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An unexpected approach to enhance specific surface area and mesopore amount of polyaniline by Zn doping

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Rare Metals 2024年第9期43卷 4585-4594页

作者： zhi-Da zhu Yu-Zhe Han Xiao-Bi Jing School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

Poly-p-anisidine could be easily fabricated via the oxidative polymerization reaction of p-anisidine using H_(2)O_(2)as the green *** was unexpectedly found that zinc doping could significantly improve the adsorption ability of the material versus heavy metals such as Pb,Cu,Pd,Ag and *** of nitrogen adsorption–desorption experiments demonstrated that Zn doping could enhance the specific surface area and mesopore amount of the prepared material,which might facilitate its absorption to *** work not only provides a novel material for the treatment of heavy metal-polluted water but also leads to a nice mesoporous catalyst support for environment protection and organic synthesis,*** Zn-doped poly-panisidine can be employed as the catalyst support to prepare Cu@PANI-OMe/Zn or Pd@PANI-OMe/Zn for the oxidative degradation reaction of phenol or Suzuki–Miyaura coupling reactions,*** discloses a new strategy for fabricating the mesoporous polyaniline materials with profound application potential.

关键词： Surfaces Porous materials Rare metal concentration Adsorption Catalysis

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Silvery fullerene in Ag102 nanosaucer

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National Science Review 2024年第7期11卷 158-167页

作者： zhi Wang Yuchen Wang Chengkai Zhang Yan-Jie zhu Ke-peng Song Christine M.Aikens Chen-Ho Tung Di Sun School of Chemistry and Chemical Engineering Shandong University Department of Chemistry Kansas State University

Despite the discovery of a series of fullerenes and a handful of noncarbon clusters with the typical topology of Ih-C60, the smallest fullerene with a large degree of curvature, C20, and its other-element counterparts are difficult to isolate experimentally. In coinage metal nanoclusters（NCs）, the first all-gold fullerene, Au32, was discovered after a long-lasting pursuit, but the isolation of similar silvery fullerene structures is still challenging. Herein, we report a flying saucer-shaped 102-nuclei silver NC（Ag102） with a silvery fullerene kernel of Ag32, which is embraced by a robust cyclic anionic passivation layer of（KPO4）10. This Ag32kernel can be viewed as a non-centered icosahedron Ag12encaged into a dodecahedron Ag20, forming the silvery fullerene of Ag12@Ag20. The anionic layer（KPO4）10is located at the interlayer between the Ag32kernel and Ag70shell, passivating the Ag32silvery fullerene and templating the Ag70shell. The ~tBuPhS-and CF3COO-ligands on the silver shell show a regioselective arrangement with the 60 ~tBuPhS-ligands as expanders covering the upper and lower of the flying saucer and 10 CF3COO-as terminators neatly encircling the edges of the structure. In addition, Ag102 shows excellent photothermal conversion efficiency（η） from the visible to near-infrared region（η = 67.1% ± 0.9% at 450 nm, 60.9% ± 0.9% at 660 nm and 50.2% ± 0.5% at 808 nm）, rendering it a promising material for photothermal converters and potential application in remote laser ignition. This work not only captures silver kernels with the topology of the smallest fullerene C20, but also provides a pathway for incorporating alkali metal（M） into coinage metal NCs via M-oxoanions.

关键词： silvery fullerene >Ag102 nanosaucer cyclic anionic passivation layer photothermal conversion DFT calculation

In vivo imaging reveals a synchronized correlation among neurotransmitter dynamics during propofol and sevoflurane anesthesia

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Zoological Research 2024年第3期45卷 679-690页

作者： Gao-Lin Qiu Li-Jun peng peng Wang zhi-Lai Yang Ji-Qian Zhang Hu Liu Xiao-Na zhu Jin Rao Xue-Sheng Liu Department of Anesthesiology First Affiliated Hospital of Anhui Medical UniversityHefeiAnhui 230022China School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China

General anesthesia is widely applied in clinical ***,the precise mechanism of loss of consciousness induced by general anesthetics remains ***,we measured the dynamics of five neurotransmitters,includingγ-aminobutyric acid,glutamate,norepinephrine,acetylcholine,and dopamine,in the medial prefrontal cortex and primary visual cortex of C57BL/6 mice through in vivo fiber photometry and genetically encoded neurotransmitter sensors under anesthesia to reveal the mechanism of general anesthesia from a neurotransmitter *** revealed that the concentrations of γ-aminobutyric acid,glutamate,norepinephrine,and acetylcholine increased in the cortex during propofol-induced loss of *** levels did not change following the hypnotic dose of propofol but increased significantly following surgical doses of propofol ***,the concentrations of the five neurotransmitters generally decreased during sevoflurane-induced loss of ***,the neurotransmitter dynamic networks were not synchronized in the non-anesthesia groups but were highly synchronized in the anesthetic *** findings suggest that neurotransmitter dynamic network synchronization may cause anesthetic-induced loss of consciousness.

