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Construction of eco-friendly dual carbon dots ratiometric fluorescence probe for highly selective and efficient sensing mercury ion

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Journal of Environmental Sciences 2025年第2期148卷 1-12页

作者： Yongli Liu Xiaoyan Su Huanjia Liu Guifen Zhu Guobei Ge Yuxin Wang Penghui Zhou Qingxiang Zhou School of Environment Henan Key Laboratory for Environmental Pollution ControlKey Laboratory for Yellow River and Huai River Water Environmental and Pollution ControlMinistry of EducationHenan Normal UniversityXinxiang 453007China College of Chemical Engineering and Environment China University of Petroleum-BeijingBeijing 102249China

In present work,blue carbon dots(b-CDs)were derived from ammonium citrate and guanidine hydrochloride,and red carbon dots(r-CDs)were stemmed from malonate,ethylenediamine and meso-tetra(4-carboxyphenyl)porphin based on facile hydrothermal ***-friendly ratiometric fluorescence probe was innovatively constructed to effectively measure Hg2+utilizing b-CDs and *** developed probe displayed two typical emission peaks at 450 nm from b-CDs and 650 nm from r-CDs under the excitation at 360 *** ion has strong quenching effect on the fluorescence intensity at 450 nm due to the electron transfer process and the fluorescence change at 450 nm was used as the response signal,whereas the fluorescence intensity at 650 nm kept unchangeable which resulted from the chemical inertness between Hg^(2+)and r-CDs,serving as the reference signal in the sensing *** optimal circumstances,this probe exhibited an excellent linearity between the fluorescence response values of F450/F650 and Hg^(2+)concentrations over range of 0.01-10μmol/L,and the limit of detectionwas down to 5.3 nmol/***,this probe was successfully employed for sensing Hg^(2+)in practical environmental water samples with satisfied recoveries of 98.5%-105.0%.The constructed ratiometric fluorescent probe provided a rapid,environmental-friendly,reliable,and efficient platform for measuring trace Hg^(2+)in environmental field.

关键词： Blue carbon dots Red carbon dots Electron transfer Hg^(2+) Eco-friendliness

Study of the Inhibition of Schumann Resonance-inspired Electromagnetic Field on Cancer Cell Proliferation

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Journal of Bionic Engineering 2025年第1期22卷 341-353页

作者： Xianqiang Yan Xuelei Liu Shujun Zhang Zhenning Liu Luquan Ren Key Laboratory of Bionic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022China School of Computing and Engineering University of GloucestershireThe ParkCheltenhamGL502RHUK School of Mechanical Engineering Shandong University of TechnologyZibo255000China

Organisms on Earth evolve and coexist with natural Electromagnetic Fields(EMFs).Although many reports have suggested the potential anti-neoplastic effects of EMFs with specific parameters,the studies on the influence of natural EMFs on cancers are still ***,an EMF emitter has been developed to investigate the effects of the extremely-low frequency SR-mimicking EMF(SREMF)on cancer and normal cell *** numerical simulation has revealed that the emitter with specific parameters is able to enhance EMF intensity and uniformity on the designated plane above the *** importantly,honeycomb-like emitter array can generate a stronger EMF intensity on the 20 mm plane above the *** colony formation assays have demonstrated that SREMF generated by the honeycomb-like emitter array can significantly inhibit Hela cell proliferation in a cell-density-dependent *** morphological changes of SREMF-exposed Hela cells suggest that the anti-proliferative effect of SREMF may be caused by apoptosis *** contrast,no detrimental effect is observed for SREMF-treated normal cells,which probably can be explained by the evolutionary ***,this work can not only contribute to understanding the impact of natural EMF on creatures,but also afford a novel strategy to personalized cancer prevention and treatment.

