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Chinese Chemical Letters 2016年第1期27卷 127-134页

作者： Yang Xu Liang-Sheng Qiang Yu-Lin Yang Li-Guo Wei Ping Wang rui-qing fan Department of Chemistry Harbin Institute of Technology College of Environmental and Chemical Engineering Heilongjiang University of Science and Technology

A pyridine-anchor co-adsorbent of N,N＇-bis（（pyridin-2-yl）（methyl） methylene）-o-phenylenediamine（named BPPI） is prepared and employed as co-adsorbent in dye-sensitized solar cells（DSSCs）. The prepared co-adsorbent could overcome the deficiency of N719 absorption in the low wavelength region of visible spectrum, offset competitive visible light absorption of I_3^-, enhance the spectral responses of the co-adsorbed TiO_2 film in region from 300 nm to 750 nm, suppress charge recombination, prolong electron lifetime, and decrease the total resistance of DSSCs. The optimized cell device co-sensitized by BPPI/N719 dye gives a short circuit current density of 12.98 m A cm^（-2）, an open circuit voltage of 0.73 V,and a fill factor of 0.66 corresponding to an overall conversion efficiency of 6.22% under standard global AM 1.5 solar irradiation, which is much higher than that of device solely sensitized by N719（5.29%）under the same conditions. Mechanistic investigations are carried out by various spectral and electrochemical characterizations.

关键词： Dye-sensitized solar cells Co-adsorbent Enhanced performance Co-sensitization

Inhibitory effect of H_(3+x)PMo_(12-x)V_xO_(40)-Ton the self-polymerization of methyl methacrylate

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Chinese Chemical Letters 2016年第4期27卷 613-618页

作者： Yan-Bing Yin Hui-Song Wang Yu-Lin Yang rui-qing fan Guo-Hua Dong Li-Guo Wei College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China Department of Chemistry Harbin Institute of Technology Harbin 150001 China College of Environmental and Chemical Engineering Heilongjiang University of Science and Technology Harbin 150022 China

In this work,a series of molybdovanadophosphoric heteropoly acid quaternary ammonium salts H_（3＋x）PMo_（12 -x）V_xO40-T were synthesized and employed as a reaction inhibitor in the selfpolymerization of methyl methacrylate（MMA）.The polymerization inhibition effect of H_（3＋x）PMoPMo_（12 -x）V_xO40-T）with different number of vanadium atoms and reaction dosages was investigated using differential scanning calorimetry（DSC）.It shows that the inhibitory effect was improved with the increasing dosages of H_（3＋x）PMoPMo_（12 -x）V_xO40-T）,and the polymerization inhibition was also affected by the number of vanadium atoms in the H_（3＋x）PMo_（12 -x）V_xO40-T .Furthermore,cyclic voltammograms（CV）was used to probe the mechanism of the inhibition reaction with H3＋*** result of CV indicates that the inhibition reaction is an oxidation–reduction reaction.H_（3＋x）PMo_（12 -x）V_xO40-T can react directly with the MMA monomer radicals,which eliminated the MMA monomers,and therefore the self-polymerization of the MMA can be effectively inhibited by H_（3＋x）PMo_（12 -x）V_xO40-T.

关键词： Molybdovanadophosphoric heteropoly acid Quaternary ammonium salt Methyl methacrylate Differential scanning calorimetry Cyclic voltammograms Inhibition effect

CdS quantum dot sensitized p-type NiO as photocathode with integrated cobaloxime in photoelectrochemical cell for water splitting

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Chinese Chemical Letters 2015年第1期26卷 141-144页

作者： Yong Na Bo Hu Qiu-Ling Yang Jian Liu Li Zhou rui-qing fan Yu-Lin Yang Department of Chemistry Harbin Institute of Technology Center of Ultra-Precision Optoelectronic Instrument Engineering Harbin Institute of Technology

CdS sensitized NiO electrode was used as the photoactive cathode in a photoelectrochemical cell for water splitting,avoiding the use of a sacrificial electron *** increment under visible light irradiation was observed after integration of[Co（dmgH）_2（4-Me-py）Cl]（1） to the photocathode,suggesting 1 could accept electrons from photoexcited CdS for water reduction and NiO could move the holes in the valence band of CdS to anode for water oxidation.

关键词： Quantum dot Photocathode Cobaloxime Photoelectrochemical cell Water splitting

Relaxation of Chain Extension of Amorphous PET Fiber Above the Glass Transition Temperature

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Chinese Chemical Letters 2000年第10期11卷 925-928页

作者： Xin LINGHU, Jun ZHAO, rui SONG, qing Rong fan (Polymer Physics Laboratory, Center of Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080) Polymer Physics Laboratory Center of Molecular Science Institute of Chemistry Chinese Academy of Sciences

The recovery of amorphous PET fiber in global chain orientation but nearly random segmental orientation (GOLR) state was studied by the hot shrinkage measurement above the glass transition temperature. The relaxation curves in the form of di-exponential decay were acquired and the change of two special times with the variation of treating temperature and residual recovery ratio ' was discussed.

