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| 1 | Preparation and self-assembly of amphiphilic polymer with aggregation-induced emission characteristics显示文摘An amphiphilic polymer bearing tetraphenylethene (TPE) moiety was synthesized by convenient reactions. The polymer exhibits unique aggregation-induced emission (AIE) characteristics and can self-assemble to size-tunable particles in DMF/water mixtures. The polymer nanoparticles can be used for cell imaging, which provides a potential stable fluorescent tool to monitor the distribution of drugs and bioconjugates in living cells. | QIN AnJun ZHANG Ya HAN Ning MEI Ju SUN JingZhi FAN WeiMin TANG Ben Zhong | 2012 | Science China Chemistry2012,55,5: | 16 |
| 2 | Combating the Fragile Karst Environment in Guizhou,China显示文摘喀斯特景观布满落水洞、洞穴、地下河及可溶性基岩,它们占据全球地表面积的25%。虽然某些喀斯特景观很吸引人,具有审美价值,大部分则是脆弱区,不适合人类居住,因为土层极其浅薄或完全无土,而且水容易流失。 | Zhang Baiping Xiao Fei Wu Hongzhi Mo Shenguo Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Datun Road 3#,Beijing 100101,China.Email: Zhu Shouqian Yu Lifei Forestry College,Guizhou University,Guiyang 550025,China.Emaih Xiong Kangning Lan Anjun Department of Resources and Environment,Guizhou Normal University,Guiyang 550001,China.Email: | 2006 | AMBIO-人类环境杂志2006,35,2: | 9 |
| 3 | Facile synthesis of poly(aroxycarbonyltriazole)s with aggregation-induced emission characteristics by metal-free click polymerization显示文摘Regioseletive 1,3-dipolar polycycloadditions of 4,4'-isopropylidenediphenyl dipropiolate (1) and tetraphenylethene (TPE)-containing diazides (2) are carried out in polar solvents such as DMF/toluene at a moderate temperature of 100℃ for 6 h,producing poly(aroxycarbonyltriazole)s (PACTs) P3 with high molecular weights (Mw up to 23900) and regioregularities (F1,4 up to ~90%) in high yields (up to ~99%).These metal-free click polymerizations can propagate smoothly in an open atmosphere without protection from oxygen and moisture.The obtained polymers are soluble in common organic solvents and thermally stable at temperatures up to 375℃.Thanks to their contained TPE moieties,the PACTs show aggregation-induced emission and can serve as fluorescent chemosensors for superamplified detection of explosives. | LI HongKun MEI Ju WANG Jian ZHANG Shuang ZHAO QiuLi WEI Qiang QIN AnJun SUN JingZhi TANG Ben Zhong | 2011 | Science China Chemistry2011,54,4: | 8 |
| 4 | A Simple Approach to Bioconjugation at Diverse Levels: Metal-Free Click Reactions of Activated Alkynes with Native Groups of Biotargets without Prefunctionalization显示文摘Te efcient bioconjugation of functional groups/molecules to targeted matrix and bio-related species drives the great development of material science and biomedicine,while the dilemma of metal catalysis,uneasy premodifcation,and limited reaction efciency in traditional bioconjugation has restricted the booming development to some extent.Here,we provide a strategy for metal-free click bioconjugation at diverse levels based on activated alkynes.As a proof-of-concept,the abundant native groups including amine,thiol,and hydroxyl groups can directly react with activated alkynes without any modifcation in the absence of metal catalysis.Trough this strategy,high-efcient modifcation and potential functionalization can be achieved for natural polysaccharide,biocompatible polyethylene glycol(PEG),synthetic polymers,cell penetrating peptide,protein,fast whole-cell mapping,and even quick diferentiation and staining of Gram-positive bacteria,etc.Terefore,current metal-free click bioconjugation strategy based on activated alkynes is promising for the development of quick fuorescence labeling and functional modifcation of many targets and can be widely applied towards the fabrication of complex biomaterials and future in vivo labeling and detection. | Xianglong Hu Xueqian Zhao Benzhao He Zheng Zhao Zheng Zheng Pengfei Zhang Xiujuan Shi Ryan T.K.Kwok Jacky W.Y.Lam Anjun Qin Ben Zhong Tang | 2018 | Research2018,,1: | 7 |
