Article
Chemistry, Multidisciplinary
Thanh Lam Bui, Ngoc Thanh Ho, Xuan Vuong Thi Thanh Ho, Dinh Nghi Ngo, Soon Hyuk Lim, Sang Jun Son, Seung Man Noh, Sang-Woo Joo
Summary: The optical properties of anisotropic gold nanorod arrays inside anodic aluminum oxide substrates enhance longitudinal absorption intensities and increase hyperthermia cancer cell killing at 42.1 degrees C under photothermal laser exposures at 671 nm.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Ning-Ning Zhang, Zhi-Li Shen, Shu-Yang Gao, Fei Peng, Zi-Jun Cao, Yan Wang, Zizhun Wang, Wei Zhang, Yang Yang, Kun Liu, Tianmeng Sun
Summary: This study reports a seed-mediated strategy for synthesizing chiral-morphology gold nanorods (GNRs) with a novel 222 symmetry. The chiral GNRs with their sides twisted into a double-helical-strip shape are synthesized by the formation of high-Miller-index side surfaces through the regrowth of GNRs. The chiral GNRs exhibit an excellent plasmonic circular dichroism response in the visible and near-infrared regions, which can be tuned by adjusting synthetic parameters. This work holds promise for the fabrication of chiroplasmonic nanoparticles with tailored shapes for chiroptical applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Matej Bubas, Jordi Sancho-Parramon
Summary: The alloying of noble metals is being explored to tune the optical and plasmonic properties of metal nanostructures. Using a low-cost approach based on density functional theory (DFT), deep insights for tailoring noble alloy properties can be gained. The study suggests that the GLLB-SC functional is a better alternative than the commonly used PBE functional for predicting optical properties of alloyed nanoparticles, thin films, and bulk alloys.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Annette Jones, Emily K. Searles, Martin Mayer, Marisa Hoffmann, Niklas Gross, Hyuncheol Oh, Andreas Fery, Stephan Link, Christy F. Landes
Summary: By eliminating contributions from heterogeneous line width broadening and refractive index changes, efficient resonance energy transfer (RET) between AuNRs and PANI is revealed in AuNR-PANI hybrid systems, which dominates the optical response during the dynamic tuning of the spectral overlap.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Marko M. Petric, Malte Kremser, Matteo Barbone, Anna Nolinder, Anna Lyamkina, Andreas Stier, Michael Kaniber, Kai Mueller, Jonathan J. Finley
Summary: The combination of nanoplasmonic systems and optically active two-dimensional materials allows for the exploration and control of light-matter interactions at extreme subwavelength length scales. This study investigates the characteristics of a MoSe2 monolayer on individual gold dipole nanoantennas at room and cryogenic temperatures. The results reveal tuning of the dipolar resonance relative to the exciton and a coupling constant between exciton and plasmon, demonstrating active control of the coupling by varying the excitation light polarization.
Article
Materials Science, Multidisciplinary
Mohammed Alsawafta
Summary: In this study, the optical properties and plasmonic coupling features of a compositionally asymmetric nanorod dimer were investigated using Finite-difference time-domain (FDTD) electromagnetic simulation tool. The results showed both red and blueshift in the longitudinal mode excited in the Ag rod as the two nanorods were longitudinally shifted away from each other. The resonance energy of the Ag rod was observed to have almost no dependency on the gap spacing while the resonance wavelength of the Au rod exhibited a blue shift with increasing gap spacing.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Optics
Hui Zhao, Tao Jiang, Long Yi, Longhua Tang
Summary: Researchers successfully synthesized a variety of new shapes of gold nanocrystals by changing DNA sequences, and found that the plasmonic properties of the nanostructures could be fine-tuned with different DNA combinations, enabling their use in cell Raman imaging. This study expands the possibility of using DNA for the rational design and synthesis of nanostructures with desired morphologies and functions.
