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| 1 | Copper 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 | 2022 | Nano Research Energy2022,1,2: | 7 |
| 2 | Squalene 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 | 2021 | Cancer Communications2021,41,8: | 4 |
| 3 | Preclinical 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 | 2021 | Acta Pharmaceutica Sinica B2021,11,6: | 3 |
| 4 | Carbon‐based metal‐free catalysts for electrochemical CO2 reduction: Activity, selectivity, and stability显示文摘Zero or negative emissions of carbon dioxide(CO2)is the need of the times,as inexorable rising and alarming levels of CO2 in the atmosphere lead to global warming and severe climate change.The electrochemical CO2 reduction(eCO2R)to value‐added fuels and chemicals by using renewable electricity provides a cleaner and more sustainable route with economic benefits,in which the key is to develop clean and economical electrocatalysts.Carbon‐based catalyst materials possess desirable properties such as high offset potential for H2 evolution and chemical stability at the negative applied potential.Although it is still challenging to achieve highly efficient carbon‐based catalysts,considerable efforts have been devoted to overcoming the low selectivity,activity,and stability.Here,we summarize and discuss the recent progress in carbon‐based metal‐free catalysts including carbon nanotubes,carbon nanofibers,carbon nanoribbons,graphene,carbon nitride,and diamonds with an emphasis on their activity,product selectivity,and stability.In addition,the key challenges and future potential approaches for efficient eCO2R to low carbon‐based fuels are highlighted.For a good understanding of the whole history of the development of eCO2R,the CO2 reduction reactions,principles,and techniques including the role of electrolytes,electrochemical cell design and evaluation,product selectivity,and structural composition are also discussed.The metal/metal oxides decorated with carbon‐based electrocatalysts are also summarized.We aim to provide insights for further development of carbon‐based metal‐free electrocatalysts for CO2 reduction from the perspective of both fundamental understanding and technological applications in the future. | Israr Masood ul Hasan Luwei Peng Jianfeng Mao Ruiman He Yongxia Wang Jing Fu Nengneng Xu Jinli Qiao | 2021 | Carbon Energy2021,3,1: | 2 |
| 5 | Treatment of Chromite Ore Processing Residue by pyrolysis with rice straw显示文摘 | Dalei Zhang Shengbing He Luwei Dai Xiaofang Hu Deyi Wu Kangjin Peng Guanhuan Bu Hao Pang Hainan Kong | 2009 | Chemosphere2009,,8: | 1 |
| 6 | Anion-regulation engineering toward Cu/In/MOF bimetallic electrocatalysts for selective electrochemical reduction of CO_(2) to CO/formate显示文摘The conversion of carbon dioxide(CO_(2))into high-value added energy fuels and chemicals(CO,formate,C_(2)H_(4),etc.)through electrochemical reduction(eCO_(2)R)is a promising avenue to sustainable development.However,low selectivity,barren activity and poor stability of the electrodes hinder the large-scale application of eCO_(2)R.Herein,we reported a copper-indium-organic-framework(CuIn-MOF)based high-performance catalyst for eCO_(2)R.Elec-trochemical measurement results reveal that CuIn-MOF exhibits high Faradaic efficiency(FE)of CO and formate(300 mV,FE_(CO)=78.6%at-0.86 V vs.RHE,FE_(HCOO^(-))=48.4%at-1.16 V vs.RHE,respectively)in a broad range of current density(20.1–88.4 mA cm^(-2))with long-term stability(6 h)for eCO_(2)R in 0.5 M KHCO_(3)electrolyte solution.Specifically,through anion-regulation engineering,SO_(4)^(2-)anion precursor is more beneficial for the formic acid generation than NO_(3)^(-)anion precursor;while for SO_(4)^(2-)anion precursor,Cu plays a positive regulating role in eCO_(2)R to CO compared to In.Additionally,the high performance in a home-made eCO_(2)R reactor derives benefit from enhanced intrinsic activity and charge re-distribution can be attributed to the formation of In-doped Cu layer. | Bingqing Xu Israr Masood Ul Hasan Luwei Peng Junyu Liu Nengneng Xu Mengyang Fan Nabeel Khan Niazi Jinli Qiao | 2022 | Materials Reports(Energy)2022,2,3: | 1 |
| 7 | Halogen-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 | 2022 | Light(Science & Applications)2022,11,7: | 0 |