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Exploration of the Existence Forms and Patterns of Dissolved Oxygen Molecules in Water

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Nano-Micro Letters 2024年第10期16卷 337-349页

作者： Hewei Yuan Yaozhong zhang Xiaolu Huang Xiwu zhang Jinjin Li Yufeng Huang kun Li Haotian Weng Yang Xu Yafei zhang Key Laboratory of Thin Film and Microfabrication(Ministry of Education) Department of Micro/Nano ElectronicsSchool of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240People's Republic of China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240People's Republic of China Jinduo Yuchen Water Environment Engineering Co. LtdShanghai 201702People's Republic of China

The structure of liquid water is primarily composed of three-dimensional networks of water clusters formed by hydrogen bonds,and dis-solved oxygen is one of the most important indicators for assessing water *** this work,distilled water with different concentration of dissolved oxygen were prepared,and a clear negative correlation between the size of water clus-ters and dissolved oxygen concentration was ***,a phenomenon of rapid absorption and release of oxygen at the water interfaces was unveiled,suggesting that oxygen molecules predominantly exist at the interfaces of water *** molecules can move rapidly through the interfaces among water clusters,allowing dissolved oxygen to quickly reach a saturation level at certain partial pressure of oxygen and *** exploration into the mechanism by molecular dynamics simulations of oxygen and water clusters found that oxygen molecules can only exist stably at the interfaces among water clusters.A semi-empirical formula relating the average number of water molecules in a cluster(n)to ^(17)O NMR half-peak width(W)was summarized:n=0.1 W+*** findings provide a foundation for exploring the structure and properties of water.

关键词： Water clusters Dissolved oxygen ^(17)O NMR Molecular dynamics simulation

A lethal mice model of recombinant vesicular stomatitis viruses for EBOV-targeting prophylactic vaccines evaluation

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Virologica Sinica 2024年第3期39卷 516-519页

作者： Hong-Qing zhang zhe-Rui zhang Cheng-Lin Deng Zhi-Ming Yuan Bo zhang Key Laboratory of Special Pathogens and Biosafety Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing100049China Hubei Jiangxia Laboratory Wuhan430200China

Dear editor,Ebola virus(EBOV)is a member of the genus Orthoebolavirus within the family of ***'s the causative agent of Ebola virus disease(EVD),characterized by general malaise,severe gastrointestinal illness,febrile,coagulopathy,multi-organs dysfunction,and high mortality(up to 90%)in humans and nonhuman primates(NHPs)(Jacob et al.,2020).Since its discovery in 1976,EBOV has grabbed the global concerns,especially after the West African epidemic from 2014 to 2016,which resulted in 30,000 cases and over 11,000 deaths(Feldmann et al.,2020;Jacob et al.,2020).From 2018 to 2022,there have been thousands of infections primarily in the Democratic Republic of the Congo(DRC),resulting in over 2000 *** highlights the importance of continued attention and ongoing surveillance(***/emergenci es/disease-outbreak-news).

关键词： organs mortality editor

Ion Channel Dysregulation Following Intracerebral Hemorrhage

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Neuroscience Bulletin 2024年第3期40卷 401-414页

作者： Xiangyu zhang Yan zhang Qiuyang Su Yang Liu zhe Li V.Wee Yong Mengzhou Xue Department of Cerebrovascular Diseases The Second Afliated Hospital of Zhengzhou UniversityZhengzhou 450000China Academy of Medical Science Zhengzhou UniversityZhengzhou 450000China Hotchkiss Brain Institute and Department of Clinical Neurosciences University of CalgaryCalgaryAB T2N 1N4Canada

Injury to the brain after intracerebral hemorrhage(ICH)results from numerous complex cellular *** present,effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve *** is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following *** channels such as TWIK-related K+channel 1,sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in *** in turn participate in the formation of brain edema,disruption of the blood-brain barrier,and the generation of *** this review,we summarize the interaction between ions and ion channels,the effects of ion channel dysregulation,and we discuss some therapeutics based on ion-channel modulation following ICH.

关键词： Intracerebral hemorrhage Ion dyshomeostasis Sulfonylurea 1 transient receptor potential melastatin 4 TWIK-related K+channel 1 N-methyl-Daspartate receptor Transient receptor potential vanilloid 4

A continuous and long-term in-situ stress measuring method based on fiber optic. Part I: Theory of inverse differential strain analysis

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Petroleum Science 2024年第2期21卷 1171-1189页

作者： kun-Peng zhang Mian Chen Chang-Jun Zhao Su Wang Yong-Dong Fan State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing102249China MOE Key Laboratory of Petroleum Engineering in China University of Petroleum Beijing102249China Beijing International Center for Gas Hydrate School of Earth and Space SciencesPeking UniversityBeijing100871China

A method for in-situ stress measurement via fiber optics was proposed. The method utilizes the relationship between rock mass elastic parameters and in-situ stress. The approach offers the advantage of long-term stress measurements with high spatial resolution and frequency, significantly enhancing the ability to measure in-situ stress. The sensing casing, spirally wrapped with fiber optic, is cemented into the formation to establish a formation sensing nerve. Injecting fluid into the casing generates strain disturbance, establishing the relationship between rock mass properties and treatment ***, an optimization algorithm is established to invert the elastic parameters of formation via fiber optic strains. In the first part of this paper series, we established the theoretical basis for the inverse differential strain analysis method for in-situ stress measurement, which was subsequently verified using an analytical model. This paper is the fundamental basis for the inverse differential strain analysis method.