关键词： Electromagnetic fields(EMFs) Schumann resonance EMF emitter Cancer Cell proliferation

A deeper and hotter Martian core-mantle differentiation inferred from FeO partitioning

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Science Bulletin 2025年第3期70卷 429-436页

作者： Yunguo Li Chunhui Li You Zhou Yun Liu Huaiwei Ni State Key Laboratory of Lithospheric and Environmental Coevolution University of Science and Technology of ChinaHefei 230026China Deep Space Exploration Laboratory/School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China research Centre for Planetary Science College of Earth and Planetary SciencesChengdu University of TechnologyChengdu 610059China State Key Laboratory of Ore Deposit Geochemistry Chinese Academy of SciencesGuiyang 550081China

The core-mantle differentiation process plays a pivotal role in redistributing material on a massive scale,shaping the long-term evolution of rocky *** this process is crucial for gaining insights into the accretion and evolution of planets like ***,the details of Mars’s core-mantle differentiation remain poorly understood due to limited compositional data for its core and *** this study,we aim to constrain the Martian core-mantle differentiation by examining FeO partitioning between core and mantle materials,incorporating improved Martian compositional data from the InSight *** ab initio thermodynamic techniques,we calculated the FeO partition coefficient between liquid iron and silicate *** results align with previous studies while also clarifying the factors affecting partitioning *** on these findings and estimates of oxygen concentration in the core,we infer that Mars’s core and mantle likely differentiated at temperatures above 2440 K and pressures ranging from 14 to 22 *** these estimates are higher than previously reported,they are consistent with observed abundances of moderately siderophile elements and Mars’s accretion models.

关键词： Mars Core-mantle differentiation Volatile Partitioning

AI-Assisted Flow Field Design for Proton Exchange Membrane Fuel Cells:Progress and Perspective

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Journal of Bionic Engineering 2025年第1期22卷 47-64页

作者： Tongxi Zheng Fanyu Meng Wenxuan Fan Mingxin Liu Dafeng Lu Yang Luan Xunkang Su Guolong Lu Zhenning Liu Key Laboratory of Bionic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022China Product Planning and Project Management Department China FAW Group Corporation LimitedChangchun130011China

Bipolar plate is one of the key components of Proton Exchange Membrane Fuel Cell(PEMFC)and a reasonable flow field design for bipolar plate will improve cell ***,we have reviewed conventional and bionic flow field designs in recent literature with a focus on bionic flow *** particular,the bionic flow fields are summarized into two types:plant-inspired and *** conventional methodology for flow field design takes more time to find the optimum since it is based on experience and trial-and-error *** recent years,machine learning has been used to optimize flow field structures of bipolar plates owing to the advantages of excellent prediction and optimization *** Intelligence(AI)-assisted flow field design has been summarized into two categories in this review:single-objective optimization and multi-objective ***,a Threats-Opportunities-Weaknesses-Strengths(TOWS)analysis has been conducted for AI-assisted flow field *** has been envisioned that AI can afford a powerful tool to solve the complex problem of bionic flow field design and significantly enhance the performance of PEMFC with bionic flow fields.

关键词： Proton exchange membrane fuel cell Artificial intelligence Bionic Flow field Algorithm

Anti-Swelling Polyelectrolyte Hydrogel with Submillimeter Lateral Confinement for Osmotic Energy Conversion

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Nano-Micro Letters 2025年第4期17卷 96-110页

作者： Yongxu Liu jiangnan Song Zhen Liu Jialin Chen Dejuan Wang Hui Zhi Jiebin Tang Yafang Zhang Ningbo Li Weijia Zhou Meng An Hong Liu Guobin Xue Institute for Advanced Interdisciplinary research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022People’s Republic of China College of Mechanical and Electrical Engineering Shaanxi University of Science and TechnologyXi’an 710021People’s Republic of China School of Physics and Technology University of JinanJinan 250022People’s Republic of China State Key Laboratory of Crystal Materials Shandong University27 Shandanan RoadJinan 250100People’s Republic of China

Harvesting the immense and renewable osmotic energy with reverse electrodialysis(RED)technology shows great promise in dealing with the ever-growing energy *** key challenge is to improve the output power density with improved trade-off between membrane permeability and ***,polyelectrolyte hydrogels(channel width,2.2 nm)with inherent high ion conductivity have been demonstrated to enable excellent selective ion transfer when confined in cylindrical anodized aluminum pore with lateral size even up to the submillimeter scale(radius,0.1 mm).The membrane permeability of the anti-swelling hydrogel can also be further increased with cellulose *** real seawater and river water,the output power density of a three-chamber cell on behalf of repeat unit of RED system can reach up to 8.99 W m^(-2)(per unit total membrane area),much better than state-of-the-art *** work provides a new strategy for the preparation of polyelectrolyte hydrogel-based ion-selective membranes,owning broad application prospects in the fields of osmotic energy collection,electrodialysis,flow battery and so on.

