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Detection of Oxygen Based on Host-Guest Doped Room-Temperature Phosphorescence Material

有机化学 2024年第8期44卷 2523-2529页

作者： Zhang Wei Li Gengchen Su Hao Dai Wenbo Sun Peng Shi Jianbing tong bina Cai Zhengxu Dong Yuping Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081 Hefei National Laboratory University of Science and Technology of ChinaHefei 230088 College of Chemistry and Materials Engineering Wenzhou UniversityWenzhouZhejiang 325035 Key Lab of Biohealth Materials and Chemistry of Wenzhou Wenzhou UniversityWenzhouZhejiang 325035 Advanced Research Institute of Multidisciplinary Sciences Beijing Institute of TechnologyBeijing 100081

Quantitative oxygen detection,especially at low concentrations,holds significant importance in the realms of biology,complex environments,and chemical process *** to the high sensitivity and rapid response of the triplet excitons of phosphorescence to oxygen,pure organic room-temperature phosphorescence(RTP)materials have garnered widespread attention in recent years for oxygen ***,simultaneously achieving ultralong phosphorescence at room temperature and quantitative oxygen detection from pure organic host-guest doped materials poses *** d ensely packed materials may decrease non-radiative decay to increase the phosphorescence,but are unsuitable for oxygen diffusion in oxygen ***,the oxygen sensitivity of host-guest doped RTP materials using 4-bromo-N,N-bis(4-(tertbutyl)phenyl)aniline(TPABuBr)as the host and 6-bromo-2-butyl-1H-benzo[de]isoquinoline-1,3(2H)-dione(NIBr)as the guest was *** doped material exhibits fluorescence-phosphorescence dual-emission behavior at room *** tert-butyl groups in TPABuBr facilitate appropriate intermolecular spacing in the crystal state,enhancing oxygen ***,oxygen penetration can quench the phosphorescence *** observed linear relationship between the phosphorescence intensity of the doped material and the oxygen volume fraction conforms to the Stern-Volmer equation,suggesting its potential for quantitative analysis of oxygen *** calculated limit of detection is 0.015%(φ),enabling the analysis of oxygen with a volume fraction of less than 2.5%(φ).Moreover,the doped materials demonstrate rapid response and excellent photostability,indicating their potential utility as oxygen *** study elucidates the design and characteristics of NIBr/TPABuBr doped materials,highlighting their potential application in oxygen concentration detection and offering insights for the design of oxygen sensors.

关键词： organic room-temperature phosphorescence host-guest doped strategy oxygen sensitive materials oxygen concentration detection

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EFFECTS OF RED LIGHT AT 640nm FROM LIGHT EMITTING DIODES ON THE RESPIRATORY BURST OF HUMAN NEUTROPHILS

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Journal of Innovative Optical Health Sciences 2008年第2期1卷 285-294页

作者： MIN WU LING ZHU bina HU TIMON CHENG-YI LIU DONG-LIANG RONG tong-SHENG CHEN Laboratory of Laser Sports Medicine South China Normal University Guangzhou GD 510006China MOE Key Laboratory of Laser Life Science South China Normal University GuangzhouGD 510631China

Photobiomodulation(PBM)has been reported to have effects on respiratory burst of polymorphonuclear neutrophils(PMNs),but little focus was on the individual differences of human *** latter was investigated in this *** PMNs were isolated from peripheral blood of 13 volunteers(10 ordinary persons,3 athletes)and treated by red light(640±15 nm)from light emitting diodes(RLED)at 50,100,300,500 and 1000 J/m^(2)for 100 seconds,*** samples of athletes were extracted at different running stages in 10 km non-interrupted long-distance running,before running,1 hour after running began,just finishing the running,resting for 1 hour and 2 hours after *** PMN respiratory burst was assessed by the nitroblue tetrazolium *** was found that there were three types of RLED PBM on the respiratory burst of 3 types of PMNs,respectively,inducing for the subactivated PMNs,inhibiting for the overactivated PMNs and none for the PMNs in *** was then concluded that there may be RLED PBM on dysfunctional human PMNs while none on those in homeostasis,and RLED at 300 J/m^(2)for 100 seconds may have bi-direction modulation on PMN respiratory burst.

