Article
Chemistry, Analytical
Hideo Utsumi, Toshiki Masumizu, Ryoma Kobayashi, Tomoko Tahira, Fuminori Hyodo, Tatsuya Shimizu, Tatsuya Naganuma, Kazunori Anzai
Summary: Free radicals are key substances in organisms but can also cause oxidative diseases. Dynamic nuclear polarization- magnetic resonance imaging is a noninvasive imaging method that can be used for in vivo free radical imaging.
ANALYTICAL CHEMISTRY
(2021)
Article
Physics, Applied
T. D. Gustafson, N. C. Giles, B. C. Holloway, C. A. Lenyk, J. Jesenovec, J. S. McCloy, M. D. McCluskey, L. E. Halliburton
Summary: In this study, electron paramagnetic resonance (EPR) and optical absorption were used to characterize Cu2+ and Cu3+ ions in Cu-doped beta-Ga2O3. Different EPR spectra and optical absorption bands were observed for Cu2+ and Cu3+ ions. The results showed that Cu2+(A) ions occupy defect-free octahedral Ga sites, while Cu2+(B) ions have adjacent defects, possibly OH- ions, oxygen vacancies, or H- ions trapped within oxygen vacancies. Additionally, exposure of the crystals to 275 nm light at room temperature produced Cu3+ ions and reduced the number of Cu2+(A) and Cu2+(B) ions. Thermal annealing studies showed that Cu3+ ions decay, and Cu2+ ions recover.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Toshinobu Nakajo, Jun Kumagai, Shinpei Kusaka, Akihiro Hori, Yuh Hijikata, Jenny Pirillo, Yunsheng Ma, Ryotaro Matsuda
Summary: Triplet carbenes (TCs) are highly reactive species with unique electronic states, making it challenging to balance reactivity and stability. By confining TCs in the nanospace of a metal-organic framework (MOF), it is possible to enhance their thermal stability while maintaining reactivity, allowing for the stabilization of highly reactive species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Ameen Uddin Ammar, Ipek Deniz Yildirim, Mohamad Hasan Aleinawi, Merve Buldu-Akturk, Nur Selin Turhan, Shankari Nadupalli, Arpad Mihai Rostas, Emre Erdem
Summary: The doping of Mn, Fe, and Cu ions into ZnO nanocrystals adds magnetic phenomena to their semiconducting property. However, there is a lack of research on the local lattice structure, spin-exchange phenomena, and interaction between defects and doped metal ions in TM ion-doped ZnO. This study uses multi-frequency (EPR) techniques to investigate ZnO:TM, revealing the localization of the dopant ion, site symmetry, and the formation of intrinsic-extrinsic defect complexes. The incorporation of TM ions modifies the intrinsic defect structure of ZnO nanocrystals, with the appearance of peculiar spin-exchange phenomena from intrinsic-extrinsic defect complexes, and charge selective substitutions in the matrix are observed for Cu2+ compared to Mn2+ and Fe3+.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Medicinal
Zsolt Preisz, Nora Hartvig, Balazs Bognar, Tamas Kalai, Sandor Kunsagi-Mate
Summary: The scavenging effects of trans-phototrexate (trans-PHX) were found to be the most pronounced, with cis-PHX also showing greater scavenging effects than MTX at a low concentration. Both isomers of PHX exhibited higher antioxidant capacity compared to MTX.
Article
Pharmacology & Pharmacy
Lais Alonso, Sebastiao Antonio Mendanha, Rodrigo Saar Gomes, Miriam Leandro Dorta, Antonio Alonso
Summary: The study using EPR spectroscopy investigated the interactions of AmB and MIL with cell membranes of various cells, revealing higher affinity of AmB for Leishmania parasites and a more localized effect on the membrane. This suggests that the antiproliferative and cytotoxic effects of these drugs are associated with changes in cell membranes.
EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2021)
Article
Chemistry, Physical
Constantinos Moularas, Pavlos Psathas, Yiannis Deligiannakis
Summary: The study utilizes electron paramagnetic resonance to distinguish the characteristics of photo-generated carriers in 14 nm and 26 nm NaTaO3 particles. The 14 nm particles exhibit higher photoinduced carrier yield, while the 26 nm particles show lower photoinduced carrier yield.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Medicinal
Riccardo Carloni, Natalia Sanz del Olmo, Barbara Canonico, Mariele Montanari, Caterina Ciacci, Gianluca Ambrosi, F. Javier de la Mata, Maria Francesca Ottaviani, Sandra Garcia-Gallego
Summary: The study revealed the significant impact of meta-position iminopyridine substituents on the antitumor activity of carbosilane metallodendrimers. New Cu(II) carbosilane metallodendrimers with methyl or methoxy substituents demonstrated low micromolar IC50 values in tumor cell lines, and in vitro assays indicated improved cytotoxicity and selectivity. The most promising candidates exhibited a substantial increase in antitumor activity in U937 tumor cells, possibly through different ROS-production pathways.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Juvinch R. Vicente, Amanda Durkin, Kristina Shrestha, Mihaela Balu
Summary: Melanin plays a significant role in skin homeostasis and protection. The two-photon excited fluorescence lifetime detection method allows for selective and quantitative measurement of melanin. Previous studies lacked consideration of skin heterogeneity due to limited field of view. In this work, a fast large-area multiphoton exoscope was used to evaluate the 3D distribution of epidermal melanin content, improving measurement reliability.
SCIENTIFIC REPORTS
(2022)
Article
Construction & Building Technology
Cyriaque Rodrigue Kaze, Gisele Laure Lecomte-Nana, Elie Kamseu, Paula Sanz Camacho, Antonia S. Yorkshire, John L. Provis, Mathieu Duttine, Alain Wattiaux, Uphie Chinje Melo
Summary: In this study, the performance of synthesizing inorganic polymer products using two different laterites with varying iron content under alkaline and acidic conditions was investigated. Results showed that under acidic conditions, higher iron content laterite exhibited higher compressive strength and denser structure.
CEMENT AND CONCRETE RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Anthony J. Campanella, Manh-Thuong Nguyen, Jun Zhang, Thacien Ngendahimana, William E. Antholine, Gareth R. Eaton, Sandra S. Eaton, Vassiliki-Alexandra Glezakou, Joseph M. Zadrozny
Summary: This work investigates how variations in ligand structures affect the EPR spectroscopic properties of five Cr(III) complexes, indicating that the spectral broadening is correlated to rigidity in the inner coordination sphere and reflected in ligand-dependent distribution of Cr-N bond distances.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Multidisciplinary
E. Aboelezz, C. De Angelis, P. Fattibene
Summary: The Nano-BaSO4 dosimeter shows a linear response to dose and low fading, making it a potential electron paramagnetic resonance (EPR) dosimeter for ionizing radiation. This study addresses the lack of research on nano-BaSO4 response to radiation quality, finding that the signal line shape and dose response linearity remain unaffected by different types of radiation. Energy dependence was evaluated in terms of dose to water, with electrons having a value of about 0.70, protons 0.6, 6 MV photons close to 1, and 15 MV photons 0.87 when normalized to Cs-137 energy.
Article
Plant Sciences
Dragica M. Milosavljevic, Vuk M. Maksimovic, Jasminka M. Milivojevic, Dura J. Nakarada, Milos D. Mojovic, Jelena J. Dragisic J. Maksimovic
Summary: This study profiled the phenolic compounds of 25 newly introduced strawberry cultivars and evaluated their potential health benefits. The results identified cultivars with high levels of phenolic compounds and other bioactive parameters, which could be recommended as functional fruit foods for consumers.
Article
Chemistry, Multidisciplinary
Santina S. Cruz, Vadim Tanygin, Benjamin J. Lear
Summary: Using electron spin resonance spectroscopy, it has been demonstrated that morphological asymmetries in small spheroidal metallic nanoparticles significantly affect the electronic behavior of states near the metal's Fermi energy. The study found that morphological effects were more important than size distributions in explaining the asymmetry in electronic behavior, and this was consistent across various particles made from different metals. Additionally, the study also showed that morphological changes can tune the electronic properties of even small particles, as evidenced by the modeling used to explain asymmetries in both electron spin resonance spectra and plasmon spectra.
