bluuebunny/crossref_metadata_2025_split huggingface dataset:
Distributed Filtering for State‐Saturated Systems With Switching Nonlinearities via Rayleigh Fading Channels: An Adaptive Event‐Triggered Case
Authors: Zhang Qingbo , Hu Jun , Liu Desheng , Zhu Mingqing , Yu Hui 
Published: January 2025

ABSTRACTThe distributed filtering (DF) problem is investigated for state‐saturated systems (SSSs) with switching nonlinearities under the adaptive event‐triggered mechanism (AETM) and Rayleigh fading channels over sensor networks, where the data is transmitted between nodes through the Rayleigh fading channel. In addition, the AETM is introduced to save communication resources and improve data transmission efficiency. First, a distributed filter is designed incorporating the information of state saturation, switching nonlinearity, Rayleigh fading channel and AETM. Second, the upper bound (UB) on the filtering error covariance (FEC) is derived by the mathematical induction method, and the filter gain is obtained by minimizing the trace of the UB. Subsequently, the boundedness of UB on the FEC is shown through mathematical analysis. Finally, the effectiveness of the filtering scheme designed in this article is demonstrated through a numerical simulation example and a practical example, in which the influence of different Rayleigh parameters to the filtering performance and the superiority of using the AETM are discussed.
From Fiber to Power: Recent Advances Toward Electrospun‐Based Nanogenerators
Authors: Li Xiuhong , Li Jiangzhou , Li Kai , Zhang Shuailong , Yang Zhiyong , Zhang Chupeng , Zhang Jinjiao , Li Yi , Zhang Daode , Liu Yong , Hu Xinyu 
Published: January 2025

AbstractElectrospun micro/nanofibers have gained popularity recently for nanogenerators owing to their advantages of portability, compatibility, breathability, mechanical flexibility, and function integrability, etc. These merits offer nanogenerators unprecedented micro/nanostructure adjustment and versatility. With the rapid advancements of the Internet of Things (IoT) and micro/nano technology, the developments of electrospun‐based nanogenerators with extra‐high performance, low cost, and widely applicable are significant for satisfying the urgent demand for efficient energy sources. To accelerate the process, this paper provides a comprehensive analysis of their advantages, preparation processes, classifications, and enhancement strategies concerning electrospun‐based nanogenerators through systematically reviewing the current related literature. Initially, the advantages of electrospinning for preparing electrospun‐based nanogenerators are briefly concluded. Then, the preparation processes, classifications, and unique characteristics of various types of electrospun‐based nanogenerators are elaborated. Furthermore, the strategies to enhance the performance and versatility of electrospun‐based nanogenerators are discussed, focusing on materials construction, structure design, and functionalization assisted with pre/post‐treatment. Finally, the challenges and the coping strategies of electrospun‐based nanogenerators are addressed, providing future research interests for the next generation of electrospun‐based nanogenerators.
Honeysuckle‐Derived Carbon Dots With Robust Catalytic and Pharmacological Activities for Mitigating Lung Inflammation by Inhibition of Caspase11/GSDMD‐Dependent Pyroptosis
Authors: Deng Zhichao , Zhang Yujie , Li Runqing , Zhu Yuanyuan , Xu Chenxi , Gao Bowen , Wang Wenlong , Ding Chenguang , He Bin , Zhu Xingzhuo , Yang Mei , Liang Ting , Zhang Mingzhen 
Published: January 2025

