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12篇 您的检索式:作者名="Luwei Li"
    题名 作者 年代 出处 被引量
1Copper as a single metal atom based photo-,electro-,and photoelectrochemical catalyst decorated on carbon nitride surface for efficient CO_(2) reduction:A review显示文摘The processes of photocatalytic CO_(2) reduction(pCO_(2)R)and electrochemical CO_(2) reduction(ECO_(2)R)have attracted considerable interest owing to their high potential to address many environmental and energy-related issues.In this aspect,a single Cu atom decorated on a carbon nitride(CN)surface(Cu-CN)has gained increasing popularity because of its unique advantages,such as excellent atom utilization and ultrahigh catalytic activity.CN-particularly graphitic CN(g-C_(3)N_(4))-is a photo-and electrocatalyst and used as an important support material for single Cu atom-based catalysts.These key functions of Cu-CN-based catalysts can improve the catalytic performance and stability in the pCO_(2)R and ECO_(2)R during the application process.In this review,we focus on Cu as a single metal atom decorated on CN for efficient photoelectrochemical CO_(2) reduction(pECO_(2)R),where ECO_(2)R increases the electrocatalytic active area and promotes electron transfer,while pCO_(2)R enhances the surface redox reaction by efficiently using photogenerated charges and offering integral activity as well as an active interface between Cu and CN.Interactions of single Cu atom-based photo-,electro-,and photoelectrochemical catalysts with g-C_(3)N_(4) are discussed.Moreover,for a deeper understanding of the history of the development of pCO_(2)R and ECO_(2)R,the basics of CO_(2) reduction,including pCO_(2)R and ECO_(2)R over g-C_(3)N_(4),as well as the structural composition,characterization,unique design,and mechanism of a single atom site are reviewed in detail.Finally,some future prospects and key challenges are discussed.Lulu Li Israr Masood ul Hasan Farwa Ruinan He Luwei Peng Nengneng Xu Nabeel Khan Niazi Jia-Nan Zhang Jinli Qiao 2022Nano Research Energy2022,1,2:7
2Squalene epoxidase promotes colorectal cancer cell proliferation through accumulating calcitriol and activating CYP24A1-mediatedMAPK signaling显示文摘Background:Colorectal cancer(CRC)is one of the most malignant tumorswith high incidence,yet its molecular mechanism is not fully understood,hindering the development of targeted therapy.Metabolic abnormalities are a hallmark of cancer.Targeting dysregulated metabolic features has become an important direction for modern anticancer therapy.In this study,we aimed to identify a new metabolic enzyme that promotes proliferation of CRC and to examine the related molecular mechanisms.Methods:We performed RNA sequencing and tissue microarray analyses of human CRC samples to identify new genes involved in CRC.Squalene epoxidase(SQLE)was identified to be highly upregulated in CRC patients.The regulatory function of SQLE in CRC progression and the therapeutic effect of SQLE inhibitors were determined by measuring CRC cell viability,colony and organoid formation,intracellular cholesterol concentration and xenograft tumor growth.Themolecularmechanism of SQLE functionwas explored by combining transcriptome and untargeted metabolomics analysis.Western blotting and realtime PCR were used to assess MAPK signaling activation by SQLE.Results:SQLE-related control of cholesterol biosynthesis was highly upregulated in CRC patients and associated with poor prognosis.SQLE promoted CRC growth in vitro and in vivo.Inhibition of SQLE reduced the levels of calcitriol(active form of vitamin D3)and CYP24A1,followed by an increase in intracellular Ca2+concentration.Subsequently,MAPK signaling was suppressed,resulting in the inhibition of CRC cell growth.Consistently,terbinafine,an SQLE inhibitor,suppressed CRC cell proliferation and organoid and xenograft tumor growth.Conclusions:Our findings demonstrate that SQLE promotes CRC through the accumulation of calcitriol and stimulation of CYP24A1-mediated MAPK signaling,highlighting SQLE as a potential therapeutic target for CRC treatment.Luwei He Huaguang Li Chenyu Pan Yutong Hua Jiayin Peng Zhaocai Zhou Yun Zhao Moubin Lin 2021Cancer Communications2021,41,8:4
3Performance analysis of a single-stage scroll compressor used in a drying heat pump over a wide condensing temperature range(30–80°C)显示文摘This study presents the performance of a new single-stage scroll compressor used for the heat pump drying of thermally sensitive materials over a wide temperature range.The performance of the new compressor was predicted by an ARI standard 540map-based compressor model and verified by a semi-open drying heat pump system constructed for this purpose.A comparison of the experimental data with the predicted data proved that the new scroll compressor used in the drying heat pump works well,can supply a wide range of condensing temperatures(30–80°C)(without auxiliary heating),and has a minimum coefficient of performance(COP)above 2.0,even in the worst condition.WEI Juan YANG LuWei ZHANG ZhenTao LIN XueJun ZHANG Chong LI Bo 2014Science China(Technological Sciences)2014,57,11:3
