Article
Chemistry, Multidisciplinary
Jean-Francois Dayen, Nikita Konstantinov, Marlene Palluel, Nathalie Daro, Bohdan Kundys, Mohamed Soliman, Guillaume Chastanet, Bernard Doudin
Summary: Research has shown that using a graphene underlayer to reveal light-induced heating can trigger spin transition in molecules, opening up new possibilities for the potential use of spin crossover materials in room temperature optoelectronic applications.
MATERIALS HORIZONS
(2021)
Article
Engineering, Electrical & Electronic
Ashish Raturi, Poornima Mittal, Sudhanshu Choudhary
Summary: In this study, the electronic and optical properties of metal-doped lithium niobate were analyzed using density functional theory-based calculations, showing that metal dopants can significantly reduce the bandgap and enhance absorption in the visible spectrum, which has potential applications in optoelectronics and photovoltaics.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
M. Rashad, Alaa M. Abd-Elnaiem, T. A. Hanafy, N. M. Shaalan, A. M. A. Shamekh
Summary: This article aimed to develop eco-friendly organic PVA/Al2O3 nanocomposite membranes and evaluate the impact of different levels (1, 2, and 3 wt%) of alumina (Al2O3) nano-filler on their structural and optical properties for photonic applications. The dispersion of Al2O3 nano-filler in PVA matrix was achieved through solvent casting technique. The synthesized PVA/Al2O3 nanocomposite membranes were characterized using FTIR, Raman spectroscopy, and XRD. It was found that the introduction of Al2O3 nano-filler weakened the hydrogen bonding between PVA chains and generated hydrogen bonding with Al2O3, leading to the folding of PVA polymer chains and the formation of new structural defects and impurities, which can be utilized for optoelectronic applications and environmental treatments.
Article
Chemistry, Inorganic & Nuclear
Debasish Panda, Sudhansu Sekhar Hota, R. N. P. Choudhary
Summary: This article presents the synthesis and characterizations of a scheelite strontium molybdate. The study investigates the crystal structure, crystallite size, micro-lattice strain, and material characteristics, while also evaluating its suitability for electronic devices.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
Annumaria Sebastian, R. Gopika, R. Anju, Meenakshi Verma, M. T. Ramesan
Summary: This study focuses on the synthesis, characterization, and properties of in situ polymerized poly (methyl methacrylate) (PMMA) composites with different amounts of polyindole (PIN). The composites were analyzed using various techniques such as FTIR, UV-visible, XRD, FE-SEM, AFM, DSC, and TGA. Mechanical properties and electrical properties of the composites were determined using tensile testing and impedance spectroscopy, respectively. The results showed that the addition of PIN affected the optical, thermal, mechanical, and electrical properties of PMMA. The composites with high tensile strength, conductivity, and dielectric constant have potential applications in optoelectronic devices and EMI shielding.
Article
Engineering, Electrical & Electronic
T. H. AlAbdulaal, V. Ganesh, S. G. S. Al-Amri, H. Y. Zahran, H. Algarni, Ahmad Umar, Hasan B. Albargi, I. S. Yahia, M. A. Ibrahim
Summary: Microwave was used to facilitate the synthesis of pure and tungsten-doped lead iodide nanosheets with thickness less than 100 nm. The synthesized nanosheets were characterized structurally, morphologically, spectrally, optically, dielectrically, and radiationally. SEM and EDX investigations confirmed the influence of tungsten dopants on the undoped PbI2 matrix. XRD patterns showed good crystallinity of the prepared W-doped PbI2 nanostructures. Optical characterizations revealed the energy band structure. The dielectric constant varied with W doping concentrations, indicating an increasing dielectric trend. The prepared W-doped PbI2 nanostructured sheets showed potential applications in radiation detectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Claudia Mezzalira, Fosca Conti, Danilo Pedron, Raffaella Signorini
Summary: Continuous research of materials and processes is crucial for improving optoelectronic devices. This study experimentally evaluates residual stresses on samples simulating the structure of an optoelectronic device, providing an important starting point for future industrial production. The evaluations were conducted on silicon chips soldered onto copper and alumina substrates using different assembly parameters.
