bluuebunny/crossref_metadata_2025_split huggingface dataset:
Amplified Photoluminescence of CsPbX3 Perovskites Confined in Silica Film with a Chiral Nematic Structure
Authors: Knezevic Marija , Hoang Thi‐Hieu , Wang Cong , Johar Masa , Manjón Alba Garzón , Rauret David Llorens , Scheu Christina , Erard Marie , Berardan David , Arbiol Jordi , Colbeau‐Justin Christophe , Ghazzal Mohamed Nawfal 
Published: November 2023

AbstractMetal halide perovskites (MHPs, CsPbX3: X = Cl, Br, I) have advanced the field of optoelectronic devices due to their remarkable light‐emitting capabilities, stemming from the large overlap between their emission and absorption spectra, offering the possibility to reabsorb their own emitted photons. Herein, a straightforward method is reported to confine CsPbBr3 into mesoporous silica films with a chiral nematic structure, allowing the amplification of the photoluminescence (PL). The simple room temperature ligand‐free synthesis allows facile growth of CsPbBr3 in silica photonic films, in which the Bragg peak position can be tuned from the UV to the visible range. The perovskite/silica films demonstrate a remarkable improvement in PL intensity and lifetime compared to the as‐synthesized non‐confined perovskite nanocrystals (NCs) due to the overlap of the Bragg peak position of the chiral nematic photonic films and CsPbBr3 absorption band. Such a PL enhancement stems from the slow photon effect induced at blue and red Bragg peak edges that facilitates the photon recycling of the emitted photons. This innovative approach offers a new way to fabricate highly emissive and long‐lived photoluminescent films at ambient conditions, potentially advancing perovskite utilization in light‐emitting devices.
Core‐Shell Micro‐ and Nano‐Structures for The Modification of Light‐Surface Interactions
Authors: Yeo Reuben J. , Yeo Jayven C. C. , Yu Tan Sze , Sng Anqi , Tomczak Nikodem , Muiruri Joseph Kinyanjui , Wang Suxi , Wang Pei , Thitsartarn Warintorn , Wang Fuke , Ye Enyi , Li Zibiao , Xu Jianwei , Loh Xian Jun , Zhu Qiang 
Published: November 2023

AbstractControlling how a material interacts with light is key to optimizing its optical properties to fit a desired function or application. The most straightforward approach is to chemically or physically modify the surface exposed to incident light. An effective method of surface modification is based on the addition of core‐shell structures at the surface. Of particular importance to many technological applications are core‐shell structures with dimensions comparable to the wavelengths of light extending from the UV up to the near‐IR region of the electromagnetic spectrum, which coincides with the major part of the solar spectrum. Surface modification approaches to tailor the optical properties of materials in this range of wavelengths are increasingly relevant in the context of materials and devices used in sustainable energy applications, such as solar cells and heat‐reflective paints. These materials are useful to mitigate the current energy and climate crises by allowing for enhanced energy harvesting and improved thermal management, respectively. Here, recent progress in the fabrication and application of core‐shell micro‐/nano‐structures for the modification of light interaction with surfaces is highlighted. Some limitations and future directions for the design of core‐shell materials are also discussed.
A Flexible, Wearable, Humidity‐Resistant and Self‐Powered Sensor Fabricated by Chitosan‐Critic Acid Film and its Applications in Human Motion Monitoring and Energy Harvesting
Authors: Zhang Xing , Ma Yanran , Wang Yongfa , Li Li , Wang Peihong , Wang Chunchang 
Published: November 2023

AbstractBeing a resource‐abundant natural material, chitosan shows good frictional electrical properties and has become one of the most used materials for triboelectric nanogenerators (TENGs). To improve water resistance and mechanical properties, herein, a strategy is proposed to modify the chitosan film by citric acid. The results show that both humidity‐resistant and mechanical properties of the modified films can be notably enhanced due to the formation of a network structure between chitosan molecular chains. Excellent output performance of 77.5 V and 2.66 µA is achieved in the TENG based on the modified film with a mass ratio of chitosan/citric acid = 3:1. Under a relative humidity (RH) of 80%RH, it can output 70.16% of the voltage compared to that under 20%RH. Self‐powered tactile sensor based on the TENG exhibits a sensitive response to pressure and bending and humidity resistance, giving the sensor tremendous promise for a wider range of human motion monitoring and energy harvesting.
Effect of Laser Power on Nanocutting Mechanism of Silicon Carbide Ceramic: A Molecular Dynamics Simulation
Authors: Liu Bing , Wang Yurong , Yang Haijie , Jiang Kai 
Published: November 2023