Article
Chemistry, Physical
Jin-yuan Li, Jian Zhu, Xin Li, Guo-jun Weng, Jian-jun Li, Jun-wu Zhao
Summary: Due to their strong electromagnetic field and tunable surface plasmon resonance bands, gold triangular nanoprisms can be applied in various fields. Polymetallic nanomaterials, composed of multiple metals, possess unique optical properties. This study focused on the synthesis and control of Pt-Au triangular nanoprisms for applications in catalysis and surface-enhanced Raman scattering.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Spela Slapnicar, Gregor Zerjav, Janez Zavasnik, Matjaz Finsgar, Albin Pintar
Summary: This study investigated the plasmonic Au (1 wt%) catalysts on hydrothermally synthesized TiO2 nanorods. Different sizes of Au nanoparticles (Au NPs) on Au/TiO2 catalysts were obtained by adjusting the mixing duration and calcination parameters. The presence of localized surface plasmon resonance effect was observed in all UV-Vis diffuse reflectance spectra of the catalysts, regardless of the size of Au particles. The study also identified superoxide anion radicals (O2 & BULL;-) as the main reactive oxygen species responsible for the oxidation of bisphenol A (BPA) under visible-light illumination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Lulu Ye, Gehui Zhang, Yuan Gao, Yugang Wang, Qihuang Gong, Guowei Lu
Summary: Interface properties can significantly affect the relaxation process of noble metal nanostructures' local surface plasmon, which in turn modulates their scattering spectral characteristics, hot carrier generation, and optical sensing performance. In this study, the plasmon damping of individual gold nanorods on an ion-irradiated quartz substrate was investigated. The results showed that when the nanorods were moved onto the irradiated region, the plasmonic resonant peaks red-shifted, the linewidths broadened, and the scattering intensities weakened. The change rate of the plasmonic resonant peak was found to be more sensitive to the separation distance compared to the change rate of the scattering linewidth and intensity. This study contributes to a better understanding of the relationship between substrate surface and plasmon damping, which is important for the development of optoelectronic devices based on localized surface plasmon.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
William H. Hoffmann, Bo Gao, Niall M. C. Mulkerns, Alexander G. Hinton, Simon Hanna, Simon R. Hall, Henkjan Gersen
Summary: This study presents an extension of Nanoparticle Tracking Analysis that allows for the determination of nanorod dimensions and aggregation state. The results are compared with transmission electron microscopy and show the accuracy and reliability of this technique for characterizing nanorods.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Mario Pelaez-Fernandez, Bruno Majerus, Daniel Funes-Hernando, Romain Dufour, Jean-Luc Duvail, Luc Henrard, Raul Arenal
Summary: High aspect-ratio gold nanostructures exhibit Fabry-Perot-like surface plasmon responses from infrared to visible light energies and can be tuned by laser irradiation. The plasmonic behavior of these nanostructures has been characterized using advanced analysis techniques, demonstrating the selective tuning of plasmonic modes within a specific spectral range.
Article
Chemistry, Multidisciplinary
Youngkyu Hwang, Dong Jun Koo, Abdul Rahim Ferhan, Tun Naw Sut, Bo Kyeong Yoon, Nam-Joon Cho, Joshua A. Jackman
Summary: Gold nanorods are used for constructing surface-based nanoplasmonic biosensing platforms. Controlling the concentration of APTES during surface preparation affects density and sensitivity of the biosensing platform.
Article
Materials Science, Multidisciplinary
Dai Zhang, Ying Du, Cheng Yang, Pan Zeng, Yan Yu, Yujun Xie, Rongqing Liang, Qiongrong Ou, Shuyu Zhang
Summary: The study successfully synthesized gold nanoparticles/reduced graphene oxide/gold plasmonic nano-sandwiches using a UV/ozone-assisted approach with easy and fine tunability. By varying the functionalization time, high loading density of gold nanoparticles was achieved, leading to potential applications in surface-enhanced Raman spectroscopy.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shang-Yang Yu, Chang-Hsuan Tu, Jiunn-Woei Liaw, Mao-Kuen Kuo
Summary: In this work, the generation of initiated plasmonic nanobubbles and subsequent microbubbles in gold nanorod (GNR) colloidal solution induced by a pulsed laser is studied. The surface plasmon resonance (SPR)-enhanced photothermal effect of GNRs initiates nanobubbles, which then trigger the optical breakdown of water. The dynamic formations of nanobubbles and microbubbles in GNR colloids are investigated using probing He-Ne laser and ultrasonic transducer. Three types of microbubbles are identified based on optical and photoacoustic signals. The thresholds of pulsed energy to induce different types of microbubbles are reduced as the concentration of GNRs increases, especially in the near-infrared (NIR) region and close to the SPR of GNRs. This study provides insights into the relationship between plasmonic nanobubbles and triggered microbubbles.
