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中国化学快报（英文版）
中国化学快报（英文版）

梁晓天

月刊

1001-8417

cclbj@imm.ac.cn

010-63165638

100050

北京市先农坛街1号

中国化学快报（英文版）/Journal Chinese Chemical LettersCSCDCSTPCD北大核心SCI
查看更多>>本刊是由中国科协主管、中国化学会主办、中国医学科学院药物所承办的学术期刊，是由著名化学家梁晓天院士主编。是中国化学界通向世界的窗口，内容覆盖化学全领域。本刊的办刊宗旨是“新、快、准”，我们将坚持这个宗旨，力求及时反映化学研究中各个相关领域内的最新进展及热点问题，主要读者群是科研人员、研究生、大学教师。现已被国内外多家数据库收录，如SCI　Search、Chemical Abstract、Research Alert、Chemistry Citation Index、《日本科技文献速报》、万方数据数字化期刊群、中国学术期刊过刊全文数据库、中国学术期刊（光盘版）、中国学术期刊文摘、中文期刊全文数据库、俄罗斯Рж期刊源等。
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    Protein-encapsulated long-wavelength fluorescent probe hybrid for imaging lipid droplets in living cells and mice with non-alcoholic fatty liver

    Han-Min WangYan-Chen LiLu-Lu SunMing-Ye Tang...
    448-453页
    查看更多>>摘要：Non-alcoholic fatty liver disease(NAFLD)is prevalent worldwide as a chronic liver disease that not only gives rise to hepatic complications,but leads to other chronic diseases such as type 2 diabetes and atherosclerosis.The aberrant accumulation of lipid droplets(LDs)in hepatocytes is a prominent signa-ture of NAFLD.However,conventional techniques lack the capability to effectively monitor the dynamic changes in LD levels during NAFLD with living organisms.Hence,it is imperative to develop LD-specific long-wavelength fluorescent probes with high imaging contrast for the in-situ diagnosis of NAFLD.In this study,we synthesized a new LD-selective long-wavelength fluorescent probe,denoted as LD-1,based on the twisted intramolecular charge transfer(TICT)mechanism.The probe exhibits a large Stokes shift and intensive fluorescence emission in nonpolar and viscous solutions.By self-assembling LD-1 with bovine serum albumin(BSA),a biocompatible,long-wavelength fluorescent probe hybrid,LD-1@BSA,was formed,allowing for LDs to be selectively imaged in hepatocytes.Moreover,LD-1@BSA successfully dis-criminates NAFLD cells before and after drug treatment,and achieves non-invasive and real-time moni-toring of LD accumulation in a mouse model of NAFLD.
      原文链接:
    • 万方数据
    • 维普

    Benzo[4,5]imidazo[1,2-a]pyrimidine-based structure-inherent targeting fluorescent sensor for imaging lysosomal viscosity and diagnosis of lysosomal storage disorders

    Jiao ChenZihan ZhangGuojin SunYudi Cheng...
    454-460页
    查看更多>>摘要：Benzo[4,5]imidazo[1,2-a]pyrimidine-based derivatives play crucial roles in medicines,pesticides,tracers and photoelectric materials.However,their synthesis approach still needs to be optimized,and their flu-orescent properties in intracellular microenvironment are unclear.Here,a Cu(Ⅱ)-catalyzed cascade cou-pling cyclization reaction was successfully developed to synthesize benzo[4,5]imidazo[1,2-a]pyrimidine scaffold with mild reaction conditions,broad substrate scopes and high yields.After a system study,we found that compound 4aa displayed an optimal viscosity-specific response with remarkable fluorescence enhancement(102-fold)for glycerol at 490 nm.Particularly,4aa possessed excellent structure-inherent targeting(SIT)capability for lysosome(P=0.95)with high pH stability and large Stokes shift.Impor-tantly,4aa was validated for its effectiveness in diagnosing lysosomal storage disorders(LSD)in living cells.The 4aa also showed its potential to map the micro-viscosity and its metabolism process in ze-brafish.This work not only affords an efficient protocol to fabricate benzo[4,5]imidazo[1,2-a]pyrimidine derivatives,reveals this skeleton has excellent SIT features for lysosome,but also manifests that 4aa can serve as a practical tool to monitor lysosomal viscosity and diagnose LSD.
      原文链接:
    • 万方数据
    • 维普

