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| 1 | Unraveling specific role of carbon matrix over Pd/quasi-Ce-MOF facilitating toluene enhanced degradation显示文摘Metal organic frameworks(MOFs)derivatives represented by quasi-MOFs have excellent physical and chemical properties and can be applied for the catalytic combustion of volatile organic compounds(VOCs).In this work,Pd/quasi-Ce-BTC synthesized by simple one-step Npyrolysis was applied to the oxidation of toluene,showing excellent toluene catalytic activity(T_(90)=175℃,30000 mL/(g·h)).Microscopic analyses indicate the formation and interaction of a carbon matrix composite quasi-MOF structure interface.The results show that the amorphous carbon matrix formed during the partial pyrolysis of Ce-BTC significantly improves the adsorption and activation capacity of toluene in the reaction,and constructs a reductive system to maintain high concentrations of Ce^(3+)and Pd^(0),which can facilitate the activation and utilization of oxygen in reaction.Quasi in-situ XPS proves that carbon matrix is indirectly involved in the activation and storage of oxygen,and Pd^(0)is the crucial active site for the activation of oxygen.Stability and water resistance tests display good stability of Pd/quasi-Ce-BTC.This work provides a potential method for designing quasi-MOF catalysts towards VOCs effective abatement. | Chunjing Su Zhi Li Mengqi Mao Wenhua Ye Jinping Zhong Quanming Ren Hairong Cheng Haomin Huang Mingli Fu Junliang Wu Yun Hu Daiqi Ye Haihong Xu | 2022 | Journal of Rare Earths2022，40，11： | 2 |
| 2 | Artificial Intelligence Rehabilitation Evaluation and Training System for Degeneration of Joint Disease显示文摘Degeneration of joint disease is one of the problems that threaten global public health.Currently,the therapies of the disease are mainly conservative but not very effective.To solve the problem,we need to find effective,convenient and inexpensive therapies.With the rapid development of artificial intelligence,we innovatively propose to combine Traditional Chinese Medicine(TCM)with artificial intelligence to design a rehabilitation assessment system based on TCM Daoyin.Our system consists of four subsystems:the spine movement assessment system,the posture recognition and correction system,the background music recommendation system,and the physiological signal monitoring system.We incorporate several technologies such as keypoint detection,posture estimation,heart rate detection,and deriving respiration from electrocardiogram(ECG)signals.Finally,we integrate the four subsystems into a portable wireless device so that the rehabilitation equipment is well suited for home and community environment.The system can effectively alleviate the problem of an inadequate number of physicians and nurses.At the same time,it can promote our TCM culture as well. | LIU Weichen SHEN Mengqi ZHANG Anda CHENG Yiting ZHANG Wenqiang | 2021 | ZTE Communications2021，19，3： | 2 |
| 3 | Gelation of Hole Transport Layer to Improve the Stability of Perovskite Solar Cells显示文摘To achieve high power conversion efficiency(PCE) and long-term stability of perovskite solar cells(PSCs), a hole transport layer(HTL) with persistently high conductivity, good moisture/oxygen barrier ability, and adequate passivation capability is important. To achieve enough conductivity and effective hole extraction, spiro-OMe TAD, one of the most frequently used HTL in optoelectronic devices, often needs chemical doping with a lithium compound(LiTFSI). However, the lithium salt dopant induces crystallization and has a negative impact on the performance and lifetime of the device due to its hygroscopic nature. Here, we provide an easy method for creating a gel by mixing a natural small molecule additive(thioctic acid, TA) with spiro-OMe TAD. We discover that gelation effectively improves the compactness of resultant HTL and prevents moisture and oxygen infiltration. Moreover, the gelation of HTL improves not only the conductivity of spiro-OMe TAD, but also the operational robustness of the devices in the atmospheric environment. In addition, TA passivates the perovskite defects and facilitates the charge transfer from the perovskite layer to HTL. As a consequence, the optimized PSCs based on the gelated HTL exhibit an improved PCE(22.52%) with excellent device stability. | Ying Zhang Chenxiao Zhou Lizhi Lin Fengtao Pei Mengqi Xiao Xiaoyan Yang Guizhou Yuan Cheng Zhu Yu Chen Qi Chen | 2023 | Nano-Micro Letters2023，15，10： | 1 |