AbstractThe catalytic activity of carbon dots (CDs) has generated significant interest regarding their potential applications within the biomedical field. However, the structure‐activity relationship of CDs and their pharmacological mechanisms in disease treatment have yet to be comprehensively elucidated. In this study, two distinct types of CDs exhibiting superoxide dismutase (SOD)‐like enzymatic activities are synthesized through hydrothermal (Hy‐CDs) and carbonization (Ca‐CDs) methods, utilizing Honeysuckle as the common carbon material precursor. Through comparative analysis, surface group modifications, and theoretical calculations, it is determined that the SOD‐like enzymatic activity of CDs primarily originated from the stabilizing influence of the amino group on the superoxide (•O2−) intermediate and its conjugation to the π‐system, facilitating electron transfer. In vitro experiments demonstrated that Hy‐CDs effectively alleviated cellular oxidative stress and inhibited the secretion of pro‐inflammatory cytokines. Furthermore, the significant bioactivity and catalytic properties of Hy‐CDs contribute to their pronounced therapeutic efficacy in the treatment of acute lung injury (ALI) and lung ischemia/reperfusion injury (LIRI). Guided by transcriptomic analysis and Western blotting, it is demonstrated that Hy‐CDs effectively inhibit Caspase11/GSDMD‐dependent non‐classical pyroptosis by down‐regulating GBP2 protein expression, thereby contributing to lung inflammation. This study elucidates the structure‐activity relationship and underlying biological mechanisms of Hy‐CDs in therapeutic applications.
High‐Valence Selenium Nanotherapeutics Downregulates MUC16 to Drive Precise Ovarian Cancer Therapy through Redox Perturbation
Authors: Hu Xiaoli , Yuan Zhongwen , Huang Guanning , Chen Mingkai , Chen Tianfeng , He Lizhen 
Published: January 2025

AbstractAbnormal expression of transmembrane mucin 16 (MUC16) in ovarian cancer (OC) can promote progression of epithelial–mesenchymal transformation, enhance tumor cell proliferation, migration, and invasion. Therefore, herein a targeted therapeutic high‐valence selenium (Se) nanomedicine (MUC16‐SeMnf@Res) is designed, which can target MUC16 to recognize OC and simultaneously inhibit MUC16 expression to achieve efficient treatment of OC. The valence bidirectional editing strategy is used to design and synthesize a high‐valence Se nanosystem (SeMnf) through triggering a redox reaction between triclinic Se and manganese dioxide nanoflower (Mnf), and inducing the valence conversion to Se4+ and Mn2+. The high‐valence Se4+ and increased Mn2+ ratio within SeMnf disrupt intracellular redox homeostasis by inducing glutathione (GSH) depletion and reactive oxygen species (ROS) overproduction. Moreover, the effects of ROS overproduction are further amplified by loaded resveratrol (Res), which significantly induces mitochondrial dysfunction and inhibited MUC16 expression, then promoting caspase‐activated cell apoptosis as well as migration inhibitory. Taken together, this study not only sheds light on the important role of MUC16 in designing OC‐targeting drugs, but also provides a simple and translational strategy by developing Se nanotherapeutics with strong redox‐homeostasis disrupting capability to realize MUC16‐targeting therapy.
Polythiophenes for High‐Performance N‐type Organic Electrochemical Transistors
Authors: Zhang Chan , Zheng Yuting , Li Yanru , Xue Zhongyuan , Zhu Xiuyuan , Chen Jiawei , Ma Jianeng , Zhang Zhi , Zhong Hongliang , Yue Wan , Lei Ting , Fei Zhuping 
Published: January 2025

AbstractN‐type organic electrochemical transistor (OECT) materials play a critical role in building low‐power complementary circuits and advanced biosensors. However, current n‐type OECT materials are usually based on complicated fused aromatics and cannot simultaneously achieve high performance and good stability. Despite a few design strategies for n‐type polythiophene‐based organic field‐effect transistor (OFET) materials, they cannot be directly applied to OECT materials which work in highly doped states. Here, it is reported that polythiophenes, which always show p‐type OECT behaviors, can be designed and converted to high‐performance n‐type OECT materials by a synergy of introducing electron‐withdrawing (EW) groups, controlling polaron delocalization, and tuning molecular packing. Two isomeric n‐type polythiophene derivatives, o‐CNgTVT‐2FT and i‐CNgTVT‐2FT are designed, which show interesting and distinct OECT properties. o‐CNgTVT‐2FT exhibits excellent n‐type OECT performance with a remarkable figure of merit (µC*) of 100.0 F cm−1 V−1 s−1 while keeping an outstanding current retention of 93.6% after 1000 switching cycles in the air. The high performance can be largely attributed to its more delocalized and stabilized negative charges, efficient 3D charge transport channels, and favorable film morphology. The work highlights that without complex fused aromatic rings, carefully designed polythiophene polymers can also be used for high‐performance and stable n‐type OECTs.
Unraveling the Mechanism of Cu/CeO2 Interface Modulation for CO2 Electroreduction Into C2+/CH4
Authors: Xiong Lei , Fu Xianbiao , Zhang Jun , Liu Shuang , Li Shanshan , Lu Shaojie , Wang Dong , Yue Qin 
Published: January 2025