关键词： GOLR state PET recovery of chain extension hot shrinkage measurement.

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调控分子组装过程的研究进展

高分子学报 2022年第11期53卷 1316-1323页

作者：范庆瑞毛俊强王健君中国科学院化学研究所北京100190

生命系统通过精确地调控组装过程,根据实际需求将有限的原料组装成具有不同聚集结构的材料,极大地丰富了材料的形式与功能.对分子组装的热力学环境与动力学聚集速率进行独立且精确地调控,是组装得到各种功能材料的关键.本文简单介绍了... 详细信息

生命系统通过精确地调控组装过程,根据实际需求将有限的原料组装成具有不同聚集结构的材料,极大地丰富了材料的形式与功能.对分子组装的热力学环境与动力学聚集速率进行独立且精确地调控,是组装得到各种功能材料的关键.本文简单介绍了本课题组利用溶剂重结晶策略,通过控制重结晶的温度及温度变化率在精确控制溶剂分子组装过程方面的研究进展.

关键词：分子自组装溶剂重结晶组装过程

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PLZF^posc-KIT^pos-delineated A1-A4-differentiating spermatogonia by subset and stage detection upon Bouin fixation

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Asian Journal of Andrology 2019年第3期21卷 309-318页

作者： rui-Ling Tang Li-qing fan Institute of Reproduction and Stem Cell Engineering School of Basic Medicine Science Central South University Changsha 410078 China

While hallmarks of rodent spermatogonia stem cell biomarkers' heterogeneity have recently been identified, their stage and subset distributions remain unclear. Furthermore, it is currently difficult to accurately identify subset-specific SSC marker distributions due to the poor nuclear morphological characteristics associated with fixation in 4% paraformaldehyde. In the present study, testicular cross-sections and whole-mount samples were Bouin fixed to optimize nuclear resolution and visualized by immunohistochemistry (IHC) and immunofluorescence (IF). The results identified an expression pattern of PLZFhighc-KITpos in A1 spermatogonia, while A2–A4-differentiating spermatogonia were PLZFlowc-KITpos. Additionally, this procedure was used to examine asymmetrically expressing GFRA1 and PLZF clones, asymmetric Apr and false clones were distinguished based on the presence or absence of TEX14, a molecular maker of intercellular bridges, despite having identical nuclear morphology and intercellular distances that were <25 μm. In conclusion, this optimized Bouin fixation procedure facilitates the accurate identification of spermatogonium subsets based on their molecular profiles and is capable of distinguishing asymmetric and false clones. Therefore, the findings presented herein will facilitate further morphological and functional analysis studies and provide further insight into spermatogonium subtypes.

关键词： asymmetric division cellular homolog of feline sarcoma viral oncogene v-kit false clones glial cell line-derived neurotrophic factor receptor alpha 1 promyelocytic leukemia zinc finger spermatogonia stem cell

The New Methods for Characterization of Molecular Weight of Supramolecular Polymers

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Chinese Journal of Polymer Science 2024年第10期42卷 1403-1413,I0006页

作者： Hui Liu rui Hu Zi-qing Hu Xiao-fan Ji Key Laboratory of Materials Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Materials Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China

Supramolecular polymers,as a type of dynamic polymers,are subordinate to the interdisciplinary field of polymer chemistry and supramolecular chemistry,whose development has greatly promoted the prosperity of new ***,molecular weight is one of the most important parameters of supramolecular polymers,which affects the physical/chemical properties and processing applications of *** new methods for characterizing the molecular weight of supramolecular polymers is crucial for advancing the development of supramolecular *** this review,we elaborate and summarize three strategies for characterizing the molecular weight of supramolecular polymers that recently reported by our research group according to the characteristics of supramolecular polymers,including(1)the molecular weight distinction corresponding to variable fluorescence colors,(2)matching different molecular weights with different fluorescence lifetime,(3)transforming supramolecular polymers into mechanically interlocked polymers or covalent ***,we also discuss the limitations of current methods for characterizing supramolecular *** hope that this review can promote the development of supramolecular polymers and significantly inspire to exploit new methods to characterizing molecular weight of supramolecular polymers.

关键词： Supramolecular polymers Molecular weight Self-assembly Mechanically interlocked polymers Dynamic polymers

Integrating lipidomics and gut microbiota to study the anti-hyperlipidemia effect of Sargentodoxae Caulis extract

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Traditional Medicine Research 2025年第1期10卷 1-11页

作者： Xiao-Xiao Zhang Li Jia Xiu-Jun Zhan Charity Ngina qing-rui Zhang Xiao-Ge Li Qi-Bao Jiang Shi Bai Miao-Miao Jiang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjin 301617China Haihe Laboratory of Modern Chinese Medicine Tianjin 301617China School of Medicine Taizhou UniversityTaizhou 318000China.