Article
Chemistry, Applied
Xianwen Zhang, Zheng Li, Bin Zeng, Can Li, Hongxian Han
Summary: This work investigates the light-induced charge separation and the effect of O2 on electron transfer processes in SrTiO3. It was found that under vacuum condition, photoinduced electron transfer from O2- to Ti4+ produced Ti3+ and O- redox radical pairs. Under oxygen atmosphere, however, surface bound superoxide radicals O2 were formed by electron reduction of adsorbed oxygen at initial photoirradiation stage, and quenched by the reverse electron transfer to Ti4+ upon further photoirradiation.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Aaron M. Ross, Silvio Osella, Veronica R. Policht, Meng Zheng, Michele Maggini, Fabio Marangi, Giulio Cerullo, Teresa Gatti, Francesco Scotognella
Summary: This article investigates the optical properties of a cross-linked graphene-dye nanohybrid material through experimental and theoretical research. The experimental results show that the material exhibits ultrafast photoinduced charge transfer characteristics. Theoretical calculations indicate that the photoinduced charge transfer process occurs through a superexchange mechanism.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Physics, Applied
Francesco Tampieri, Ariadna G. Araguz, Cristina Canal
Summary: This study assessed the feasibility of non-thermal plasma (NTP) as a standalone method for tattoo removal. The results showed significant differences in residual color and temperature effect between water and a skin model after plasma treatment. Based on kinetic considerations and extrapolation of the results, it was concluded that NTP cannot compete with current laser technology in a real application.
PLASMA PROCESSES AND POLYMERS
(2022)
Correction
Chemistry, Physical
Susanna Ciuti, Jacopo Toninato, Antonio Barbon, Niloofar Zarrabi, Prashanth K. K. Poddutoori, Art Van der Est, Marilena Di Valentin
Summary: In this study, the correction for solvent-dependent triplet state delocalization in a co-facial porphyrin heterodimer is presented. It is experimentally demonstrated that solvent properties can significantly influence the electronic transfer behavior of conjugated systems and affect their optical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Napatsakorn Kamkrua, Thitaphat Ngernsutivorakul, Saksorn Limwichean, Pitak Eiamchai, Chanonthorn Chananonnawathorn, Viyapol Pattanasetthakul, Raffaele Ricco, Kiattawee Choowongkomon, Mati Horprathum, Noppadon Nuntawong, Tanujjal Bora, Raju Botta
Summary: In this study, a SERS-based aptasensor platform was developed for the sensitive and selective detection of the herbicide paraquat (PQ) by modifying gold (Au) nanoparticle SERS substrates with a thiol-containing aptamer. The aptamer-modified SERS substrates showed improved sensitivity and selective detection of PQ, with a limit of detection estimated to be 0.10 ± 0.03 μM. The developed aptasensor platform demonstrated good stability and selectivity against interferences from other similar herbicides and insecticides in natural water samples.
ACS APPLIED NANO MATERIALS
(2023)
Article
Physics, Applied
Francesco Tampieri, Yury Gorbanev, Eloisa Sardella
Summary: Fundamental and applied research on plasma-treated liquids for biomedical applications has seen progress in recent years due to their advantages over direct treatments. However, the lack of consistent analysis at a molecular level and in the production processes has raised doubts about their usefulness in clinical settings. This article critically discusses the use of plasma-treated liquids in medicine, focusing on their chemical composition. We analyze the main liquids used in the field, their interactions with non-thermal plasmas, and the potential for replication without plasma treatment.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Chemistry, Physical
Ryhor Fedaruk, Roman Strzelczyk, Grigory A. Rusetsky, Antonio Barbon, Lukasz Majchrzycki, Maria A. Augustyniak-Jablokow
Summary: Glass-like carbons (GLCs) are disordered carbon materials with high concentration of paramagnetic centers (PCs). The origin and identification of these PCs have remained unknown due to the complex electron paramagnetic resonance (EPR) spectrum caused by high electrical conductivity. In this study, vacuum Rabi splitting and Rabi oscillations were used to investigate GLC produced by pyrolysis of phenol-formaldehyde resin. The results revealed the spin concentration, the temperature dependence of EPR susceptibility, and the presence of excited triplet states.
Article
Chemistry, Physical
Lorenzo Franco, Abdirisak Ahmed Isse, Antonio Barbon, Lina Altomare, Viivi Hypponen, Jessica Rosa, Venla Olsson, Mikko Kettunen, Lucio Melone
Summary: This paper presents the synthesis, characterization, and in vivo application of water-soluble supramolecular contrast agents for MRI. The contrast agents were obtained from β-cyclodextrin functionalized with different nitroxide radicals. The experiments showed that the contrast agents had improved stability in vitro and in vivo, and were non-cytotoxic at low concentrations. The MRI experiments on glioma-bearing rats demonstrated a good lowering of T-1 relaxation in the tumor, indicating the potential of these contrast agents for improved tumor imaging.
