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Coupled chemical reactions: Effects of electric field, diffusion, and boundary control

Physical Review E 2023年第6期108卷 064413-064413页

作者： Shixin Xu Robert Eisenberg Zilong Song Huaxiong Huang Zu Chongzhi Center for Mathematics and Computational Sciences Duke Kunshan University 8 Duke Ave Kunshan Jiangsu 215316 China Department of Applied Mathematics Illinois Institute of Technology Chicago Illinois 60616 USA and Department of Physiology and Biophysics Rush University Chicago Ilinois 60612 USA Math and Statistics Department Utah State University Old Main Hill Logan Utah 84322 USA Research Center for Mathematics Advanced Institute of Natural Sciences Beijing Normal University Zhuhai Guangdong 519088 China Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science BNU-HKBU United International College Zhuhai Guangdong 519088 China Laboratory of Mathematics and Complex Systems MOE Beijing Normal University Beijing 100875 China and Department of Mathematics and Statistics York University Toronto Ontario Canada M3J 1P3

Chemical reactions involve the movement of charges, and this paper presents a mathematical model for describing chemical reactions in electrolytes. The model is developed using an energy variational method that aligns with classical thermodynamics principles. It encompasses both electrostatics and chemical reactions within consistently defined energetic and dissipative functionals. Furthermore, the energy variation method is extended to account for open systems that involve the input and output of charge and mass. Such open systems have the capability to convert one form of input energy into another form of output energy. In particular, a two-domain model is developed to study a reaction system with self-regulation and internal switching, which plays a vital role in the electron transport chain of mitochondria responsible for ATP generation—a crucial process for sustaining life. Simulations are conducted to explore the influence of electric potential on reaction rates and switching dynamics within the two-domain system. It shows that the electric potential inhibits the oxidation reaction while accelerating the reduction reaction.

关键词： Continuum mechanics Dissipative dynamics Electric field effects

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A new OEW microfluidic device based on p-n junction

A new OEW microfluidic device based on p-n junction

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2019 IEEE International Conference on robotics and Biomimetics, ROBIO 2019

作者： Li, Yaqing Huang, Haibo Chen, Liguo Yan, Su Sun, Lining Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University School of Mechanical and Electric Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics Su Zhou215123 China

ISBN: (纸本)9781728163215

Compared with the electrowetting on dielectric (EWOD) microfluidic device, optoelectrowetting (OEW) microfluidic device does not need to control the on-off of single electrode, but only needs to change the lighting condition to control the droplet, simplifying the peripheral control device and improving the stability of the device. The contradiction between the operating voltage and the driving force exists in the existing OEW device. To solve this problem, this paper proposes an OEW device based on diode structure, which uses the photoelectric effect of the diode connected in the DC circuit to control the movement state of the droplet. In this paper, the feasibility of the OEW device with pn structure is theoretically analyzed. Compared with the previous OEW device, under the same applied voltage and the same illumination difference, the potential difference between the diodes in the new device will be significantly larger than the potential difference between the photoresistors, which will effectively improve the driving force of the DC drive. © 2019 IEEE.

关键词： Microfluidics

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Monolithic 3D $\mu$-LED displays through BEOL integration of large-area MoS2 TFT matrix

Monolithic 3D $\mu$-LED displays through BEOL integration of...

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International Electron Devices Meeting (IEDM)

作者： Wanqing Meng Feifan Xu Xue Shen Tao Tao Zhihao Yu Kaichuan Wen Jianpu Wang Feng Qin Xuecou Tu Jing Ning Dong Wang Youdou Zheng Bin Liu Rong Zhang Yi Shi Xinran Wang National Laboratory of Solid State Microstructures School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Nanjing China School of Microelectronics Xidian University Xi'an China College of Electronic and Optical Engineering & College of Microelectronics Nanjing University of Posts and Telecommunications Nanjing China Key Laboratory of Flexible Electronics (KLOFE) & Institution of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University Nanjing Jiangsu China Tianma Microelectronics Co. LTD Shanghai China Microfabrication and Integration Technology Center Nanjing University Nanjing China Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices Xiamen University Xiamen China Tan Kah Kee Innovation Laboratory Institute of future display technology Xiamen China

ISBN: (纸本)9781665425735

Using low-temperature back end of line (BEOL) process, we realize 3D monolithic ultra-high-resolution $\mu$ -LED displays driven by large-area CVD MoS 2 thin-film transistors (TFTs). The MoS 2 transistors exhibit maximum and median mobility of 73 and 54 cm 2 V −1 s −1 , drive current over 200 $\mu \mathrm{A}/\mu \mathrm{m}$ , and excellent uniformity by systematic process innovation and optimization. Benefiting from high-performance TFT, the individual TFT-LED (1T-1D) cell delivers low operating voltage and high luminance of $7.1\times 10^{7}$ cd/m 2 , which satisfies various display applications to the high resolution and brightness limit. We further demonstrate prototypical $32\times 32$ active-matrix (AM) displays at 1270 PPI resolution.

