bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Midas Touch by Internal Stimuli: Activatable Luminogens with Near‐Infrared Aggregation‐Induced Emission for Potent Bioimaging and Theranostics
Authors: Gao Yiting , Yan Dingyuan , Yang Xinyue , Huang Weigeng , Sun Yan , Zhu Dongxia , Liu Qian , Shan Guogang , Wang Dong , Tang Ben Zhong 
Published: September 2024

AbstractAs a modality of optical imaging, fluorescence imaging of biochemical analytes holds significant potential in the field of disease diagnosis and therapy. However, the non‐responsive fluorophores are not able to selectively and sensitively detect lesions, resulting in a poor signal‐to‐background ratio and compromised accuracy. The utilization of activatable sensors, in contrast, is capable of effectively overcoming these limitations by displaying variations in fluorescence intensity and spectral wavelength in response to physiological parameters. Aggregation‐induced emission luminogens (AIEgens), particularly those emitting fluorescence in the near‐infrared (NIR, 700–1700 nm) window, have practical application prospects in disease theranostics due to their excellent photostability, deeper penetration depth, and enhanced fluorescence intensity in physiological environments. In this review, an overview of the advancements in research on NIR AIEgens for internal stimuli‐activated diagnosis and treatment of diseases is provided. The design principles of responsive NIR AIEgens and their biomedical applications are exemplified with representative examples, categorized based on the type of stimuli. Finally, the review concludes with a brief discussion of the challenges, opportunities, and future prospects of activatable NIR AIEgens in the field of disease photo theranostics.
Ultrahigh Thermal Robustness of High‐Entropy Spectrally Selective Absorbers for Next‐Generation Concentrated Solar Power System
Authors: Zhao Peng , Dong Meng , Liu Xi , Wang Yun‐Feng , Wang Wei‐Ming , Liu Bao‐Hua , Lu Zhong‐Wei , He Cheng‐Yu , Gao Xiang‐Hu 
Published: September 2024

AbstractSpectrally selective absorbers (SSAs) are a critical component in concentrated solar power (CSP) systems, as they maximize sunlight absorption while suppressing heat radiative loss. Despite various SSAs being demonstrated, the challenges remain on the limitations of thermal instability at elevated operating temperatures especially above 650 °C due to component oxidation and diffusion in the absorption layer. To address these challenges, herein a high‐entropy strategy is resorted. By utilizing high‐entropy nitride film as an absorption layer, a double‐layer SSA is prepared by a facile magnetron sputtering method. High‐entropy engineering intensifies and complicates the localized electronic bands, concurrently exhibiting relatively flat bands around the Fermi level, which can significantly enhance 3d interband transition. The resultant SSA delivers the desired spectral selectivity (α/ɛ82 °C = 92.7%/8.4%). Benefitting from the high‐entropy effect, the SSA maintains outstanding optical properties (α/ɛ82 °C = 93.3%/9.4%) even after a 750 °C vacuum thermal treatment for 120 h. Under 1 kW m−2 simulated illumination, the surface temperature of the absorber can easily rise to 95.3 °C, suggesting its remarkable solar‐thermal performance. Furthermore, its effectiveness in parabolic trough collectors (PTCs) is validated. All these competitive performances make the high‐entropy SSA a potentially promising candidate for PTCs.
Advanced Organic–Inorganic Hybrid Materials for Optoelectronic Applications
Authors: Zhou Kun , Qi Bingyu , Liu Zhongwei , Wang Xinjiang , Sun Yuanhui , Zhang Lijun 
Published: September 2024

AbstractResearch on organic–inorganic hybrid materials (OIHMs) has experienced explosive growth in the past decades. The diversity of organic components allows for the introduction of various spatial scales, functional groups, and polarities, while inorganic components provide higher hardness, heat resistance, and stability, their flexible combination facilitates the formation of diverse structures. Furthermore, simple and cost‐effective synthesis methods, such as room temperature solution processes and mechanochemical techniques, enable precise control over the materials' properties at different scales, thus achieving adjustable structure–performance relationships. This review will discuss the recent research progress of OIHMs within the field of optoelectronics and related optoelectronic device applications. According to the dimension of inorganic components and the nature of organic–inorganic interface, this review divides OIHMs into four structural categories. The ongoing research has revealed diverse applications for OIHMs in the fields of solar cells, light‐emitting devices, detectors, and memristors. As an outlook, the potential of perovskite and 0D metal halide materials, which are currently the most studied, for enhancing optoelectronic performance and stability is discussed.
Nitrogen‐Containing Surface Ligands Lead to False Positives for Photofixation of N2 on Metal Oxide Nanocrystals: An Experimental and Theoretical Study
Authors: Maldonado‐Lopez Daniel , Huang Po‐Wei , Sanchez‐Lievanos Karla R. , Jana Gourhari , Mendoza‐Cortes Jose L. , Knowles Kathryn E. , Hatzell Marta C. 
Published: September 2024