| 4 | Synergically enhanced piezocatalysis performance of eco-friendly(K_(0.52)Na_(0.48))NbO_(3) through ferroelectric polarization and defects显示文摘Piezocatalysis has attracted unprecedented research interest as a newly emerging catalysis technology.However,the inherent insulating property of ferroelectric materials ultimately leads to the poor vibration-electricity conversion ability.Herein,this work reports the(K_(0.52)Na_(0.48))NbO_(3) ferroelectric ceramics(KNNFCx),for which the FeCo modification strategy is proposed.The substitution of the moderate amount of FeCo(x=0.015)at Nb site not only optimizes ferroelectricity but also produces beneficial defects,notably increasing Rhodamine B water purification efficiency to 95%.The pinning effect of monovalent oxygen vacancies on ferroelectric domains is responsible for the excellent ferroelectric polarization of KNNFC0.015 through the generation of an internal field to promote charge carriers separation and reduce nonradiative recombination.Importantly,the accompanying electron carriers can easily move to the material surface and participate in redox reactions because they have low activation energy.Therefore,ferroelectric polarization and defects play synergetic roles in enhancing piezocatalytic performance. | Min Zhou Laijun Liang Dingze Lu Xiaomei Lu Zheng Wang Fengzhen Huang Pengfei Cheng Dongdong Liu Mengqi Tian Qiuping Wang Yunjie Zhang | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，10： | 1 |
| 5 | Recent progress in synthesis and properties of 2D room-temperature ferromagnetic materials显示文摘Two-dimensional(2D)ferromagnetic materials have important applications in optics,spintronics,biomedicine,and energy conversion fields.To achieve higher integration and continue Moore's Law,it is necessary to search for 2D ferromagnetic materials.However,the low Curie temperature(Tc)of most 2D ferromagnetic materials seriously hinders their practical applications.Therefore,the search for room-temperature 2D ferromagnetic materials is of great significance for the advancement of technological applications.This article provides a systematic and comprehensive review of the synthesis methods of room-temperature 2D ferromagnetic materials that have been discovered and created to date,as well as an overview of the physical properties of the 2D ferromagnetic materials.Finally,the challenges and prospects of the room-temperature 2D ferromagnetic materials in the fields of synthesis and application are briefly summarized. | Lixuesong Han Tingting Cheng Yiran Ding Mengqi Zeng Lei Fu | 2023 | Science China Chemistry2023，66，11： | 0 |
| 6 | Study on Pharmacological Effects of Peikun Pills显示文摘[Objectives]To explore the effects of Peikun Pill on blood pressure of healthy adult male rats.[Methods]The duodenum of anesthetized rats was given different doses of Peikun Pills,normal saline was used as a blank control group,and captopril was used as a positive western medicine control group.The systolic blood pressure,diastolic blood pressure,mean blood pressure and pulse pressure difference(systolic blood pressure-diastolic blood pressure),and heart rate were measured,myocardial tension time index was calculated,and statistical processing was performed.[Results]Peikun Pills have a significant pressure boosting effect,but have no effect on the myocardial tension time index.Captopril has the effects of lowering blood pressure,slowing down the heart rate and reducing the myocardial tension time index,and significantly increasing the pulse pressure difference.[Conclusions]Peikun Pills can increase blood pressure of rats.Peikun Pills are suitable for women with hypotension accompanied by anemia.However,patients with hypertension are prohibited to use. | Renming XIE Jinfeng CHEN Wangting SONG Lin YANG Xinyue ZHANG Lixia ZAN Shanshan ZHAO Mengqi YANG Min CHENG | 2020 | Medicinal Plant2020，11，6： | 0 |
| 7 | A High Selective Chemiluminescent Probe Derived from Iso-luminol Enabling High Sensitive Determination of Ferrous Ions in the Environmental Waters显示文摘A new chemiluminescence(CL)reagent named 4-amino-5-thiocyanato-phthalyl-hydrazine(iso-luminol-SCN)is synthesized by the bromide-mediated substitution reaction of iso-luminol with sodium thiocyanate in dimethyl formamide(DMF)at room temperature.Strong CL is observed for iso-luminol-SCN oxidized by hydrogen peroxide(H2O2)in the presence of Fe^(2+),with the CL intensity strongly depending on the concentration of Fe^(2+)and being hardly interferred by other common metal ions.Based on this fact,a flow injection CL method is established for the high sensitive and selective determination of Fe^(2+).The CL intensity was linearly correlated with the concentration of Fe^(2+)in the range of 1.0×10^(–8) mol·L^(-1) to 1.0×10^(–5) mol·L^(-1) following the equation CLnet=166.3c+57.7(c,×10^(–6) mol·L^(-1);n=7;R2=0.9988).The detection limit is calculated to be 3.2×10–9 mol·L^(-1) Fe^(2+)based on the 3S0/K principle.The relative standard deviation(RSD)was 3.7%for 1.0×10^(–6) mol·L^(-1) Fe^(2+)(n=11),a support for the precision of Fe^(2+)measurement.The recoveries of Fe^(2+)were obtained in the range of 98.8%—101.6%in three real water samples,showing the applicability and reliability by the proposed method.The possible CL mechanism is proposed based on the kinetic characteristic of the CL reaction and the CL spectrum. | Shenghai Zhang Yalin Shi Jiawang Deng Jidong Zhang Mengqi Cheng Geting Yu | 2021 | Chinese Journal of Chemistry2021，39，11： | 0 |