AbstractSilicon carbide (SiC) ceramic is being increasingly applied in several engineering fields owing to its excellent saturation electron drift rate. Although much attention is paid to its material removal mechanism, producing a high‐quality SiC surface with a high material removal rate is still a challenging issue. Therefore, there is a need to investigate the material removal mechanism of SiC to improve the processing performance. In this study, the laser heating‐assisted nanocutting models are established using a molecular dynamics method. Then, a laser beam with various energies is irradiated onto the SiC. The influence of average laser power on the nanocutting mechanism of SiC is revealed in terms of the temperature of the machined region, cutting force, stress distribution state, subsurface damage, and tool wear. The results demonstrate that within the scope of this study, the using of laser irradiation methods has a positive effect on the machinability of SiC at the nanoscale, provided that the laser power density does not exceed the ablation threshold. Meanwhile, the results indicate that laser heating‐assisted methods have played an important role in suppressing tool wear. This study has significant theoretical and practical value in processing technology.
The Electronic Structure and Stability of Ti2SnC/Ag Interface Studied by First‐Principles Calculations
Authors: Nian Yongheng , Zhang Zhengyun , Liu Manmen , Zhou Xiaolong 
Published: November 2023

AbstractIn this paper, the electronic properties, the adhesive energy, and the interface energy of the MAX phase Ti2SnC(0001)/Ag(111) interface are systematically investigated using first principles based on density functional theory. Four different terminations of Ti2SnC(0001) are considered, and 16 different Ti2SnC(0001)/Ag(111) interface configurations are obtained by varying the stacking positions of the atoms. After calculating the electronic structure, adhesion work, and interface energy of these interface model interfaces with the same terminal but different atomic positions, it is found that the interface of the same terminal has a very limited effect on the interface bonding of the interface model by changing the stacking order of the interface atomic layer. By comparing the adhesion work and interface energy of 16 interface models, it is found that the HCP2 configuration of C‐Ti2SnC(0001)/Ag(111)interface structure has the highest adhesion work and the lowest interface energy. The larger the adhesion work is, the stronger the bonding between the interface atoms is. Meanwhile, the smaller the interface energy (positive value) is, the more stable the interface is. By calculating the electronic structure of the interface, the accuracy of the above results is further verified after analyzing the partial density of states (PDOS) and charge density difference of the interface.
Electrolyte Additives for Stable Zn Anodes
Authors: Bai Shengchi , Huang Zhaodong , Liang Guojin , Yang Rui , Liu Di , Wen Wen , Jin Xu , Zhi Chunyi , Wang Xiaoqi 
Published: November 2023

AbstractZn‐ion batteries are regarded as the most promising batteries for next‐generation, large‐scale energy storage because of their low cost, high safety, and eco‐friendly nature. The use of aqueous electrolytes results in poor reversibility and leads to many challenges related to the Zn anode. Electrolyte additives can effectively address many such challenges, including dendrite growth and corrosion. This review provides a comprehensive introduction to the major challenges in and current strategies used for Zn anode protection. In particular, an in‐depth and fundamental understanding is provided of the various functions of electrolyte additives, including electrostatic shielding, adsorption, in situ solid electrolyte interphase formation, enhancing water stability, and surface texture regulation. Potential future research directions for electrolyte additives used in aqueous Zn‐ion batteries are also discussed.
Cytoprotective Metal–Phenolic Network Sporulation to Modulate Microalgal Mobility and Division
Authors: Li Xiaojie , Liu Hai , Lin Zhixing , Richardson Joseph J. , Xie Weiying , Chen Feng , Lin Wei , Caruso Frank , Zhou Jiajing , Liu Bin 
Published: November 2023

