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Recent Advances in Boron-Containing Acenes:Synthesis,Properties,and Optoelectronic Applications

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Chinese Journal of Chemistry 2023年第11期41卷 1355-1373页

作者： Yongkang Guo Cheng Chen xiao-ye wang State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin300071 China

Acenes with linearly fused benzene rings have attracted much attention due to their intriguing optical and electronic ***,the poor ambient stability of longer acenes has hampered the investigation of their physicochemical properties and potential *** incorporation of main group elements into the acene backbones provides a viable strategy to enhance the stability,and meanwhile,generates a new family of heteroatom-doped acenes(namely heteroacenes)with modified properties and *** particular,boron-containing acenes represent an attractive class of heteroacenes owing to the existence of vacant p orbital of boron,which endows theπ-conjugated systems with appealing features,such as Lewis acidity,electron-accepting capability,stimuli-responsivity,and adjustable photophysical *** the past decade,significant progress has been achieved in the synthesis and applications of boron-containing acenes,but a focused review on this topic has been ***,we summarize the recent advances in the studies on boron-containing acenes,covering their synthesis,intriguing properties,and various applications in electroluminescence and electronic devices,as well as in biosensors,*** hope that this timely review will stimulate new research interest in this unique family of materials and promote their optoelectronic applications.

关键词： Acenes Boron Heteroacenes Luminophores Multi-color emission Light-emitting devices Organic optoelectronics Organicsemiconductors

Heteroatom-Doped Graphene Nanoribbons:Precision Synthesis and Emerging Properties

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Chinese Journal of Chemistry 2024年第22期42卷 2877-2894页

作者： Pei-Han Gao Cheng Chen xiao-ye wang State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Centerfor New Organic MatterCollege of Chemistry.Nankai UniversityTianjin 300071China Beijing National Laboratory for Molecular Sciences Beijing 100190China

Comprehensive Summary Graphene nanoribbons(GNRs),which can be considered as a special type of conjugated polymers,are quasi-one-dimensional graphene cutouts with an opened band gap,revealing great potential as functional materials in optoelectronic,spintronic,and energy-related *** effective strategy to modulate the properties of GNRs is doping heteroatoms into theπ-*** to the bottom-up synthetic approach,a number of heteroatom-doped GNRs with precise structures have been reported,exhibiting intriguing ***,a comprehensive summary of the progress of this field has remained *** this review,we summarize the history and advances in bottom-up synthesized heteroatom-doped GNRs,including their synthetic routes,electronic properties,and promising *** hope to establish the reliable structure–property relationship,and provide guidance for the molecular design of heteroatom-doped GNRs in the future.

关键词： Graphene nanoribbons Heteroatom Doping Polymers Surface chemistry Nanostructures Semiconductors Nanotechnology

Lighting up nonbenzenoid acepleiadylene with ultra-narrowband emission through aromaticity modulation

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Science China Chemistry 2023年第12期66卷 3506-3510页

作者： Pengcai Liu xiao-Yu Tang Cheng-Zhuo Du Rui Xue Xing-Yu Chen Jiawen Cao xiao-ye wang State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin 300071China

Nonbenzenoid polycyclic arenes have attracted great attention because of their unique topological structures and appealing properties;however,they are generally considered as poor luminescent materials due to the ring puckering behavior of the ***(APD),a nonbenzenoid isomer of pyrene,has been demonstrated as an excellent building block for optoelectronic applications,but its poor photoluminescence quantum yield(PLQY)has hampered its application in luminescent *** that the ring puckering character can be suppressed by increasing the rigidity of the nonhexagon rings,herein,we propose a novel strategy for enhancing the aromaticity of the nonhexagons to improve the PLQYs of APD ***-withdrawing cyano groups are introduced on the five-membered ring of APD to enhance the chargeseparated character and thus the aromaticity of the nonhexagons,endowing the cyano-substituted APDs(CNAPD and 2CNAPD)with better ***,the cyano substitution successfully suppresses the nonradiative energy dissipation caused by the ring puckering,improving the PLQY from 2.4%for APD to 14%for CNAPD,and to 63%for *** addition,the enhanced rigidity also suppresses the vibration sideband of the photoluminescence spectra,leading to an ultra-narrowband emission from 2CNAPD with a full-width at half-maximum(FWHM)of 13 nm(47 me V),which is a new record in organic *** results demonstrate that APD derivatives have great potential in highly efficient luminescent materials with high color purity via the aromaticity regulation strategy,which provides a novel concept for designing nonbenzenoid luminescent materials.

