bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adaptive quantized tracking control for switched nonlinear systems with hysteresis nonlinearity using a novel predefined‐time stability criterion
Authors: Jin Ling , Su Lei , Lü Shaoyu , Wang Kang , Wang Jing 
Published: August 2024

AbstractThis article investigates the adaptive tracking control problem for switched nonlinear systems with input quantization and hysteresis nonlinearity. First, the hysteresis nonlinear phenomenon is considered and the Bouc–Wen hysteresis model is employed to address the complexities of controller design. Considering the time‐sampling mechanism may lead to the wastage of communication resources, a hysteresis quantizer is introduced to address this issue. Additionally, a command filter is constructed to relieve complexity explosion issues encountered during the backstepping process. Subsequently, compared with the conventional predefined‐time lemma, a novel predefined‐time lemma is proposed which can effectively adjust system performance even if the predefined‐time parameter is determined. In this case, a novel adaptive predefined‐time control scheme is devised by considering hysteresis properties and input quantization via the application of backstepping, which can track the reference signals within the predefined‐time frame. Finally, the flexibility and effectiveness of the proposed strategy are elaborated through numerical and practical examples.
Augmented Tactile Perception of Robotic Fingers Enabled by AI‐Enhanced Triboelectric Multimodal Sensors
Authors: Zhao Xi , Sun Zhongda , Lee Chengkuo 
Published: August 2024

AbstractRecent developments in robotics increasingly highlight the importance of sensing technology, especially tactile perception, in enabling robots to effectively engage with their environment and interpret physical interactions. Due to power efficiency and low cost, the triboelectric mechanism has been frequently studied for measuring pressure and identifying materials to enhance robot perception. Nevertheless, there has been limited exploration of using the triboelectric effect to detect curved surfaces, despite their prevalence in daily lives. Here, a triboelectric multimodal tactile sensor (TMTS) of multilayered structural design is proposed to recognize distinct materials, curvatures, and pressure simultaneously, thus decoupling different modalities to enable more accurate detection. By attaching sensors to robotic fingertips and leveraging deep learning analytics, the quantitative curvature measurement provides more precise insights into an object's detailed geometric characteristics rather than merely assessing its overall shape, hence achieving automatic recognition of 12 grasped objects with 99.2% accuracy. The sensor can be further used to accurately recognize the softness of objects under different touch gestures of a robotic hand, achieving a 94.1% accuracy, demonstrating its significant potential for wide‐ranging applications in a future robotic‐enabled intelligent society.
Leakage‐Free and Non‐Flammable High‐Safety Li Metal Battery Using 85.3 wt.% Multifunctional Organic Lithium Salt as Quasi‐Solid Electrolyte
Authors: Liu Yijing , Qiao Sibo , Lin Weichao , Bao Lixia , Hu Jinrui , Liu Pengpeng , Liu Shu , Wang Jiliang 
Published: August 2024

AbstractSafety issues of lithium metal batteries caused by leakageable, inflammable, and unstable electrolytes and lithium dendrites are a major concern worldwide. Herein, an ultra‐concentrated electrolyte composed of 85.3 wt.% of a novel phosphate quaternary ammonium lithium salt (PQ‐3Li) in fluoroethylene carbonate is prepared, labeled as CPQE. CPQE reveals an exceptional ionic conductivity (0.32 × 10−3 S cm−1), a high lithium transference number (0.66), an electrochemical stability window above 6 V, and a superb fire resistance. Li|CPQE|Li cells show stable cycling performance without lithium dendrites for 1000 h, and a solid‐electrolyte‐interface layer with an inorganics‐rich inner layer and an organics‐rich outer layer is confirmed using computation simulation, electron probe microanalysis, and X‐ray photoelectron spectroscopy. Li|CPQE|NCM cells present a discharge capacity of 162 mAh g−1 at 0.1 C, and a Coulombic efficiency of up to 99%. A commercial LED bulb can be lighted up by the Li|CPQE|NCM cell for at least 1 h without performance deterioration while prolonging the cycling time. The fabricated CPQE‐based pouch cells own terrific safety and power supply capacity. No leakage, thermal runaway, combustion, or explosion behavior is detected during the nailing penetration test, implying large potential applications for developing the next generation of high‐safety lithium batteries.
Synergism of Covalent Linkage and Bimetallic Atom Catalysis Enables High‐Performance Cathodes for Li–S Batteries Under High Sulfur Loading and Low‐Temperature Conditions
Authors: Li Zhenfeng , Zhang Meng , Liu Yu , Cao Yong , Zeng Qinghui , Mao Qianjiang , Lu Zhihua , Jiang Yuchen , Chen Anqi , Guan Jiazhu , Wang Honghao , Chen Lin , Li Rongzheng , Zhou Yajuan , Wang Jiancheng , Liu Xiangfeng , Li Xiaoyi , Zhang Liaoyun 
Published: August 2024