AbstractCu shows unique characteristics for electrochemical CO2 reduction reaction (CO2RR) to hydrocarbons and oxygenates due to the moderate adsorption energy of the key intermediate *CO. However, it remains a challenge to selectively control CO2RR towards C1 (e.g., CH4) or C2+ (e.g., C2H4 and C2H5OH) through simple interface engineering. Herein, a series of inverse catalysts, composed of CeO2 nanoparticles over Cu substrate (Cu‐CeO2‐x), are subtly designed to tackle the issues. It is verified CeO2 decoration induces highly active Cu/CeO2 interfacial sites that enhance the adsorption and conversion of CO2 and *CO intermediates into C2+ or CH4, while the Cu sites are conducive to *CO generation. With the increase of CeO2 deposition, the C2+ and CH4 selectivity present a volcano‐type and increasing tendency with maximum faradic efficiency of 62.6% and 51.3%, respectively. In‐situ infrared spectroscopy and theoretical calculations reveal that moderate CeO2 loading allows the Cu/CeO2 interfacial sites to cooperate efficiently with the Cu sites to promote the coupling of *CO/*CHO intermediates, thus enhancing the C2+ selectivity. In contrast, excessive CeO2 loading suppresses the C─C coupling but boosts unilaterally the hydrogenation, thus promoting the CH4 production. This work provides effective strategies to regulate the CO2RR selectivity by modulating metal/oxide interfaces.
Moisture Tolerance, Thermally Stable and Light Switchable Adhesives Platform Based on Reversible Redshifted [2 + 2] Photocycloaddition
Authors: Oh Xin Yi , Thi Quyen Vu , Yu Michelle Mei Ling , Izadyar Mohammad , Abedi Syed Ali Abbas , Liu Xiaogang , Truong Vinh X. 
Published: January 2025

AbstractAdhesives are essential in the manufacturing of modern technological devices for various application fields, ranging from transportation to communications, to aerospace and energy generation and storage. Their adhesion strength and stability are critical for the device's development and performance; however, they pose significant challenges to disassembly and recycling. These challenges can be overcome by introducing user‐defined debondable or reversible technologies into structural adhesives. Herein, a new adhesive formulation is reported that can be bonded and detached by blue light (λ = 410–450 nm) and ultraviolet (UV) light (λ = 340–355 nm), respectively. The adhesive platform is prepared by incorporating acrylamidyl pyrene moieties into polyethylenimine, enabling reversible photocrosslinking by redshifted [2 + 2] photocycloaddition. The photophysical properties and switching mechanisms between the monomeric and dimeric forms of the acrylamidyl pyrene are thoroughly investigated by spectroscopic measurements and complemented by comprehensive quantum chemical calculations. Under selective irradiation of low‐energy blue and UV light, the reversible photocycloaddition [2 + 2] facilitates dynamic bonding and debonding of the crosslinked networks, enabling reversible adhesion between a range of solid substrates. Critically, the adhesives are stable at elevated temperatures above 70 °C and in aqueous environments, thereby providing a new strategy for the development of next‐generation debonding on‐demand adhesives.
Print‐and‐Roll Hierarchically Structured Piezoelectric Scaffolds for Exercise‐Driven Cartilage Regeneration
Authors: Lin Zeng , Nan Liping , Lu Hongwei , Wang Zhenwu , Jia Chao , Zhang Zhenrui , Lin Ko‐Chih , Cai Ling , Zhang Jun Yi Joey , Lee Junmin , Kang Heemin , Luo Peng , Zhang Yu Shrike , Wu Xing 
Published: January 2025