关键词： Three-dimensional displays Two dimensional displays Computer architecture Pulse width modulation Thin film transistors Sulfur Indexes

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BCDAS: Blockchain-assisted Classifiable Data Auditing Scheme with Dynamic Operations

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Blockchain: Research and Applications 2025年

作者： Yuxin Cui Chen Wang Bing Yang Wei Tong Jian Shen School of Information Science and Engineering (School of Cyber Science and Technology) Zhejiang Sci-Tech University Hangzhou 310018 Zhejiang China Zhejiang Provincial Key Laboratory of Digital Fashion and Data Governance Zhejiang Sci-Tech University Hangzhou 310018 Zhejiang China Zhejiang Provincial International Cooperation Base for Science and Technology on Cloud Computing Security and Data Aggregation Zhejiang Sci-Tech University Hangzhou 310018 Zhejiang China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 Zhejiang China School of Computer Science Nanjing University of Information Science Technology Nanjing 210044 Jiangsu China

As cloud computing gains widespread adoption, cloud storage services have become the primary means of data management for users. Authenticated data structures (ADS) are a novel computational model designed to address data authentication problems in distributed environments. With the growing demand for robust data security, vulnerability detection in storage systems has become a critical area of focus to ensure resilience against potential threats. However, traditional ADS, while ensuring consistency between cloud data and source data, have limitations in handling dynamic data operations on multiple types of files, storage space expansion, and single-point failure issues. To tackle these issues, this paper proposes a blockchain-assisted classifiable data auditing scheme with dynamic operations. First, trapdoor hash functions are used to construct a binary tree. During dynamic data operations, the impact of hash updates is confined to a subset of nodes, ensuring global stability and reducing computational resource consumption. Second, innovative data structures and verification mechanisms are introduced, reducing the risk of single-point failures by decentralizing the dependency on verification paths. Finally, data types are confirmed based on data identifiers, and corresponding path information is recorded, enabling efficient and rapid dynamic operations on specific types of files within multi-source data. Both security analysis and performance assessment demonstrate that BCDAS conducts data auditing for with reliability and efficiency.

关键词： Data auditing Dynamic operations Blockchain Trapdoor hash function

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二维/三维异质结构的纳米级相管理以实现高效的钙钛矿太阳能电池（英文）

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Science Bulletin 2024年第18期 2853-2861页

作者：顾浩朱桉楠夏俊民李旺郑嘉豪杨涛李胜文张楠梅时良蔡永青陈石梁超邢贵川 Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications (NUPT) MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of Physics National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology Xi'an Jiaotong University Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems Harbin Institute of Technology Institute for Electric Light Sources School of Information Science and Technology Fudan University

The stabilization of the formamidinium lead iodide （FAPbⅠ3） structure is pivotal for the development of efficient photovoltaic *** two-dimensional （2D） layers to passivate the threedimensional （3D） perovskite is essential for maintaining the a-phase of FAPb Ⅰ3and enhancing the power conversion efficiency （PCE） of perovskite solar cells （PSCs）.However,the role of bulky ligands in the phase management of 2D perovskites,crucial for the stabilization of FAPbⅠ3,has not yet been *** this study,we synthesized nanoscale 2D perovskite capping crusts with

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Effectively Regulating Electrooxidation Pathway of Formic Acid Over Bimetallic PtCo Alloys Via the Integration of Theory and Experiment

SSRN

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SSRN 2024年

作者： Zheng, Zhikeng Liu, Bin Xu, Shaojun Wang, Yuchen Zhang, Man Chen, Yuwen Li, Ziang Wan, Yangyang Catlow, C.A. Richard Yan, Kai Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology School of Environmental Science and Engineering Sun Yat-sen University Guangzhou510275 China Department of Chemical Engineering University of Manchester ManchesterM13 9PL United Kingdom School of Chemistry Cardiff University Main Building Park Place CardiffCF10 3AT United Kingdom Rutherford Appleton Laboratory Research Complex at Harwell R92 Harwell OxfordshireOX11 0FA United Kingdom Institute for Advanced Materials School of Materials Science and Engineering Jiangsu University Zhenjiang212013 China Department of Chemistry University College London 20 Gordon Street LondonWC1H 0AJ United Kingdom

Challenges in directly regulating reaction pathways in small molecules electrooxidation have hindered widespread applications. Hence, we report directly tuning the pathway of formic acid oxidation (FAO) through the integration of theoretical and experimental approaches. DFT calculations indicate that the Pt1Co1 alloy with 50% Co incorporation is an ideal candidate for HCOO* formation with a significantly lower Gibbs free energy (−0.296 eV) compared to that of COOH* (0.028 eV), which reverses the trend on Pt. Guided by theoretical predictions, we fabricate bimetallic PtCo alloys using an eco-friendly microwave method. The Pt1Co1 alloy exhibits a 121-fold increased activity (1.18 A mgPt−1) compared to Pt. In situ infrared spectra confirm that PtCo alloys catalyze FAO through the direct pathway, suggesting a crucial role of Co in enhancing Pt's resistance to CO poisoning, perfectly aligning with the predicted changes. This work provides an essential reference for the rational development of high-efficiency Pt-based alloy electrocatalysts. © 2024, The Authors. All rights reserved.