关键词： Polymorphonuclear neutrophils photobiomodulation homeostasis

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DFT Study on the Structure and Racemization Mechanism of 1,1 ＇- bina phthalene-8,8 ＇-diol

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Chinese Journal of Chemical Physics 2008年第4期21卷 367-375页

作者： Liang-guo Da tong-tong Lu Mei Xiang Tian-jing He Dong-ming Chen Department of Chemical Physics University of Science and Technology of China Hefei 230025 China Department of Chemical Biology Huainan Normal University Huainan 232001 China

Density functional theory （DFT） was applied to study the ground state geometries and isomerization processes of 1,1＇-binaphthalene-8,8＇-diol. Three isomers, denoted as ISO1, ISO2, and ISO3, were found, distinguished by different orientations of the OH groups, and each OH-orientational isomer has R- and S-enantiomer. The conformational stabilities of these isomers were investigated by tracking the energy change with respect to the ring-to-ring torsion. The inter-conversions between the three OH-orientational S-isomers were found to have quite low barriers owing to the nearly free rotation of OH groups around the O-C single bonds. The S-R enantiomerization of ISO1 and ISO2 can take place through the ring-ring torsion around the C1-C1/ single bond, either in the anti-rotation manner or in the syn-rotation manner. The barriers of the anti routes are lower than those of the corresponding syn routes by 87.95 and 75.04 kJ/mol. For the S-R enantiomerization of ISO3, only the anti route was found. The barriers for the anti route enantiomerizations of ISO1, ISO2, and ISO3 are 119.61, 120.43, and 121.59 kJ/mol, respectively. A parallel reaction mechanism via three anti enantiomerization routes was proposed for the racemization of 1,1＇-binaphthalene-8,8＇-diol.

关键词： Density functional theory (DFT) 1 1'-binaphthalene-8 8'-diol Racemization

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水相中一些有机合成反应的研究进展

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有机化学 2006年第12期26卷 1723-1732页

作者：靳通收王爱卿张建设赵瑞巧刘利宾河北大学化学与环境科学学院保定071002

水作为有机合成反应的介质具有价廉、安全、无污染、产物易于分离等优点.综述了近年来水介质中一些有机合成反应的研究进展,这些反应包括氧化、还原、烯丙基化、环加成、克来森、迈克尔、维悌希、缩合、偶联、自由基、有机光化学、取代等.

关键词：水介质有机合成进展

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A search for double-peaked narrow emission line galaxies and AGNs in the LAMOST DR1

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Research in Astronomy and Astrophysics 2014年第10期14卷 1234-1250页

作者： Zhi-Xin Shi A-Li Luo Georges Comte Xiao-Yan Chen Peng Wei Yong-Heng Zhao Fu-Chao Wu Yan-Xia Zhang Shi-Yin Shen Ming Yang Hong Wu Xue-Bing Wu Hao-tong Zhang Ya-Juan Lei Jian-Nan Zhang Ting-Gui Wang Ge Jin Yong Zhang Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of Sciences National Laboratory of Pattern Recognition Institute of AutomationChinese Academy of Sciences University of Chinese Academy of Sciences Aix-Marseille Universite&CNRS Institut PytheasLAM(Laboratoire d'Astrophysique de Marseille)UMR7326F-13388 Marseille Shanghai Astronomical Observatory Chinese Academy of Sciences Department of Astronomy Peking University University of Science and Technology of China Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope （LAMOST） has released more than two million spectra, which provide the opportunity to search for double-peaked narrow emission line （NEL） galaxies and active galactic nuclei （AGNs）. The double-peaked narrow-line profiles can be well modeled by two velocity components, respectively blueshifted and redshifted with respect to the sys- temic recession velocity. This paper presents 20 double-peaked NEL galaxies and AGNs found from LAMOST DR1 using a search method based on a multi-Gaussian fit of the narrow emission lines. Among them, ten have already been published by other authors, either listed as genuine double-peaked NEL objects or as asymmetric NEL objects, and the remaining ten are original discoveries. We discuss some pos- sible origins for the double-peaked narrow-line features, such as interaction between jet and narrow line regions, interaction with companion galaxies, and black hole bina- ries. Spatially resolved optical imaging and/or follow-up observations in other spectral bands are needed to further discuss the physical mechanisms at work.