AbstractMany ligands commonly used to prepare nanoparticle catalysts with precise nanoscale features contain nitrogen (e.g., oleylamine); here, it is found that the use of nitrogen‐containing ligands during the synthesis of metal oxide nanoparticle catalysts substantially impacts product analysis during photocatalytic studies. These experimental results are confirmed via hybrid Density Functional Theory (DFT) computations of the materials’ electronic properties to evaluate their viability as photocatalysts for nitrogen reduction. This nitrogen ligand contamination, and subsequent interference in photocatalytic studies is avoidable through the careful design of synthetic pathways that exclude nitrogen‐containing constituents. This result highlights the urgent need for careful evaluation of catalyst synthesis protocols, as contamination by nitrogen‐containing ligands may go unnoticed since the presence of nitrogen is often not detected or probed.
Synthesis, Structural Analysis, and Degradation Behavior of Potassium Tin Chloride as Chloride‐Ion Batteries Conversion Electrode Material
Authors: Panja Soutam , Miao Yidong , Döhn Johannes , Choi Jaehoon , Fleischmann Simon , Guddehalli Chandrappa Shivaraju , Diemant Thomas , Groß Axel , Karkera Guruprakash , Fichtner Maximilian 
Published: September 2024

AbstractChloride–ion batteries (CIBs) offer a compelling alternative to conventional battery systems, particularly in applications demanding cost‐effectiveness and resource sustainability. However, the development of tailored electrode materials remains a critical bottleneck for CIB advancement. In this study, an untapped class of perovskite‐based material, potassium hexachlorostannate (K2SnCl6, denoted as KSC) is synthesized via a facile mechanochemical route for the first time. The prepared KSC is subjected to various characterization techniques to confirm its crystal structure and morphology. Herein, KSC exhibits intriguing electrochemical performance in a non‐aqueous CIB configuration, utilizing a lithium metal counter electrode. Furthermore, ex situ X‐ray diffraction (XRD) and X‐ray photoelectron spectroscopy (XPS) analysis, reveal a conversion reaction mechanism involving chloride ion shuttling and provide insights into structural evolution during cycling. Moreover, the density functional theory (DFT) studies support additional degradation products that can potentially limit the performance of these materials as potential battery electrodes in CIBs.
Dual‐Core Engineering for Efficient Deep‐Blue Multiple Resonance Thermally Activated Delayed Fluorescent Materials
Authors: Shi Hao‐Nan , Xie Feng‐Ming , Li Hao‐Ze , Tang Jian‐Xin , Li Yan‐Qing 
Published: September 2024

AbstractDeveloping narrowband blue multiple resonance (MR) organic emitters with Commission Internationale de L'Eclairage (CIE) y coordinates <0.1 is essential for advanced display technologies. This study proposes a deep‐blue thermally activated delayed fluorescence (TADF) emitter, named 2BNO, which integrates two independent MR cores. Unlike many TADF materials with single‐bonded dual emitting cores, 2BNO utilizes a steric hindrance‐assisted fluorene bridge to achieve an orthorhombic molecular structure. The dual‐core MR‐TADF emitter shows enhanced light absorption and a high photoluminescence quantum yield. Notably, the emission of 2BNO is not significantly redshifted compared to single‐core compounds and maintains a narrow full width at half‐maximum (FWHM) of 24 nm with CIE coordinates of (0.147, 0.041) in 2Me‐THF solution, nearing the BT.2020 blue standard. Organic light‐emitting diodes (OLEDs) incorporating 2BNO as the emitter exhibit deep‐blue emission at 460 nm with a narrow FWHM of 29 nm and CIE coordinates of (0.14, 0.09). The dual emitting core design significantly improves device efficiency, achieving a high external quantum efficiency (EQE) of 19.8%. The dual‐core molecular design strategy in this work is demonstrated to be effective in promoting the efficiency of the TADF emitters while preserving deep‐blue color purity.
Expanding Our Horizons: AIE Materials in Bacterial Research
Authors: Lee Michelle M. S. , Yu Eric Y. , Chau Joe H. C. , Lam Jacky W. Y. , Kwok Ryan T. K. , Tang Ben Zhong 
Published: September 2024