关键词： General anesthesia Loss of consciousness In vivo neurotransmitter imaging Medial prefrontal cortex Primary visual cortex

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Long-term clinical outcomes and health-related quality of life in patients with isolated methylmalonic acidemia after liver transplantation:experience from the largest cohort study in China

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World Journal of Pediatrics 2024年第8期20卷 809-821页

作者： Yi-Zhou Jiang Guang-peng Zhou Lin Wei Wei Qu zhi-Gui Zeng Ying Liu Yu-Le Tan Jun Wang zhi-Jun zhu Li-Ying Sun Department of Critical Liver Diseases Liver Research CenterBeijing Friendship HospitalCapital Medical UniversityNo.101 Lu Yuan Dong RoadTong-Zhou DistrictBeijing110112China Liver Transplantation Center National Clinical Research Center for Digestive DiseasesBeijing Friendship HospitalCapital Medical UniversityBeijingChina Clinical Center for Pediatric Liver Transplantation No.101 Lu Yuan Dong RoadTong-Zhou DistrictCapital Medical UniversityBeijing110112China

Background Liver transplantation(LT)has been proposed as a viable treatment option for selected methylmalonic acidemia(MMA)***,there are still controversies regarding the therapeutic value of LT for *** systematic assessment of health-related quality of life(HRQoL)-targeted MMA children before and after LT is also *** study aimed to comprehensively assess the long-term impact of LT on MMA,including multiorgan sequelae and HRQoL in children and *** We retrospectively evaluated 15 isolated MMA patients undergoing LT at our institution between June 2013 and March ***-and post-transplant data were compared,including metabolic profiles,neurologic consequences,growth parameters,and *** further assess the characteristics of the HRQoL outcomes in MMA,we compared the results with those of children with biliary atresia(BA).Results All patients had early onset MMA,and underwent LT at a mean age of 4.3 *** 1.3–8.2 years of follow-up,the patient and graft survival rates were 100%.Metabolic stability was achieved in all patients with liberalized dietary protein *** was a significant overall improvement in height Z scores(P=0.0047),and some preexisting neurological complications remained stable or even improved after *** the Pediatric Quality of Life Inventory(PedsQL™)generic core scales,the mean total,physical health,and psychosocial health scores improved significantly posttransplant(P<0.05).In the family impact module,higher mean scores were noted for all subscales post-LT,especially family function and daily activities(P<0.01).However,the total scores on the generic core scales and transplant module were significantly lower(Cohen’s d=0.57–1.17)when compared with BA *** particular,social and school functioning(Cohen’s d=0.86–1.76),treatment anxiety,and communication(Cohen’s d=0.99–1.81)were far behind,with a large effect *** This large single-center study of the mainland of China sh

关键词： Health-related quality of life.Inborn error of metabolism Isolated methylmalonic acidemia Liver transplantation:Outcomes

Software Vulnerability Mining and Analysis Based on Deep Learning

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Computers, Materials & Continua 2024年第8期80卷 3263-3287页

作者： Shibin Zhao Junhu zhu Jianshan peng State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou450001China

In recent years,the rapid development of computer software has led to numerous security problems,particularly software *** flaws can cause significant harm to users’privacy and *** security defect detection technology relies on manual or professional reasoning,leading to missed detection and high false detection *** intelligence technology has led to the development of neural network models based on machine learning or deep learning to intelligently mine holes,reducing missed alarms and false ***,this project aims to study Java source code defect detection methods for defects like null pointer reference exception,XSS(Transform),and Structured Query Language(SQL)***,the project uses open-source Javalang to translate the Java source code,conducts a deep search on the AST to obtain the empty syntax feature library,and converts the Java source code into a dependency *** feature vector is then used as the learning target for the neural *** types of Convolutional Neural Networks(CNN),Long Short-Term Memory(LSTM),Bi-directional Long Short-Term Memory(BiLSTM),and Attention Mechanism+Bidirectional LSTM,are used to investigate various code defects,including blank pointer reference exception,XSS,and SQL injection *** results show that the attention mechanism in two-dimensional BLSTM is the most effective for object recognition,verifying the correctness of the method.

