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Covalently Bonded Ni sites in Black Phosphorene with Electron redistribution for Efficient Metal‑Lightweighted Water Electrolysis

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Nano-Micro Letters 2024年第6期16卷 233-245页

作者： Wenfang Zhai ya Chen yaoda Liu Yuanyuan Ma Paranthaman Vijayakumar Yuanbin Qin Yongquan Qu Zhengfei Dai state key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China school of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China ssN research Centre SSN College of EngineeringChennaiTamil Nadu 603110India

The metal-lightweighted electrocatalysts for water splitting are highly desired for sustainable and economic hydrogen energy deployments,but *** this work,a low-content Ni-functionalized approach triggers the high capability of black phosphorene(BP)with hydrogen and oxygen evolution reaction(HEr/OEr)*** a facile in situ electro-exfoliation route,the ionized Ni sites are covalently functionalized in BP nanosheets with electron redistribution and controllable metal *** is found that the as-fabricated Ni-BP electrocatalysts can drive the water splitting with much enhanced HEr and OEr *** 1.0 M kOH electrolyte,the optimized 1.5 wt%Nifunctionalized BP nanosheets have readily achieved low overpotentials of 136 mV for HEr and 230 mV for OEr at 10 mA cm^(−2).Moreover,the covalently bonding between Ni and P has also strengthened the catalytic stability of the Ni-functionalized BP electrocatalyst,stably delivering the overall water splitting for 50 h at 20 mA cm^(−2).Theoretical calculations have revealed that Ni–P covalent binding can regulate the electronic structure and optimize the reaction energy barrier to improve the catalytic activity *** work confirms that Ni-functionalized BP is a suitable candidate for electrocatalytic overall water splitting,and provides effective strategies for constructing metal-lightweighted economic electrocatalysts.

关键词： Black phosphorus Water electrolysis Electrocatalyst Electron redistribution Covalent functionalization

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radiative heat transfer analysis of a concave porous fin under the local thermal non-equilibrium condition:application of the clique polynomial method and physics-informed neural networks

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1613-1632页

作者： k.CHANDAN k.kArTHIk k.V.NAGArAJA B.C.PrAsANNAkUMArA r.s.VArUN kUMAr T.MUHAMMAD Amrita school of Artificial Intelligence Amrita Vishwa Vidyapeetham Department of studies in Mathematics Davangere University Computational science Lab Amrita School of EngineeringAmrita Vishwa Vidyapeetham Department of Pure and Applied Mathematics School of Mathematical Sciences Sunway University Department of Mathematics College of Science King Khalid University

The heat transfer through a concave permeable fin is analyzed by the local thermal non-equilibrium(LTNE) model. The governing dimensional temperature equations for the solid and fluid phases of the porous extended surface are modeled, and then are nondimensionalized by suitable dimensionless terms. Further, the obtained nondimensional equations are solved by the clique polynomial method(CPM). The effects of several dimensionless parameters on the fin's thermal profiles are shown by graphical illustrations. Additionally, the current study implements deep neural structures to solve physics-governed coupled equations, and the best-suited hyperparameters are attained by comparison with various network combinations. The results of the CPM and physicsinformed neural network(PINN) exhibit good agreement, signifying that both methods effectively solve the thermal modeling problem.

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Intelligent recognition Using Ultralight Multifunctional Nano‑Layered Carbon Aerogel sensors with Human‑Like Tactile Perception

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Nano-Micro Letters 2024年第1期16卷 172-186页

作者： Huiqi Zhao Yizheng Zhang Lei Han Weiqi Qian Jiabin Wang Heting Wu Jingchen Li Yuan Dai Zhengyou Zhang Chris rBowen ya yang CAs Center for Excellence in Nanoscience Beijing Key Laboratory of Micro‑Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400People’s Republic of China Tencent robotics X Shenzhen 518054People’s Republic of China school of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China Department of Mechanical Engineering University of BathBath BA27AKUK Center on Nanoenergy research School of Physical Science and TechnologyGuangxi UniversityNanning 530004People’s Republic of China

Humans can perceive our complex world through multi-sensory *** limited visual conditions,people can sense a variety of tactile signals to identify objects accurately and ***,replicating this unique capability in robots remains a significant ***,we present a new form of ultralight multifunctional tactile nano-layered carbon aerogel sensor that provides pressure,temperature,material recognition and 3D location capabilities,which is combined with multimodal supervised learning algorithms for object *** sensor exhibits human-like pressure(0.04–100 kPa)and temperature(21.5–66.2℃)detection,millisecond response times(11 ms),a pressure sensitivity of 92.22 kPa^(−1)and triboelectric durability of over 6000 *** devised algorithm has universality and can accommodate a range of application *** tactile system can identify common foods in a kitchen scene with 94.63%accuracy and explore the topographic and geomorphic features of a Mars scene with 100%*** sensing approach empowers robots with versatile tactile perception to advance future society toward heightened sensing,recognition and intelligence.

