检索结果-南通市图书馆

同方期刊数据库

Two dimensional(2D) graphdiyne-based nanomaterial for bacterial inactivation

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2023年第6期33卷 780-788页

作者： chuanqi pan Bohua Lu Weihua Li Institute of Chemistry Henan Academy of Sciences High & New Technology Research Center of Henan Academy of Sciences North China University of Water Resources and Electric Power

Infectious diseases caused by pathogenic bacteria and viruses pose a great threat to the ecological environment and the lives and health of humans and animals. Developing efficient bacterial inactivation techniques and nanomaterials prevent the invasion of pathogenic bacteria has become the goal pursued by researchers. Carbon materials exhibit enormous potential for bacterial inactivation applications due to their excellent biocompatibility, environmental friendliness, and high antibacterial performance. Graphdiyne(GDY), as a novel twodimensional carbon material, has attracted widespread attention in the fields of biology and antibacterial due to its unique acetylene bonds, easily tunable electronic structure, good biocompatibility and peroxidase-like properties etc. This review summarizes the research progress of GDY and GDY-based nanomaterials, including pristine GDY, graphdiyne oxide(GDYO), heteroatom doped-GDY, and GDY-based composite materials in the field of bacterial inactivation, and discusses the opportunities and challenges faced by GDY-based nanomaterials in the fields of biomedicine and antibacterial in the future.

关键词： GDY Carbon materials Nanomaterials Acetylene bonds Bacterial inactivation

Promising graphdiyne-based nanomaterials for environmental pollutant control

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Materials 2024年第11期67卷 3456-3467页

作者： chuanqi pan Qianli He Chaofan Li College of Environmental Engineering Henan University of TechnologyZhengzhou 450001China 2 Institute of ChemistryHenan Academy of SciencesZhengzhou 450002China Institute of Quality Standard and Testing Technology for Agro-Products Chinese Academy of Agricultural Sciencesand Key Laboratory of Agro-Food Safety and Quality Ministry of Agriculture and Rural AffairsBeijing 100081China Henan Academy of Sciences Zhengzhou 450046China

ABSTRACT Environmental pollutants,including gas phase pollutants,liquid organic pollutants,heavy metal ions,and pathogenic bacteria,pose a serious threat to our ecological environment and human *** addressing these pollutants has become one of the most urgent ***(GDY),as an emerging carbon material for environmental remediation,has unique acetylene bonds and abundant pore *** unique carbon atomic structure of sp/sp2 hybrid endows it with tunable electronic structure and outstanding physical and chemical *** review summarizes the practical applications of GDY-based nanomaterials in the context of environmental pollution control,including carbon monoxide(CO)oxidation,ozone(O_(3))decomposition,heavy metal ion detection and adsorption,organic pollutant degradation,and bacterial ***,the structure-performance relationship of GDYbased nanomaterials is analyzed,and the issues and challenges in the field of environmental remediation of GDY-based materials are indicated.

关键词： graphdiyne CO oxidation O_(3) decomposition heavy metal ion detection and adsorption organic pollutant degradation bacterial inactivation

Fabrication and Excellent Antibacterial Activity of Well-defined CuO/Graphdiyne Nanostructure

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2021年第6期37卷 1341-1347页

作者： pan chuanqi LIU Xiaoxuan ZHANG Xiang MAO Feihong XU Peiyan ZHU Yuhua DENG Hongtao LUO Zhu SUN Hongwei ZHANG Lizhi GUO Yanbing Key Laboratory of Pesticide&Chemical Biology Ministry of EducationInstitute of Environmental and Applied ChemistryCollege of ChemistryCentral China Normal UniversityWuhan430079P.R.China

Copper oxide(CuO),due to its low cost,good chemical and physical stability,has recently been given special attention as a potential candidate for antibacterial ***,developing novel CuO nanocomposites with improved antibacterial property and unraveling the interface promotion mechanism has been a fundamental challenge for ***,well-defined CuO/graphdiyne(CuO/GDY)nanostructures with uniformly anchored CuO nanoparticles(ca.4.5 nm)have been *** CuO/GDY nanostructure exhibited superior *** inactivation efficiency,which is nearly 19 times and 7.9 times higher than the bare GDY and commercial CuO,*** improved *** inactivation performance was mainly due to the increased reactive·O_(2)−species generated by the activation of molecular O2 over CuO/GDY *** findings demonstrate the efficient antibacterial activity of well-defined CuO/GDY nanostructures and provide insights on the development of efficient GDY-based antibacterial materials.