Article
Chemistry, Organic
Francesca Arcudi, Andrea Sartorel, Anna Fortunato, Tomas Marangoni, Nicola Demitri, Michele Maggini, Luka Dordevic
Summary: A new triflatophenylporphyrin building block for Pd-catalyzed cross-coupling reactions is proposed. Compared to halophenylporphyrins, its purification is much easier. The triflatophenylporphyrin is also suitable in microwave-assisted Sonogashira cross-coupling and has been used to prepare a donor-acceptor array.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Laura Morbiato, Celeste Quaggia, Luca Menilli, Chiara Dalla Torre, Antonio Barbon, Marta De Zotti
Summary: Peptaibols are proteolysis-resistant, membrane-active peptides with stable helical 3D structures. Medium-length peptaibols are of interest for studying peptide-membrane interaction. Electron paramagnetic resonance (EPR) is used for this purpose, but it requires synthesis of spin-labeled medium-length peptaibols.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemical Research Methods
Angelo Carella, Susanna Ciuti, Haakon T. A. Wiedemann, Christopher W. M. Kay, Arthur van der Est, Donatella Carbonera, Antonio Barbon, Prashanth K. Poddutoori, Marilena Di Valentin
Summary: In this study, the photoexcited triplet state of octaethylaluminum(III)-porphyrin (AlOEP) was investigated using various techniques. The results show that the magnetic resonance properties of AlOEP are influenced by the presence of a dynamic process, resulting in temperature-dependent zero-field splitting parameters and hyperfine coupling tensor components. These findings contribute to a better understanding of AlOEP and its potential applications.
JOURNAL OF MAGNETIC RESONANCE
(2023)
Editorial Material
Physics, Applied
Cristina Canal, Albert Espona Noguera, Francesco Tampieri
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Susanna Ciuti, Angelo Carella, Andrea Lucotti, Matteo Tommasini, Antonio Barbon, Marilena Di Valentin
Summary: The phototautomerism of free-base 5, 10, 15, 20-tetrakis(4-sulfonatophenyl) porphyrin (H2TPPS4-) in excited states was investigated using advanced Electron Paramagnetic Resonance (EPR) combined with fluorescence and Raman spectroscopy. Triplet EPR spectroscopy confirmed the occurrence of phototautomerization and the formation of the cis tautomer as a minor component. The results suggest a slow process in the triplet state and a model involving spin-vibronic coupling mechanism for intersystem crossing.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2023)
Article
Materials Science, Biomaterials
Francesco Tampieri, Albert Espona-Noguera, Cedric Labay, Maria-Pau Ginebra, Maksudbek Yusupov, Annemie Bogaerts, Cristina Canal
Summary: Non-thermal plasma has been extensively studied for biomedical applications, including tissue decontamination, regeneration, skin treatment, and tumor therapies. Plasma treatment of biopolymer solutions can enhance the generation of reactive oxygen and nitrogen species, making them ideal for indirect treatments of biological targets. The effects of plasma treatment on alginate solutions and the mechanisms responsible for enhanced reactive species generation were investigated using size exclusion chromatography, rheology, scanning electron microscopy, chromatography coupled with mass spectrometry, and molecular dynamics simulations. The active role of biopolymer chemistry during plasma treatment was highlighted, demonstrating its potential for targeted therapies using biocompatible hydrogels as vehicles for storing and delivering reactive species.
BIOMATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Susanna Ciuti, Jacopo Toninato, Antonio Barbon, Niloofar Zarrabi, Prashanth K. Poddutoori, Art van der Est, Marilena Di Valentin
Summary: The excited triplet state of a cofacial aluminum(iii) porphyrin-phosphorus(v) porphyrin heterodimer was investigated using transient EPR spectroscopy and quantum chemical calculations. The results indicate that the triplet state wavefunction is delocalized over both porphyrins and has a modest degree of charge-transfer character.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Antonio Barbon, Abdirisak Ahmed Isse, Armando Gennaro, Raanan Carmieli, Itzhak Bilkis, Lev Weiner
Summary: The oxoammonium cation (OAC) of 3-carboxy proxyl, a nitroxide radical (NitR), can be generated through chemical or electrochemical oxidation. In dilute aqueous basic solutions, OAC can be quantitatively reduced to the original radical, accompanied by the formation of molecular oxygen. This redox cycle has a low electrolysis potential, contrasting with the high redox potential of the bare OH- anion. OAC/NitR may represent a new class of redox mediators for low potential water oxidation.
MATERIALS ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