| 5 | Regularity of sediment transport and sedimentation during floods in the lower Yellow River,China显示文摘The flood season is the main period of flow,sediment transport,and sedimentation in the lower Yellow River(LYR).Within the flood season,most of the flow,sediment transport,and sedimentation occurs during flood events.Because of the importance of floods in forming riverbeds in the LYR,the regularity of sediment transport and sedimentation during floods in the LYR was studied.Measured daily discharge and sediment transport rate data for the LYR from 1960 to 2006 were used.A total of 299 floods were selected;these floods had a complete evolution of the flood process from the Xiaolangdi to the Lijin hydrological stations.For five hydrological stations(Xiaolangdi,Huayuankou,Gaocun,Aishan,and Lijin),a correlation was first established for floods of different magnitudes between the average sediment transport rate at a given station and the average sediment concentration at the closest upstream station.The results showed that the sediment transport rate at the downstream station was strongly correlated with the inflow(upstream station)sediment concentration during a flood event.A relation then was established between sedimentation in the LYR and the average sediment concentration at the Xiaolangdi station during a flood event.From this relation,the critical sediment concentrations were obtained for absolute erosion,sedimentation equilibrium,and absolute deposition during floods of different magnitudes in the LYR.The results of the current study contribute to a better understanding of the mechanisms of sediment transport and the regularity of sedimentation in the LYR during floods,and provide technical support to guide the joint operation of reservoirs and the regulation of the LYR. | Qingchao Guo Zhao Zheng Liemin Huang Anjun Deng | 2020 | International Journal of Sediment Research2020,35,1: | 6 |
| 6 | Detection of the critical micelle concentration of cationic and anionic surfactants based on aggregation-induced emission property of hexaphenylsilole derivatives显示文摘We report a fluorescence 'turn-on' method to detect the critical micelle concentration (CMC) of surfactants. This method works well for both cationic and anionic surfactants. It employs an unprecedented mechanism (aggregation-induced emission, or AIE) to determine the CMC values, and the results are consistent with the data obtained by the classical techniques. In addition, this method renders the convenient detection of the CMC values. Any large and professional instruments are unnecessary, instead, a portable UV lamp and an ultrasonic generator are enough to carry out the detection in an ordinary laboratory. Considering that micelles are interesting entities and have found applications in many important fields such as emulsion polymerization, template of nanosized materials synthesis, controllable drug delivery and macromolecular self-assembling. Our experimental results may offer a facile, sensitive and promising method to detect the formation of micelles constructed by the new amphiphilic molecules and macromolecules. | TANG Li JIN JiaKe ZHANG Shuang MAO Yu SUN JingZhi YUAN WangZhang ZHAO Hui XU HaiPeng QIN AnJun TANG Ben Zhong | 2009 | Science China Chemistry2009,52,6: | 6 |
| 7 | Thiol-yne click polymerization显示文摘The research on using thiol-ene click reaction to synthesize sulfur-containing polymers with topological structures and advanced functional properties is a hot topic. However, the application of the thiol-yne reaction in the functional polymer preparation is limited and the thiol-yne click polymerization is to be further developed. In this review, we summarized recent research efforts on using thiol-yne click polymerization to synthesize polymers with topological structures. The sulfur-containing polymers were facilely prepared by photo-and thermo-initiated, amine-mediated, and transition-metal-catalyzed thiol-yne click polymerizations. These polymers are promising to be used as drug-delivery vehicles, high refractive index optical materials, photovoltaic materials, and biomaterials etc. | YAO BiCheng SUN JingZhi QIN AnJun TANG Ben Zhong | 2013 | Chinese Science Bulletin2013,58,22: | 4 |