关键词： Vulnerability mining software security deep learning static analysis

Piezoelectricity activates persulfate for water treatment:A perspective

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Environmental Science and Ecotechnology 2024年第2期18卷 7-12页

作者： zhi Li Shenyu Lan Mingshan zhu Guangdong Key Laboratory of Environmental Pollution and Health School of EnvironmentJinan UniversityGuangzhou511443China Department of Environmental Science and Engineering Xi'an Jiaotong UniversityXi'an710049China

Advanced oxidation processes(AOPs)utilizing persulfate(PS)offer great potential for wastewater ***,the dependency on energy and chemical-intensive activation techniques,such as ultraviolet radiation and transition metal ions,constrains their widespread *** this limitation,researchers are turning towards the piezoelectric effectda novel,energy-efficient method for PS activation that capitalizes on the innate piezoelectric characteristics of ***,this method taps into weak renewable mechanical forces omnipresent in nature,ranging from wind,tides,water flow,sound,and atmospheric *** this perspective,we delve into the burgeoning realm of piezoelectric/PS-AOPs,elucidating its fundamental principles,the refinement of piezoelectric materials,potential mechanical force sources,and pertinent application *** emerging technology harbors significant potential as a pivotal element in wastewater pretreatment and may spearhead innovations in future water pollution control engineering.

关键词： Piezoelectric charge Persulfate Piezoelectric activation Water treatment

3D Foam-Based MXene Architectures:Structural and Electrolytic Engineering for Advanced Potassium-Ion Storage

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Energy & Environmental Materials 2024年第4期7卷 64-73页

作者： peng Zhang Yanmeng peng Qizhen zhu Razium Ali Soomro Ning Sun Bin Xu State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology Beijing Advanced Innovation Centre for Soft Matter Science and Engineering Beijing University of Chemical Technology

MXenes are emerging rapidly as promising electrode materials for energy storage due to their high electronic conductivity and rich surface chemistry,but their potassium storage performance is unsatisfactory because of... 详细信息

关键词： 3D foam-like scaffold electrolyte chemistry electrostatic neutralization MXene potassium-ion batteries

The governance technology for blockchain systems:a survey

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Frontiers of Computer Science 2024年第2期18卷 181-197页

作者： Guocheng zhu Debiao HE Haoyang AN Min LUO Cong peng School of Cyber Science and Engineering Wuhan UniversityWuhan 430072China Shandong Provincial Key Laboratory of Computer Networks Qilu University of Technology(Shandong Academy of Sciences)Jinan 250014China

After the Ethereum DAO attack in 2016,which resulted in significant economic losses,blockchain governance has become a prominent research ***,there is a lack of comprehensive and systematic literature review on blockchain *** deeply understand the process of blockchain governance and provide guidance for the future design of the blockchain governance model,we provide an in-depth review of blockchain *** this paper,first we introduce the consensus algorithms currently used in blockchain and relate them to governance ***,we present the main content of off-chain governance and investigate two well-known off-chain governance ***,we investigate four common on-chain governance voting techniques,then summarize the seven attributes that the on-chain governance voting process should meet,and finally analyze four well-known on-chain governance blockchain projects based on the previous *** hope this survey will provide an in-depth insight into the potential development direction of blockchain governance and device future research agenda.

关键词： blockchain governance off-chain governance on-chain governance voting

Cortical Organoid-on-a-Chip with Physiological Hypoxia for Investigating Tanshinone IIA-Induced Neural Differentiation

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Research 2024年第3期2023卷 457-468页

作者： Yue zhi Yujuan zhu Jinglin Wang Junqi Zhao Yuanjin Zhao Department of Rheumatology and Immunology Nanjing Drum Tower HospitalClinical Medical College of Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjing210023China State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China Shenzhen Research Institute Southeast UniversityShenzhen518038China

Cortical organoids represent cutting-edge models for mimic human brain development during the early and even middle stage of pregnancy, while they often fail to recreate the complex microenvironmental factors, such as physiological hypoxia. Herein, to recapitulate fetal brain development, we propose a novel cortical organoid-on-a-chip with physiological hypoxia and further explore the effects of tanshinone IIA (Tan IIA) in neural differentiation. The microfluidic chip was designed with a micropillar array for the controlled and efficient generation of cortical organoids. With low oxygen, the generated cortical organoids could recapitulate key aspects of early-gestational human brain development. Compared to organoids in normoxic culturing condition, the promoted neurogenesis, synaptogenesis and neuronal maturation were observed in the present microsystem, suggesting the significance of physiological hypoxia in cortical development. Based on this model, we have found that Chinese herbal drug Tan IIA could promote neural differentiation and maturation, indicating its potential therapeutic effects on neurodevelopmental disorders as well as congenital neuropsychiatric diseases. These results indicate that the proposed biomimetic cortical organoid-on-a-chip model with physiological hypoxia can offer a promising platform to simulate prenatal environment, explore brain development, and screen natural neuroactive components.

关键词： promoted herbal cutting