AbstractElectrical stimulation (ES) therapy accelerates cartilage healing but faces challenges due to bulky equipment, necessitating the development of a lightweight, implantable, and biocompatible electrical stimulator for improved patient compliance and benefits. Piezoelectric materials have garnered considerable attention for their potential as self‐driven bioelectric therapies to treat osteoarthritis (OA) by providing in situ ES. Accordingly, an ES therapy for exercise‐driven cartilage regeneration based on hierarchically structured piezoelectric scaffolds is proposed. Piezoelectric scaffolds composed of polyvinylidene fluoride/zinc oxide/polycaprolactone (PZP) are fabricated using combined 3D printing and rolling techniques, showing potential to promote cartilage regeneration as a treatment for OA. The developed PZP scaffolds possess favorable electrical signal‐generation capability, good biocompatibility, and strong degradation resistance. Moreover, the PZP scaffolds can promote chondrocyte proliferation, and inhibit inflammation and degradation of the matrix in vitro. Besides, rats with osteochondral defects receiving PZP scaffolds exhibited significant morphological and functional cartilage restoration at 1–2 months after implantation. This study underscores the potential of an efficient and user‐friendly piezoelectric scaffold system to generate electrical signals that promote cartilage regeneration.
Buffer‐Less Gallium Nitride High Electron Mobility Heterostructures on Silicon
Authors: Ghosh Saptarsi , Frentrup Martin , Hinz Alexander M. , Pomeroy James W. , Field Daniel , Wallis David J. , Kuball Martin , Oliver Rachel A. 
Published: January 2025

AbstractThick metamorphic buffers are considered indispensable for III‐V semiconductor heteroepitaxy on large lattice and thermal‐expansion mismatched silicon substrates. However, III‐nitride buffers in conventional GaN‐on‐Si high electron mobility transistors (HEMT) impose a substantial thermal resistance, deteriorating device efficiency and lifetime by throttling heat extraction. To circumvent this, a systematic methodology for the direct growth of GaN after the AlN nucleation layer on six‐inch silicon substrates is demonstrated using metal‐organic vapor phase epitaxy (MOVPE). Crucial growth‐stress modulation to prevent epilayer cracking is achieved even without buffers, and threading dislocation densities comparable to those in buffered structures are realized. The buffer‐less design yields a GaN‐to‐substrate thermal resistance of (11 ± 4) m2 K GW−1, an order of magnitude reduction over conventional GaN‐on‐Si and one of the lowest on any non‐native substrate. As‐grown AlGaN/AlN/GaN heterojunctions on this template show a high‐quality 2D electron gas (2DEG) whose room‐temperature Hall‐effect mobility exceeds 2000 cm2 V−1 s−1, rivaling the best‐reported values. As further validation, the low‐temperature magnetoresistance of this 2DEG shows clear Shubnikov‐de‐Haas oscillations, a quantum lifetime > 0.180 ps, and tell‐tale signatures of spin‐splitting. These results could establish a new platform for III‐nitrides, potentially enhancing the energy efficiency of power transistors and enabling fundamental investigations into electron dynamics in quasi‐2D wide‐bandgap systems.
Directional Freeze‐Casting Cryogel Loaded with Quaternized Chitosan Modified Gallium Metal–Organic Frameworks to Capture and Eradicate the Resistant Bacteria for Guided Regeneration in Infected Bone Defects
Authors: Liu Yihao , Yuan Kai , Lin Yixuan , Yang Yiqi , Kong Weiqing , Shan Jing , Niu Haoyi , Kong Weize , Li Fupeng , Yue Xiaokun , Du Yun , Liang Yakun , Chang Haishuang , Yu Zhifeng , Wang Jinwu , Yang Guangzheng , Cao Lingyan , Huang Kai , Yang Shengbing , Tang Tingting 
Published: January 2025