关键词： galaxies emission lines -- quasars emission lines -- methods dataanalysis

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烟-稻两熟烤烟品种筛选

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广东农业科学 2013年第19期40卷 9-10,13页

作者：杨通隆杨天沛杨勇贵州省黔东南州烟草公司贵州凯里556000

为筛选适宜天柱烟区烟-稻两熟推广种植的烤烟品种,以K326、毕纳1号、贵烟201、南江3号和云烟87为参试品种,采取大区对比的方法,对参试品种的生育期、经济性状以及烟叶品质进行综合分析,结果表现为:(1)毕纳1号、南江3号的田间农艺性状表... 详细信息

为筛选适宜天柱烟区烟-稻两熟推广种植的烤烟品种,以K326、毕纳1号、贵烟201、南江3号和云烟87为参试品种,采取大区对比的方法,对参试品种的生育期、经济性状以及烟叶品质进行综合分析,结果表现为:(1)毕纳1号、南江3号的田间农艺性状表现较好,有效叶片数较多,其中毕纳1号叶片数最多;K326和云烟87的大田生育期较短,毕纳1号和南江3号较长。(2)毕纳1号经济性状表现最佳,产量和产值均为最高;K326和云烟87产量、产值较为接近,较毕纳1号略低。(3)化学品质总体表现较好的是K326和毕纳1号,两个品种上、中、下3个部位吸食质量均表现最佳。根据本试验综合分析来看,作为烟稻两熟区,建议天柱烟区选择K326、毕纳1号等烟草品种为佳,其次为云烟87。

关键词：烟草品种筛选轮作制度

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10种烟草品种(系)对烟草靶斑病的抗性分析

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植物医学 2022年第5期1卷 64-70页

作者：郭沫言史彩华李童汪汉成长江大学农学院湖北荆州434025 贵州省烟草科学研究院贵阳550081

为探究烟草不同成熟度烟叶及不同烟草品种(系)对烟草靶斑病的抗性,本研究基于田间病情指数评价了“云烟87”不同成熟度(未熟、适熟和成熟)烟叶对靶斑病的抗性,并采用离体叶片法和田间病情指数评价了“云烟87”“云烟85”“云烟97”“红... 详细信息

为探究烟草不同成熟度烟叶及不同烟草品种(系)对烟草靶斑病的抗性,本研究基于田间病情指数评价了“云烟87”不同成熟度(未熟、适熟和成熟)烟叶对靶斑病的抗性,并采用离体叶片法和田间病情指数评价了“云烟87”“云烟85”“云烟97”“红花大金元”“贵烟5号”“贵烟8号”“GZ36”“K326”“韭菜坪2号”和“毕纳1号”这10个烟草品种(系)对烟草靶斑病的抗性.研究结果发现,成熟叶片对靶斑病抗性最弱,病情指数为90.20,其次为适熟叶片,病情指数为66.67,而未熟叶片抗性最强,病情指数为25.00.结合室内和田间的调查结果发现,10个烟草品种(系)对烟草靶斑病表现出不同抗性,其中“韭菜坪2号”抗性最强,接菌10 d时平均病斑直径为12.38 mm,调查14 d时田间病情指数为60.00;其次为“云烟97”“云烟85”“毕纳1号”“贵烟8号”“云烟87”“红花大金元”和“GZ36”,病斑直径范围为18.00~23.00 mm;“贵烟5号”和“K326”抗性较弱,病斑直径为24.28 mm和25.91 mm,14 d时田间病情指数分别为68.44和62.67.研究结果提示,不同成熟度烟叶抗性表现不同,不同品种烟草对烟草靶斑病表现抗性不同,可为烟草靶斑病抗性种质资源的筛选提供参考.