APPLIED SCIENCES-BASEL
(2023)
Article
Polymer Science
Kaitai Hu, Qingqing Ye, Yingtao Fan, Junyi Nan, Fangyuan Chen, Yang Gao, Yingzhong Shen
Summary: A novel diamine containing six trifluoromethyl groups was designed and synthesized, leading to the successful preparation of polyimides with excellent comprehensive properties. The two polyimides exhibited good solubility, high heat resistance, low dielectric constant, and high transmittance at 450 nm.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
F. Brahma, Bhagyashree Mohanty, S. Bhattacharjee, R. L. Hota, R. K. Parida, B. N. Parida
Summary: The polycrystalline ceramic SF-BT synthesized through high temperature solid state reaction exhibits multifunctional properties in terms of its structural, dielectric, electrical, and multiferroic characteristics. The material's dielectric properties are suitable for multilayer capacitors, with non-Debye type behavior and resistance mostly contributed by grains. The presence of room temperature ferroelectric and ferromagnetic properties suggest potential applications in microelectric and memory devices with reduced leakage behavior.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Gulzar Ahmad Lone, Mohd Ikram
Summary: This study investigates the structural and dielectric properties of pristine and Ni-doped spinel CoFe2O4. The samples were synthesized using a solid-state reaction approach, and the structural analysis confirmed a single-phase FCC cubic spinel structure. The cationic distribution revealed changes in occupancy due to doping. SEM and EDS were used for microstructural and elemental composition analysis. The study found the presence of orientational and interfacial polarization in the samples. The dielectric constant showed a temperature-dependent behavior, with an increase observed after reaching a certain temperature. CoFe1.9Ni0.9O4 exhibited low dielectric loss and strong relaxation behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yong Guo, Junlang Tan, Jingchang Zhao
Summary: NaF was composited into CCTO with excess Ti to prepare NaF/CCTO composite ceramics, and its physical and chemical properties were characterized. HRTEM revealed particle deposition on CCTO surface. FESEM showed the presence of nanocrystalline structures inside the grains in NaF/CCTO composite ceramics. Dielectric spectroscopy confirmed the significant improvement of CCTO's dielectric properties by NaF and excessive Ti. The dielectric constant of NaF-0.1 sample reached 2.7 x 106 and 5.1 x 105 at 20 Hz and 1 kHz, respectively.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Composites
K. Vyshakh, K. Arun, Rohith Sathian, A. R. Furhan, Meenakshi Verma, M. T. Ramesan
Summary: The properties of PMMA/boehmite nanocomposite films were investigated, including structural, optical, morphological, and thermal properties. The nanocomposites showed effective interaction between PMMA and boehmite nanoparticles, as observed from FT-IR spectra. The addition of boehmite enhanced the crystallinity of PMMA, as indicated by XRD analysis. The composite films exhibited improved mechanical strength, electrical properties, and optical properties, highlighting their potential applications in electromagnetic shielding materials, conducting adhesives, and optoelectronic devices.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Crystallography
K. K. Singha, P. P. Singh, R. Narzary, A. Mondal, M. Gupta, V. G. Sathe, D. Kumar, S. K. Srivastava
Summary: Researchers studied the crystalline structure and optical characteristics of Mg-doped SnO2 compounds for potential use in optoelectronic devices. They found that the compounds had a tetragonal rutile-type structure of SnO2 and successfully integrated Mg ions in SnO2. The optical measurements showed that the band gap widened with increased magnesium doping concentration, and the transmittance value increased from 83% to 91%.