    Novel high-temperature thermochromic polydiacetylene material and its application as thermal indicator

    Zhiqing GeZuxiong PanShuo YanBaoying Zhang...
    461-464页
    查看更多>>摘要：The design and synthesis of organic high-temperature reversible thermochromic materials is one of the difficult issues in the field of organic chromic materials.In this paper,four diacetylene monomers named DBA-PCDA,TBA-PCDA,DBE-PCDA and TBE-PCDA,each containing multiple diacetylene units,were synthesized from 10,12-pentacosadiynoic acid(PCDA)through the amidation or esterification reactions,using 4,4'-diaminobiphenyl,1,3,5-tris(4-aminophenyl)benzene,4,4'-dihydroxybiphenyl,and 1,3,5-tris(4-hydroxyphenyl)benzene as bridging units.The effects of functional groups that can form hydrogen bond and π-π interactions on the solid-state polymerization properties of monomers and the thermochromic properties of the corresponding PDAs were investigated.The results show that only DBA-PCDA and TBA-PCDA,which contain functional groups that can form hydrogen bonding interactions,can be polymer-ized under 254-nm UV irradiation.The corresponding poly(DBA-PCDA)exhibits reversible thermochromic property even heated up to 200 ℃,showing a potential application in the field of high-temperature thermal indicator above 100 ℃.This work provides a new perspective to the development of PDA with high-temperature reversible thermochromic property.
      原文链接:
    • 万方数据
    • 维普

    Mesoporous organic solar cells

    Chengcheng XieChengyi XiaoHongshuo NiuGuitao Feng...
    465-469页
    查看更多>>摘要：The device configuration with mesoporous titanium dioxide(m-TiO2)has garnered considerable atten-tion as a promising solution for high-stable perovskite and dye-sensitized solar cells,although its ap-plication in organic solar cells remains unexplored.In this communication,we have incorporated this structure into both bulk-heterojunction(BHJ)and single-component organic solar cells(SCOSCs).Surpris-ingly,mesoporous OSCs(M-OSCs)demonstrate a deteriorative efficiency in BHJ-type cells,whereas this configuration succeeds in SCOSCs,exhibiting competitive performance with planar OSCs(P-OSCs).This pioneering study has resulted in a competitive power conversion efficiency of 9.67％for m-TiO2-based cells,marking a significant milestone in the advancement of OSCs.Importantly,profiting from the better ultraviolet resistance of m-TiO2 than zinc oxide,this M-OSC exhibits superior photostability than that of P-OSCs when subjected to continuous one-sun(AM1.5G)illumination.In its entirety,this research not only introduces the concept of M-OSCs for the first time but also unveils a novel device architecture poised to address the long-term stability concerns within the realm of OSCs.
      原文链接:
    • 万方数据
    • 维普

    Enhanced circularly polarized luminescence emission promoted by achiral dichroic oligomers of F8BT in cholesteric liquid crystal

    Yang LiYihan ChenJiaxin LuoQihuan Li...
    470-474页
    查看更多>>摘要：In the exploration of circularly polarized luminescence(CPL)materials,doping cholesteric liquid crystals(CLCs)with achiral dyes is a common strategy.Conjugated polymers are favored as achiral dyes for their superior luminescent properties.In this study,a series of oligomers(M1-M3)and the conjugated polymer F8BT were synthesized to systematically assess the impact of the length of the conjugated backbone on CPL signals of CLCs doped with conjugated polymers.As the length rose from M1 to M3,CPL intensity concurrently increased(|gium|increased from 0.35 to 0.84),attributable to enhanced dichroism(order pa-rameter,SF increased from 0.20 to 0.56).In contrast,F8BT polymer resulted in diminished CPL intensity(|glum|=0.64)due to the reduced compatibility.Achieving a balance between dichroism and compati-bility is crucial for optimizing CPL in conjugated polymer-doped CLCs.The guiding principle established here may have broad applicability in other CPL assemblies,offering a strategic avenue to engineer high-performance CPL materials with conjugated polymer.
      原文链接:
    • 万方数据
    • 维普