关键词： nonbenzenoid arenes luminescence narrowband emission acepleiadylene

Helicene-type β-isoindigo-based boron-dipyrromethene analogs with strong near-infrared chiroptical activity

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Aggregate 2024年第3期5卷 268-274页

作者： Ziwei Chen Zhigang Ni Xing-Yu Chen Yongqiang Xu Chunyan Yu SiSi wang xiao-ye wang Hua Lu Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education and Key Laboratory of Organosilicon Material Technology of Zhejiang ProvinceCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhouChina State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjinChina

Near-infrared(NIR)chiroptical response has been less explored because it is chal-lenging to achieve both chirality and NIR absorption/***,we describe the design of heterohelicene-typeβ-isoindigo-based boron-dipyrromethene(BOD-IPY)analogs(β-IBs),which shift the absorption peak to 800 nm and produce significant Cotton effects(127.8 M-1 cm-1)and absorbance dissymmetry factors(|gabs|3.5=×10-3).The luminescence dissymmetry factor(glum)and circu-larly polarized luminescence(CPL)brightness(BCPL)of up to 1.24×10-3 and 1.78 M-1 cm-1 were realized beyond 800 ***β-IBs are thefirst examples of helicene-type compounds with the highest gabs in the NIR region and CPL beyond 800 *** calculations demonstrate that the strong chiroptical activities are triggered by their large transition magnetic dipole *** study not only provides a new approach to the synthesis of a larger variety of unprecedented helicene-type BODIPY analogs but also demonstrates excellent NIR chiroptical properties.

关键词： BODIPY chiroptical activity circularly polarized luminescence helicene near-infrared

Deposition Technology and Microhardness of Electrochemical Deposited Ni- W Alloy Nanocrystalline

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材料热处理学报 2004年第05B期25卷 1279-1282页

作者： WUYu-cheng SHUXia wangLi-ping HUxiao-ye wangWen-fang HUANGXin-min FacultyofMaterialsScienceandEngineeringHefeiUniversityofTechnology 230009HefeiP.R.China

In this paper, a perpendicular experiment was conducted by using 4 key process parameters, such as concentration of sodium tungstate, current density, PH value and operating temperature, which have obvious influence on the electrodeposition of Ni-W alloy nanocrystalline. By extreme difference analysis, the influence of multi-factors on the deposition rate and microhardness and surface quality of the nanocrystalline alloy coatings was studied in detail. By further contrastive experiment, the influence of single-factor on the electrodeposition of Ni-W alloy nanocrystalline was also discussed, which will provide basis for the preparation of Ni-W alloy nanocrystalline.

关键词：显微硬度电泳沉积 Ni-W合金毫微结晶

Gut microbiota dysbiosis in preeclampsia patients in the second and third trimesters

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Chinese Medical Journal 2020年第9期133卷 1057-1065页

作者： Jing wang Zhong-Hua Shi Jing Yang Yuan Wei xiao-ye wang Yang-Yu Zhao Department of Obstetrics and Gynecology Peking University Third HospitalBeijing 100191China Department of Obstetrics and Gynecology Women’s Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjingJiangsu 210011China

Background:Preeclampsia(PE)is a serious complication that affects maternal and perinatal ***,the mechanisms have not been fully *** study was designed to analyze longitudinal gut microbiota alterations in pregnant women with and without PE in the second(T2)and third trimesters(T3).Methods:In this nested case-control study,which was conducted at Nanjing Maternity and Child Health Care Hospital,fecal samples from 25 PE patients(25 fecal samples obtained in T2 and 15 fecal samples obtained in T3)and 25 matched healthy controls(25 fecal samples obtained in T2 and 22 fecal samples obtained in T3)were collected,and the microbiota were analyzed using 16S rRNA gene *** diversity and composition of the microbiota of PE cases and controls were ***:No significant differences in diversity were found between the PE and control groups(P>0.05).In the control group,from T2 to T3,the relative abundances of Proteobacteria(median[Q1,Q3]:2.25%[1.24%,3.30%]vs.0.64%[0.20%,1.20%],Z=-3.880,P<0.05),and Tenericutes(median[Q1,Q3]:0.12%[0.03%,3.10%]vs.0.03%[0.02%,0.17%],Z=-2.369,P<0.05)decreased *** the PE group,the relative abundance of Bacteroidetes in T2 was lower than in T3(median[Q1,Q3]:18.16%[12.99%,30.46%]vs.31.09%[19.89%,46.06%],Z=-2.417,P<0.05).In T2,the relative abundances of mircrobiota showed no significant differences between the PE group and the control ***,in T3,the relative abundance of Firmicutes was significantly lower in the PE group than in the control group(mean±standard deviation:60.62%±15.17%vs.75.57%±11.53%,t=-3.405,P<0.05).The relative abundances of Bacteroidetes,Proteobacteria,and Enterobacteriaceae were significantly higher in the PE group than in the control group(median[Q1,Q3]:31.09%[19.89%,46.06%]vs.18.24%[12.90%,32.04%],Z=-2.537,P<0.05;1.52%[1.05%,2.61%]vs.0.64%[0.20%,1.20%],Z=-3.310,P<0.05;0.75%[0.20%,1.00%]vs.0.01%[0.004%,0.023%],Z=-4.152,P<0.05).Linear discriminant analysis combined effect