AbstractLithium sulfur batteries (Li–S) with high theoretical specific capacity have aroused great interests in the field of energy storage. However, shuttle effect and slow conversion kinetics of lithium polysulfides seriously affect its practical application. Particularly, Li–S batteries face significant challenges in achieving good long‐term cycling performance under high sulfur loading and low temperatures. Herein, a kind of bimetallic organosulfur cathode namely Porphyrin(Cu/Fe)‐S‐rGO with high sulfur content (85 wt.%) which benefits from the synergy of the bimetallic atom catalysis and covalently anchored sulfur is designed and prepared for the first time. The results of electrochemical measurements and calculations suggest that the cells with Porphyrin(Cu/Fe)‐S‐rGO cathode exhibit better performance than the cells with corresponding blending cathode Porphyrin(Cu/Fe)/S/rGO and the cell with monometallic cathode Porphyrin(Cu)/S/rGO). Remarkably, the cell with Porphyrin(Cu/Fe)‐S‐rGO cathode can stably cycle for 200 cycles with a maximum capacity of 5.92 mAh cm−2 even under a high sulfur loading of 7.79 mg cm−2 at −20 °C. This study believes that the method of introducing covalent linkages into bimetallic systems offers an innovative solution for the design of high‐performance Li–S batteries under high sulfur loading and low‐temperature conditions.
Anti‐Cytokine Active Immunotherapy Based on Supramolecular Peptides for Alleviating IL‐1β‐Mediated Inflammation
Authors: Shetty Shamitha , Wu Yaoying , Lloyd Christopher Z. , Mehta Nalini , Liu Yining , Woodruff Mia E. , Segura Tatiana , Collier Joel H. 
Published: August 2024

AbstractIL‐1β is a principal proinflammatory cytokine underlying multiple local and systemic chronic inflammatory conditions including psoriasis, rheumatoid arthritis, inflammatory bowel disease, and type 2 diabetes. Passive immunotherapies and biologic drugs targeting IL‐1β, while offering significant clinical benefit, nevertheless have limitations such as significant non‐response rates, induction of anti‐drug antibodies, and high costs. Here, an active immunotherapy raising antibody responses against IL‐1β employing self‐assembling peptide nanofibers is described. The nanofibers contain defined quantities of B‐cell epitopes from IL‐1β and exogenous T helper epitopes and employ the Q11 self‐assembling peptide platform. Without adjuvant, the nanofibers raised durable anti‐IL‐1β antibody responses that inhibit IL‐1β activity in vitro and in vivo. In a mouse model of imiquimod‐induced psoriasis, prophylactic immunizations with the nanofibers diminished symptoms of epidermal thickening. This therapeutic effect is associated with biasing the immune response toward an anti‐inflammatory IgG1/Th2 phenotype and a lowered expression of proinflammatory genes in the skin. Further, anti‐IL‐1β nanofibers induced therapeutic immunosuppressive CD62L+ Treg cells. This technology represents a potential alternative for passive immunotherapies and other biologics for treating chronic inflammatory conditions.
Nanoengineered Nonenzymatic Paper‐Based Fluorescent Platform for Pre‐Dilution‐Free and Visual Real‐Time Home Monitoring of Urea for Early Warning of Abnormal Nitrogen‐Based Unhealthy Issues
Authors: Chen Lijuan , Luo Xiaomin , Wang Xuechuan , Wang Yitong , Yang Hao , Zhao Suqiu , Zhang Qian , Liu Xinhua , Jiang Huie 
Published: August 2024

AbstractDistorted urea levels indicate several liver, kidney, or metabolic diseases; however, traditional clinical urea detection relies on urease‐based methods enslaved to well‐known limitations of high‐price, unstable properties, complicated sample pretreatment and analysis procedures, and difficult visual real‐time monitoring. Herein, nonenzymatic paper‐based fluorescent materials (UFP‐BP) are strategically integrated with an on‐demand fluorescent‐sensor (UFP) self‐aggregated nanoparticle on commercial filter paper for pre‐dilution‐free and visual real‐time urea monitoring. The UFP is synthesized and self‐aggregated into the fluorescent nanoparticles for selective urea recognition. Then, the nanoparticles are interstitially loaded on filter paper to nanoengineer the UFP‐BP, achieving selective quantitative urea detection in the normal concentration range (10–1000 mm). UFP and UFP‐BP can successfully monitor urea levels in real rat urine, artificial simulants, and milk. The proposed sensing platform, integrated with smartphones, offers accurate, quantitative, nonenzymatic, noninvasive, pre‐dilution‐free, on‐site, rapid, low‐cost, easy‐to‐operate, real‐time visual urea detection in food samples and human body fluids. The designed sensing system can provide early warnings of abnormal nitrogen‐based health issues.
Coexistence and Interplay of Two Ferroelectric Mechanisms in Zn1‐xMgxO
Authors: Yang Jonghee , Ievlev Anton V. , Morozovska Anna N. , Eliseev Eugene A. , Poplawsky Jonathan D , Goodling Devin , Spurling Robert Jackson , Maria Jon‐Paul , Kalinin Sergei V. , Liu Yongtao 
Published: August 2024

