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| 1 | Control theorem of a universal uniform-rotating magnetic vector for capsule robot in curved environment显示文摘For realizing non-contact steering swimming of a capsule robot in curved environment filled with viscous liquid,based on spatial orthogonal superposition theorem of alternating magnetic vectors,an innovative physical method is proposed,which employs three-axis orthogonal square Helmholtz coils fed with three phase sine currents to create a universal uniform magnetic spin vector as energy source.According to the antiphase sine current superposition theorem generalized in this paper,an effective control method for successively adjusting the orientation and the rotating direction of the universal magnetic spin vector is proposed.For validating its feasibility and controllability,three-axis Helmholtz coils,power source and an innovative capsule robot prototype were manufactured,experiments were conducted in both spiral pipe and animal intestine.It was demonstrated that the orientation and the rotational direction of the universal uniform-magnetic spin vector can be adjusted successively through digital control and steering swimming of the capsule robot in spiral intestine can be achieved successfully.The breakthrough of the universal rotating uniform-magnetic vector will push forward the development of modern physics and biomedical | ZHANG YongShun WANG Na DU ChunYu SUN Ying WANG DianLong | 2013 | Science China(Technological Sciences)2013,56,2: | 16 |
| 2 | Tracing the first hematopoietic stem cell generation in human embryo by single-cell RNA sequencing显示文摘Tracing the emergence of the first hematopoietic stem cells(HSCs)in human embryos,particularly the scarce and transient precursors thereof,is so far challenging,largely due to the technical limitations and the material rarity.Here,using single-cell RNA sequencing,we constructed the first genome-scale gene expression landscape covering the entire course of endothelial-to-HSC transition during human embryogenesis.The transcriptomically defined HSC-primed hemogenic endothelial cells(HECs)were captured at Carnegie stage(CS)12-14 in an unbiased way,showing an unambiguous feature of arterial endothelial cells(ECs)with the up-regulation of RUNX1,MYB and ANGPTL Importantly,subcategorizing CD34+CD45-ECs into a CD44+population strikingly enriched HECs by over 10-fold.We further mapped the developmental path from arterial ECs via HSC-primed HECs to hematopoietic stem progenitor cells,and revealed a distinct expression pattern of genes that were transiently over-represented upon the hemogenic fate choice of arterial ECs#including EMCN,PROCR and RUNX1T1.We also uncovered another temporally and molecularly distinct intra-embryonic HEC population,which was detected mainly at earlier CS 10 and lacked the arterial feature.Finally,we revealed the cellular components of the putative aortic niche and potential cellular interactions acting on the HSCprimed HECs.The cellular and molecular programs that underlie the generation of the first HSCs from HECs in human embryos,together with the ability to distinguish the HSC-primed HECs from others,will shed light on the strategies for the production of clinically useful HSCs from pluripotent stem cells. | Yang Zeng Jian He Zhijie Bai Zongcheng Li Yandong Gong Chen Liu Yanli Ni Junjie Du Chunyu Ma Lihong Bian Yu Lan Bing Liu | 2019 | Cell Research2019,29,11: | 14 |
| 3 | Preparation and characterization of boron-doped corn straw biochar: Fe(Ⅱ) removal equilibrium and kinetics显示文摘Nowadays,iron ions as a ubiquitous heavy metal pollutant are gradually concerned and the convenient and quick removal of excessive iron ions in groundwater has become a major challenge for the safety of drinking water.In this study,boron-doped biochar(B-BC)was successfully prepared at various preparation conditions with the addition of boric acid.The as-prepared material has a more developed pore structure and a larger specific surface area(up to 897.97 m2/g).A series of characterization results shows that boric acid effectively activates biochar,and boron atoms are successfully doped on biochar.Compared with the ratio of raw materials,the pyrolysis temperature has a greater influence on the amount of boron doping.Based on Langmuir model,the maximum adsorption capacity of 800 B-BC1:2 at25℃,40℃,55℃ are 50.02 mg/g,95.09 mg/g,132.78 mg/g,respectively.Pseudo-second-order kinetic model can better describe the adsorption process,the adsorption process is mainly chemical adsorption.Chemical complexation,ions exchange,and co-precipitation may be the main mechanisms for Fe2+removal. | Long Sui Chunyu Tang Qing Du Ying Zhao Kui Cheng Fan Yang | 2021 | Journal of Environmental Sciences2021,33,8: | 6 |