关键词： Electrocatalysis

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MiRNAs in cancer therapy: Focusing on their bi-directional roles

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ExRNA 2019年第February-March期1卷 1-6页

作者： He, Wei Xu, Jinzhi Huang, Zhen Zhang, Junfeng Dong, Lei State Key Laboratory of Pharmaceutical Biotechnology NJU Advanced Institute for Life Sciences (NAILS) School of Life Sciences Nanjing University 163 Xianlin Avenue Nanjing 210093 China Jiangsu Provincial Laboratory for Nano-Technology Nanjing University Nanjing China

MicroRNA (miRNA) dysregulation is causal in most, if not all, cancers. They silence the gene’s expressionbymodulating messenger RNA (mRNA) through employing translational repression or degradation. MiRNA has the ability to target various genes, which involve various significant signaling pathway in cancer cells, to control cancer development and progression. As a result, manipulating miRNA expression levels for cancer therapy seems an attractive and novel therapeutic approach. However, certain miRNAs, which possess the bi-directional roles, could promote cancer cells growth, but also enhance T-cell immunity. Therefore, miRNA-based therapy could also kill T cells and other lymphocytes, ultimately resulting in promoting cancer growth, which makes miRNA-based cancer therapy process with caution. In this view, we will focus on these miRNAs with the bi-directional roles, and discuss their potential effects to cancer therapy. Ultimately, identified and dissected the miRNAs crossing both T-cell-mediated anti-tumor immunity and tumor cell growth will prove vital for the design of more effective and safer strategies for cancer therapy. © The Author(s).

关键词： Bi-directional roles Cancer therapy MicroRNA T-cell immunity

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China's greenhouse gas budget during 2000-2023

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National Science Review 2025年第4期 24-36页

作者： Wenping Yuan Minqi Liang Yuanyi Gao Ling Huang Li Dan Hongtao Duan Songbai Hong Fei Jiang Weimin Ju Tingting Li Ziyang Lou Shilong Luan Xiao Lu Zhangcai Qin Lishan Ran Lulu Shen Fei Teng Xiangjun Tian Yilong Wang Jing Wei Jiangzhou Xia Xiaosheng Xia Lijun Yu Xu Yue Haicheng Zhang Wen Zhang Yuzhong Zhang Xu Zhao Qiuan Zhu Shilong Piao Xuhui Wang Institute of Carbon Neutrality Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon Cycle Sun Yat-sen University Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of Sciences Key Laboratory of Lake and Watershed Science for Water Security Nanjing Institute of Geography and LimnologyChinese Academy of Sciences State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of Sciences School of Urban Planning and Design Shenzhen Graduate School Peking University Frontiers Science Center for Critical Earth Material Cycling Nanjing University Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology International Institute for Earth System Science Nanjing University Key Laboratory of Atmospheric Environment and Extreme Meteorology Institute of Atmospheric PhysicsChinese Academy of Sciences Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery School of Environmental Science & Engineering Shanghai Jiao Tong University Department of Geography The University of Hong Kong Department of Atmospheric and Oceanic Sciences School of PhysicsPeking University Institute of Energy Environment and Economy Tsinghua University State Key Laboratory of Tibetan Plateau Earth System Resources and Environment (TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of Sciences Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal University State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC) Institute of Atmospheric PhysicsChinese Academy of Sciences Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment Technology School of

National greenhouse gas（GHG） budget,including CO2,CH4and N2O has increasingly become a topic of concern in international climate *** is paying increasing attention to reducing GHG emissions and increasing land sinks to effectively mitigate climate *** estimates of GHG fluxes are crucial for monitoring progress toward mitigating GHG emissions in *** study used comprehensive methods,including emission factor methods,process-based models,atmospheric inversions,and data-driven models,to estimate the long-term trends of GHG sources and sinks from all anthropogenic and natural sectors in China's mainland during 2000-2023,and produced an up-to-date China GHG Budget dataset（CNGHG）.The total gross emissions of the three GHGs show a 3-fold increase from 5.0（95% CI:4.9-5.1） Gt CO2-eq yr-1（in 2000） to 14.3（95% CI:13.8-14.8） Gt CO2-eqyr-1（in2023）.CO2emissions represented 81.8% of the GHG emissions in 2023,while 12.7% and 5.5% were for CH4and N2O,*** the largest CO2source,the energy sector contributed 87.4% *** contrast,the agriculture,forestry and other land use sector was the largest sector of CH4and N2O,representing 50.1% and 6 6.3% emissions,***,China's terrestrial ecosystems serve as a net CO2sink(1.0 Gt CO2yr-1,9596 CI:0.2-1.9 Gt CO2yr-1) during 2012 to 2021,equivalent to an average of 14.3% of fossil *** GHG emission estimates showed a general consistency with national GHG inventories,with gridded and sector-specific estimates of GHG fluxes over China,providing the basis for curtailing GHG emissions for each region and sector.