| 8 | Electronic effect on the optical properties and sensing ability of AIEgens with ESIPT process based on salicylaldehyde azine显示文摘Two novel AIE-active salicylaldehyde azine(SAA) derivatives with a typical excited-state intramolecular proton transfer(ESIPT) process are prepared by introducing electron-withdrawing and donating groups at para-position of phenolic hydroxyl group(CN-SAA and TPA-SAA). The effect of the proton activity in SAA framework on their optical behaviors is investigated spectroscopically. The results from NMR and solvation measurements show that the proton of phenolic hydroxyl group has higher activity when there are electron-withdrawing groups, and the absorption and fluorescence spectra in buffers with different pH also provide the same results. After inviting F. as a nucleophilic probe, this proton activity difference in CN-SAA and TPA-SAA becomes more obvious. The potential application of both molecules is investigated. TPA-SAA exhibits good quantitative sensing ability towards F. with a fluorescence 'turn-on' mode, whereas the aggregates of TPA-SAA can selectively and sensitively detect Cu2+ in aqueous solution. From these results, a structure-property relationship is established: the occurrence of ESIPT process will become much easier when linking electron-withdrawing groups at the para-position of phenolic hydroxyl group(e.g., CN-SAA),and it is better to introduce electron-donating groups to enhance the sensing ability towards ions(e.g., TPA-SAA). This work will provide guidance for further design and preparation of AIE-active luminogens with ESIPT process for sensing applications. | Zhiming Wang Fan Zhou Jing Wang Zujin Zhao Anjun Qin Zhenqiang Yu Ben Zhong Tang | 2018 | Science China Chemistry2018,61,1: | 3 |
| 9 | The protective effects of peptides from Chinese baijiu on AAPH-induced oxidative stress in HepG2 cells via Nrf2 signaling pathway显示文摘Antioxidant peptides have been widely reported.However,only a few reports have been published examining the antioxidant peptides derived from Chinese baijiu.In this study,6 novel peptides derived from Chinese baijiu were identified successfully using high-performance liquid chromatography-quadrupoletime-of-flight mass spectrometry(HPLC-QTOF-MS)with a concentration of 0.835–24.540μg/L.The underlying molecular mechanisms were investigated,and their cytoprotective effects were examined against 2,2’-azobis(2-methylpropanimidamidine)dihydrochloride(AAPH)-induced oxidative stress in Hep G2 cells.The results showed that these peptides exerted protective effects by suppressing reactive oxygen species(ROS)generation,preventing malondialdehyde(MDA)formation,and upregulating cellular antioxidant enzyme activities(SOD,CAT,and GSH-Px)in a dose-dependent manner.Further experiments proved that these peptides exerted antioxidant effects via Nrf2/ARE-mediated signaling pathway by promoting Nrf2 nuclear translocation,inhibiting ubiquitination,and enhancing transcription capacity of Nrf2 in Hep G2 cells.These findings provide the molecular basis for the effects of antioxidant peptides derived from Chinese baijiu,which is important for a deeper understanding of the relationship between human health and moderate drinking. | Jiaying Huo Yuezhang Ming Huifeng Li Anjun Li Jiwen Zhao Mingquan Huang Weizheng Sun Jihong Wu Jinglin Zhang | 2022 | Food Science and Human Wellness2022,11,6: | 3 |