关键词： Graphdiyne CuO/GDY nanocomposite Escherichia coli Antibacterial Superoxide radical

Synergistic effect of silicon availability and salinity on metal adsorption in a common estuarine diatom

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第2期148卷 364-374页

作者： Fengyuan Chen Jie Ma Ke pan SZU-HKUST Joint PhD Program in Marine Environmental Science Shenzhen UniversityShenzhen 518060China Shenzhen Key Laboratory of Marine Microbiome Engineering Institute for Advanced StudyShenzhen UniversityShenzhen 518060China Department of Ocean Science The Hong Kong University of Science and TechnologyHong Kong 999077China

Increasing nitrogen and phosphorus discharge and decreasing sediment input have made silicon(Si)a limiting element for diatoms in *** in nutrient structure and salinity fluctuation can greatly affect metal uptake by estuarine ***,the combined effects of Si and salinity on metal accumulation in these diatoms have not been *** this study,we aimed to investigate how salinity and Si availability combine to influence the adsorption of metals by a widely distributed diatom Phaeodactylum *** data indicate that replete Si and low salinity in seawater can enhance cadmium and copper adsorption onto the diatom *** the single-cell level,surface potential was a dominant factor determining metal adsorption,while surface roughness also contributed to the highermetal loading capacity at lower *** a combination of noninvasive micro-test technology,atomic force microscopy,X-ray photoelectron spectroscopy,and Fourier transform infrared spectroscopy,we demonstrate that the diversity and abundance of the functional groups embedded in diatom cell walls vary with salinity and Si *** results in a change in the cell surface potential and transient metal *** study provides novel mechanisms to explain the highly variable metal adsorption capacity of a model estuarine diatom.

关键词： Diatom Metal adsorption Silicon Salinity Functional group Surface potential

Seismic isolation design and resilience improvement of railway station considering the influence of near-fault pulse-like ground motions

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Earthquake Engineering and Engineering Vibration 2025年第1期24卷 257-270页

作者： pan Yi Song Jiayu Chen Qi Liu Yongxin School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Key Laboratory of Seismic Engineering of Sichuan Province Chengdu 610031China

To improve the resilience of railway stations,a typical station was selected as the research object,and an isolation design was ***-four groups of near-fault pulse-like ground motions were *** seismic resilience of the no-isolation railway stations(NIRS)and the isolation railway stations(IRS)were compared to provide a numerical result of the improvement in *** results show that in the station isolation design,the station's functional requirements and structural characteristics should be considered and the appropriate placement of isolation bearings is under the waiting *** the action of a rare earthquake,the repair cost,repair time,rate of harm and death of the IRS were decreased by 8.04 million,18.30 days,6.93×10^(-3)and 1.21×10^(-3),respectively,when compared to the *** IRS received a seismic resilience grade of three-stars and the NIRS only one-star,indicating that rational isolation design improves the seismic resilience of ***,for the design of stations close to earthquake faults,it is suggested to utilize appropriate isolation techniques to improve their seismic resilience.

关键词： railway station near-fault pulse-like ground motion isolation design seismic resilience resilience improvement

Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic H_(2)O_(2) synthesis coupled with biomass valorization

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 215-225页

作者： Jiaye Li Shuang pan Yihuang Chen Qiong Liu College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325035ZhejiangChina Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology(China) Institute of AnalysisGuangdong Academy of Sciences(China National Analytical CenterGuangzhou)Guangzhou 510070GuangdongChina

Photocatalytic oxygen reduction for hydrogen peroxide(H_(2)O_(2))synthesis presents a green and costeffective production ***,achieving highly selective H_(2)O_(2)synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H_(2)O_(2)and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride(CNRb).The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h^(-1)for H_(2)O_(2)generation and photooxidation rate of 3.75 mM h^(-1)for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion(SCC)efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H_(2)O_(2)coupled with biomass valorization.