关键词： Ionic polymer Hydrogel Confinement effect Anti-swelling Osmotic energy conversion

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Rapid and high-resolution 3D printing via photoacid generator induced cationic RAFT polymerization

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Science China Chemistry 2025年

作者： Bowen Zhao Jiajia Li Chongyang Yang Xiangqiang Pan Zhengbiao Zhang Jian Zhu State Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis Department of Polymer Science and Engineering College of Chemistry Chemical Engineering and Materials Science Soochow University

Vinyl ethers,while being typical monomers for living cationic polymerization,have limited commercial use due to the poor mechanical properties of their polymers at room *** explored the use of photoacid generators to induce cationic reversible addition-fragmentation chain transfer （RAFT） polymerization for the rapid high-resolution three-dimensional （3D）printing of various vinyl *** process demonstrated controlled molecular weights and narrow molecular weight distributions （MWD）,with monomer conversions exceeding 90%in *** a crosslinker enabled 3D printing at speeds up to 8.46 cm h-1with layer thicknesses as thin as 50μ*** mechanical properties of the printed objects were tunable by adjusting resin components,allowing for a range of material characteristics from brittle to elastomeric （tensile strength ranging from 13.9 to 31.7 MPa,Young’s modulus ranging from 185.6 to 992.7 MPa and elongation at break ranging from 2.8%to 68.3%）.Moreover,polymer welding facilitated the creation of gradient materials,showcasing the potential for engineered applications of poly（vinyl ethers）(PVEs).

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Structural analysis of a neutral polysaccharide ATP-1 from the red seaweed Asparagopsis taxiformis and its immunomodulatory effects on RAW264.7 macrophages

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Food Science and Human Wellness 2025年

作者： Kun Yang Baojun Xu Wei Hu Yifan Tang Amy Hui-Mei Lin Saiyi Zhong College of Food Science and Technology， Guangdong Ocean university， Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety，Guangdong Province Engineering Laboratory for Marine Biological Products， Guangdong Provincial Engineering Technology research Center of Seafood Guangdong Provincial Engineering Technology research Center of Prefabricated Seafood Processing and Quality Control Food Science and Technology program， Department of Life Sciences， BNU-HKBU United International College Singapore Institute of Food and Biotechnology Innovation (SIFBI) Shenzhen research Institute， Guangdong Ocean university

As a seaweed supplement， the powdered， entire herb of Asparagopsis taxiformis can effectively promote immune response in animals. However， the active factors responsible for this effect are currently unknown. A novel polysaccharide， ATP-1， was isolated and purified from the red alga A. taxiformis， and its structural and immunomodulatory properties were determined. ATP-1 is a neutral polysaccharide with a molecular weight of 307.978 kDa and is primarily composed of galactose (94.07%)， glucose (1.27%)， and xylose (4.66%). Scanning electron microscopy and atomic force microscopy revealed that ATP-1 had an amorphous structure and was composed of molecular chain entanglement and intramolecular hydrogen bonding interactions. The microstructure of ATP-1 exhibited asymmetric sheet–like cracks and pores. Results from immunomodulatory activity showed that ATP-1 promoted inducible nitric oxide (NO) synthase and cyclooxygenase (COX)-2 protein expression in RAW264.7 macrophages， improved macrophage phagocytic ability， and stimulated cytokine production (NO， tumor necrosis factor [TNF]-α， and interleukin [IL]-6). Quantitative proteome analysis identified 178 differentially expressed proteins (70 upregulated and 108 downregulated) that were involved in various molecular pathways， among which， TNF was one of the 20 most common and significant signaling pathways in inflammation and immunoregulation. Western blotting indicated that ATP-1 significantly upregulated the expression of IKKα， IKKβ， COX-2， and TNF-α proteins in the TNF pathway. In contrast， ATP-1 downregulated the expression of IκBα， Fas， and AIPI. Results from molecular docking suggested that hydrogen bonding predominantly contributed to the affinity between TNF-α and galactose， glucose， and xylose. These findings indicated that ATP-1 may play an immunomodulatory role by activating the TNF signaling pathway. ATP-1 enhanced macrophage phagocytic capacity and stimulated the production of cytokines NO， TNF-α， and IL-6， thereb