AbstractSynthetic cell exoskeletons created from abiotic materials have attracted interest in materials science and biotechnology, as they can regulate cell behavior and create new functionalities. Here, a facile strategy is reported to mimic microalgal sporulation with on‐demand germination and locomotion via responsive metal–phenolic networks (MPNs). Specifically, MPNs with tunable thickness and composition are deposited on the surface of microalgae cells via one‐step coordination, without any loss of cell viability or intrinsic cell photosynthetic properties. The MPN coating keeps the cells in a dormant state, but can be disassembled on‐demand in response to environmental pH or chemical stimulus, thereby reviving the microalgae within 1 min. Moreover, the artificial sporulation of microalgae resulted in resistance to environmental stresses (e.g., metal ions and antibiotics) akin to the function of natural sporulation. This strategy can regulate the life cycle of complex cells, providing a synthetic strategy for designing hybrid microorganisms.
Robust Hybrid Solid Electrolyte Interface Induced by Zn‐Poor Electric Double Layer for A Highly Reversible Zinc Anode
Authors: Fang Xiao , Hu Chao , Sun Xiaoyi , Wang Haiyan , Li Juan 
Published: November 2023

AbstractAqueous Zn‐ion batteries (AZIBs) show great potential in new energy storage devices due to low cost, inherent safety, and environmental friendliness. However, the severe dendrites and side reactions on the anode greatly constrain their practical application. Herein, a novel colloidal electrolyte composed of ZnSO4 and sodium carboxymethyl cellulose (CMC‐Na) has been developed for inhibiting dendrite growth on Zn anode. Molecular dynamics (MD) simulation confirms that CMC‐Na alters the electric double layer (EDL) structure of Zn anode surface to reduce the content of water and SO42− and inhibit side reactions. More importantly, an organic/inorganic hybrid solid electrolyte interface (SEI) layer is in situ constructed during the cycling, which enables ultrastable Zn plating/stripping (> 2000 h) under high current density (5 mA cm−2, 5 mAh cm−2) and high coulombic efficiency (99.8%) for more than 1000 cycles. Meanwhile, zinc‐ion hybrid capacitors (ZIHCs) with the colloidal electrolyte exhibit a favorable capacitance retention of 97% after 15000 cycles at the current density of 2 A g−1. Even at a high current density of 5 A g−1, it still has a capacitance retention of 96% after 30000 cycles. This study presents a novel electrolyte strategy for the formation of ultrastable electrode‐electrolyte interfaces in AZIBs.
Hybrid Double Atom Catalysts for Hydrogen Evolution Reaction: A Sweet Marriage of Metal and Nonmetal
Authors: Zhang Lihong , Guo Xiangyu , Zhang Shengli , Frauenheim Thomas , Huang Shiping 
Published: November 2023

AbstractSearching for active and low‐cost electrocatalysts for the hydrogen evolution reaction (HER) is crucial to develop sustainable energy, yet it remains a significant challenge. Based on the density functional theory calculations, a new kind of double atom catalysts (HDACs) with hybrid metal and nonmetal center embedded in g‐CN is reported for the HER. It is demonstrated that the introduction of the nonmetal atoms (B, C, Si, P, and S) near the metal sites enables unique charge communication between them, which offers diatomic center a very different catalytic activity than the single atom counterparts. Out of 130 HDACs, Pd‐B, Ti‐C, Ir‐C, Cr‐Si, Mn‐Si, Co‐Si, Rh‐Si, Au‐Si, Ir‐P, Fe‐S, and Ni‐S pairs are identified as the high‐performance electrocatalysts with nearly ideal adsorption strength for proton. Machine learning analysis allows to directly identify the key characteristics that affect the catalytic activity and establish a predictable framework for a fast screen of the unknown chemical space of HDACs. This work paves a new avenue for designing and developing potential HER catalysts.
Control Lyapunov‐barrier function‐based safe reinforcement learning for nonlinear optimal control
Authors: Wang Yujia , Wu Zhe 
Published: November 2023

AbstractThis article develops a safe reinforcement learning (SRL) algorithm for optimal control of nonlinear systems with input constraints. First, we design a novel performance index function by taking advantage of control Lyapunov‐barrier functions (CLBF) with inherent safety and stability properties to ensure closed‐loop stability and safety during operation under the optimal control policy. Additionally, since it is challenging to represent the CLBF‐based value function as an explicit function of process states, neural networks (NNs) are used to approximate the value function using the process operational data that indicate safe and unsafe operations. Theoretical results on the stability, safety, and optimality of the SRL algorithm are developed, accounting for the approximation error of the NN‐based value function. Finally, the efficacy of the proposed safe optimal control scheme is shown using an application to a chemical process example.
Palladium‐Catalyzed Synthesis of Bicyclic Derivatives from the Cyclization/1,4‐Difunctionalization of Bromoarenes with Diazo Compounds
Authors: Kato Hiroki , Fukuhara Yuki , Miyazaki Ryuya , Muto Kei , Yamaguchi Junichiro 
Published: November 2023