| 10 | New tetraphenylpyridinium-based luminogens with aggregation-induced emission characteristics显示文摘The research on aggregation-induced emission (AIE) has drawn increasing interests in the past decade. With the efforts scientists paid, a variety of AIE systems have been developed, among which the tetraphenylethelene and silole derivatives are the most studied. Development of new AIE systems could further enrich the AIE molecules and promote the development of AIE area. In this communication, we prepared a new AIE system based on 1,2,4,6-tetraphenylpyridinium ions according to the restriction of intramolecular rotation mechanism. These molecules could be facilely synthesized via one-step and one-pot reaction. The ionic AIE-active molecules could find wide application in sensing and optoelectronic areas. | WANG ZongTan FANG Yuan SUN JingZhi QIN AnJun TANG Ben Zhong | 2013 | Science China Chemistry2013,56,9: | 3 |
| 11 | Stimulus responsive fluorescent hyperbranched polymers and their applications显示文摘Fluorescent hyperbranched polymers (FHBPs),which combine the versatile fluorescent property with unique characteristics of hyperbranched architecture,are desirable candidates for stimulus responsive materials.This review demonstrates the structure and environment-dependent emission behaviors of a series of FHBPs.AEE active FHBPs showing opposite performance to ACQ effect are used to sensitively detect explosives and a superamplification effect is found.Specially designed FHBPs can complex with metal ions,leading to fluorescence turn-off due to complex quenching effect.The protonation of amino-containing FHBPs exhibits pH-dependent fluorescence responses to solution acidity.Some FHBPs containing responsive moieties are photo-and thermo-sensitive,and show potential applications as smart materials. | WANG Jian 1,MEI Ju 1,QIN AnJun 1,SUN JingZhi 1 & TANG Ben Zhong 1,2 1 MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering,Institute of Biomedical Macromolecules,Zhejiang University,Hangzhou 310027,China 2 Department of Chemistry,The Hong Kong University of Science & Technology,Hong Kong,China | 2010 | Science China Chemistry2010,53,12: | 3 |
| 12 | Lycopene Accumulation Affects the Biosynthesis of Some Carotenoid-related Volatiles Independent of Ethylene in Tomato显示文摘For elucidating the regulatory mechanism of ethylene on carotenoid-related volatiles (open chain) compounds and the relationship between lycopene and carotenoid-related volatiles, transgenic tomato fruits in which ACC synthase was suppressed were used. The transgenic tomato fruit showed a significant reduction of lycopene and aroma volatiles with low ethylene production. 6-methyl-5-hepten-2-one, 6-methyl-5-hepten-2-ol and geranylacetone, which were suspected to be lycopene degradation products, were lower than those in wild type tomato fruits. In order to identify whether lycopene accumulation effects the biosynthesis of some carotenoid-related volatiles independent of ethylene in tomato or not, the capability of both wild type and transgenic tomato fruits discs to convert lycopene into carotenoid-related volatiles was evaluated. The data showed that external lycopene could convert into 6-methyl-5-hepten-2-one and 6-methyl-5-hepten-2-ol in vivo, indicating that the strong inhibition of ethylene production had no effect on enzymes in the biosynthesis pathway of some carotenoid-related volatiles. Therefore, in ACS-suppression transgenic tomato fruits, the low levels of 6-methyl-5-hepten-2-one, 6-methyl-5-hepten-2-ol was due to decreased lycopene accumulation, not ethylene production. Ethylene only affected the accumulation of lycopene, and then indirectly influenceed the level of lycopene-related volatiles. | Hongyan Gao Hongliang Zhu Yi Shao Anjun Chen Chengwen Lu Benzhong Zhu Yunbo Luo | 2008 | Journal of Integrative Plant Biology2008,50,8: | 3 |