关键词： In-situ stress Fiber optic Orthotropic elastic Differential evolution ABAQUS

A direct polymeric carbon nitride/tungsten oxide Z-scheme heterostructure for efficient photocatalytic hydrogen generation via reforming of plastics into value-added chemicals

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Rare Metals 2024年第8期43卷 3771-3783页

作者： Rui-zhe Wang Zhi Lin Yi-Qing Wang Kai-Ni zhang Ge-Hong zhang Jie zhang Samuel S.Mao Shao-Hua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Civil and Architecture Engineering Xi'an Technological UniversityXi'an 710021China Department of Mechanical Engineering University of California at BerkeleyBerkeleyCA94720USA

To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-scheme heterostructure could photocataly tic ally produce hydrogen and value-added chemicals(e.g.,formate and acetate) by reforming of plastic polylactic acid(PLA) in alkaline aqueous *** optimizing WO_(3) contents and reaction conditions,the obtained PCN/WO_(3)heterostructure exhibits much increased photocatalytic activity for PLA photoreforming under visible light,with hydrogen evolution rate reaching 402.90 μmol·g~(-1)·h~(-1),which is 3.5 times that of *** is revealed that the Z-scheme charge transfer between PCN and WO_(3) mainly contributes to the promoted charge separation and thus the improved photocatalytic ***,with h+and·OH experimentally evidenced as the predominant active species,a possible reaction pathway for the reforming of PLA into value-added chemicals(e.g.,formate and acetate)over PCN/WO_(3) Z-scheme heterostructure is cleared by monitoring the reaction intermediates and *** work paves a carbon neutrality and scalable route toward the synergistical production of hydrogen and value-added chemicals by utilizing and recycling plastic waste.

关键词： Carbon nitride Z-scheme heterojunction Plastic waste conversion Photocatalytic H_(2)production Value-added chemicals

Application of magnetotactic bacteria as engineering microrobots:Higher delivery efficiency of antitumor medicine

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Chinese Chemical Letters 2024年第10期35卷 139-146页

作者： Jing zhang Charles Wang Yaoyao zhang Haining Xia Yujuan Wang kun Ma junfeng Wang High Magnetic Field Laboratory CAS Key Laboratory of High Magnetic Field and lon Beam Physical BiologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China University of California San DiegoLa JollaCA 92093United States International Magnetobiology Frontier Research Center Hefei 230031China

For a significant duration,enhancing the efficacy of cancer therapy has remained a critical *** bacteria(MTB),often likened to micro-robots,hold substantial promise as a drug delivery ***,classified as anaerobic,aquatic,and gram-negative microorganisms,exhibit remarkable motility and precise control over their internal biomineralization *** unique ability results in the formation of magnetic nanoparticles arranged along filamentous structures in a catenary fashion,enclosed within a *** bacteria possess distinctive biochemical properties that facilitate their precise positioning within complex *** harnessing these biochemical attributes,MTB could potentially offer substantial advantages in the realm of cancer *** article reviews the drug delivery capabilities of MTB in tumor treatment and explores various applications based on their inherent *** objective is to provide a comprehensive understanding of MTB-driven drug delivery and stimulate innovative insights in this field.

关键词： Magnetotactic bacteria Engineering microrobot Tumor treatment Drug delivery Bioconjugation

Achieving highly efficient long-wavelength phosphorescence emission of large singlet-triplet energy gap materials by host-guest doping

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Science China Chemistry 2024年第6期67卷 1922-1928页

作者： Shasha zhang Wei Yao Anqi Lv kun Liu Yusheng zhang Chifeng Zhou Huili Ma Huifang Shi Zhongfu An Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech UniversityNanjing211816China

High-efficiency long-wavelength phosphorescence emissions of large singlet-triplet energy gap(ΔE_(ST))materials are essential for applications in biology and ***,few long-wavelength phosphorescence emissions of largeΔE_(ST)materials have been reported due to the weak spin-orbit coupling(SOC)and strong non-radiative ***,we develop a strategy to achieve highly efficient long-wavelength room temperature phosphorescence(RTP)emission of largeΔE_(ST)materials,which display bright red RTP emission with above 400μs lifetime and 6.5%phosphorescent quantum *** experiments and theoretical calculations reveal that the fishbone-like packing and the zig-zag interactions provide favorable conditions for suppressing the non-radiative transitions of triplet state excitons,and heavy atoms effectively promote the intersystem crossing(ISC)process for highly efficient long-wavelength phosphorescence *** universality of the method for highly efficient long-wavelength RTP emission of largeΔE_(ST)materials was further investigated in various ***,these materials with largeΔE_(ST)manifest the advantages of large color contrast on the display and utilization potentiality in information *** strategy paves the way for the high contrast display and development of information encryption with RTP emission.