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Electrically switchable quantum anomalous and spin Hall states in two-dimensional honeycomb lattices with non-Dirac bands

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Physical Review B 2025年第23期111卷 235414-235414页

作者： Sihui Wu Jiahui Qian Xunkai Duan Xianzhang Chen Zhou Cui Jiayong Zhang Chunlan Ma Tong Zhou Key Laboratory of Efficient Low-carbon Energy Conversion and Utilization of Jiangsu Provincial Higher Education Institutions School of Physical Science and Technology Suzhou University of Science and Technology Suzhou 215009 China Eastern Institute for Advanced Study Eastern Institute of Technology Ningbo Zhejiang 315200 China School of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China International Center for Quantum Design of Functional Materials (ICQD) and Hefei National Laboratory University of Science and Technology of China Hefei 230026 China

Two-dimensional (2D) honeycomb lattices provide a versatile platform for realizing topologically nontrivial states. In this work, we uncover the coexistence and electrical tunability of quantum anomalous Hall (QAH) and quantum spin Hall (QSH) states in 2D honeycomb lattices characterized by non-Dirac band structures. Employing a tight-binding model, we demonstrate that px and py orbitals lead to quadratic non-Dirac band degeneracies at the Γ point and linear Dirac band degeneracies at the K and K′ points. The introduction of a magnetic exchange field and atomic spin-orbit coupling can induce distinct QAH and QSH gaps at separate energy levels within the same system. First-principles calculations validate these findings in a ferromagnetic monolayer of functionalized plumbene (Pb2BrO), predicting sizable QAH (175.4 meV) and QSH (187.8 meV) gaps. Notably, the Fermi energy of monolayer Pb2BrO resides in the QAH gap but can be electrically gated into the QSH gap, enabling reversible transitions between these two topologically nontrivial states. These results provide a theoretical foundation for the design of electrically tunable topological materials and establish 2D honeycomb lattices with non-Dirac bands as a promising platform for multifunctional quantum applications.

关键词： Crystal lattices

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Conductive Hydrogel for a Photothermal-Responsive Stretchable Artificial Nerve and Coalescing with a Damaged Peripheral Nerve

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ACS nano 2020年第12期14卷 16565-16575页

作者： Mei Dong Bo Shi Dun Liu Jia-Hao Liu Di Zhao Zheng-Hang Yu Xiao-Quan Shen Jia-Min Gan Ben-Long Shi Yong Qiu Chang-Chun Wang Ze-Zhang Zhu Qun-Dong Shen Department of Polymer Science and Engineering Key Laboratory of High-Performance Polymer Materials and Technology of MOE School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 PR China. School of Pharmacy Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 PR China. Jiangsu Provincial Key Laboratory of Chinese Medicine Processing Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 PR China. Department of Spine Surgery Affiliated Drum Tower Hospital of Nanjing University Nanjing Jiangsu 210008 PR China. College of Material Science and Engineering Nanjing Institute of Technology Nanjing Jiangsu 211167 PR China. Jiangsu key laboratory of Advanced Structural Materials & Application Technology Nanjing Jiangsu 211167 PR China.

Modern development of flexible electronics has made use of bioelectronic materials as artificial tissue . As hydrogels are more similar to nerve tissue, functional hydrogels have become a promising candidate for bioelectronics. Meanwhile, interfacing functional hydrogels and living tissues is at the forefront of bioelectronics. The peripheral nerve injury often leads to paralysis, chronic pain, neurologic disorders, and even disability, because it has affected the bioelectrical signal transmission between the brain and the rest of body. Here, a kind of light-stimuli-responsive and stretchable conducting polymer hydrogel (CPH) is developed to explore artificial nerve. The conductivity of CPH can be enhanced when illuminated by near-infrared light, which can promote the conduction of the bioelectrical signal. When CPH is mechanically elongated, it still has high durability of conductivity and, thus, can accommodate unexpected strain of nerve tissues in motion. Thereby, CPH can better serve as an implant of the serious peripheral nerve injury , especially in the case that the length of the missing nerve exceeds 10 mm.

关键词： artificial nerve conductive hydrogel light responsive materials photothermal effects stretchable bioelectronics

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