| 8 | The construction of OPA1 overexpression plasmid and the cell model显示文摘The purpose of this study is to construct OPA1 overexpression plasmid and transfected into human neuroblastoma SH-SY5Y cells to test the overexpression efficiency.Human neuroblastoma SH SY5Y cells were transfected with the OPA1 overexpression plasmid by Lipo3000 transfection reagent in liposome transduction technology.A total of 3 groups were set up:the control group,negative control group,and OPA1 overexpression model group.RT-PCR technique was used to detect the expression of OPA1 at mRNA level.In addition,Western blot technique was used to detect the expression of OPA1 at protein level.We found that the mRNA and protein expression of OPA1 were significantly increased after transfection with OPA1 overexpression plasmid.These results highlight using liposome transduction technology,the OPA1 overexpression plasmid was successfully transfected into SH-SY5Y cells by Lipo3000 and the cell model of OPA1 gene overexpression was successully established. | Ma Haojie Gai Cong Feng Wandi Cheng Cuicui Zhou Mengqi Zhang Jinkun Zhang Yuxin Yang Luping Guo Zhenyu Sun Hongmei | 2021 | 解剖学杂志2021，44，S01： | 0 |
| 9 | Mechanism of Buyin Qianzheng Fang on preventing dopamine neuron from apoptosis by regulating intracellular Ca^(2+) in PD Mice显示文摘The purpose of this study is to investigate the possible protective mechanism of Buyin Qianzheng Fang(BYQZF)on endoplasmic reticular and mitochondrial function through intracellular Ca^(2+) to protect dopamine neurons in Parkinson's disease mice model.C57BL/6 mice were randomly divided into normal group,model group,BYQZF group.The behavior of mice was observed by climbing and beam hang tests. | Zhao Haihong Feng Wandi Ma Haojie Cheng Cuicui Zhou Mengqi Gao Yushan Gai Cong Sun Hongsun | 2021 | 解剖学杂志2021，44，S01： | 0 |
| 10 | Effect of Timosaponin B-Ⅱ on morphology and function of mitochondria in PD cell model显示文摘Explore the effect of Timosaponin B-Ⅱ on morphology and function of mitochondria in Parkinson's disease(PD)cell model,and lay the foundation for screening and mechanism research of anti-Parkinson's disease drugs.The PD cell model was constructed by applying MPP+to SH-SY5Y cells for 48 h,and they were treated with low,.medium and high concentrations of Timosaponin B-Ⅱ. | Zhou Mengqi Gai Cong Feng Wandi Ma Haojie Cheng Cuicui Zhao Haihong Zhang Yuxin Zhang Jinkun Yang Luping Sun Hongmei | 2021 | 解剖学杂志2021，44，S01： | 0 |
| 11 | The decadal abrupt change in the global land vapor pressure deficit显示文摘The vapor pressure deficit(VPD) is an important variable used to characterize atmospheric aridity.This paper analyses the spatial and temporal characteristics of the decadal abrupt change(DAC) in the global land VPD after 1980 using monthly scale data from the Climatic Research Unit.The results show that 60.5% of the global land area underwent a significantly increased decadal abrupt change(IDAC) in the VPD,and the persistent IDAC of the VPD was obvious in the middle and low latitudes of Eurasia,Africa and parts of South America but not in central North America or Western Siberia.From 1980 to 2020,most regions experienced no more than two persistent IDACs,while more than two significant increases occurred mainly around the Mediterranean and in eastern South America.The persistent IDAC occurred relatively early in the middle and low latitudes of Eurasia,Africa,and eastern South America and after 2000 in the high latitude regions,Eastern Europe,and near the Qinghai-Tibet Plateau.The regions where the persistent IDAC lasted longer than 10 years mainly included North Africa,West Asia,eastern South America,and parts of East Asia,indicating that the persistent increases in atmospheric aridity in these regions were obvious.In general,the persistent IDAC that began in 1993–2000 was significantly more than that occurred in other periods and lasted longer than that before 1990,suggesting that the land area experiencing an abrupt increase has an expansion after the 1990s and that the role of water limitation in this persistent IDAC in Central Asia and most of China strengthened.In addition,the VPD showed another large-scale persistent IDAC over the global land region in 2009,indicating that global atmospheric aridity intensified over the last decade.At the same time,in a few global regions,the VPD has exhibited decreased decadal abrupt changes(DDACs) with durations shorter than 2 years. | Mengqi CHENG Zhiyan ZUO Zouxing LIN Qinglong YOU Huan WANG | 2023 | Science China Earth Sciences2023，66，7： | 0 |