AbstractBacteria share a longstanding and complex relationship with humans, playing a role in protecting gut health and sustaining the ecosystem to cause infectious diseases and antibiotic resistance. Luminogenic materials that share aggregation‐induced emission (AIE) characteristics have emerged as a versatile toolbox for bacterial studies through fluorescence visualization. Numerous research efforts highlight the superiority of AIE materials in this field. Recent advances in AIE materials in bacterial studies are categorized into four areas: understanding bacterial interactions, antibacterial strategies, diverse applications, and synergistic applications with bacteria. Initial research focuses on visualizing the unseen bacteria and progresses into developing strategies involving electrostatic interactions, amphiphilic AIE luminogens (AIEgens), and various AIE materials to enhance bacterial affinity. Recent progress in antibacterial strategies includes using photodynamic and photothermal therapies, bacterial toxicity studies, and combined therapies. Diverse applications from environmental disinfection to disease treatment, utilizing AIE materials in antibacterial coatings, bacterial sensors, wound healing materials, etc., are also provided. Finally, synergistic applications combining AIE materials with bacteria to achieve enhanced outcomes are explored. This review summarizes the developmental trend of AIE materials in bacterial studies and is expected to provide future research directions in advancing bacterial methodologies.
Five Volts Lithium Batteries with Advanced Carbonate‐Based Electrolytes: A Rational Design via a Trio‐Functional Addon Materials
Authors: Zhang Fuming , Zhang Peng , Zhang Wenhua , Gonzalez Pedro R. , Tan Daniel Q. , Ein‐Eli Yair 
Published: September 2024

AbstractLithium metal batteries paired with high‐voltage LiNi0.5Mn1.5O4 (LNMO) cathodes are a promising energy storage source for achieving enhanced high energy density. Forming durable and robust solid‐electrolyte interphase (SEI) and cathode‐electrolyte interface (CEI) and the ability to withstand oxidation at high potentials are essential for long‐lasting performance. Herein, advanced electrolytes are designed via trio‐functional additives to carbonate‐based electrolytes for 5 V Li||LNMO and graphite||LNMO cells achieving 88.3% capacity retention after 500 charge–discharge cycles. Theoretical calculations reveal that adding adiponitrile facilitates the presence of more hierarchical DFOB− and PF6− dual anion structure in the solvation sheath, leading to a faster de‐solvation of the Li cation. By combining both fluorine and nitrile additives, an efficient synergistic effect is obtained, generating robust thin inorganic SEI and CEI films, respectively. These films enhance microstructural stability; Li dendrite growth on the Li electrode is being suppressed at the anode side and transition‐metals dissolution from the cathode is being mitigated, as evidenced by cryo‐transmission electron microscopy and synchrotron studies.
Tailoring the Surface Properties of ZnO Nanowires by ALD Deposition
Authors: Baratto Camilla , Faglia Guido , Dang Thi Than Le , Ferroni Matteo , Holovanova Viktoria , Nazarchuk Bohdan , Hakola Hanna , Niemi Tapio , Tkachenko Nikolai , Golovanov Viacheslav 
Published: September 2024

AbstractInnovative research on metal‐oxide gas sensors involves nanostructuring and surface modification as key elements to tailor sensitivity and selectivity. This work addresses a ZnO nanowire‐based sensing device obtained by coupling a lithographically prepared substrate with hydrothermal ZnO growth, to align and interconnect the nanowires between two electrical contacts. Furthermore, conformal coating by atomic layer deposition technique allows functionalization of the surface of the nanowires with sub‐monolayers of Al2O3 and TiO2. A detailed analysis is carried out from a morphological and structural point of view with photoluminescence and Raman spectroscopy and electron microscopy. The material characterization results are analyzed in comparison with the functional characterization in gases toward reducing (NO2) and oxidizing (H2S) gases. Unparalleled sensing enhancement with Atomic Layer Deposition functionalization is obtained for NO2 detection. The passivation role of surface states is discussed combining information from experimental techniques with a proposed model.
Wetting and Dewetting Behaviors of Droplets on the Nanoring Surface
Authors: Cheng Ziyi , Wu Xiao , Zhang Yudong , Peng Wei , Zhu Mingfu , Liang Tianshui , Li Shijiao , Hao Yilin , Zhang Zheyuan , Wei Ronghan 
Published: September 2024

