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An iridium(Ⅲ)-palladium(Ⅱ) metal-organic cage for efficient mitochondria-targeted photodynamic therapy

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Chinese Chemical Letters 2020年第5期31卷 1183-1187页

作者： Chaojie Li Yaping Wang Yulin Lu Jing Guo Chengyi Zhu Haozhe He Xiaohui Duan Mei Pan chengyong Su MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China School of Materials Science and Engineering and School of Chemistry Sun Yat-Sen University.Guangzhou 510275China sun Yat-Sen Memorial Hospital Sun Yat-Sen UniversityGuangzhou 510120China

An Ir8 Pd4-heteronuclear metal-organic cage(MOC-51)was assembled from bipodal metalloligand[Ir(ppy)2(qpy)(BF4)](qpy=4,4′:2′,2″:4″,4′′′-quaterpyridine;ppy-2-phenylpridine)with Pd(Ⅱ)salt.The cubic barrel shaped MOC shows one-photon and two-photon excited deep-red emission,as well as large singlet oxygen quantum yields under visible light irradiation,therefore exhibiting great potentials in organelles-targeted cell imaging and photodynamic therapy(PDT).Compared with the Ir(Ⅲ)metalloligand,the Ir8 Pd4-MOC showed less dark toxicity and higher mitochondria-targeting efficiency.The localization in mitochondria overco mes the limitation of short lifetime and diffusion distance of ROS in cell,thus improved PDT effect can be obtained in low light dose usage of the MOC.This study presents the first case of Ir-based metal-organic cages for bio-applications in successful integration of imaging diagnosis and photodynamic therapy.

关键词： Metal-organic cage Photodynamic therapy Mitochondria-targeted Ir(Ⅲ)metalloligand Two-photon

Degradation of an interlocked cage and its host-guest properties

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Degradation of an interlocked cage and its host-guest proper...

中国化学会第九届全国无机化学学术会议

作者： Yuhao Li Jijun Jiang chengyong Su Lehn Institute of Functional Materials School of Chemistry and Chemical EngineeringSun Yat-Sen University

Mechanically interlocked coordination cage has received massive attention due to its aesthetic appeal and host-guest properties.However,the degradation of the interlocked cage has yet been fully studied.Herein we report a self-assmbly system which monomer and dimer are obtained simultaneously through one-pot synthesis of the 4,4’-oxydianiline,3-formylpyridine and palladium.Monomer and dimer could be separately collected by recrystallization.We observed a spontaneous degradation of the interlocked cage in DMSO,of which the reaction obeys first-order kinetics.The rate constant for conversion of dimer to monomer was determined to be(4.07±0.04)×10s,corresponding to an activation barrier,△G,of 103.7 kJ molat 298 K.Control experiment and previous report support this process originated from anion template effect.The dimeric cage binds halide with a strong affinity and the relative strength of binding decreases in the order chloride>bromide>fluoride>iodide.H NMR indicates there is intermediate during the binding for iodide and bromide,different than that for chloride and fluoride.Furthermore,monomer could be converted to dimer in presence of a proper template—chloride from cisplatin,in this case.

关键词： self-assembly kinetics host-guest systems

Mitochondrial genomes of four pierid butterfly species(Lepidoptera: Pieridae) with assessments about Pieridae phylogeny upon multiple mitogenomic datasets

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Zoological Systematics 2018年第4期43卷 387-409页

作者： Lan Nie Yunliang Wang Dunyuan Huang Ruisong Tao chengyong Su Jiasheng Hao Chaodong Zhu Laboratory of Molecular Evolution and Biodiversity College of Life Sciences Anhui Normal University College of Life Sciences Chongqing Normal University Institute of Zoology Chinese Academy of Sciences

In this study, the complete mitochondrial genomes of four pierid butterfly species, namely Batltia butleri, Talbotia naganum, Pontia callidice and P. daplidice, were newly sequenced and characterized. Meanwhile the phylogenetic relationships of the main Pieridae lineages covering 22 pierid butterfly species, were reconstructed with Bayesian inference and maximum likelihood methods based on different mitogenomic datasets, including the concatenated 13 PCGs, 13 PCGs ＋ 2 rRNAs, 2 rRNAs, 2 rRNAs ＋ 22 tRNAs and 22 tRNAs sequences, respectively. Our results of mitogenomic analysis showed that the four mitogenomes were 15,124, 15,155, 15,109, 15,124 bp in size, with the gene orders and arangements identical to all other butterflies determined. Our results of phylogenetic analyses upon protein coding genes, rRNA genes or their sequence combinations indicated that the three pierid subfamilies of this study were all monophyletic, with their relationships of being（Dismorphiinae,（Pierinae, Coliadinae））; the phylogenetic relationship of Pierini of this study was（Pieris,（Baltia,（Talbotia, Pontia）））＋（Prioneris,（Delias, Aporia））. Additionally, our analyses suggested that only mitogenomic t RNA sequence datasets were not ready to be utilized in resolving the deeper phylogeny, whereas somewhat suitable to be applied in clarifying the phylogenies of closely related species, of the pierid butterflies.