关键词： Atomic economy Radical pathway regulation Photocatalytic H_(2)O_(2)synthesis Rubidium atom coordination Biomass valorization

Airborne fungal communities are more susceptible to anthropogenic activities than bacteria

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第3期149卷 564-573页

作者： Yuanyuan pan Zhiwei Zuo Xueyun Huang Renguo Zhu School of Water Resources&Environmental Engineering East China University of TechnologyNanchang 330013China Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution East China University of TechnologyNanchang 330013China

Airborne microorganisms(AM)have significant environmental and health *** studies have been conducted to investigate the factors influencing the composition and diversity of ***,the knowledge of AM with anthropogenic activities has not reach a *** this study,we took advantage of the dramatic decline of outdoor anthropogenic activities resulting from COVID-19 lockdown to reveal their *** collected airborne particulate matter before and during the lockdown period in two *** results showed that it was fungal diversity and communities but not bacteria obviously different between pre-lockdownand lockdown samples,suggesting that airborne fungiwere more susceptible to anthropogenic activities than ***,after the implementation of lockdown,the co-occurrence networks of both bacterial and fungal community became more complex,whichmight be due to the variation of microbial ***,Mantel test and correlation analysis showed that air pollutants also partly contributed to microbial *** fungal community was more affected by air pollutants than bacterial ***,some human pathogens like Nigrospora and Arthrinium were negatively correlated with air ***,our study highlighted the more impacts of anthropogenic activities on airborne fungal community than bacterial community and advanced the understanding of associations between anthropogenic activities and AM.

关键词： COVID-19 lockdown Anthropogenic activities Airborne microorganisms Response Air pollutants

The role of axon guidance molecules in the pathogenesis of epilepsy

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第5期20卷 1244-1257页

作者： Zheng Liu Chunhua pan Hao Huang Department of Neurology Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina

Current treatments for epilepsy can only manage the symptoms of the condition but cannot alter the initial onset or halt the progression of the disease. Consequently, it is crucial to identify drugs that can target novel cellular and molecular mechanisms and mechanisms of action. Increasing evidence suggests that axon guidance molecules play a role in the structural and functional modifications of neural networks and that the dysregulation of these molecules is associated with epilepsy susceptibility. In this review, we discuss the essential role of axon guidance molecules in neuronal activity in patients with epilepsy as well as the impact of these molecules on synaptic plasticity and brain tissue remodeling. Furthermore, we examine the relationship between axon guidance molecules and neuroinflammation, as well as the structural changes in specific brain regions that contribute to the development of epilepsy. Ample evidence indicates that axon guidance molecules, including semaphorins and ephrins, play a fundamental role in guiding axon growth and the establishment of synaptic connections. Deviations in their expression or function can disrupt neuronal connections, ultimately leading to epileptic seizures. The remodeling of neural networks is a significant characteristic of epilepsy, with axon guidance molecules playing a role in the dynamic reorganization of neural circuits. This, in turn, affects synapse formation and elimination. Dysregulation of these molecules can upset the delicate balance between excitation and inhibition within a neural network, thereby increasing the risk of overexcitation and the development of epilepsy. Inflammatory signals can regulate the expression and function of axon guidance molecules, thus influencing axonal growth, axon orientation, and synaptic plasticity. The dysregulation of neuroinflammation can intensify neuronal dysfunction and contribute to the occurrence of epilepsy. This review delves into the mechanisms associated with

关键词： axon guidance drug-resistant epilepsy epilepsy nerve regeneration nervous system diseases neural pathways neuroinflammatory diseases neuronal plasticity neurons synaptic remodeling

Recent progress in flexible sensors based on 2D materials

在线全文

学校读者我要写书评

暂无评论

Journal of Semiconductors 2025年第1期46卷 130-142页

作者： Xiang Li Guancheng Wu Caofeng pan Rongrong Bao School of Physics Beihang UniversityBeijing 100191China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400China School of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049China

With the rapid development of the internet of things(IoT)and wearable electronics,the role of flexible sensors is becoming increasingly irreplaceable,due to their ability to process and convert information ***-dimensional(2D)materials have been widely welcomed by researchers as sensitive layers,which broadens the range and application of flexible sensors due to the advantages of their large specific surface area,tunable energy bands,controllable thickness at the atomic level,stable mechanical properties,and excellent optoelectronic *** review focuses on five different types of 2D materials for monitoring pressure,humidity,sound,gas,and so on,to realize the recognition and conversion of human body and environmental ***,the main problems and possible solutions of flexible sensors based on 2D materials as sensitive layers are summarized.

关键词： 2D materials flexible sensors layered structure solution method