| 12 | Strigolactones positively regulate abscisic acid-dependent heat and cold tolerance in tomato显示文摘Strigolactones are carotenoid-derived phytohormones that impact plant growth and development in diverse ways.However,the roles of strigolactones in the responses to temperature stresses are largely unknown.Here,we demonstrated that strigolactone biosynthesis is induced in tomato(Solanum lycopersicum)by heat and cold stresses.Compromised strigolactone biosynthesis or signaling negatively affected heat and cold tolerance,while application of the synthetic strigolactone analog GR245DS enhanced heat and cold tolerance.Strigolactone-mediated heat and cold tolerance was associated with the induction of abscisic acid(ABA),heat shock protein 70(HSP70)accumulation,C-REPEAT BINDING FACTOR 1(CBF1)transcription,and antioxidant enzyme activity.Importantly,a deficiency in ABA biosynthesis compromised the GR245DS effects on heat and cold stresses and abolished the GR245DS-induced transcription of HSP70,CBF1,and antioxidant-related genes.These results support that strigolactones positively regulate tomato heat and cold tolerance and that they do so at least partially by the induction of CBFs and HSPs and the antioxidant response in an ABA-dependent manner. | Cheng Chi Xuechen Xu Mengqi Wang Hui Zhang Pingping Fang Jie Zhou Xiaojian Xia Kai Shi Yanhong Zhou Jingquan Yu | 2021 | Horticulture Research2021，8，1： | 0 |
| 13 | Mechanisms of water block removal by surfactant micellar solutions in low permeability reservoirs显示文摘The existing researches on surfactant micellar solutions mainly focus on the formulation optimization and core flooding test, and the types and mechanisms of cleanup additives suitable for low permeability reservoir remain unclear. The flowback efficiencies of different types of surfactant micellar solutions were evaluated by core experiments, a multi-level pore-throat system micromodel characterizing pore-throat structures of low permeability reservoir was made, and flooding and flowback experiments of brine and surfactant micellar solutions of different salinities were conducted with the micromodel to show the oil flowback process in micron pores under the effect of surfactant micellar solution visually and reveal the mechanisms of enhancing displacement and flowback efficiency of surfactant micellar solution. During the displacement and flowback of brine and low salinity surfactant micellar solution, many small droplets were produced, when the small droplets passed through pore-throats, huge percolation resistance was created due to Jamin’s effect, leading to the rise of displacement and flowback pressure differences and the drop of flowback efficiency. The surfactant micellar solutions with critical salinity and optimal salinity that were miscible with crude oil to form Winsor Ⅲ micro-emulsion didnot produce mass small droplets, so they could effectively reduce percolation resistance and enhance oil displacement and flowback efficiency. | LI Junjian LIU Ben GUO Cheng SU Hang YU Fuwei MA Mengqi WANG Lida JIANG Hanqiao | 2022 | Petroleum Exploration and Development2022，49，2： | 0 |
| 14 | Regulation of Axon Initial Segment Diameter by COUP-TFI Fine-tunes Action Potential Generation显示文摘The axon initial segment(AIS)is a specialized structure that controls neuronal excitability via action potential(AP)generation.Currently,AIS plasticity with regard to changes in length and location in response to neural activity has been extensively investigated,but how AIS diameter is regulated remains elusive.Here we report that COUP-TFI(chicken ovalbumin upstream promotor-transcription factor 1)is an essential regulator of AIS diameter in both developing and adult mouse neocortex.Either embryonic or adult ablation of COUP-TFI results in reduced AIS diameter and impaired AP generation.Although COUP-TFI ablations in sparse single neurons and in populations of neurons have similar impacts on AIS diameter and AP generation,they strengthen and weaken,respectively,the receiving spontaneous network in mutant neurons.In contrast,overexpression of COUP-TFI in sparse single neurons increases the AIS diameter and facilitates AP generation,but decreases the receiving spontaneous network.Our findings demonstrate that COUP-TFI is indispensable for both the expansion and maintenance of AIS diameter and that AIS diameter fine-tunes action potential generation and synaptic inputs in mammalian cortical neurons. | Xuanyuan Wu Haixiang Li Jiechang Huang Mengqi Xu Cheng Xiao Shuijin He | 2022 | Neuroscience Bulletin2022，38，5： | 0 |
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