关键词： Mitogenomes phylogeny Pieridae.

Occurrence Dynamics of Ostrinia furnacalis and Application Effect of Biological Control Technology in Wafangdian, Liaoning Province

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Plant Diseases and Pests 2019年第5期10卷 20-23页

作者： Zou Liwen Fu Bo Na chengyong su Xiaomeng Dalian Wafangdian Agricultural Technology Extension Center Wafangdian 116300China

In order to determine the population dynamics of Ostrinia furnacalis and reasons of local heavy occurrence in Wafangdian,Liaoning Province,adult sexual attraction monitoring and larva damage investigation of O.furnacalis were carried out from 2016 to 2018.The results showed that the initial occurrence period of overwintering adults of O.furnacalis in 2017 and 2018 was 10-16 d earlier than that in 2016,and the occurrence period of adults in the field was extended for 22-26 d,with three occurrence peaks of adults;the number of young larvae in corn field increased significantly in early September.In 2017 and 2018,the control effects of Trichogramma dendrolimi release on the first generation of O.furnacalis in 2017 and 2018 were 70.65%and 67.84%,respectively,lower than that in 2016(76.19%).It is speculated that the difference of annual climatic conditions and adjustment of local planting structure are the main reasons for population dynamic changes of O.furnacalis.

关键词： Ostrinia furnacalis Sexual attraction Population dynamics Trichogramma dendrolimi

Test and Research of Commercial Vehicle Advanced Emergency Braking Pedestrian System

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Test and Research of Commercial Vehicle Advanced Emergency B...

2020中国汽车工程学会年会暨展览会

作者： Niu chengyong su Zhanling Hu Xiong Wang Jie Wu Kunlun Chongqing Vehicle Test & Research Institute National Bus and Coach Quality Supervision and Test CenterNational Intelligent Connected Vehicle Quality Test Center (Chongqing) Automotive Active Safety Testing Technology Chongqing Key Laboratory of Industry and Information Technology Autonomous Drive System and Intelligent Connected Vehicle Technology Chongqing Test & Research Engineering Center

Five types commercial vehicles equipped with advanced emergency braking pedestrian system(AEBSed) from different Chinese manufacturers was tested and evaluated in accordance with the traffic industry standard JT/T 1242-2019 performance requirements and test procedures for commercial vehicle AEBSed.The test results show that the braking efficiency of the system is relevant to the time to collision(TTC) and the execution strategy of the braking system.The braking stability and reliability of the same system vary greatly due to the quality of the matching braking system.The system based on millimeter wave radar and camera information fusion is worse than that of pure vision technology due to the effect of fusion algorithm and other reasons.Furthermore,we point out some problems existing in the test and evaluation of commercial vehicle under a single test scenario and put forward some relevant suggestions.

关键词： commercial vehicle advanced emergency braking pedestrian system（AEBSPed） test evaluation safety

Test and Analysis on Distance Measurement Accuracy of Commercial Vehicle Forward Collision Warning System

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Test and Analysis on Distance Measurement Accuracy of Commer...

2019中国汽车工程学会年会

作者： Niu chengyong su Zhanling Wu Kunlun Hu Xiong Xu Jianxun Chongqing Vehicle Test ＆ Research Institute National Bus and Coach Quality Supervision and Test Center Automotive Active Safety Testing Technology Chongqing Key Laboratory of Industry and Information Technology Autonomous Drive System and Intelligent Connected Vehicle Technology Chongqing Test ＆ Research Engineering Center

The distance measurement accuracy is directly related to the safety margin of forward collision warning system（FCWS）warning time,which affects the safety of vehicles and pedestrians.Distance measurement accuracy of a commercial vehicle equipped with different FCWS sensing schemes was tested and analyzed according to relevant regulations and standards on the basic of the analysis of the distance measurement principle of FCWS sensor scheme.The test results show that the distance measurement accuracy of millimeter wave radar and camera information fusion has the preferable performance.Besides,we pointed out some problems existing in the test and evaluation of distance measurement accuracy for commercial vehicle FCWS and put forward some feasible suggestions.