AbstractThis study uses molecular dynamics simulations to investigate the wetting behavior of water droplets on a gold substrate with annular grooves. The research finds that droplet size and substrate hydrophilicity similarly affect wetting behavior. Enhanced hydrophilicity changes the velocity trend of droplet contact line movement, while droplet size impacts the magnitude of velocity change. Contact angle fluctuations are observed and analyzed theoretically based on Young's equation. The results provide insights into the relationship between droplet dynamics and surface structure, contributing to a better understanding of wetting processes at the microscopic level.
Reversible Switching of Light‐Gated Organic Transistors Employing Dihydroazulene/Vinylheptafulvene Photo‐/Thermochromic Molecules
Authors: Gebel Sten , Aiboudi Oumaima , Grigorescu Vladimir , Ling Zhitian , Marszalek Tomasz , Blom Paul W. M. , Ramanan Charusheela , Lissel Franziska , Kraft Ulrike 
Published: September 2024

AbstractAn innovative possibility to introduce additional functionality to organic field‐effect transistors (OFETs) is to employ photochromic molecules, which undergo reversible isomerization under applied stimuli such as irradiation with specific wavelengths. As a result, the transistors not only can be switched on/off by the applied voltages, they can also be programmed by alternate triggers, such as light. Here, reversible switching of OFETs is presented by blending various dihydroazulene/vinylheptafulvene photoswitches into polythiophene‐based conjugated polymers. In result, the transfer characteristics of the transistors are altered significantly through UV irradiation. In contrast to current literature on different photoswitches such as spiropyrans or diarylethenes, the backreaction is induced thermally and not via visible light irradiation and reproducibly yields the pristine transistor characteristics. This reversible switching upon alternating UV irradiation and thermal annealing is quantified by figures of merit such as the magnitude of drain current, threshold voltage, and subthreshold swing. Irradiating the devices with different doses of UV light shows that the magnitude of switching directly depends on the respective UV dose, hence enabling a multi‐level electronic system. Furthermore, long‐term cyclability over 100 steps of repeated UV light exposure and thermal annealing is demonstrated.
Emerging Optoelectronic Devices for Brain‐Inspired Computing
Authors: Hu Lingxiang , Zhuge Xia , Wang Jingrui , Wei Xianhua , Zhang Li , Chai Yang , Xue Xiaoyong , Ye Zhizhen , Zhuge Fei 
Published: September 2024

AbstractBrain‐inspired neuromorphic computing is recognized as a promising technology for implementing human intelligence in hardware. Neuromorphic devices, including artificial synapses and neurons, are regarded as essential components for the construction of neuromorphic hardware systems. Recently, optoelectronic neuromorphic devices are increasingly highlighted due to their potential applications in next‐generation artificial visual systems, attributed to their integrated sensing, computing, and memory capabilities. In this review, recent advancements in optoelectronic synapses and neurons are examined, with an emphasis on their structural characteristics, operational principles, and the replication of neuromorphic functions. For optoelectronic synaptic devices, such as memristor‐ and transistor‐based ones, attention is given to the two primary weight update modes: the light‐electricity synergistic mode and the all‐optical mode. Optoelectronic neurons are discussed in terms of different device types, including threshold switch neurons and semiconductor laser neurons. Last, the challenges that impede the progress of optoelectronic neuromorphic devices are identified, and potential future directions are suggested.
Electrical Sensing of Molecular Spin State Switching in a Spin Crossover Complex Using an Organic Field‐Effect Transistor
Authors: Zhang Yuteng , Alavi Seyed Ehsan , Soroceanu Ion , Kamau Dennis Wanyoike , Rotaru Aurelian , Séguy Isabelle , Salmon Lionel , Molnár Gábor , Bousseksou Azzedine 
Published: September 2024

