summary: The present study aims to provide a detailed report on the properties of hydroxyapatites (HAps) co-doped with Sr and Ce at different amounts, including structural, thermal, magnetic, and in vitro cell viability properties. The study includes experimental analyses as well as theoretical calculation results. All the samples exhibited diamagnetic behavior and high cell compatibility, and showed thermally stable behavior. The amount of co-dopants affected the mass change mechanism, specific heat capacity, bandgap value, and linear absorption coefficient.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Maha Alanazi, Taher Ghrib, Filiz Ercan, Mizna Alsubaie, Tuna Demirci, Omer Kaygili, Tarek S. Kayed, Ismail Ercan
Summary: Heterojunctions of alternating MnO2 and NiO thin films were successfully synthesized and characterized. Increasing the number of NiO/MnO2 heterojunctions improves the electrical conductivity and specific capacitance, while reducing the bandgap.
SURFACES AND INTERFACES
(2023)
Review
Materials Science, Composites
Sergey V. V. Dorozhkin
Summary: This article reviews various production techniques for biocompatible calcium orthophosphate (CaPO4) deposits on various surfaces to enhance the biocompatible properties of artificial bone grafts. It provides a comprehensive summary of the known CaPO4 deposition techniques and their physical and chemical principles, as well as the current biomedical applications of CaPO4 deposits and possible future developments.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Multidisciplinary Sciences
Niyazi Bulut, Omer Kaygili, Ala Hamd Hssain, Sergey V. Dorozhkin, Benahmed Abdelghani, Cahit Orek, Hanifi Kebiroglu, Tankut Ates, Rebaz Obaid Kareem
Summary: The effects of Mg co-doping on the band structures and electronic properties of Zn-based hydroxyapatites were investigated theoretically. It was found that co-doping influenced the structural and electronic properties of the studied structures, leading to a decrease in lattice parameters and band gap energy with increasing doping levels. The results provide insights into the design and optimization of Zn-based hydroxyapatites for various applications.
IRANIAN JOURNAL OF SCIENCE
(2023)
Article
Multidisciplinary Sciences
Taher Ghrib, Filiz Ercan, T. S. Kayed, Tahani H. Flemban, Mesut Yildiz, Omer Kaygili, Ismail Ercan
Summary: The study reported the investigation of structural, microstructural, optical, dielectric, and magnetic properties of three double perovskite materials synthesized by solid-state reaction. The materials exhibited monoclinic crystal structure and consistent elemental mappings with sample concentrations. The research showed the potential of the materials for microelectronic applications in circuit devices.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)