关键词： Gut microbiota Preeclampsia Inflammation Second trimester Third trimester

The relationship between Methylation of MGMT gene promoter and chemosensitivity and prognosis of non-small cell lung cancer

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Journal of Hainan Medical University 2019年第14期25卷 36-40页

作者： Zhi-Wen Xue xiao-ye wang Yi-Qun Wei Department of Respiratory Hematology and Oncology Xidian Group HospitalXi’anShaanxi Province710077China Department of Medical Education Ninth Hospital of Xi'an CityXi’anShaanxi Province710054China Shaanxi Provincial People's Hospital Xi'an710068China

Objective:To detect the methylation status of MGMT gene promoter in non-small cell lung cancer(NSCLC),and to analyze the relationship between methylation of MGMT gene promoter and the chemosensitivity and prognosis of adjuvant chemotherapy after ***:Tumor tissues and adjacent non-tumor tissues of 92 patients with NSCLC who underwent surgery and adjuvant chemotherapy from January 2012 to June 2015 in the thoracic surgery department of our hospital were collected,methylation-specific PCR(MSP)was used to detect the methylation status of MGMT gene promoter in tissues,and the relationship between methylation of MGMT gene promoter and chemosensitivity,progression-free survival(PFS)and 3-year overall survival rate was ***:The methylation rate of MGMT gene promoter in cancer tissue was 39.13%(36/92)higher than that in non-cancer tissue 3.26%(3/92)(Pyear overall survival rate in methylated group were lower than those in non-methylated group(P<0.05);multivariate COX regression analysis showed that lymph node metastasis and promoter methylation of MGMT gene were independent risk factors for prognosis of NSCLC ***:MGMT gene promoter methylation is closely related to the chemosensitivity and prognosis of platinum-based adjuvant chemotherapy after *** may be an important target to reverse the chemosensitivity of platinum-based chemotherapy and improve the prognosis of NSCLC.

关键词： Non-small cell lung cancer MGMT gene promoter methylation Chemosensitivity Prognosis

Metabolic profile of danshen in rats by HPLC-LTQ-Orbitrap mass spectrometry

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第3期19卷 227-244页

作者： Huan-huan PANG Mei-fang JIANG Qin-hui wang xiao-ye wang Wei GAO Zhi-hao TIAN Jian-mei HUANG School of Chinese Materia Medica Beijing University of Chinese Medicine Beijing 100102 China

Danshen, the dried root of Salvia miltiorrhiza Bunge（Lamiaceae）, is one of the traditional Chinese medicines（TCMs） most commonly used for the treatment of cardiovascular and cerebrovascular diseases. However, little is known about the chemical and metabolic profiles of danshen in vitro or in vivo. In particular, more information is needed in relation to the 50% ethanol extracts usually used in danshen formulations such as Fufang Xueshuantong Capsules and Fufang Danshen tablets. High-performance liquid chromatography coupled with a linear ion trapOrbitrap mass spectrometer（HPLC-LTQ-Orbitrap） provides a sensitive and accurate method for analyzing the composition of samples. This method was used to determine the in vitro and in vivo chemical and metabolic profiles of danshen. Sixty-nine components of danshen extract and 118 components of danshen in rat plasma, urine, feces, and bile were unambiguously or tentatively identified. These results not only revealed the material composition of danshen, but also provided a comprehensive research approach for the identification of multi-constituents in TCMs.

关键词： Danshen Chemical profile Metabolic profile HPLC-LTQ-Orbitrap

Recanalization of chronic total occlusion using a new device:the real-time intravascular ultrasound double-lumen microcatheter

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Chinese Medical Journal 2021年第4期134卷 484-485页

作者： Yan-Zhuo Ma Guang-Dao Hou Zhi-Wen Li xiao-Jiang Zhang xiao-ye wang Gang wang Yu-Hong Peng Lei-Sheng Ru Department of Cardiology 980 Hospital of PLA Joint Logistics Support Forces(Bethune International Peace Hospital)ShijiazhuangHebei 050082China

To the Editor:Revascularization after chronic coronary total occlusion(CTO)can relieve symptoms of angina and improve both cardiac function and clinical prognosis.[1,2]However,percutaneous coronary intervention(PCI)for revascularization of CTO lesions is challenging because of a high incidence of complications and long X-ray exposure time.

关键词： occlusion coronary angina