关键词： room temperature phosphorescence singlet-triplet energy gap host-guest doping heavy atom effect red phosphorescence

d-d Orbital coupling induced by crystal-phase engineering assists acetonitrile electroreduction to ethylamine

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Journal of Energy Chemistry 2024年第2期89卷 216-225,I0006页

作者： Honggang Huang Yao Chen Hui Fu Cun Chen Hanjun Li zhe zhang Feili Lai Shuxing Bai Nan zhang Tianxi Liu Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122JiangsuChina Department of Chemistry KU LeuvenCelestijnenlaan 200FLeuven 3001Belgium College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071ShandongChina

The d-d orbital coupling induced by crystal-phase engineering can effectively adjust the electronic structure of electrocatalysts,thus showing significant catalytic performance,while it has been rarely explored in electrochemical acetonitrile reduction reaction(ARR)to ***,we successfully realize the structural transformation of Pd Cu metallic aerogels(MAs)from face-centered cubic(FCC)to body-centered cubic(BCC)through annealing ***,the BCC Pd Cu MAs exhibit excellent ARR performance with high ethylamine selectivity of 90.91%,Faradaic efficiency of 88.60%,yield rate of 316.0 mmol h^(-1)g^(-1)_(Pd+Cu)and long-term stability for consecutive electrolysis within 20 h at-0.55 V *** hydrogen electrode,outperforming than those of FCC Pd Cu *** the membrane electrode assembly system,BCC Pd Cu MAs also demonstrate excellent ethylamine yield rate of 389.5 mmol h^(-1)g^(-1)_(Pd+Cu).Density functional theory calculation reveals that the d-d orbital coupling in BCC Pd Cu MAs results in an evident correlation effect for the interaction of Pd and Cu sites,which boosts up the Cu sites electronic activities to enhance ARR *** work opens a new route to develop efficient ARR electrocatalysts from the perspective of crystalline structure transformation.

关键词： d-d Orbital coupling Crystal-phase engineering Metallic aerogels Acetonitrile electroreduction reaction Ethylamine

Reversible Mn^(2+)/Mn^(4+)double-electron redox in P3-type layer-structured sodium-ion cathode

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Journal of Energy Chemistry 2024年第2期89卷 79-88,I0004页

作者： Jie Zeng Jian Bao Ya zhang Xun-Lu Li Cui Ma Rui-Jie Luo Chong-Yu Du Xuan Xu zhe Mei zhe Qian Yong-Ning Zhou Department of Materials Science Fudan UniversityShanghai 200433China Shanghai Xuanyi New Energy Development Co. LtdShanghai 201800China Global Institute of Future Technology Shanghai Jiao Tong UniversityShanghai 200240China

The balance between cationic redox and oxygen redox in layer-structured cathode materials is an important issue for sodium batteries to obtain high energy density and considerable cycle *** redox can contribute extra capacity to increase energy density,but results in lattice instability and capacity fading caused by lattice oxygen gliding and oxygen *** this work,reversible Mn^(2+)/Mn^(4+)redox is realized in a P3-Na_(0.65)Li_(0.2)Co_(0.05)Mn_(0.75)O_(2)cathode material with high specific capacity and structure stability via Co *** contribution of oxygen redox is suppressed significantly by reversible Mn^(2+)/Mn^(4+)redox without sacrificing capacity,thus reducing lattice oxygen release and improving the structure *** X-ray techniques reveal that P3 phase is well maintained in a wide voltage window of 1.5-4.5 V ***^(+)/Na even at 10 C and after long-term *** is disclosed that charge compensation from Co/Mn-ions contributes to the voltage region below 4.2 V and O-ions contribute to the whole voltage *** synergistic contributions of Mn^(2+)/Mn^(4+),Co^(2+)/Co^(3+),and O^(2-)/(O_n)^(2-)redox in P3-Na_(0.65)Li_(0.2)Co_(0.05)Mn_(0.75)O_(2)lead to a high reversible capacity of 215.0 m A h g^(-1)at 0.1 C with considerable cycle *** strategy opens up new opportunities for the design of high capacity cathode materials for rechargeable batteries.

关键词： Sodium batteries Cathode materials Layered structure Co substitution