    Responsive organic room-temperature phosphorescence materials for spatial-time-resolved anti-counterfeiting

    Jiayin ZhouDepeng LiuLongqiang LiMin Qi...
    475-480页
    查看更多>>摘要：Stimulus-responsive room-temperature phosphorescence(RTP)materials have gained significant atten-tion for their important optoelectronic application prospects.However,the fabrication strategy and un-derlying mechanism of stimulus-responsive RTP materials remain less explored.Herein,we present a reliable strategy for achieving pH-responsive RTP materials by integrating poly(vinyl alcohol)(PVA)with carboxylic acid or amino group functionalized terpyridine(Tpy)derivatives.The resulting Tpy derivatives-based RTP materials displayed reversible changes in emission color,intensity,and lifetime of both prompt and delayed emission.Notably,the RTP emission undergoes a significant diminish upon exposure to acid due to the protonation of Tpy units.Taking advantage of the decent RTP emission and pH-responsiveness of these RTP films,a spatial-time-resolved anti-counterfeiting application is demonstrated as a proof-of-concept for largely enhancing the security level.This study not only provides new prospects for develop-ing smart RTP materials but also promotes the advancement of optical anti-counterfeiting applications.
      原文链接:
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    • 维普

    CoSe2 nanowire array enabled highly efficient electrocatalytic reduction of nitrate for ammonia synthesis

    Ting XieXun HeLang HeKai Dong...
    481-485页
    查看更多>>摘要：The electrocatalytic reduction of nitrate(NO3-)not only facilitates the environmentally sustainable pro-duction of ammonia(NH3)but also purifies water by removing NO3-,thereby transforming waste into valuable resources.The process of converting NO3-to NH3 is complex,involving eight electron transfers and multiple intermediates,making the choice of electrocatalyst critical.In this study,we report a cobalt selenide(CoSe2)nanowire array on carbon cloth(CoSe2/CC)as an effective electrocatalyst for the NO3-to NH3 conversion.In an alkaline medium with 0.1 mol/L NO3-,CoSe2/CC demonstrates exceptional NH3 Faradaic efficiency of 97.6％and a high NH3 yield of 517.7 μmol h-1 cm-2 at-0.6 V versus the reversible hydrogen electrode.Furthermore,insights into the reaction mechanism of CoSe2 in the electrocatalytic NO3-reduction are elucidated through density functional theory calculations.
      原文链接:
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    One-step constructing advanced N-doped carbon@metal nitride as ultra-stable electrocatalysts via urea plasma under room temperature

    Tao TangChen LiSipu LiZhong Qiu...
    486-491页
    查看更多>>摘要：Highly active transition metal nitrides are desirable for electrocatalytic reactions,but their long-term sta-bility is still unsatisfactory and thus limiting commercial applications.Herein,for the first time,we report a unique and universal room-temperature urea plasma method for controllable synthesis of N-doped car-bon coated metal(Fe,Co,Ni,etc.)nitrides arrays electrocatalysts.The preformed metal oxides arrays can be successfully converted into metal nitrides arrays with preserved nanostructures and a thin layer of N-doped carbon(N-C)via one-step urea plasma.Typically,as a representative case,N-C@CoN nanowire arrays are illustrated and corresponding formation mechanism by plasma is proposed.Notably,the de-signed N-C@CoN catalysts deliver excellent electrocatalytic activity and long-term stability both in oxy-gen evolution reaction(OER)and urea oxidation reaction(UOR).For OER,a low overpotential(264 mV at 10mA/cm2)and high stability(＞50h at 20 mA/cm2)are acquired.For UOR,a current density of 100mA/cm2 is achieved at only 1.39 V and maintain over 100 h.Theoretical calculations reveal that the synergetic coupling effect of CoN and N-C can significantly facilitate the charge-transfer process,optimize adsorbed intermediates binding strength and further greatly decrease the energy barrier.This strategy provides a novel method for fabrication of N-C@metal nitrides as highly active and stable catalysts.
      原文链接:
    • 万方数据
    • 维普