关键词： Multifunctional sensor Tactile perception Multimodal machine learning algorithms Universal tactile system Intelligent object recognition

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Enhancing reversible hydrogen storage performance of 2LiBH4–MgH2 via in-situ building heterogeneous nucleation sites

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rare Metals 2024年第9期43卷 4367-4376页

作者： Wei Chen ya-Hui sun Tian Xu Xue-Bin Yu Guang-Lin Xia Department of Materials science Fudan University

2LiBH4-MgH2composite is one of the most attractive reactive hydride composites with a theoretic hydrogen capacity of 10.8 wt%.However,the large nucleation restriction of MgB2during the second step of dehydrogenation results in sluggish hydrogen storage kinetics and high operating temperature,which hinders its practical application as on-board hydrogen storage ***,Al3Ti doped Al nanoparticles （AT NPs） are prepared by a facile chemical reduction reaction to improve the hydrogen storage performance of *** the initial H2desorption process,MgAlB4and TiB2that have identical crystal structure and low d-value mismatch with MgB2resulting from the reaction between AT NPs and 2LiBH4-MgH2composite serve as effective nucleation sites for the formation of *** a result,the apparent activation energy of the two-step H2desorption of AT NPs doped 2LiBH4-MgH2composite are notably decreased to （110.0±5.9） and（119.6±1.4） kJ·mol-1,which is 55.5 and 33.5 kJ·mol-1lower than that of the undoped *** importantly,a reversible hydrogen storage capacity of 9.2 wt%after 10cycles of H2desorption and adsorption could be achieved,corresponding to a capacity retention rate of 99%.The building of reactive bimetallic catalyst towards in situ formation of heterogeneous nucleation sites provides a new strategy for improving the hydrogen storage performance of reactive hydride composites.

关键词： Catalytic effects Heterogeneous nucleation reactive hydride composites reversible hydrogen storage

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Honokiol Prevents Intestinal Barrier Dysfunction in Mice with severe Acute Pancreatitis and Inhibits JAk/sTAT1 Pathway and Acetylation of HMGB1

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Chinese Journal of Integrative Medicine 2024年第6期30卷 534-542页

作者： LI Jie CHEN ya-feng GAO Lei LI Yi-jie FENG Dian-xu Department of General surgery Putuo HospitalShanghai University of Traditional Chinese MedicineShanghai200062China

Objective To investigate the effect of honokiol(HON)and the role of high-mobility group protein B1(HMGB1)on the pathogenesis of severe acute pancreatitis(sAP).Methods Thirty mice were numbered according to weight,and randomly divided into 5 groups using a random number table,including control,sAP,sAP and normal saline(sAP+Ns),sAP and ethyl pyruvate(sAP+EP),or sAP+HON groups,6 mice in each *** of pancreas,intestine,and blood were collected 12 h after sAP model induction for examination of pathologic changes,immune function alterations by enzyme linked immunosorbent assay(ELIsA),and Western *** vitro experiments,macrophages were divided into 5 groups,the control,lipopolysaccharide(LPs),LPs+DMsO(DMsO),LPs+anti-HMGB1 monoclonal antibody(mAb),and LPs+HON *** tight connection level was determined by transmission electron microscopy and fluorescein *** location and acetylation of HMGB1 were measured by Western ***,pyridone 6 and silencing signal transducer and activator of the transcription 1(sisTAT1)combined with honokiol were added to determine whether the Janus kinase(JAk)/sTAT1 participated in the regulation of honokiol on *** protein expression levels of HMGB1,JAk,and sTAT1 were detected using Western *** Mice with sAP had inflammatory injury in the pancreas,bleeding of intestinal tissues,and cells with disrupted *** in the sAP+HON group had significantly fewer pathological *** with sAP also had significant increases in the serum levels of amylase,lipase,HMGB1,tumor necrosis factor-α,interleukin-6,diamine oxidase,endotoxin-1,and *** in the sAP+HON group did not show these abnormalities(Pstudies of Caco-2 cells indicated that LPs increased the levels of occludin and claudin-1 as well as tight junction permeability,decreased the levels of junctional adhesion molecule C,and elevated intercellular permeability(Preatment blocked these *** of