| 4 | Template-directed Synthesis of Three Metal Oxalates via 4-Connected Building Units显示文摘 | TIAN Ruijing WANG Fuxiang DU Chunyu FENG Lijuan LIU Ying ZHANG Cailing PAN Qinhe | 2014 | Chemical Research in Chinese Universities2014,30,6: | 3 |
| 5 | Protection of 3'-methoxy-puerarin against focal brain ischemia and its association with c-fos expression显示文摘The present study established a rat model of focal brain ischemia by occlusion of the middle cerebral artery covered with FeCl3, and investigated the protective effect of 3'-methoxy-puerarin. Hippocampal and cortical c-fos gene expression was determined using in situ hybridization. Results showed that 3'-methoxy-puerarin reduced neurological deficit scores, cerebral infarcted zone and water content of brain tissues, dramatically increased the activity of catalase and glutathione peroxidase in the ischemia zone of the hippocampus, increased the activity of catalase in the cortex, decreased lipid peroxide and lactic acid contents in the hippocampus and cerebral cortex, and down-regulated c-fos gene expression in brain ischemic rats. Results demonstrated that 3'-methoxy-puerarin exhibited cerebroprotective effects against focal brain ischemia, which involved c-fos gene expression. | Sha Liu Yibing Zhang Guiyou Du Yong Zhao Haifeng Cui Chunyu Cao | 2011 | Neural Regeneration Research2011,6,27: | 2 |
| 6 | Postconditioning of stellate ganglion block improves intestinal barrier function by inhibiting autophagy in conscious rats following hemorrhagic shock and resuscitation显示文摘To the Editor:Hemorrhagic shock is a critical pathological process characterized by microcirculation dysfunction and hypoperfusion,with severe consequences of cell damage and organ dysfunction.Intestinal barrier dysfunction is a critical link of distant organ injury caused by hemorrhagic shock.Prophylactic treatment with stellate ganglion block(SGB)significantly reduces hemorrhagic shock-induced intestinal barrier damage. | Zhonghua Li Wendi Wang Qi Sun Tingjiao Suo Jiayi Zhai Huibo Du Zhen’ao Zhao Fulong Li Chunyu Niu Zigang Zhao | 2022 | Chinese Medical Journal2022,,8: | 2 |
| 7 | The regulatory effect of hydrogen sulfide on hypoxic pulmonary hypertension in rats 显示文摘 | Zhang Chunyu Du Junbao Bu Dingfang | 2003 | Biochem Biophys Res Commun2003,302,: | 1 |
| 8 | Artificial photosynthesis bringing new vigor into plastic wastes显示文摘The accumulation of plastic wastes in landfills and the environment threatens our environment and public health,while leading to the loss of potential carbon resources.The urgent necessary lies in developing an energy-saving and environmentally benign approach to upgrade plastic into value-added chemicals.Artificial photosynthesis holds the ability to realize plastic upcycling by using endless solar energy under mild conditions,but remains in the initial stage for plastic upgrading.In this review,we aim to look critically at the photocatalytic conversion of plastic wastes from the perspective of resource reutilization.To begin with,we present the emerging conversion routes for plastic wastes and highlight the advantages of artificial photosynthesis for processing plastic wastes.By parsing photocatalytic plastic conversion process,we demonstrate the currently available routes for processing plastic,including plastic photodegradation,tandem decomposition of plastic and CO_(2) reduction,selective plastic oxidation,as well as photoreforming of plastic.This review concludes with a personal perspective for potential advances and emerging challenges in photocatalytic plastic conversion. | Sailei Kang Tao Sun Yingxin Ma Mengmeng Du Mingfu Gong Chunyu Zhou Yang Chai Bocheng Qiu | 2023 | SmartMat2023,4,4: | 1 |