AbstractA Pd‐catalyzed cyclization/1,4‐difunctionalization of bromoarenes bearing a carbon nucleophile with diazo compounds has been developed. The present reaction proceeds through a π‐benzyl palladium intermediate, whose reactivity is a key for the remarkable 1,4‐selectivity of this reaction, providing functionalized indans and tetralins.
Associations Between Social Network Characteristics and Brain Structure Among Older Adults
Authors: Manchella Mohit K. , Logan Paige E. , Perry Brea L. , Peng Siyun , Risacher Shannon L. , Saykin Andrew J. , Apostolova Liana G. 
Published: November 2023

AbstractINTRODUCTIONSocial connectedness is associated with slower cognitive decline among older adults. Recent research suggests that distinct aspects of social networks may have differential effects on cognitive resilience, but few studies analyze brain structure.METHODSThis study includes 117 cognitively impaired and 59 unimpaired older adults. The effects of social network characteristics (bridging/bonding) on brain regions of interests were analyzed using linear regressions and voxel‐wise multiple linear regressions of gray matter density.RESULTSIncreased social bridging was associated with greater bilateral amygdala volume and insular thickness, and left frontal lobe thickness, putamen, and thalamic volumes. Increased social bonding was associated with greater bilateral medial orbitofrontal and caudal anterior cingulate thickness, as well as right frontal lobe thickness, putamen, and amygdala volumes.DISCUSSIONThe associations between social connectedness and brain structure vary depending on the types of social enrichment accessible through social networks, suggesting that psychosocial interventions could mitigate neurodegeneration.Highlights
Distinct forms of social capital are uniquely linked to gray matter density (GMD).
Bridging is associated with preserved GMD in limbic system structures.
Bonding is associated with preserved GMD in frontal lobe regions.
Bridging is associated with increased brain reserve in sensory processing regions.
Bonding is associated with increased brain reserve in regions of stress modulation.
Cinobufotalin prevents bone loss induced by ovariectomy in mice through the BMPs/SMAD and Wnt/β‐catenin signaling pathways
Authors: Lu Da‐zhuang , Zeng Li‐jun , Li Yang , Gu Ran‐li , Hu Meng‐long , Zhang Ping , Yu Peng , Zhang Xiao , Xie Zheng‐wei , Liu Hao , Zhou Yong‐sheng 
Published: November 2023

AbstractBackgroundOsteoporosis is a chronic bone disease characterized by bone loss and decreased bone strength. However, current anti‐resorptive drugs carry a risk of various complications. The deep learning‐based efficacy prediction system (DLEPS) is a forecasting tool that can effectively compete in drug screening and prediction based on gene expression changes. This study aimed to explore the protective effect and potential mechanisms of cinobufotalin (CB), a traditional Chinese medicine (TCM), on bone loss.MethodsDLEPS was employed for screening anti‐osteoporotic agents according to gene profile changes in primary osteoporosis. Micro‐CT, histological and morphological analysis were applied for the bone protective detection of CB, and the osteogenic differentiation/function in human bone marrow mesenchymal stem cells (hBMMSCs) were also investigated. The underlying mechanism was verified using qRT‐PCR, Western blot (WB), immunofluorescence (IF), etc.ResultsA safe concentration (0.25 mg/kg in vivo, 0.05 μM in vitro) of CB could effectively preserve bone mass in estrogen deficiency‐induced bone loss and promote osteogenic differentiation/function of hBMMSCs. Both BMPs/SMAD and Wnt/β‐catenin signaling pathways participated in CB‐induced osteogenic differentiation, further regulating the expression of osteogenesis‐associated factors, and ultimately promoting osteogenesis.ConclusionOur study demonstrated that CB could significantly reverse estrogen deficiency‐induced bone loss, further promoting osteogenic differentiation/function of hBMMSCs, with BMPs/SMAD and Wnt/β‐catenin signaling pathways involved.
Aggressive surgery for incisional hernia with necrotizing soft tissue infection highlighting unique abdominal findings
Authors: Tokumaru Teppei , Kurata Hideaki , Nakaebisu Rei , Tomioka Joji 
Published: November 2023