4Preclinical efficacy against acute myeloid leukaemia of SH1573, a novel mutant IDH2 inhibitor approved for clinical trials in China显示文摘Acute myeloid leukaemia(AML) is the most common form of acute leukaemia in adults,with increasing incidence with age and a generally poor prognosis.Almost 20% of AML patients express mutant isocitrate dehydrogenase 2(mIDH2),which leads to the accumulation of the carcinogenic metabolite 2-hydroxyglutarate(2-HG),resulting in poor prognosis.Thus,global institutions have been working to develop mIDH2 inhibitors.SH1573 is a novel mIDH2 inhibitor that we independently designed and synthesised.We have conducted a comprehensive study on its pharmacodynamics,pharmacokinetics and safety.First,SH1573 exhibited a strong selective inhibition of mIDH2 R140 Q protein,which could effectively reduce the production of 2-HG in cell lines,serum and tumors of an animal model.It could also promote the differentiation of mutant AML cell lines and granulocytes in PDX models.Then,it was confirmed that SH1573 possessed characteristics of high bioavailability,good metabolic stability and wide tissue distribution.Finally,toxicological data showed that SH1573 had no effects on the respiratory system,cardiovascular system and nervous system,and was genetically safe.This research successfully promoted the approval of SH1573 for clinical trials(CTR20200247).All experiments demonstrated that,as a potential drug against mIDH2 R140 Q acute myeloid leukaemia,SH1573 was effective and safe.Zhiqiang Wang Zhibo Zhang Yong Li Li Sun Dezhen Peng Danyu Du Xian Zhang Luwei Han Liwen Zhao Ligong Lu Hongzhi Du Shengtao Yuan Meixiao Zhan 2021Acta Pharmaceutica Sinica B2021,11,6:3
5Synthesis, adsorption and selectivity of inverse emulsion Cd(Ⅱ) imprinted polymers显示文摘Inverse emulsion polymerization was employed to synthesize inverse emulsion Cd(II) imprinted polymers(IEII P). The morphology and functional groups of IEIIP were characterized by SEM,FTIR and TG. Static adsorption experiments and competitive adsorption test were used to evaluate the adsorption ability of IEIIP. The adsorption capacity of polymers could reach 86.7 mg·g^(-1) under the optimal adsorption conditions. The pseudo second order kinetic model and Langmuir isotherm model could be used to analyze the experimental data well. The adsorption process of IEIIP was chemical adsorption process and monomolecular type. Thermodynamic parameters showed that the adsorption process was endothermic and could occur spontaneously. The selectivity coefficients k of Cd^(2+)/Pb^(2+), Cd^(2+)/Zn^(2+) and Cd^(2+)/Cu^(2+) were 2.4998, 1.2437 and 4.6882, respectively. The proposed method provides a new thought for removing Cd(II) in water samples.Luwei Li Fang Zhu Yanhong Lu Jian Guan 2018Chinese Journal of Chemical Engineering2018,26,3:2
6Optimization of environmental maintenance system used in a refuge chamber显示文摘Junling Yang Luwei Yang Chong Zhang Zhentao Zhang Xiaojiang Li 2015International Journal of Coal Science & Technology2015,2,4:2
7RRVPE:A Robust and Real-Time Visual-Inertial-GNSS Pose Estimator for Aerial Robot Navigation显示文摘Self-localization and orientation estimation are the essential capabilities for mobile robot navigation.In this article,a robust and real-time visual-inertial-GNSS(Global Navigation Satellite System)tightly coupled pose estimation(RRVPE)method for aerial robot navigation is presented.The aerial robot carries a front-facing stereo camera for self-localization and an RGB-D camera to generate 3D voxel map.Ulteriorly,a GNSS receiver is used to continuously provide pseudorange,Doppler frequency shift and universal time coordinated(UTC)pulse signals to the pose estimator.The proposed system leverages the Kanade Lucas algorithm to track Shi-Tomasi features in each video frame,and the local factor graph solution process is bounded in a circumscribed container,which can immensely abandon the computational complexity in nonlinear optimization procedure.The proposed robot pose estimator can achieve camera-rate(30 Hz)performance on the aerial robot companion computer.We thoroughly experimented the RRVPE system in both simulated and practical circumstances,and the results demonstrate dramatic advantages over the state-of-the-art robot pose estimators.ZHANG Chi YANG Zhong XU Hao LIAO Luwei ZHU Tang LI Guotao YANG Xin ZHANG Qiuyan 2023Wuhan University Journal of Natural Sciences2023,28,1:2
8Exploration and Practice of the Industry-University Cooperation Mechanism to Improve the Quality of the Software Personnel Training显示文摘LI Hong-mei LUWei ZHANG Hong-yan 2009Journal of Nanjing University: Natural Science2009,45,10:1