Article
Chemistry, Applied
Leipeng Liu, Kangning Zhang, Jinru Liu, Lei Zhu, Ruiying Xie, Shenghua Lv
Summary: Dielectric elastomers are intelligent materials with potential applications in intelligent robots and bionic materials. Traditional dielectric elastomers require high driving field, which limits their applications. In this study, a new type of polyacrylate elastomer material is designed with enhanced dielectric constant and optimized elastic modulus. The elastomers show a high dielectric constant and large actuation performance.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Materials Science, Multidisciplinary
Yingjian Li, Caiyu Qiu, Huajian Ji, Siyu Duan, Feng Qin, Zeya Li, Peng Chen, Junwei Huang, Geliang Yu, Hongtao Yuan
Summary: By combining microspheres and optical or Raman microscopy, super-resolution imaging beyond the diffraction limit and enhancement of Raman signals can be achieved, providing abundant spectroscopic information on materials. However, microsphere-aided super-resolution scanning photocurrent imaging remains challenging. In this study, a super-resolution photocurrent and spectral microscopy equipped with silica dielectric microspheres is presented, which allows for order of magnitude enhancements in Raman and photoluminescence signals, as well as surpassing the spatial resolutions of the original confocal system.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Xinlei Chen, Shiyi Chen, Xuele Lin, Jingxuan Zhou, Xingjun Gao, Yaoqi Zhen, Xiaodan Ma, Shouwen Jin, Linfang Shi, Hui Liu, Daqi Wang
Summary: Nine mixed-ligand Cd2+ complexes with different geometric structures were synthesized and characterized. The complexes exhibit various coordination modes and form both intra- and intermolecular hydrogen bonds.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Rupali Mahajan, Abhishek Sharma, Bhagyashree Patra, Lijo Mani, Parul Grover, Sandeep Kumar, Santosh Kumar Guru, Gananadhamu Samanthula, Amol G. Dikundwar, Amit Asthana
Summary: This research article provides a comprehensive characterization and toxicological assessment of a photoisomeric impurity of the antianemic drug Roxadustat. The impurity has a distinct structure compared to the drug and its formation due to light exposure is a concern. Through various experiments, including single crystal XRD, physicochemical characterization, and in vitro cytotoxicity assays, the researchers confirmed the structure of the impurity, evaluated its conversion with Roxadustat, and assessed its toxicological activity. These findings contribute to the understanding of drug stability, safety, and formulation development.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Laila S. Alqarni, Azzah M. Alghamdi, Nuha Y. Elamin, A. Rajeh
Summary: The solution casting method was used to produce a new type of nanocomposites made of chitosan, gelatin, and co-doped ZnO nanoparticles. The addition of 3.5% co-doped ZnO nanoparticles improved the physicochemical characteristics and antimicrobial effects of the nanocomposites, indicating their significant potential in food packaging and energy storage.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ruchi Gaur
Summary: The structure and intermolecular interactions of a newly synthesized bis-chalcone THXA were studied using experimental and computational methods. The importance of non-covalent interactions such as pi center dot center dot center dot pi, C-H center dot center dot center dot S, and C-H center dot center dot center dot pi was revealed.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Andrii Bazylevich, Leonid Patsenker, Sarit Aviel-Ronen, Gary Gellerman
Summary: Drug combination therapy is commonly used for treating various skin disorders, but its effectiveness is often limited. In this study, researchers synthesized conjugates of anti-pigmenting drugs and hyaluronic acid (HA) to improve treatment efficacy. These HA-drug conjugates exhibited measurable drug release profiles and demonstrated superior depigmentation effects compared to control groups in a swine model.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Xiaodan Ma, Xinlei Chen, Yaoqi Zhen, Xunjie Zheng, Chengzhe Shi, Shouwen Jin, Bin Liu, Bin Chen, Daqi Wang
Summary: Cocrystallization experiments between minoxidil and aryl acids coformers resulted in the successful formation of multi-component samples. The nature of these samples was determined using various techniques and their structural and supramolecular aspects were investigated. The outcomes revealed the importance of nonbonding contacts and different types of interactions in stabilizing and expanding the crystal structures.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Najla A. Alshaye, Magdy A. Ibrahim, Al-Shimaa Badran