关键词：烟草烟草靶斑病品种抗性鉴定

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两种施肥方式对烟草光合色素及叶绿素荧光特性的影响

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西南农业学报 2012年第6期25卷 2162-2166页

作者：王通明陈伟潘文杰尹鹏达宗学凤王三根西南大学农学与生物科技学院重庆400716 贵州省烟草科学研究所贵州贵阳550081

以烟草品种毕纳1号为实验材料,比较其在常规肥和有机肥的施肥方式下不同生长期叶片光合色素和叶绿素荧光参数的动态变化。结果表明,在前期(叶龄15～30 d),有机施肥方式下烟草中部叶光能利用率较高、光合能力比常规施肥方式下的强,而在叶... 详细信息

以烟草品种毕纳1号为实验材料,比较其在常规肥和有机肥的施肥方式下不同生长期叶片光合色素和叶绿素荧光参数的动态变化。结果表明,在前期(叶龄15～30 d),有机施肥方式下烟草中部叶光能利用率较高、光合能力比常规施肥方式下的强,而在叶龄45 d以后,常规施肥方式下烟草中部叶的光合能力比施用有机肥的强,叶片对光能的利用能力差异不明显;两种施肥方式下,叶片qN的差异说明施用有机肥的处理光保护能力较高。

关键词：烟草光合色素荧光施肥方式

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10个烤烟品种(系)对烟草赤星病的抗性评价

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贵州农业科学 2023年第6期51卷 68-73页

作者：李童郭沫言章松柏汪汉成蔡刘体长江大学农学院湖北荆州434025 贵州省烟草科学研究院贵州贵阳550081

【目的】探明云烟85、云烟87和云烟97等10个烤烟品种(系)对烟草赤星病的抗性水平,以期为抗病烟草品种选育及病害的科学防治提供参考。【方法】以离体叶片接菌法评价云烟85、云烟87、云烟97、贵烟5、贵烟8、红花大金元、毕纳1号、韭菜坪... 详细信息

【目的】探明云烟85、云烟87和云烟97等10个烤烟品种(系)对烟草赤星病的抗性水平,以期为抗病烟草品种选育及病害的科学防治提供参考。【方法】以离体叶片接菌法评价云烟85、云烟87、云烟97、贵烟5、贵烟8、红花大金元、毕纳1号、韭菜坪2号、K326和GZ36共10个烤烟品种(系)对烟草赤星病的抗性,采用喷施孢子悬浮液法评价其田间成熟、适熟和未熟烟叶对赤星病的抗性。【结果】10个烤烟品种(系)接种菌株CXB 5 d、7 d和10 d的病斑直径分别为9.25~15.13 mm、12.06~25.38 mm和13.25~28.75 mm,接种菌株P2-4 5 d、7 d和10 d的病斑直径分别为3.88~12.38 mm、4.00~19.00 mm和4.00~23.63 mm;接种菌株CXB10 d时云烟87、GZ36和红花大金元的抗性相对较强,病斑直径分别为13.25 mm、16.88 mm和17.00 mm;韭菜坪2号、云烟97和贵烟5的抗性相对较弱,病斑直径分别为28.75 mm、27.63 mm和26.75 mm;接种P2-4菌株10 d时,红花大金元、云烟97和韭菜坪2号的抗性相对较强,病斑直径分别为4.00 mm、5.38 mm和5.81 mm,云烟85、贵烟5和毕纳1号的抗性相对较弱,病斑直径分别为23.63 mm、21.00 mm和17.63 mm。10个烤烟品种(系)喷施赤星病病原菌孢子混合悬浮液21 d时,均以成熟烟叶病情指数最大,为56.67~97.78;未熟烟叶病情指数最小,为21.11~65.56;不同成熟度烟叶间均差异显著,成熟烟叶较适熟和未熟烟叶发病重。【结论】不同烤烟品种(系)对烟草赤星病的抗性不同,云烟87、GZ36和红花大金元的抗性相对较强;同一烤烟品种不同成熟度烟叶对烟草赤星病抗性存在显著差异,其中,未熟烟叶的抗病性最强,成熟烟叶最弱。

关键词：烟草赤星病烤烟品种烟叶成熟度致病力病情指数抗性评价

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