AbstractAntimicrobial resistance and impaired bone regeneration are the great challenges in treating infected bone defects. Its recurrent and resistant nature, high incidence rate, long‐term hospitalization, and high medical costs have driven the efforts of the scientific community to develop new therapies to improve the situation. Considering the complex microenvironment and persistent mechanisms mediated by resistant bacteria, it is crucial to develop an implant with enhanced osseointegration and sustained and effective infection clearance effects. Here, a positively charged quaternized chitosan (QCS) coated gallium‐based metal–organic framework (GaMOF) is designed, to capture the antibiotic‐resistant bacteria (Methicillin‐resistant Staphylococcus aureus, MRSA) as a “captor”, and rejuvenate Methicillin (Me) via disturbing the tricarboxylic acid (TCA) cycle. Then, a radially oriented porous cryogel loaded with the Me and QCSGaMOF is fabricated by the directional freeze‐casting method. The oriented porous structure has an enhanced osseointegration effect by guiding the ingrowth of osteogenic cells. In vitro and in vivo experiments prove the advantages of as‐prepared Me/QCSGa‐MOF@Cryogel in combating resistant bacteria and guiding bone regeneration in infected bone defects.
Stabilizing Layered Oxide Cathodes Based on Universal Surface Residual Alkali Conversion Chemistry for Rechargeable Secondary Batteries
Authors: Liu Yi‐Feng , Liu Han‐Xiao , Zhu Yan‐Fang , Wang Hong‐Rui , Li Jia‐Yang , Li Yong‐Chun , Hu Hai‐Yan , Wu Zhen‐Guo , Guo Xiao‐Dong , Xiao Yao 
Published: January 2025

AbstractLayered transition metal oxides (LTMOs) are attractive cathode candidates for rechargeable secondary batteries because of their high theoretical capacity. Unfortunately, LTMOs suffer from severe capacity attenuation, voltage decay, and sluggish kinetics, resulting from irreversible lattice oxygen evolution and unstable cathode‐electrolyte interface. Besides, LTMOs accumulate surface residual alkali species, like hydroxides and carbonates, during synthesis, limiting their practical application. Herein, a universal strategy is suggested to in situ convert surface residual alkali into a stable polymer coating layer for LTMOs, thus turning wastes into treasure. The formation process of polymer coating involves NH4F treatment to consume residual alkali, then utilizing generated fluorides to induce the ring‐opening polymerization of tetrahydrofuran. Implementing this strategy to Li‐rich Mn‐based cathode materials (LRM) results in a notable reduction in voltage hysteresis, along with enhanced kinetics and cycling stability in lithium‐ion batteries. With this layer of encapsulation, surface lattice oxygen release and layered‐to‐spinel phase transition of LRM are significantly alleviated with minimal mechanical degradation and surface parasitic reactions. Such strategy can also be applied to air‐sensitive sodium‐rich LTMOs in sodium‐ion batteries, which showcases superior universality. This work might provide a promising solution to overcome residual alkali and interfacial instability issues for LTMOs in practical application.
Local Polarization Piezoelectric Electric Field Promoted Water Dissociation for Hydroxyl Radical Generation under Ambient Humidity Condition
Authors: Liu Yi , Lu Xinyi , Zhang Runzhe , Wang Jian , Zhou Zhikui , Xia Yanyan , Li Ning , Chen Dongyi , Zhou Zhenjian , Fan Xiaoyun 
Published: January 2025