Article
Chemistry, Multidisciplinary
Roger M. Pallares, Marimikel Charrier, Sara Tejedor-Sanz, Dong Li, Paul D. Ashby, Caroline M. Ajo-Franklin, Corie Y. Ralston, Rebecca J. Abergel
Summary: Rare-earth elements are essential for clean energy technologies, but their supply chain is at high risk of disruption. This study presents a synthetic biogenic material that mimics natural processes to extract lanthanides. The material demonstrates high affinity and selectivity for lanthanides, and the functionalized protein layers can be reused. These findings highlight the potential of biogenic materials in recovering critical elements from waste.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
Roger M. Pallares, Dahlia D. An, Solene Hebert, David Faulkner, Alex Loguinov, Michael Proctor, Jonathan A. Villalobos, Kathleen A. Bjornstad, Chris J. Rosen, Christopher Vulpe, Rebecca J. Abergel
Summary: In this study, the toxicological interactions of gadolinium with Saccharomyces cerevisiae were assessed using functional toxicogenomics. The researchers identified biological functions and pathways disturbed by the metal, such as endocytosis and vesicle-mediated transport. They also found that certain metabolic processes were disrupted by gadolinium treatments. Proteins involved in vesicle-mediated transport and metabolic processes were identified as key components in reducing the metal toxicity. Many of the genes and proteins associated with gadolinium toxicity are conserved in humans, indicating their potential role in diseases related to gadolinium-based contrast agent exposures.
Article
Medicine, Research & Experimental
Roman A. Barmin, Anshuman Dasgupta, Celine Bastard, Laura De Laporte, Stephan Ruetten, Marek Weiler, Fabian Kiessling, Twan Lammers, Roger M. Pallares
Summary: Gas-filled microbubbles (MB) are used as ultrasound contrast agents and drug delivery vehicles. The properties of MB can be improved by changing the characteristics of surfactants used in their synthesis. It was found that higher-molecular-weight surfactants can increase the shell thickness of MB, leading to higher drug loading capacity and acoustic stability. Additionally, the presence of smaller polymer chains in Triton X-based MB improves drug loading capacity and ultrasound contrast response compared to Tween-based MB.
MOLECULAR PHARMACEUTICS
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Roger M. Pallares, Felix M. Mottaghy, Volkmar Schulz, Fabian Kiessling, Twan Lammers
Summary: This article provides an overview of currently used and evaluated nanoparticle-based imaging agents in the clinic and discusses preclinical progress and translational avenues for the use of nanoparticles in diagnostic and theranostic applications.
JOURNAL OF NUCLEAR MEDICINE
(2022)
Article
Chemistry, Physical
Rui Zhang, Fabian Kiessling, Twan Lammers, Roger M. Pallares
Summary: Gold nanostars (AuNSs) were synthesized using a simplified one-pot protocol with biocompatible reducing and stabilizing agents. A fractional factorial design of experiments revealed that five factors, including HEPES concentration, Au3+ concentration, temperature, pH, and stirring, controlled the growth, morphology, and optical properties of AuNSs. Additionally, secondary interaction effects between temperature-Au3+ concentration and pH-HEPES concentration were identified, showing larger effects when both factors were changed simultaneously. These findings provide new insights into the synthesis of AuNSs and highlight the importance of characterizing secondary interaction effects for optimizing the properties of gold nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Biomaterials
Roman A. Barmin, Anshuman Dasgupta, Anne Rix, Marek Weiler, Lia Appold, Stephan Rutten, Frederic Padilla, Alexander J. C. Kuehne, Andrij Pich, Laura De Laporte, Fabian Kiessling, Roger M. Pallares, Twan Lammers
Summary: By investigating the effects of bioconjugation chemistry on the acoustic properties of polymeric microbubbles (MB), we found that functionalized MB display higher acoustic stability, stronger stable cavitation, and enhanced second harmonic generation, while preserving the binding capabilities of streptavidin conjugated on their surface. These findings are important for improving the performance of polymer-based ultrasound imaging and theranostic agents.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Instruments & Instrumentation
Rui Zhang, Fabian Kiessling, Twan Lammers, Roger M. Pallares
Summary: Gold nanoparticles with unique physicochemical features are being investigated for therapeutic purposes. After two decades of preclinical progress, gold nanoconstructs are transitioning into clinical trials. The current consensus is to focus on specific disorders for therapeutic applications.
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Roger M. Pallares, Dahlia D. An, Solene Hebert, Alex Loguinov, Michael Proctor, Jonathan A. Villalobos, Kathleen A. Bjornstad, Chris J. Rosen, Chris D. Vulpe, Rebecca J. Abergel
Summary: This study extensively characterizes the toxicity mechanisms of early lanthanides, lanthanum and praseodymium, through a multidimensional genome-wide toxicogenomic study using Saccharomyces cerevisiae as a model system. The findings identify key genes and proteins involved in the response to lanthanide-induced toxicity and suggest potential strategies for prophylaxis and therapeutics.