AbstractFerroelectric materials promise exceptional attributes including low power dissipation, fast operational speeds, enhanced endurance, and superior retention to revolutionize information technology. However, the practical application of ferroelectric‐semiconductor memory devices has been significantly challenged by the incompatibility of traditional perovskite oxide ferroelectrics with metal‐oxide‐semiconductor technology. Recent discoveries of ferroelectricity in binary oxides such as Zn1‐xMgxO and Hf1‐xZrxO have been a focal point of research in ferroelectric information technology. This work investigates the ferroelectric properties of Zn1‐xMgxO utilizing automated band excitation piezoresponse force microscopy. This findings reveal the coexistence of two ferroelectric subsystems within Zn1‐xMgxO. A “fringing‐ridge mechanism” of polarization switching is proposed that is characterized by initial lateral expansion of nucleation without significant propagation in depth, contradicting the conventional domain growth process observed in ferroelectrics. This unique polarization dynamics in Zn1‐xMgxO suggests a new understanding of ferroelectric behavior, contributing to both the fundamental science of ferroelectrics and their application in information technology.
Single‐Step Inkjet Printing PDMS Microlens Arrays for Tunable‐Focus Artificial Compound Eyes
Authors: Zhou Shiyu , Guo Hao , Qian Bo , Li Lingying , Shi Xuejun 
Published: August 2024

AbstractFlexible, tunable‐focus artificial compound eyes (ACEs) have been extensively studied due to their large field of view (FOV), variable focal length, and large depth of field. The fabrication of flexible polydimethylsiloxane (PDMS) microlens arrays (MLAs) is a key issue for this system. Due to the difficulty of directly precision‐machining PDMS, PDMS MLAs typically need molds, which involve complex, costly, and hard‐to‐control methods like laser fabrication and lithography. In this paper, a moldless, single‐step inkjet printing method for PDMS MLAs is proposed. By optimizing the rheological properties of the PDMS ink and adjusting printing waveforms, voltages, and frequencies, this study achieves, for the first time, large‐scale inkjet printing fabrication of PDMS MLAs. The surface morphologies of the microlenses are uniformly consistent, resembling spherical caps. Subsequently, the optimized printed PDMS MLA film is bonded to a microfluidic chip to fabricate a hydraulically driven, variable‐focus ACE with the FOV tunable between 0° and 140° and the focal length tunable from 6 mm to infinity. The ACE is demonstrated to image the objects at various distances by altering the volume of the injected liquid and possessing good optical imaging quality.
Colloidal Semiconductor Quantum Well Supraparticles as Low‐Threshold and Photostable Microlasers
Authors: Alves Pedro Urbano , Quinn Gemma , Strain Michael J. , Durmusoglu Emek Goksu , Sharma Manoj , Demir Hilmi Volkan , Edwards Paul R. , Martin Robert W. , Dawson Martin D. , Laurand Nicolas 
Published: August 2024

AbstractThis study introduces and compares the lasing performance of micron‐sized and sphere‐shaped supraparticle (SP) lasers fabricated through bottom‐up assembly of II‐VI semiconductor colloidal quantum wells (CQWs) with their counterparts made of quantum dots (CQDs). CQWs consist of a 4‐monolayers thick CdSe core and an 8‐monolayers thick CdxZn1‐xS shell with a nominal size of 14 × 15 × 4.2 nm, and CQDs of CdSxSe1‐x/ZnS with 6 nm diameter. SPs are optically characterized with a 0.76 ns pulse laser (spot size: 2.88 × 10−7 cm2) at 532 nm, and emit in the 620–670 nm spectral range. Results show that CQW SPs have lasing thresholds twice as low (0.1–0.3 nJ) as CQD SPs (0.3–0.6 nJ), and stress tests using a constant 0.6 nJ optical pump energy demonstrate that CQW SPs withstand lasing emission for longer than CQD SPs. Lasing emission in CQW and CQD SPs under continuous operation yields half‐lives of τCQW SP ≈150 min and τCQD SP ≈22 min, respectively. The half‐life of CQW SPs is further extended to τQW ≈385 min when optically pumped at 0.5 nJ. Such results compare favorably to those in the literature and highlight the performance of CdSe‐based CQW SPs for laser applications.
Exploiting Cross‐Responsiveness of Fluorescent Interpenetrated Zirconium–Organic Frameworks Integrated in Polymeric Membranes as a Multi‐Analyte Gas Sensor Array
Authors: Moscoso Francisco G. , Rodríguez‐Lucena David , Romero‐Guerrero Juan J. , Hamad Said , Carrillo‐Carrión Carolina , Pedrosa José M. 
Published: August 2024