| 9 | Construction of polysulfides defense system for greatly improving the long cycle life of metal sulfide anodes for sodium-ion batteries显示文摘Metal sulfides are promising anode materials for sodium ion batteries(SIBs)due to their high theoretical specific capacity and abundant source.Nevertheless,significant challenges,including large volume change,sluggish Na^(+)transport kinetics and polysulfides intermediates,have greatly affect their long cycle stability.Unfortunately,the majority of current studies only focus on the first two aspects,but lack of sufficient attention and insights into the effect of polysulfides intermediates.Here,a porous of CoS_(x)(P-CoS_(x))electrode material is fabricated as an example to investigate the influence of polysulfides on its cycling performance.The results show that polysulfides cause a slight loss of reversible capacity during the battery cycling,while the failure of the battery is due to its significant fluctuations in reversible capacity after extensive cycles.Detailed analyses demonstrate that the intense fluctuation in capacity originates from the faster growth of dendrites caused by the reaction of sodium polysulfides with sodium foil and/or the reaction of elemental sulfur with sodium foil to penetrate the separator,resulting in a local short circuit.To suppress these undesirable side reaction,N,S co-doped porous carbon tubes(N,S-PC)rich in C–S and C–N bonds have been added to adsorb polysulfides and alleviate their reaction with sodium foil.As a result,the capacity of the P-CoS_(x) electrode with N,S-PC(P-CoS_(x)/N,S-PC)remains stable without significant fluctuations for 1000 cycles,which is much better than that of the pure P-CoS_(x) electrode(intense fluctuation in capacity after 320 cycles).Our work offers insights into the crucial influence of polysulfides on the cycle performance of the P-CoS_(x) anode and provides a feasible strategy to prolong the cycle life of metal sulfide anode for SIBs. | Xucai Yin Yang Ren Libin Wu Zhiguo Zhang Chunyu Du Jiajun Wang Gepin Yin Hua Huo | 2022 | Journal of Energy Chemistry2022,31,8: | 1 |
| 10 | Electrochemically-driven interphase conditioning of magnesium electrode for magnesium sulfur batteries显示文摘The earth-abundant magnesium metal is a kind of promising anode material due to its low reduction potential (-2.356V vs. SHE), high volumetric and gravimetric specific capacities of 3882 mAh cm-3 and 2234 mAh g_1 respectively [1]. Moreover, the magnesium anode shows high safety due to the non-dentritic electrodeposition mechanism during cycling, which is related to the strong Mg-Mg bonding and the consequent high energy barrier between the crystal boundaries of different crystal orientation [2]. | Yaqi Li Pengjian Zuo Ruinan Li Mengxue He Yulin Ma Yingxin Shi Xinqun Cheng Chunyu Du Geping Yin | 2019 | Journal of Energy Chemistry2019,28,10: | 1 |
| 11 | Electrodepo-sited PdNi2 alloy with novelly enhanced catalytic activity forelectrooxidation of formic acid显示文摘 | Du Chunyu Chen Meng Wang Wengang | 2010 | Electrochemistry Comm-unications2010,12,6: | 1 |
| 12 | Tuning the phase evolution pathway of LiNi_(0.5)Mn_(1.5)O_(4) synthesis from binary intermediates to ternary intermediates with thermal regulating agent显示文摘Transition metal cation ordering is essential for controlling the electrochemical performance of cubic spinel LiNi_(0.5)Mn_(1.5)O_(4)(LNMO),which is conventionally adjusted by optimizing the high temperature sintering and annealing procedures.In this present work,multiple characterization techniques,including 6,7Li NMR,XRD and HRTEM,have been combined to trace the phase transformation and morphology evolution during synthesis.It has been illustrated that simultaneous formation of LiMn_(2)O_(4)(LMO)and LiNiO_(2)(LNO)binary oxides and their conversion into highly reactive LixNi^(3+)_(y)Mn_(3.5+)_(z)O ternary intermediate is a thermal dynamically difficult but crucial step in the synthesis of LNMO ternary oxide.A new strategy of modifying the intermediates formation pathway from binary mode to ternary mode using thermal regulating agent has been adopted.LNMO synthesized with thermal regulating agent exhibits supreme rate capability,long-cycling performance(even at elevated temperature)and excellent capacity efficiency.At a high rate of 100 C,the assembled battery delivers a discharge capacity of 99 mAh g^(-1).This study provides a way to control the formation pathway of complex oxides using thermal regulating agent. | Libin Wu Hua Huo Qun Wang Xucai Yin Shu Guo Jiajun Wang Chunyu Du Pengjian Zuo Geping Yin Yunzhi Gao | 2022 | Journal of Energy Chemistry2022,31,2: | 1 |
| 13 | Impact of hydrogen sulfide on carbon monoxide/heme oxygenase pathway in the pathogenesis of hypoxic pulmonary hypertension显示文摘 | Zhang Qingyou Du Junbao Zhou Weijin Yan Hui Tang Chaoshu Zhang Chunyu | 2004 | Biochemical and Biophysical Research Communications2004,,1: | 1 |