    Construction of mesoporous silica-implanted tungsten oxides for selective acetone gas sensing

    Jichun LiZhengren WangYu DengHongxiu Yu...
    492-498页
    查看更多>>摘要：As a key biomarker for noninvasive diagnosis of diabetes,the selective detection of trace acetone in ex-haled gas using a portable and low-cost device remains a great challenge.Semiconductor metal oxide(SMO)based gas sensors have drawn signification attention due to their potential in miniaturization,user-friendliness,high cost-effectiveness and selective real-time detection for noninvasive clinical diag-nosis.Herein,we propose a one-pot solvent evaporation induced tricomponent co-assembly strategy to design a novel ordered mesoporous SMO of silica-implanted WO3(SiO2/WO3)as sensing materials for trace acetone detection.The controlled co-assembly of silicon and tungsten precursors and amphiphilic diblock copolymer poly(ethylene oxide)-block-polystyrene(PEO-b-PS),and the subsequent thermal treat-ment enable the local lattice disorder of WO3 induced by the amorphous silica and the formation of ordered mesoporous SiO2/WO3 hybrid walls with a unique metastable e-phase WO3 framework.The ob-tained mesoporous SiO2/WO3 composites possess highly crystalline framework with large uniform pore size(12.0-13.3 nm),high surface area(99-113 m2/g)and pore volume(0.17-0.23 cm3/g).Typically,the as-fabricated gas sensor based on mesoporous 2.5％SiO2/WO3 exhibits rapid response/recovery rate(5/17 s),superior sensitivity(Rair/Rgas=105 for 50 ppm acetone),as well as high selectivity towards acetone.The limit of detection is as low as 0.25 ppm,which is considerably lower than the thresh value of acetone concentration(＞1.1 ppm)in the exhaled breath of diabetic patients,demonstrating its great prospect in real-time monitoring in diabetes diagnosis.Moreover,the mesoporous 2.5％SiO2/WO3 sensor is integrated into a wireless sensing module connected to a smart phone,providing a convenient real-time detection of acetone.
      原文链接:
    • 万方数据
    • 维普

    Vapor-and temperature-triggered reversible optical switching for multi-response Cu8 cluster supercrystals

    Yan WangSi-Meng ZhaiPeng LuoXi-Yan Dong...
    499-504页
    查看更多>>摘要：Multi-response metal cluster supercrystal materials,which can simultaneously display various such as color,photoluminescence,changes by bearing only one stimulus,have huge potential as stimuli-responsive intelligent material,but are rarely reported.Here,we report three Cu8 cluster supercrystals,Cu8-1,Cu8-2,and Cu8-3,with homologous cluster molecule units[Cu8(PNP)3(EPPTA)6](PF6)2 but distinct packing.These supercrystals display bright μs-long photoluminescence with a high quantum yield of up to 26.6％in solid-state at room temperature and aggregation-induced emission(AIE)characteristic.Supe-rior thermal stability and blue-excitable bright yellow emission make Cu8-3 serve as a yellow phosphor for white light-emitting diode.Furthermore,upon being stimulated by solvent vapor and temperature,re-versible supercrystal-to-supercrystal transformations can be witnessed accompanied by remarkable color and luminescence switching.This work not only provides a kind of Cu cluster supercrystal model but also motivates the further development of metal clusters in multi-response materials.
      原文链接:
    • 万方数据