关键词： severe acute pancreatitis intestinal barrier dysfunction honokiol high-mobility group protein B1 Januskinase signal transducerand activatorof transcription1

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Advances in memristor based artificial neuron fabrication-materials,models,and applications

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International Journal of Extreme Manufacturing 2024年第1期6卷 27-50页

作者： Jingyao Bian Zhiyong Liu Ye Tao Zhongqiang Wang Xiaoning Zhao ya Lin Haiyang Xu Yichun Liu key Laboratory for UV Light-Emitting Materials and Technology(Northeast Normal University) Ministry of Education5268 Renmin StreetChangchunPeople’s Republic of China

spiking neural network(sNN),widely known as the third-generation neural network,has been frequently investigated due to its excellent spatiotemporal information processing capability,high biological plausibility,and low energy consumption *** to the working mechanism of human brain,the sNN system transmits information through the spiking action of ***,artificial neurons are critical building blocks for constructing sNN in *** are drawing growing attention due to low consumption,high speed,and nonlinearity characteristics,which are recently introduced to mimic the functions of biological *** have proposed multifarious memristive materials including organic materials,inorganic materials,or even two-dimensional *** advantage of the unique electrical behavior of these materials,several neuron models are successfully implemented,such as Hodgkin–Huxley model,leaky integrate-and-fire model and integrate-and-fire *** this review,the recent reports of artificial neurons based on memristive devices are *** addition,we highlight the models and applications through combining artificial neuronal devices with sensors or other electronic ***,the future challenges and outlooks of memristor-based artificial neurons are discussed,and the development of hardware implementation of brain-like intelligence system based on sNN is also prospected.

关键词： artificial neuron memristor memristive materials neuron model micro-nano manufacturing spiking neural network

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Application of Fusobacterium nucleatum as a biomarker in gastrointestinal malignancies

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2271-2283页

作者： Long-Chen Yu ya-Ping Li Yue-Ming Xin Mai Mao ya-Xin Pan Yi-Xuan Qu Zheng-Dong Luo Yi Zhang Xin Zhang Department of Clinical Laboratory Qilu Hospital of Shandong UniversityShandong Engineering Research Center of Biomarker and Artificial Intelligence ApplicationJinan 250012Shandong ProvinceChina

The morbidity and mortality of gastrointestinal(GI)malignancies are among the highest in the world,posing a serious threat to human *** of the insidious onset of the cancer,it is difficult for patients to be diagnosed at an early stage,and it rapidly progresses to an advanced stage,resulting in poor treatment and *** nucleatum(***)is a gram-negative,sporefree anaerobic bacterium that primarily colonizes the oral cavity and is implicated in the development of colorectal,esophageal,gastric,and pancreatic cancers via various intricate *** development in novel research suggests that *** may function as a biomarker in GI *** the abundance of *** in stool,saliva,and serum samples of patients may aid in the diagnosis,risk assessment,and prognosis monitoring of GI *** editorial systematically describes the biological roles and mechanisms of *** in GI malignancies focusing on the application of *** as a biomarker in the diagnosis and prognosis of GI malignancies to promote the clinical translation of *** and GI tumors-related research.

关键词： Gastrointestinal malignancies Fusobacterium nucleatum Biomarker Diagnosis Prognosis

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MgO-attached graphene nanosheet(MgO@GNs)reinforced magnesium matrix nanocomposite with superior mechanical,corrosion and biological performance

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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2062-2076页

作者： s.Abazari A.shamsipur H.r.Bakhsheshi-rad M.s.soheilirad F.khorashadizade s.s.Mirhosseini Department of Materials and Metallurgical Engineering Amirkabir University of TechnologyTehran ***Iran Iranian National standards Organization of Hormozgan HormozganIran Advanced Materials research Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran Department of Materials and Metallurgical Engineering Iran University of Science and TechnologyTehranIran