| 14 | The regulatory effect of hydrogen sulfide on hypoxic pulmonary hypertension in rats显示文摘 | Zhang Chunyu Du Junbao Bu Dingfang Yan Hui Tang Xiuying Tang Chaoshu | 2003 | Biochemical and Biophysical Research Communications2003,,4: | 1 |
| 15 | Facile synthesis of hierarchically porous carbons by controlling the initial oxygen concentration in-situ carbonization of ZIF-8 for efficient water treatment显示文摘The state-of-the-art approaches for adjusting the structural characteristics of porous carbons are the aftertreatments, which are complicated and time consuming. In this work, a facile approach was developed, i.e., controlling the initial oxygen concentration in-situ during the direct carbonization of zeolitic imidazole framework-8(ZIF-8), to adjust the pore structure and prepare hierarchically porous carbons. The introduction of oxygen can significantly affect the crystalline and pore structures of porous carbons, and promote the pore widening and the formation of mesopores. An appropriate initial oxygen concentration can notably enhance the surface area and mesopore volume of porous carbon, and then improve the adsorption capacity toward methylene blue(MB) dye from water by 3.4 times. The developed approach is more efficient at lower carbonization temperature.Moreover, the introduction of oxygen can increase the ratio of HO\\C_O groups on the carbon surface, leading to enhanced interaction with MB molecules and higher adsorption capacity toward MB. The as-prepared porous carbons exhibit superior adsorption capacities toward MB dye as compared to the reported ZIF-8 derived carbons. These findings would aid the development of porous carbon materials with high performance. | Na Zhou Yan Du Chunyu Wang Rizhi Chen | 2018 | Chinese Journal of Chemical Engineering2018,26,12: | 1 |
| 16 | Swift Assembly of Adaptive Thermocell Arrays for Device‑Level Healable and Energy‑Autonomous Motion Sensors显示文摘The evolution of wearable technology has prompted the need for adaptive,self-healable,and energy-autonomous energy devices.This study innovatively addresses this challenge by introducing an MXene-boosted hydrogel electrolyte,which expedites the assembly process of flexible thermocell(TEC)arrays and thus circumvents the complicated fabrication of typical wearable electronics.Our findings underscore the hydrogel electrolyte’s superior thermoelectrochemical performance under substantial deformations and repeated self-healing cycles.The resulting hydrogel-based TEC yields a maximum power output of 1032.1 nW under theΔT of 20 K when being stretched to 500%for 1000 cycles,corresponding to 80%of its initial state;meanwhile,it sustains 1179.1 nW under theΔT of 20 K even after 60 cuthealing cycles,approximately 92%of its initial state.The as-assembled TEC array exhibits device-level self-healing capability and high adaptability to human body.It is readily applied for touch-based encrypted communication where distinct voltage signals can be converted into alphabet letters;it is also employed as a self-powered sensor to in-situ monitor a variety of body motions for complex human actions.The swift assembly approach,combined with the versatile functionality of the TEC device,paves the way for future advancements in wearable electronics targeting at fitness monitoring and human–machine interfaces. | Xin Lu Daibin Xie Kaihua Zhu Shouhao Wei Ziwei Mo Chunyu Du Lirong Liang Guangming Chen Zhuoxin Liu | 2023 | Nano-Micro Letters2023,15,11: | 1 |
| 17 | The regulatory effect of hydrogen sulfide on hypoxic pulmonary hypertension in rats显示文摘 | Zhang Chunyu Du Junbao Bu Dingfang | 2003 | Biochem Biophys Res Commun2003,302,4: | 1 |
| 18 | Multilinear modelcontrol of Hammerstein-like systems based on an includedangel dividing method and the MLD-MPC strategy显示文摘 | Du Jingjing Song Chunyue Li Ping | 2009 | Industrial and Engineering Chemical Research2009,48,8: | 1 |
| 19 | The Influence of anode diffusion layer on the performance of direct dimethyl ether fuel cell 显示文摘 | Lebong Xing Zhenbo Wang Chunyu Du | 2012 | International Journal of Energy Research2012,36,7: | 1 |
| 20 | Boron-doped Graphene as Promising Support for Platinum Catalyst with Superior Activity Towards the Methanol Electro Oxidation Reaction显示文摘 | SUN Yongrong DU Chunyu AN Meichen | 2015 | J Power Sources2015,300,: | 1 |