AbstractIn this paper, a series of Zr metal‐organic frameworks, whose hexanuclear clusters of Zr are connected with luminescent rodlike dicarboxylic acids, are used for the construction of a sensor array to selectively detect various analyte vapors. The chemical functionalization of the ligand (HOOC[PE‐aryl‐EP]COOH) (which alternates phenylene(P) and ethynylene(E) units) through the aryl core, is focused on obtaining six Porous Interpenetrated Zirconium‐Organic Frameworks (PIZOFs) with distinctive luminescent properties. Particularly, the synthesis of two new ligands (aryl = nitrobenzene;metal‐organic frameworks aryl = pyrazine) enabled the preparation of new PIZOFs (UPO‐1 and UPO‐2) with submicron sizes, thanks to the use of a microwave‐assisted synthetic method. The fluorescence properties of these two new PIZOFs, along with four others already reported, are thoroughly evaluated and noticeable changes are observed in their optical properties based on variations in the aryl core of the ligands. Furthermore, the presence of various volatile analyte vapors particularly modified their characteristic emission, resulting in multiple optical responses that are combined to achieve selectivity in detecting these analytes. Specifically, the construction of a fluorescent sensor array is proposed, incorporating the six PIZOFs into polyvinylidene‐fluoride (PVDF) films, capable of producing unique identification patterns for each analyte by leveraging the cross‐responsiveness of these sensing materials.
Ferroelectric‐Controllable Optoelectronic Performance in 2D‐Metallic SnSe/Sc0.25Al0.75N Heterostructure
Authors: Xu Bingqian , Du Ruofan , Wang Zekai , Li Xiaohui , Xu Qinwen , Ren Yuqi , Hu Chenxi , Song Luying , Chen Xiang , Peng Yanan , Liu Yan , Shi Jianping , Sun Chengliang , Cai Yao , Guo Shishang 
Published: August 2024

AbstractScandium‐doped aluminium nitride (ScxAl1‐xN)has made extensive progress in its applicationfor non‐volatile ferroelectric field effect transistors (FeFETs). However, ScAlN FeFET studies have mainly focused on memory devices based on n‐ and p‐type channel. Photodetectors based on ScAlN ferroelectric gatehave rarely been reported. Here, a FeFET device consisting of a metallic channel material, SnSe, and a ferroelectric gate material, Sc0.25Al0.75N is presented. Due to the different energy levels of Sc0.25Al0.75N and SnSe, a potential barrier is formed at the interface between them, which regulates the dark current and photoresponsivity of the heterostructure; meanwhile, the interfacial potential barrier is changed under three polarization states of Sc0.25Al0.75N. As a result, dark current of the device with Sc0.25Al0.75N gate is reduced by 104, on/off ratio is increased by 40 times, and the photoresponsivity is enhanced to 1 × 104 A W−1 compared with that of SiO2 gate; Moreover, on/off ratio of the devicesunder the positively polarized state is increased by nearly 103 underillumination; under the negatively polarized state, photoresponsivity reaches 5.4 × 105 and 3.1 × 104 A W−1 under illumination. This work demonstrates the feasibility of Sc0.25Al0.75N applied in FeFET photodetectors and opens up the possibility of developing ScAlN‐based optoelectronic devices.
Infection burden, periodontal pathogens, and their interactive association with incident all‐cause and Alzheimer's disease dementia in a large national survey
Authors: Beydoun May A. , Beydoun Hind A. , Hedges Dawson W. , Erickson Lance D. , Gale Shawn D. , Weiss Jordan , El‐Hajj Ziad W. , Evans Michele K. , Zonderman Alan B. 
Published: August 2024