AbstractBackgroundSurgery for incisional hernias with obesity can be more challenging because obesity is associated with perioperative complications. Necrotizing soft tissue infection (NSTI) is a life‐threatening condition that requires aggressive surgical management. Few incisional hernias with NSTI have been reported, and the optimal strategy is undetermined.Case PresentationA 66‐year‐old obese woman had been diagnosed with incisional hernia 4 years previously but was not treated. She presented with abdominal pain that had worsened 2 weeks previously. Emergency radical surgery was carried out for an incisional hernia with NSTI. The abdominal fascia was sutured directly without mesh. Negative pressure wound therapy was performed after surgery. The postoperative course was uneventful, without recurrence.ConclusionsAggressive surgery is a valid strategy for life‐threatening incisional hernias with NSTI. Strategies should be developed based on physiological and anatomical findings.
Jumping Platonic Solids on a Vibrating Plate
Authors: Dieckmann Niklas , Puzyrev Dmitry , Trittel Torsten , Stannarius Ralf 
Published: November 2023

AbstractThe mechanical excitation of solid bodies by a vibrating plate is not only an interesting fundamental problem, but also has relevance in many mechanical systems, for example, in the preparation of granular gases in microgravity. Herein, the energy input by an oscillating plate is numerically investigated as a function of the excitation parameters for selected Platonic solids and their behavior compared to that of a jumping sphere. The most important additional features, not relevant for spheres, are the excitation of body rotations and a permanent energy exchange between the rotational and translational degrees of freedom during the collisions with the plate. The distribution of kinetic energies is analyzed by a numerical simulation of the dynamics, using structures which emulate the mechanical behavior of regular polyhedra.
A Non‐Standard Coupling Between Quantum Systems Originated From Their Kinetic Energy
Authors: Shushi Tomer 
Published: November 2023

AbstractIn standard quantum mechanics, the coupling between quantum systems is described by a potential interaction term in the Hamiltonian. This type of coupling is well‐rooted in nature and shapes the universe around us, from the interactions between single photons to the attractive force between atoms that forms molecules. Quantum mechanics does not forbid other kinds of interactions to take place. In this paper, a non‐standard quantum coupling between quantum systems is proposed, originated from the kinetic energy rather than the potential interaction in the Hamiltonian. Unlike the potential‐based coupling, the proposed coupling changes the fundamental structure of quantum mechanics in the form of modified uncertainty relations that are shaped by the coupling between the particles in the system. Two prototypical examples of non‐standard systems that perform such kinetic‐based coupling are presented. In the first example, it considers a particle confined in a heterostructure, such as a quantum dot, where the coupling is between the particle and dynamic walls that determine the size of the heterostructure. The second example involves a particle in a 3D heterostructure with coupling between its position axes. It then discusses several future implications of the proposed type of non‐standard coupling.
Dual‐Targeting Biomimetic Semiconducting Polymer Nanocomposites for Amplified Theranostics of Bone Metastasis
Authors: Zhang Yijing , Wang Yue , Zhu Anni , Yu Ningyue , Xia Jindong , Li Jingchao 
Published: November 2023

AbstractBone metastasis is a type of metastatic tumors that involves the spreads of malignant tumor cells into skeleton, and its diagnosis and treatment remain a big challenge due to the unique tumor microenvironment. We herein develop osteoclast and tumor cell dual‐targeting biomimetic semiconducting polymer nanocomposites (SPFeNOC) for amplified theranostics of bone metastasis. SPFeNOC contain semiconducting polymer and iron oxide (Fe3O4) nanoparticles inside core and surface camouflaged hybrid membrane of cancer cells and osteoclasts. The hybrid membrane camouflage enables their targeting to both metastatic tumor cells and osteoclasts in bone metastasis through homologous targeting mechanism, thus achieving an enhanced nanoparticle accumulation in tumors. The semiconducting polymer mediates near‐infrared (NIR) fluorescence imaging and sonodynamic therapy (SDT), and Fe3O4 nanoparticles are used for magnetic resonance (MR) imaging and chemodynamic therapy (CDT). Because both cancer cells and osteoclasts are killed synchronously via the combinational action of SDT and CDT, the vicious cycle in bone metastasis is broken to realize high antitumor efficacy. Therefore, 4T1 breast cancer‐based bone metastasis can be effectively detected and cured by using SPFeNOC as dual‐targeting theranostic nanoagents. This study provides an unusual biomimetic nanoplatform that simultaneously targets osteoclasts and cancer cells for amplified theranostics of bone metastasis.