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Constructing diverse switchable circularly polarized luminescence via a single azobenzene polymer film

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Chinese Chemical Letters 2025年第1期36卷 299-305页

作者： Xiang Wang Qingping Song Zixiang He Gong Zhang Tengfei Miao Xiaoxiao Cheng Wei Zhang State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Department of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China School of Chemical and Environmental Engineering Anhui Polytechnic UniversityWuhu 241000China Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal UniversityHuaian 223300China

Recently circularly polarized luminescence(CPL)materials have attracted significant *** reversible dynamic property to these materials has been a key focus in cutting-edge fields,such as in high-level information ***,we provided a novel and general strategy involving handednessselective filtration and ground-state chiral self-recovery(CSR)in double film system to address this *** on this strategy,we achieved CPL switch through the reversible modulation of ground-state chirality including absorption and scattering circular dichroism(CD)signals over the full UV-visible wavelength range(365-700 nm)in a single azobenzene polymer(PAzo)*** importantly,by flexibly changing the type of fluorescent films,it is convenient to achieve general excited-state CSR,that is reversible switching of full-color including ideal white(CIE coordinate(0.33,0.33)),as well as room-temperature phosphorescent *** these CPL signals without almost any intensity decay after three cycles of onand-off *** results indicated that the trans-cis isomerization and ordered rearrangement of azobenzene units in PAzo film were the fundamental reasons for realizing CPL ***,based on this system we achieved dynamic visual encryption and decryption process including multiple decryption *** study provides an effective method for constructing a universally applicable chiroptical switch in excited state.

关键词： Circularly polarized luminescence Azobenzene polymer Multiple CPL Chiral switch Information encryption

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Deterministic quantum state and gate teleportation between distant superconducting chips

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Science Bulletin 2025年第3期70卷 351-358页

作者： Jiawei Qiu Yang Liu Ling Hu Yukai Wu Jingjing Niu Libo Zhang Wenhui Huang Yuanzhen Chen Jian Li Song Liu Youpeng Zhong Luming Duan Dapeng Yu Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China International Quantum Academy Shenzhen 518048China Guangdong Provincial Key Laboratory of Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Center for Quantum Information Institute for Interdisciplinary Information SciencesTsinghua UniversityBeijing 100084China Department of Physics Southern University of Science and TechnologyShenzhen 518055China

Quantum teleportation is of both fundamental interest and great practical importance in quantum information *** date,quantum teleportation has been implemented in various physical systems,among which superconducting qubits are of particular practical significance as they emerge as a leading system to realize large-scale quantum ***,scaling up the number of superconducting qubits on a single chip becomes increasing challenging because of some emergent technical *** of quantum teleportation and remote computation over qubits on distant superconducting chips is a key quantum communication technology to scaling up the system through a distributed quantum computational ***,this goal has not been realized yet in experiments due to the technical challenges including making a quantum interconnect between distant superconducting chips and the inefficient transfer of flying microwave photons over the lossy *** we demonstrate deterministic teleportation of quantum states and entangling gates between distant superconducting chips connected by a 64-m-long cable bus featuring an ultralow loss of 0.32 dB/km at cryogenic temperatures,where high fidelity remote entanglement is generated via flying microwave *** work demonstrates a prime building block for distributed quantum computation with superconducting qubits,and opens up a new avenue for waveguide quantum electrodynamics and quantum photonics at microwave frequencies.

关键词： Superconducting circuits Quantum network Quantum computing Flying microwave photon