AbstractINTRODUCTIONRelationships and interplay of an infection burden (IB) and periodontal pathogens or periodontal disease (Pd) markers with Alzheimer's disease (AD) and all‐cause dementia among US adults were examined.METHODSLess than or equal to 2997 participants from the National Health and Nutrition Survey III were linked to CMS‐Medicare [≥45 years (1988‐1994); ≤30 years follow‐up].RESULTSHepatitis C (hazard ratio = 3.33, p = 0.004) and herpes simplex virus 2 were strongly associated with greater all‐cause dementia risk. Porphyromonas gingivalis and Streptococcus oralis were associated with greater AD risk at higher IB. The red‐green periodontal pathogen cluster coupled with higher IB count increased the risk of all‐cause dementia among minority racial groups. Pocket probing depth associated with dementia risk at lower IB in the overall sample.DISCUSSIONSelect viruses and bacteria were associated with all‐cause and AD dementia, while the IB interacted with Pd markers in relation to these outcomes.Highlights
Interplay of infection burden (IB) and periodontal disease with dementia was tested.
≤2997 participants from NHANES III were linked to Medicare.
Hepatitis C and herpes simplex virus 2 strongly associated with dementia risk.
Tetanus sero‐positivity increased Alzheimer's disease (AD) risk.
Porphyromonas gingivalis and Streptococcus oralis associated with AD at higher IB.
Red‐green periodontal cluster at high IB, increased dementia in racial minorities.
Pocket probing depth associated with dementia risk at lower IB.
Exocyclic and Linker Editing of Lys63‐linked Ubiquitin Chains Modulators Specifically Inhibits Non‐homologous End‐joining Repair
Authors: Saha Abhishek , Bishara Laila A. , Saed Yakop , Vamisetti Ganga B. , Mandal Shaswati , Suga Hiroaki , Ayoub Nabieh , Brik Ashraf 
Published: August 2024

AbstractDespite the great advances in discovering cyclic peptides against protein targets, their reduced aqueous solubility, cell permeability, and activity of the cyclic peptide restrict its utilization in advanced biological research and therapeutic applications. Here we report on a novel approach of structural alternation of the exocyclic and linker parts that led to a new derivative with significantly improved cell activity allowing us to dissect its mode of action in detail. We have identified an effective cyclic peptide (CP7) that induces approximately a 9‐fold increase in DNA damage accumulation and a remarkable increase in apoptotic cancer cell death compared to the reported molecule. Notably, treating cells with CP7 leads to a dramatic decrease in the efficiency of non‐homologous end joining (NHEJ) repair of DNA double‐strand breaks (DSBs), which is accompanied by an increase in homologous recombination (HR) repair. Interestingly, treating BRCA1‐deficient cells with CP7 restores HR integrity, which is accompanied by increased resistance to CP7. Additionally, CP7 treatment increases the sensitivity of cancer cells to ionizing radiation. Collectively, our findings demonstrate that CP7 is a selective inhibitor of NHEJ, offering a potential strategy to enhance the effectiveness of radiation therapy.
Simultaneous In Vivo Imaging of Neutrophil Elastase and Oxidative Stress in Atherosclerotic Plaques Using a Unimolecular Photoacoustic Probe
Authors: Ma Yuan , Cao Hui , Chen Baode , Xu Xinyu , Zhang Qingpeng , Chen Haoming , Zhang Xiao‐Bing , Song Guosheng 
Published: August 2024

AbstractAtherosclerosis, a major global health concern with high morbidity and mortality rates, involves complex interactions of chronic inflammation, oxidative stress, and proteolytic enzymes. Conventional imaging methods struggle to capture the dynamic biochemical processes in atherosclerotic plaques. Here, we introduce a novel unimolecular photoacoustic probe (UMAPP) designed with specific binding sites for neutrophil elastase (NE) and the redox pair O2⋅−/GSH, enabling real‐time monitoring of oxidative stress and activated neutrophils in plaques. UMAPP, comprising a boron‐dipyrromethene (BODIPY) core linked to a hydrophilic NE‐cleavable tetrapeptide and dual oxidative stress‐responsive catechol moieties, facilitates NE‐mediated modulation of photoinduced electron transfer impacting photoacoustic intensity at 685 nm (PA685). Furthermore, oxidation and reduction of catechol groups by O2⋅− and GSH induce reversible, ratiometric changes in the photoacoustic spectrum (PA745/PA685 ratio). Initial UMAPP applications successfully distinguished atherosclerotic and healthy mice, evaluated pneumonia‘s effect on plaque composition and verified the probe‘s effectiveness in drug‐treatment studies by detecting molecular alterations before visible histopathological changes. The integrated molecular imaging capabilities of UMAPP offer promising advancements in atherosclerosis diagnosis and management, enabling early and accurate identification of vulnerable plaques.