| 13 | Evolution of Spatial Pattern of China's Urbanization and Its Impacts on Regional Development | TAO Anjun,PhD,Lecturer,Department of Urban Planning,School of Architecture,Southeast University,Nanjing,P.R.China.FAN Jie,Vice President,Urban Planning Society of China Researcher,Professor,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,P.R.China. | 2011 | China City Planning Review2011,20,3: | 3 |
| 14 | High-quality industrial n-type silicon wafers with an efficiency of over 23% for Si heterojunction solar cells显示文摘展示更长的少数搬运人一生和某些金属污染的更高的忍耐的 n 类型 CZ-Si 晶片能提供最好的基于 Si 的太阳能电池之一。在这研究,在顶与不同晶片被制作的 Si heterojuction ( SHJ )太阳能电池,中间和铸块锭的尾巴位置,展出了稳定的高效率>22%尽管有抵抗力和一生的各种各样的侧面,它表明了n类型铸块锭的高材料利用。为有效地把日光变换成电力,另外,金字塔尺寸,金字塔密度和 Cz-Si 晶片的表面的粗糙被扫描电子显微镜(SEM ) 和传播电子显微镜(TEM ) 调查。而且, SHJ 太阳能电池的依赖表面地形学上的开电路的电压被讨论,它显示表面金字塔的一致性帮助改进开电路的电压和变换效率。而且,模拟表明 SHJ 太阳能电池的最高的效率能被晶片与 100 m 的厚度完成。幸好,有 100 m 的晶片厚度的 SHJ 太阳能电池的超过 23% 变换效率在飞行员生产线基于房间制造过程的系统的优化被获得。显然,两 n 类型铸块锭的大可获得性和更薄的晶片强烈支持了高效率 SHJ 太阳能电池的更低的费用制造。 | Fanying MENG Jinning LIU Leilei SHEN Jianhua SHI Anjun HAN Liping ZHANG Yucheng LIU Jian YU Junkai ZHANG Rui ZHOU Zhengxin LIU | 2017 | Frontiers in Energy2017,11,1: | 3 |
| 15 | A specific aggregation-induced emission-conjugated polymer enables visual monitoring of osteogenic differentiation显示文摘Osteogenic differentiation is the basis of bone growth and repair related to many diseases,in which evaluating the degree and ability of osteogenic transformation is quite important and highly desirable.However,fixing or stopping the growth of cells is required for conventional methods to monitor osteogenic differentiation,which cannot realize the full investigation of the dynamic process.Herein,a new anion conjugated polymer featuring aggregation-induced emission(AIE)characteristics is developed with excellent solubility for in-situ monitoring the process of osteogenic differentiation.This novel polymer can bind with osteogenic differentiated cells,and the intracellular fluorescence increases gradually with the enhancement of osteogenic differentiation.Moreover,it possesses good biosafety with negligible effect on cell activity and osteogenic differentiation,which cannot be realized by the typical method of Alizarin Red S staining.Further study shows that the polymer crosses the cell membrane through endocytosis and enriches in lysosomes,whereas no obvious fluorescence is detected with other cells,including non-differentiated osteoblast cells,under the same conditions,demonstrating the high selectivity.This is the first fluorescent probe with excellent specificity to realize real-time observation of the process of osteogenic differentiation.Therefore,PTB-EDTA shows great promise in the study of osteogenic differentiation and related applications. | Zhenyu Zheng Taotao Zhou Rong Hu Minjun Huang Xiang Ao Jun Chu Tao Jiang Anjun Qin Zhongmin Zhang | 2020 | Bioactive Materials2020,5,4: | 3 |
| 16 | Three new lignan glucosides from the roots of Scutellaria baicalensis显示文摘Three new lignan glucosides, baicalensinosides A–C(1–3), were isolated from the roots of Scutellaria baicalensis. The structural elucidation was achieved by in-depth spectroscopic examinations and qualitative chemical test. Structurally, these compounds belong to the 3,4-dibenzyltetrahydrofurantype lignan glycoside with a mono-hydroxyl substitution at the 70-position of benzylidene group on the numbering system of lignans being one of their shared critical features. The anti-osteoporotic activity of the isolated compounds was assessed in an in vitro osteoprotegerin(OPG) transcriptional activity assay using dual luciferase reporter detection. At 10 μmol/L, compounds 1–3 increased the relative activating ratio of OPG transcription to 1.83, 0.84 and 0.98 times that of the control group, respectively. | Hailin Long Haijing Zhang Anjun Deng Lin Ma Lianqiu Wu Zhihong Li Zhihui Zhang Wenjie Wang Jiandong Jiang Hailin Qin | 2016 | Acta Pharmaceutica Sinica B2016,6,3: | 2 |