Magnesium(Mg)alloys are gaining great consideration as body implant materials due to their high biodegradability and ***,they suffer from low corrosion resistance and antibacterial *** this research,semi-powder metallurgy followed by hot extrusion was utilized to produce the magnesium oxide@graphene nanosheets/magnesium(MgO@GNs/Mg)composite to improve mechanical,corrosion and cytocompatibility *** have revealed that the incorporation of MgO@GNs nanohybrids into Mg-based composite enhanced microhardness and compressive *** vitro,osteoblast cell culture tests show that using MgO@GNs nanohybrid fillers enhances osteoblast adhesion and apatite *** presence of MgO@GNs nanoparticles in the composites decreased the opening defects,micro-cracks and micro-pores of the composites thus preventing the penetration of the corrosive solution into the *** demonstrated that the MgO@GNs/Mg composite possesses excellent antibacterial properties because of the combination of the release of MgO and physical damage to bacterium membranes caused by the sharp edges of graphene nanosheets that can effectively damage the cell wall thereby facilitating penetration into the bacterial lipid ***,the MgO@GNs/Mg composite with high mechanical strength,antibacterial activity and corrosion resistance is considered to be a promising material for load-bearing implant applications.

关键词： metal matrix composites MgO@GNs nanohybrid strengthening mechanisms antibacterial activity biocompatibility

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Engineering FeOOH/Ni(OH)_(2) heterostructures on Ni_(3)s_(2)surface to enhance seawater splitting

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rare Metals 2024年第5期43卷 1989-1998页

作者： Chen yang ya-Dong Li Li-Juan Cao Xi-Long Wang Han-Pu Liang Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China Center of Materials science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China sino-Danish College University of Chinese Academy of SciencesBeijing 100049China

The construction of highly stable and efficient electrocatalysts is desirable for seawater splitting but remains challenging due to the high concentration of Cl-in ***,FeOOH/Ni(OH)_(2)heterostructure supported on Ni_(3)s_(2)-covered nickel foam(Fe–Ni/Ni_(3)s_(2)/NF)was fabricated by hydrothermal and etching methods,as well as anodic oxidation *** electronic structure of FeOOH and Ni(OH)_(2)could be modulated after depositing FeOOH nanoparticles on Ni(OH)_(2)nanosheet,which greatly boosted the catalytic *** the catalyst used as an electrode for oxygen evolution reaction(OEr),it needed low overpotentials of 266 and 368 m V to achieve current densities of 100 and 800 m A·cm^(-2),respectively,in 1 mol·L^(-1)kOH+seawater *** can operate continuously at 100 m A·cm^(-2)for 400 h without obvious ***,in situ generated sO_(4)^(2-)from inner Ni_(3)s_(2)during electrolysis process would accumulate on the surface of active sites to form passivation layers to repel Cl^(-),which seemed to be responsible for superior *** study not only synthesizes an OEr catalyst for highly selective and stable seawater splitting,but also gives a novel approach for industrial hydrogen production.

关键词： Anodic oxidation Heterostructure Oxygen evolution reaction seawater splitting

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Low-molecular-weight heparin and preeclampsia—does the sword cut both ways?Three case reports and review of literature

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World Journal of Clinical Cases 2024年第9期12卷 1634-1643页

作者： Dan shan Tao Li Xi Tan ya-Yi Hu Department of Obstetrics and Gynecology West China Second University HospitalSichuan UniversityChengdu 610000Sichuan ProvinceChina key Laboratory of Birth Defects and related Diseases of Women and Children Sichuan UniversityMinistry of EducationChengdu 610000SichuanChina

BACkGrOUND Low-molecular-weight heparins(LMWH)are the most commonly used anticoagulants during *** is considered to be the drug of choice due to its safety in not crossing *** the beneficial effect in the improvement of microcirculation,prophylactic application of LMWH in patients with preeclampsia became a ***,the bleeding risk related with LMWH in preeclampsia patients has seldomly been *** current study aimed to identify the potential risks regarding LMWH application in patients with *** sUMMArY Herein we present a case series of three pregnant women diagnosed with preeclampsia on LMWH therapy during *** the cases experienced catastrophic hemorrhagic *** reviewing the twenty-one meta-analyses,the bleeding risk related with LMWH seems *** one study analyzed the bleeding risk of LMWH and found a significantly higher risk of developing PPH in women receiving *** studies reported minor bleeding risks,none of these were serious enough to stop LMWH *** of bleeding either from uterus or from intrabdominal organs in preeclampsia patients on LMWH therapy should not be *** management of blood pressure even after delivery and homeostasis suture in surgery are *** Consideration should be given to the balance between benefits and risks of LMWH in patients with preeclampsia.

关键词： Pregnancy Preeclampsia Low-molecular-weight heparin Hemorrhage Case report

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