Background:Sargentodoxae Caulis(SC)is the vine stem of Sargentodoxa Cuneata(Oliv.)Rehd.&*** in ***,and it in traditional Chinese medicine has been known for promoting blood circulation and removing blood stasis as recorded in the ancient book“Illustrated Classics of Materia Medica”.It has been used effectively to treat blood stasis too in modern clinical ***,the anti-hyperlipidemia effect of SC is not fully *** paper aims at exploring the use of SC stems to improve the balance of blood lipids in the body,and its new role in treating ***:The effects of SC extract on hyperlipidemia were explored by combining lipidomics and gut ***,we explored the potential mechanism of SC in treating hyperlipidemia by pathway ***:The results showed that the stem extract of SC could restore the physiological and biochemical indices of hyperlipidemia in mice,as well as repair the morphological and structural damage to *** to the Model group,the SC extract significantly reduced the liver index,epididymal fat index,and Lee’s *** also significantly decreased serum levels of total cholesterol,triglycerides,low-density lipoprotein cholesterol,peroxisome proliferator-activated receptor gamma(PPAR-γ),D-lactate,and free fatty acids,while significantly increasing the relative content of peroxisome proliferator-activated receptor alpha(PPAR-α).These changes were statistically ***-targeted lipidomics,based on LC-MS,were utilized to investigate the lipid metabolism characteristics in serum,liver,and epididymal fat of the *** was observed that,compared to the blank group,the Model group exhibited significant changes primarily in glycerol lipids and *** treatment group also displayed alterations in these lipids.A total of 38,81,and 27 differential lipids were identified in serum,liver,and epididymal fat samples,*** these,14 common differenti

关键词： hyperlipidemia Sargentodoxae Caulis lipidomics intestinal flora

Syntheses,Crystal Structures and Luminescent Properties of Three New Gallium Complexes Containing Pyridine-2,6-dicarboxylic Acid

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Chemical Research in Chinese Universities 2012年第6期28卷 936-941页

作者： ZHOU Guang-peng YANG Yu-lin fan rui-qing Department of Chemistry Harbin Institute of Technology Harbin 150001 P. R. China

Three new gallium complexes formulated as [Ga（PDA）2 ][Ga（H2O）（PDA）（phen）]·4H2O（1）,[Ga（PDA） 2]·（H2IN）·2H2O（2） and [Ga（OH）（PDA）（H2O）] 2（3）（H2PDA=pyridine-2,6-dicarboxylic acid;phen=1,10-phenanthroline;HIN=isonicotinic acid） have been synthesized under hydrothermal *** the mixed-ligand system of complex 1,PDA2 and phen are connected to the central Ga 3＋ cation as tri-and bi-dentate ligands,*** complex 2,each Ga 3＋ cation is six-coordinated by two PDA 2 anions *** 3 shows a binuclear structure,with the bond distance of Ga1― Ga2 being 0.30061（3） *** 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing *** the three complexes exhibit intense blue emission at room temperature in the solid state,which are attributed to π＊-π transition centered on the ligands.

关键词： Gallium complex Crystal structure Luminescent property

WAPN:a distributed wormhole attack detection approach for wireless sensor networks

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第2期10卷 279-289页

作者： fan-rui KONG Chun-wen LI qing-qing DING Guang-zhao CUI Bing-yi CUI Department of Automation. Tsinghua University Beijing 100084. China State Key Lab of Power Systems Departmet of Electrical Engineering Tsinghua University Beijing 100084 China State Key Lab of Informational Electric Apparatus in Henan Zhengzhou 450002 China Department of Phvsics Nanjing University Nanjing 210093 China

As the applications of wireless sensor networks(WSNs) diversify,providing secure communication is emerging as a critical requirement. In this paper,we investigate the detection of wormhole attack,a serious security issue for WSNs. Wormhole attack is difficult to detect and prevent,as it can work without compromising sensor nodes or breaching the encryption key. We present a wormhole attack detection approach based on the probability distribution of the neighboring-node-number,WAPN,which helps the sensor nodes to judge distributively whether a wormhole attack is taking place and whether they are in the in-fluencing area of the attack. WAPN can be easily implemented in resource-constrained WSNs without any additional requirements,such as node localization,tight synchronization,or directional antennas. WAPN uses the neighboring-node-number as the judging criterion,since a wormhole usually results in a significant increase of the neighboring-node-number due to the extra attacking link. Firstly,we model the distribution of the neighboring-node-number in the form of a Bernoulli distribution. Then the model is simplified to meet the sensor nodes' constraints in computing and memory capacity. Finally,we propose a simple method to obtain the threshold number,which is used to detect the existence of a wormhole. Simulation results show that WAPN is effective under the conditions of different network topologies and wormhole parameters.

关键词： Wireless sensor networks (WSNs) Security Wormhole detection