AbstractAn organic semiconductor – spin crossover polymer composite heterostructure is fabricated, and it is integrated into an organic field‐effect transistor (OFET) with the aim to achieve electrical sensing of molecular spin state switching events. The OFETs display ≈50–70% increase in drain‐source current intensity when going from the low spin (LS) to the high spin (HS) state. This phenomenon is reversible without apparent fatigue and the application of a gate voltage significantly enhances the sensing sensitivity. Capacitance measurements and finite element calculations allow identifying mechanical stress, induced by the spin state switching, at the origin of the transistor response. These results open up appealing perspectives for the integration of spin crossover molecules into technological applications, such as soft robotics
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Investigating TNNC1 gene inheritance and clinical outcomes through a comprehensive familial study
Authors: Patsalis Constantinos , Kyriakou Skevi , Georgiadou Michaella , Ioannou Lygia , Constantinou Louisa , Soteriou Valando , Jossif Antonis , Evangelidou Paola , Sismani Carolina , Kypri Elena , Ioannides Marios , Koumbaris George 
Published: September 2024

AbstractHypertrophic cardiomyopathy (HCM) and restrictive cardiomyopathy (RCM) have significant phenotypic overlap and a similar genetic background, both caused mainly by variants in sarcomeric genes. HCM is the most common cardiomyopathy, while RCM is a rare and often underdiagnosed heart condition, with a poor prognosis. This study focuses on a large family with four infants diagnosed with fatal RCM associated with biventricular hypertrophy. Affected infants were found to be homozygous for NM_003280.3(TNNC1):c.23C>T(p.Ala8Val) variant. Interestingly, this variant resulted in a low penetrance and mild form of hypertrophic cardiomyopathy (HCM) in relatives carrying a single copy of the variant. Overall, this study underscores the complex nature of genetic inheritance in cardiomyopathies and the wide range of clinical presentations they can exhibit. This emphasizes the vital role of genetic testing in providing essential insights crucial for diagnosis, prognosis, early intervention, and the development of potential treatment strategies.
Oxindolyl‐Based Radicals with Tunable Mechanochromic and Thermochromic Behavior
Authors: Xu Tingting , Han Yi , Ni Yong , Chi Chunyan 
Published: September 2024

AbstractOrganic radicals based dynamic covalent chemistry is promising in preparing stimuli‐responsive chromic materials, due to their simplicity of dissociation/association, accompanied with distinct color changes during the process. However, suitable organic radicals for dynamic covalent chemistry have not been widely explored yet. Herein, a series of oxindolyl‐based mono‐radicals (OxRs) with different substituents were successfully synthesized and studied systematically as potential building blocks for stimuli‐responsive chromic materials. These OxRs would dimerize spontaneously to form their corresponding dimers. The structures of dimers were unambiguously confirmed through low‐temperature 1H NMR and single‐crystal X‐ray diffraction analyses. Dynamic interconversion between monomers and dimers was achieved by reversible cleavage and recovery of the σ‐bond upon soft external stimuli (temperature, pressure, and solvent polarity), accompanied by significant color changes. It is interesting that the stability of the mono‐radical could be tuned through changing different substituents, and consequently altering the bond dissociation energy of the dynamic covalent bond between monomers. These new OxRs characterized by appreciable properties are entitled to more opportunities in developing mechanochromic and thermochromic materials, where their responsiveness to stimuli can be readily controlled by the substituents adhered.
Copper‐Catalyzed Asymmetric Hydrogenation of Unsymmetrical ortho‐Br Substituted Benzophenones
Authors: Guan Jing , Luo Yicong , Wang Qiyuan , Chen Jianzhong , Zhang Wanbin 
Published: September 2024

AbstractThe asymmetric hydrogenation of benzophenones, catalyzed by low‐activity earth‐abundant metal copper, has hitherto remained a challenge due to the substrates equipped with two indistinguishably similar aryl groups. In this study, we demonstrated that the prochiral carbon of the ortho‐bromine substrate exhibits the highest electrophilicity and high reactivity among the ortho‐halogen substituted benzophenones, as determined by the Fukui function (f+) analysis and hydrogenation reaction. Considering that the enantiodirecting functional bromine group can be easily derivatized and removed in the products, we successfully achieved a green copper‐catalyzed asymmetric hydrogenation of ortho‐bromine substituted benzophenones. This method yielded a series of chiral benzhydrols with excellent results. The utility of this protocol has been validated through a gram‐scale reaction and subsequent product transformations. Independent gradient model based on Hirshfeld partition (IGMH) and energy decomposition analysis (EDA) indicate that the CH⋅⋅⋅HC multiple attractive dispersion interactions (MADI) effect between the catalyst and substrate enhances the catalyst's activity.