关键词： commercial vehicle forward collision warning system（FCWS） distance measurement accuracy test analysis

Significantly accelerated osteoblast cell growth on aligned TiO2 nanotubes

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Significantly accelerated osteoblast cell growth on aligned ...

中国化学会第十三届全国分析化学年会

作者： Qiong Yuan Rijian Mo Lulu Lv Tiantian su Pengzhi Hong chengyong Li College of Food Science and Technology Guangdong Ocean University School of Chemistry and Environment Guangdong Ocean University Shenzhen Institute of Guangdong Ocean University

The current work assesses the potential of TiO/SrHA composites mediated phenolic compounds for applications in bone engineering through in vitro experimentation. Titanium dioxide nanotubes with a diameter of 60 nm and a length of 500 nm were manufactured, and TiO/SrHA composites were successfully fabricated by vacuum adsorption self-assembly. The tubes are then loaded with the marine active small molecule compound 1-(5-bromo-2-hydroxy-methoxyphenyl) ethanone(BHM). The release kinetics of these nanocomposites was studied. In addition, the preosteoblast cell line that became MC3 T3-E1 was cultured on BHM-loaded composites to evaluate the effect of nanostructured materials on cell function. Scanning electron microscopy and X-ray diffraction analysis were employed to characterize the prepared composites. Our research showed that BHM reinforced TiO/SrHA composites exhibited favorable cytocompatibility at given concentration of BHM(20 μmol/L). Compared to pure SrHA, TiO and traditional SrHA/TiO composites, enhanced cell adhesion, spreading and proliferation of MC3 T3-E1 cells were observed on SrHA/TiO composites on account of the contribution of BHM embedded in SrHA. Overall, this investigation demonstrates that TiO/SrHA composites mediated phenolic compounds hold great potential for bone tissue engineering.

关键词： nanocomposites 1-（5-bromo-2-hydroxy-methoxyphenyl） ethanone MC3T3-E1 cells bone tissue engineering

基于ESI-TOF对MOC-16及其主客体作用

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中山大学学报（自然科学版）（中英文） 2022年第3期61卷 45-52页

作者：王家骏鲁玉麟潘梅苏成勇中山大学化学学院广东广州510275

近年来,金属-有机超分子笼在超分子化学中扮演着越来越重要的角色。在主客体化学中,金属-有机超分子笼因其特定空腔可以包裹各种客体分子,并在催化、吸附、分离等领域展现出巨大的应用前景。然而,由于金属-有机超分子笼的结构复杂,性质... 详细信息

近年来,金属-有机超分子笼在超分子化学中扮演着越来越重要的角色。在主客体化学中,金属-有机超分子笼因其特定空腔可以包裹各种客体分子,并在催化、吸附、分离等领域展现出巨大的应用前景。然而,由于金属-有机超分子笼的结构复杂,性质较为不稳定,笼子本身和它的主客体作用很难用质谱技术表征。为了解决金属-有机超分子笼及其主客体作用在质谱测试和分析中的难点,本文利用电喷雾飞行时间质谱,选择Ru-Pd金属-有机超分子笼(MOC-16)为主体,加入客体芘进行主客体作用的分析,并对测试的条件进行讨论。研究结果表明,电喷雾飞行时间质谱可以有效地实现对MOC-16及其主客体作用的分析和表征。

关键词：电喷雾飞行时间质谱(ESI-TOF) Ru-Pd金属-有机超分子笼(MOC-16) 主客体

Porous zinc(Ⅱ)-organic framework with potential open metal sites:Synthesis,structure and property

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Science China Chemistry 2011年第9期54卷 1436-1440页

作者： JIANG JiJun YANG Rui XIONG Ying LI Lei PAN Mei su chengyong KLGHEI of Environment and Energy Chemistry Laboratory of Bioinorganic and Synthetic ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringSun Yat-Sen UniversityGuangzhou 510275China

Reaction of Zn(NO3)2.6H2O with 5-(isonicotinamido) isophthalic acid(H2INAIP) in N,N-dimethylformamide(DMF) affords a new three-dimensional(3D) coordination polymer {[Zn(INAIP)(DMF)].0.5DMF.4H2O}n(1).The X-ray crystallographic structural analysis reveals that complex 1 is a 3D porous framework containing a potential open metal site inside the pores.Topology analysis confirms that complex 1 is a two-fold interpenetrated(10,3)-b net with both metal ion and ligand acting as 3-connecting nodes.The thermal stability,variable temperature X-ray diffraction pattern and N2 adsorption property of the complex are investigated.

关键词：晶体结构分析金属离子框架包多孔网站有机锌二甲基甲酰胺合成