| 17 | Comparison of lentiviruses pseudotyped with S proteins from coronaviruses and cell tropisms of porcine coronaviruses显示文摘The surface glycoproteins of coronaviruses play an important role in receptor binding and cell entry. Different coronaviruses interact with their specific receptors to enter host cells. Lentiviruses pseudotyped with their spike proteins(S) were compared to analyze the entry efficiency of various coronaviruses. Our results indicated that S proteins from different coronaviruses displayed varied abilities to mediate pseudotyped virus infection. Furthermore, the cell tropisms of porcine epidemic diarrhea virus(PEDV) and transmissible gastroenteritis virus(TGEV) have been characterized by live and pseudotyped viruses. Both live and pseudoviruses could infected VeroCCL-81(monkey kidney), Huh-7(human liver), and PK-15(pig kidney) cells efficiently. CCL94(cat kidney) cells could be infected efficiently by TGEV but not PEDV. Overall, our study provides new insights into the mechanisms of viral entry and forms a basis for antiviral drug screening. | Jingjing Wang Feng Deng Gang Ye Wanyu Dong Anjun Zheng Qigai He Guiqing Peng | 2016 | Virologica Sinica2016,31,1: | 2 |
| 18 | Modulating Sand’s time by ion-transport-enhancement toward dendrite-free lithium metal anode显示文摘Metallic lithium is deemed as the“Holy Grail”anode in high-energy-density secondary batteries.Uncontrollable lithium dendrite growth and related issues originated from uneven concentration distribution of Li+in the vicinity of the anode,however,induce severe safety concerns and poor cycling efficiency,dragging lithium metal anode out of practical application.Herein we address these issues by using cross-linked lithiophilic amino phosphonic acid resin as the effective host with the ion-transportenhancement feature.Based on theoretical calculations and multiphysics simulation,it is found that this ion-transportenhancement feature is capable of facilitating the self-concentration kinetics of Li+and accelerating Li^(+)transfer at the electrolyte/electrode interface,leading to uniform bulk lithium deposition.Experimental results show that the proposed lithiumhosting resin decreases the irreversible lithium capacity and improves lithium utilization(with the Coulombic efficiency(CE)of 98.8%over 130 cycles).Our work demonstrates that inducing the self-concentrating distribution of Li+at the interface can be an effective strategy for improving the interfacial ion concentration gradient and optimizing lithium deposition,which opens a new avenue for the practical development of next-generation lithium metal batteries. | Yu Yan Chaozhu Shu Ruixin Zheng Minglu Li Zhiqun Ran Miao He Anjun Hu Ting Zeng Haoyang Xu Ying Zeng | 2022 | Nano Research2022,15,4: | 2 |
| 19 | CHANNEL SHRINKAGE AND ITS INSTABILITY IN THE LOWER YELLOW RIVER显示文摘From the mid 1980s through the late 1990s, the channel of the lower Yellow River experienced serious shrinkage, which has decreased the flood conveyance of the channel and the sediment carrying capacity of the flow, raised the water levels of floods, and, thus, severely threatened the safety of flood control along the river. The completion of Xiaolangdi Dam in 1999 could help mitigate the channel shrinkage problem, but the situation has not changed yet. This paper analyses the characteristics, mechanisms, and conditions resulting in channel shrinkage, points out channel instabilities, and puts forward approaches of channel rehabilitation. | Jianguo CHEN Wenhao ZHOU Anjun DENG | 2006 | International Journal of Sediment Research2006,21,1: | 2 |
| 20 | Disubstituted polyacetylenes containing photopolymerizable vinyl groups and polar ester functionality:Polymer synthesis,aggregation-enhanced emission,and fluorescent pattern formation显示文摘 | Wang Zhang Yuan Anjun Qin Jacky W Y Lam | 2007 | Macromolecules2007,40,9: | 1 |