9Risk of simulated microgravity on testicular injury induced by high-LET carbon-ion beams in mice显示文摘This study investigated the impact of simulated microgravity on acute injury induced by low doses of carbon ions in male reproductive organs of mice,and determined alterations in spermatogenic function and expression levels of apoptotic factors in mice following exposure to acute irradiation after 7 days of simulated microgravity.The results demonstrated that significant reductions in spermatozoa,primary spermatocytes and spermatogonia,and increased globular cells in seminiferous tubule and pro-apoptotic proteins were observed in the group exposed to over0.4 Gy irradiation.Collectively,the data suggest that lesions inflicted by simulated microgravity are not markedly modified by lower doses of irradiation(0.2 Gy)in mouse testis compared to the control group.However,testicular impairments were markedly evident in the group exposed to higher doses of carbon ions plus simulated microgravity,which may be due at least in part to elevated apoptosis initiated by the mitochondrial apoptosis pathway in germ cells.LIU Yang ZHANG Luwei ZHANG Hong WU Zhenhua Wang Zhenhua WANG Yibo LI Hongyan MA Xiaofei XIE Yi 2013Nuclear Science and Techniques2013,24,6:1
10Construction of AIEgen functionalized nanomicelles and their stability study through‘seesaw-like'fluorescence changes显示文摘As nanocarriers,nanomicelles play vital roles in the toolbox of drug delivery.The stability of nanomicelles affects the nanomedicines'bioactivity.Therefore,it is important to understand the stability of nanomicelles for further improvements.Here,we report a strategy to construct new nanomicelles(NM)by introducing aggregation-induced emission(AIE)functional group tetraphenylethylene(TPE)in the component polymer vitamin E(D-α-tocopheryl polyethylene glycol 1000 succinate)(TPGS).The stability of doxorubicin(DOX)loaded nanomicelles DOX@NM in different conditions was studied by fluorescence analysis.The fluorescence changes of DOX@NM are‘seesaw-like'when they transform between assembled and disassembled forms.In the assembled form,TPE gives emission from AIE effect,while in the disassembled form,the fluorescence of DOX is observed due to the disappearance of ACQ effect.Xiaotong Wang Shizhu Chen Yaru Jia Kaihan Zhang Lili Ma Luwei Li Xingjie Liang Jinchao Zhang 2023Chinese Chemical Letters2023,34,6:0
11Estimation of multivariate detection limits of four quality parameters in licorice using MEMS–NIR spectrometry coupled with two sampling accessories显示文摘In this work,multivariate detection limits(MDL)estimator was obtained based on the microelectro-mechanical systems–near infrared(MEMS–NIR)technology coupled with two sampling accessories to assess the detection capability of four quality parameters(glycyrrhizic acid,liquiritin,liquiritigenin and isoliquiritin)in licorice from di®erent geographical regions.112 licorice samples were divided into two parts(calibration set and prediction set)using Kennard–Stone(KS)method.Four quality parameters were measured using high-performance liquid chromatography(HPLC)method according to Chinese pharmacopoeia and previous studies.The MEMS–NIR spectra were acquired from¯ber optic probe(FOP)and integrating sphere,then the partial least squares(PLS)model was obtained using the optimum processing method.Chemometrics indicators have been utilized to assess the PLS model performance.Model assessment using chemometrics indicators is based on relative mean prediction error of all concentration levels,which indicated relatively low sensitivity for low-content analytes(below 1000 parts per million(ppm)).Therefore,MDL estimator was introduced with alpha error and beta error based on good prediction characteristic of low concentration levels.The result suggested that MEMS–NIR technology coupled with fiber optic probe(FOP)and integrating sphere was able to detect minor analytes.The result further demonstrated that integrating sphere mode(i.e.,MDL0:05;0:05,0.22%)was more robust than FOP mode(i.e.,MDL0:05;0:05,0.48%).In conclusion,this research proposed that MDL method was helpful to determine the detection capabilities of low-content analytes using MEMS–NIR technology and successful to compare two sampling accessories.Zhisheng Wu Xinyuan Shi Na Zhao Yanling Pei Manfei Xu Luwei Zhou Yang Li Yanjiang Qiao 2015Journal of Innovative Optical Health Sciences2015,8,5:0
12Halogen-doped phosphorescent carbon dots for grayscale patterning显示文摘Flexible organic materials that exhibit dynamic ultralong room temperature phosphorescence(DURTP)via photoactivation have attracted increasing research interest for their fascinating functions of reversibly writing-reading-erasing graphic information in the form of a long afterglow.However,due to the existence of a nonnegligible activation threshold for the initial exposure dose,the display mode of these materials has thus far been limited to binary patterns.By resorting to halogen element doping of carbon dots(CDs)to enhance intersystem crossing and reduce the activation threshold,we were able to produce,for the first time,a transparent,flexible,and fully programmable DURTP composite film with a reliable grayscale display capacity.Examples of promising applications in UV photography and highly confidential steganography were constructed,partially demonstrating the broad future applications of this material as a programmable platform with a high optical information density.Yanfeng Liu Mahmoud Al-salihi Yong Guo Roman Ziniuk Songtao Cai Luwei Wang Yuan Li Zhigang Yang Dengfeng Peng Kai Xi Zhongfu An Xudong Jia Liwei Liu Wei Yan Junle Qu 2022Light(Science & Applications)2022,11,7:0
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