Summary: The chemical behavior of 3-substituted-6,8-dimethylchromones towards phenylhydrazine was examined. Different reaction conditions produced various products, and the molecular geometries and reactivity descriptors of the compounds were also investigated. The results suggest that these compounds are suitable for nonlinear optical applications.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Hayette Alliouche, Houria Bouria, Rafik Bensegueni, Mounia Guergouri, Abdelmalek Bouraiou, Ali Belfaitah
Summary: In this paper, a combined experimental and theoretical study was conducted to synthesize and characterize new 2-quinolone-piperidine and -morpholine hybrids. The results from experiments were validated using computational calculations, and the affinity between these compounds and Acetylcholinesterase/Butyrylcholinesterase was estimated through molecular docking.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Wei-Min Chen, Juan-Juan Shao, Yi Zhang, Zhen-Dong Xue, Peng-Lai Liu, Jian-Ling Ni, Li-Zhuang Chen, Qiang Gao, Fang-Ming Wang
Summary: This study synthesized and characterized a novel Mn-based LMOF, and achieved good results in detecting heavy metal Al3+ in water, showing good stability, high selectivity and sensitivity. This provides new insights into the potential applications of Mn-based MOFs in chemical sensing.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Jun-Xia Li, Yi-Jing Lu, Ke-Ying Quan, Li-Bing Wu, Xun Feng, Wei-Zhou Wang
Summary: This study synthesized two cobalt(II) complexes and analyzed their crystal structures using single-crystal X-ray diffraction. The results showed that the crystal structures of these complexes were different, and they exhibited different crystal packing and magnetic properties.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Yang Li, Yan Zhang, Hong Xu, Min Li, Zhen Li, Zi-yu Song, Ji-shi Chen, Yan-Jun Liu, Yong Sun, Zhao Yang
Summary: This study reports the synthesis and solid-state characterization of a new pharmaceutical cocrystal, PRO-BPE, which can enhance the solubility of the highly water-insoluble prodrug probenecid. The PRO-BPE cocrystals were found to have superior water solubility compared to pure PRO. This research provides valuable insights into improving the solubility of poorly soluble drugs.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Lucas G. B. Felicio, Bianca B. M. Vieira, Ivana S. Lula, Renata Diniz, Frank Alexis, Flavio B. Miguz, Frederico B. De Sousa
Summary: A novel spiropyran derivative was synthesized for heavy metals sensing in water. The results demonstrated that the new derivative can serve as a rapid, sensitive, and simple tool for detecting Hg2+ ions in water with high selectivity.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Junqing Meng, Jie Wang, Lijuan Wang, Chunhui Lyu, Haiyan Chen, Yingpei Lyu, Baisheng Nie
Summary: Material modification with low surface energy can achieve lower surface free energy on micro-and nano-rough structures, which is crucial for developing superhydrophobic surfaces. In this study, attapulgite (APT) was modified with alkylamine, alkylammonium salt, and stearic acid, and the interaction between low surface materials and attapulgite was explained. The results showed that the hydrophobicity of APT was significantly modified by the modifiers, and the surface free energy of the composites first decreased and then increased with increasing molecular number of low surface energy monomers.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Karan Goswami, Dipak Das, Parthasarathi Bera, Sounak Roy, Md. Motin Seikh, Prasanta Kumar Sinha, Arup Gayen
Summary: This work presents the development of a simple and highly active heterogeneous Pd catalyst for Suzuki-Miyaura carbon-carbon cross-coupling reaction. The NiPdFe-1 catalyst shows the best activity and stability among the prepared catalysts. It efficiently promotes the coupling reaction between aryl bromide and phenyl boronic acid under mild reaction conditions with high isolated yields.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ekta Pardhi, Devendra Singh Tomar, Rahul Khemchandani, Gananadhamu Samanthula, Pankaj Kumar Singh, Neelesh Kumar Mehra
Summary: The main aim of this study was to prepare a drug-drug coamorphous system to improve the physiochemical properties, solubility and stability of Apremilast and Indomethacin. Various solid-state characterization techniques were used to characterize the prepared system. Molecular level interactions were studied using molecular modeling and ATR-FTIR and 1H NMR. Solubility and dissolution studies showed the benefits of the coamorphous system. The system was found to be stable for a period of five months. Permeation study also demonstrated improved flux for both drugs compared to their crystalline forms. The coamorphous system showed anti-psoriatic and anti-melanogenic activity based on molecular docking results. Overall, the developed CAM-based supersaturated system exhibited improved physicochemical properties and physical stability.
JOURNAL OF MOLECULAR STRUCTURE
(2024)