AbstractCombining piezocatalysts with mechanical ball milling for dissociating water to generate hydroxyl radicals (·OH) offers unprecedented opportunities for energy conversion and environmental remediation. However, the in‐depth insights into the relationship between water and local polarization piezoelectric electric field (LPPEF) are currently lacking, in particularly, the ·OH formation mechanism in ball milling driven piezocatalyst system is not systematically elucidated. To this end, the present work constructs a ball milling driven piezoelectric solid/liquid interface between piezoelectric Pb2B5O9Cl (PBOC) and different contents of water to investigate LPPEF initiated catalytic reaction. Results show that PBOC exhibits an excellent Tetrabromobisphenol A (TBBPA) degradation efficiency with a 68.94 and 12.43 times faster rate constant than traditional SiO2 and BaTiO3, respectively. Under ambient humidity condition, the lower energy barrier of water dissociation (0.23 eV) endows ·OH generation more energetically favorable than under the water‐oversaturated condition (0.66 eV), and trace water magnifies the polarizability of [BO3] and [BO4] units in PBOC to initiate an enhanced LPPEF, thus it enhances the trapping of lone pairs electrons in trace adsorbed water by holes to contribute a higher yield of ·OH. This study constructs a highly correlated field‐initiated electron transfer system that provides opportunities for promoting the performance of piezocatalytic materials.
Impermeable and Elastic Polydimethylsiloxane Film by Parylene‐Caulking for Inflatable Soft Devices
Authors: Konishi Satoshi , Suzuki Seiji , Sano Fumiya , Hori Yuto , Katsura Tatsumi , Dogoshi Fumiyoshi 
Published: January 2025

AbstractMoldable polymers, such as polydimethylsiloxane (PDMS), are widely used for microstructures. Various PDMS microstructures have been developed by molding and applied to microfluidic devices. In addition to the moldability of PDMS, its elasticity, optical transparency, gas permeability, and biocompatibility facilitate its utilization in diverse applications. However, the permeability of PDMS makes it unsuitable in cases that require sealing. For instance, inflatable soft devices, including pneumatic balloon actuators, require their constituent material to exhibit both elastic and impermeable features to utilize driving pressure effectively. In this context, this paper presents the poly‐para‐xylylene (parylene)‐caulking of PDMS without losing elasticity of PDMS. Parylene‐caulked PDMS is obtained by etching coated parylene on PDMS. In the context of the previous study on parylene‐caulked PDMS and similar works published recently, updated surface analysis results, and prepolymer ratio dependences are reported in this paper. Surface analysis is performed based on Fourier transform infrared spectrometry and time‐of‐flight secondary ion mass spectrometry is used to examine the presence of parylene on and inside the PDMS superficial layer. Parylene‐caulked PDMS is attractive for inflatable soft actuators. This study believes that these results will potentially contribute to a wide range of applications that require gas impermeability.
Active Nematics Reinforce the Ratchet Flow in Dense Environments Without Jamming
Authors: Yao Yisong , Zhao Zihui , Li He , Zhao Yongfeng , Zhang H. P. , Sano Masaki 
Published: January 2025

AbstractThe past decade witnessed a surge in discoveries where biological systems, such as bacteria or living cells, inherently portray active polar or nematic behavior: they prefer to align with each other and form local order during migration. Although the underlying mechanisms remain unclear, utilizing their physical properties to achieve controllable cell‐layer transport will be of fundamental importance. In this study, the ratchet effect is harnessed to control the collective motion of neural progenitor cells (NPCs) in vitro. NPCs travel back‐and‐forth and do not specify head or tail, and therefore regarded as nematics alike liquid crystals. Ratchet and splay‐shaped confinements are crafted to modulate collective cell dynamics in dense environments, while jamming is not explicitly spotted. The adaptation of an agent‐based simulation further revealed how the ratchet's asymmetry and active forces from nematic order synergistically reinforce the directional cell flow. These findings provide insights into topotaxis in cell populations when restricted to crowded 2D ratchets and the mechanisms that regulate collective behavior of the cells.