Review
Medicine, General & Internal
Roger M. Pallares, Rebecca J. Abergel
Summary: This review discusses the latest developments in radiopharmaceuticals for targeted alpha therapy, including their key structural components and pros and cons. It also addresses current limitations and ongoing strategies in the field, and critically analyzes potential opportunities for targeted alpha therapy to become a gold standard treatment in oncology.
FRONTIERS IN MEDICINE
(2022)
Editorial Material
Biotechnology & Applied Microbiology
Roger M. Pallares, Fabian Kiessling, Twan Lammers
Article
Multidisciplinary Sciences
Anshuman Dasgupta, Tao Sun, Roberto Palomba, Elena Rama, Yongzhi Zhang, Chanikarn Power, Diana Moeckel, Mengjiao Liu, Apoorva Sarode, Marek Weiler, Alessandro Motta, Celine Porte, Zuzanna Magnuska, Asmaa Said Elshafei, Roman Barmin, Adam Graham, Arthur McClelland, Dirk Rommel, Elmar Stickeler, Fabian Kiessling, Roger M. Pallares, Laura De Laporte, Paolo Decuzzi, Nathan McDannold, Samir Mitragotri, Twan Lammers
Summary: Surface tension allows microbubbles (MB) to have a perfect spherical shape. By stretching spherical poly(butyl cyanoacrylate) MB above their glass transition temperature, anisotropic MB can be generated, giving them unique features for biomedical applications. Compared to spherical MB, nonspherical polymeric MB exhibited superior performance including increased margination behavior, reduced macrophage uptake, prolonged circulation time, and enhanced blood-brain barrier permeation when combined with transcranial focused ultrasound (FUS). The study identifies shape as a design parameter in the MB landscape and provides a rational and robust framework for exploring the application of anisotropic MB in ultrasound-enhanced drug delivery and imaging applications.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Nanoscience & Nanotechnology
Roger M. Pallares, Sarah L. Karstens, Trevor Arino, Andrew M. Minor, Rebecca J. Abergel
Summary: In this study, a modified simultaneous growth and self-aggregation method was used to produce ceria and silver Janus nanoparticles for the conversion of 4-nitrophenol. By controlling the growth conditions, the interface between ceria and silver was manipulated, resulting in increased exposure to reactants and improved reaction rate constants. These findings provide design rules for better performing hybrid nanocatalysts.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Roman A. Barmin, Mirjavad Moosavifar, Anshuman Dasgupta, Andreas Herrmann, Fabian Kiessling, Roger M. Pallares, Twan Lammers
Summary: Ultrasound (US) is widely used for diagnostic imaging and treatment, and polymeric materials with cavitation nuclei properties can enhance US imaging and promote local drug delivery. This review discusses engineered polymeric materials, such as microbubbles and gas-releasing nanoparticles, that respond to US and their formulation aspects. It focuses on microbubbles and explores the chemical toolbox to enhance their performance in US imaging and drug delivery. The review also summarizes the emerging applications of polymeric microbubbles in molecular imaging, sonopermeation, and gas and drug delivery, highlighting their potential in US imaging and therapy.
Article
Chemistry, Multidisciplinary
Roger M. Pallares, Matthew Flick, Katherine M. Shield, Tyler A. Bailey, Nileena Velappan, Antonietta M. Lillo, Rebecca J. Abergel
Summary: Targeted alpha therapy offers unique opportunities for the treatment of tumors and infections. In this study, a new radioimmunoconjugate construct has been developed to target SARS-CoV-2 infected cells. The construct selectively binds to the ACE2-receptor binding domain of the spike protein, preventing its binding to the receptor. Radiolabeling the antibody with Ac-225 has demonstrated therapeutic effectiveness against cells mimicking SARS-CoV-2 infection in vitro.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Quim Pena, Alec Wang, Orysia Zaremba, Yang Shi, Hans W. Scheeren, Josbert M. Metselaar, Fabian Kiessling, Roger M. Pallares, Stefan Wuttke, Twan Lammers
Summary: Metal complexes are widely used in cancer therapy and nanomedicine has emerged as a powerful tool to enhance their efficacy and reduce toxicity. This critical review discusses the opportunities and challenges of metallodrugs and analyzes the advantages and limitations of their delivery using nanocarriers and metal-nano interactions. The rational combination of coordination chemistry and nanomedicine technology can promote the clinical translation of metallodrugs.
CHEMICAL SOCIETY REVIEWS
(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)
