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Multifunction-oriented high-mobility polymer semiconductors

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national Science Review 2024年第3期11卷 16-19页

作者： Mingliang Zhu yunlong Guo yunqi {2. beijing national {2. for molecular sciences Organic Solids Laboratory Institute of Chemistry Chinese Academy of Sciences School of Chemical sciences University of Chinese Academy of Sciences

The discovery of conductive polyacetylene has initiated interdisciplinary research into condensed matter physics and synthetic chemistry in organic electronics. Unlike their inorganic and small-molecule counterparts, polymer semiconductors possess the inherent advantages of facile solution processing,large-area manufacturing, excellent mechanical strength and intrinsic flexibility.

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Characterization of the pheromone receptors in Mythimna loreyi reveals the differentiation of sex pheromone recognition in Mythimna species

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Insect Science 2024年第1期31卷 173-185页

作者： Chan Wang Lei liu Tian-yu Huang yu Zhang Yang liu gui-Rong Wang State key laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina Guangdong laboratory of Lingnan Modern Agriculture ShenzhenGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenChina School of Forestry Northeast Forestry UniversityHarbinChina key laboratory of Biohazard Monitoring Green Prevention and Control for Artificial GrasslandMinistry of Agriculture and Rural AffairsInstitute of Grassland Research of Chinese Academy of Agricultural SciencesInner Mongolia HohhotChina

Pheromone receptors(PRs)are key proteins in the molecular mechanism of pheromone recognition,and exploring the functional differentiation of PRs between closely related species helps to understand the evolution of moth mating *** components of the agricultural pest Mythimna loreyi have turned into(Z)-9-tetradecen-1-yl acetate(Z9-14:OAc),(Z)-7-dodecen-1-yl acetate(Z7-12.OAc),and(Z)-11-hexadecen-1-yl acetate,while the composition differs from that of *** in the genus *** understand the molecular mechanism of pheromone recognition,we sequenced and analyzed antennal transcriptomes to identify 62.odorant receptor(OR)*** expression levels of all putative ORs were analyzed using differentially expressed gene *** candidate PRs were quantified and functionally characterized in the Xenopus oocytes ***6 and MlorPR3 were determined to be the receptors of major and minor components Z9-14:OAc and Z7-12.***1 and female antennae(FA)-biased MlorPR5 both possessed the ability to detect pheromones of sympatric species,including(Z,E)-9,12.tetradecadien-1-ol,(Z)-9-tetradecen-1-ol,and(Z)-*** on the comparison of PR functions between *** and ***,we analyzed the differentiation of pheromone recognition mechanisms during the evolution of the mating systems of 2.Mythimna species.

关键词： antennal transcriptome Mythimna loreyi pheromone receptor sex pheromone Xenopus oocyte

Biomimetic preparation of elastomeric fibers with micro/nano structures on the surfaces

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Progress in Natural Science:Materials International 2012年第5期22卷 493-501页

作者： Quanyong liu a,Liqun Zhang c,Lei Jiang a,b a key laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education,School of chemistry and Environment,Beihang University,beijing 100191,PR china b beijing national laboratory for molecular sciences(MNLMS),key laboratory of organic solids,institute of chemistry,chinese academy of sciences,beijing 100190,PR china c State key laboratory of organic-Inorganic Composites,beijing University of Chemical Technology,beijing 100029,PR china key laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of Chemistry and Environment Beihang University Beijing 100191 PR China State key laboratory of {2.–In{2. Composites Beijing University of Chemical Technology Beijing 100029 PR China beijing national {2. for molecular sciences (MNLMS) Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 PR China

Bioinspired by the spinning of spider silks,the biomimetic preparation of elastomeric fibers with micro/nano structures on the surfaces was attempted,and as a result,three types of ultrafine fullvulcanized powdered nitrile-butadiene rubber(UFPNBR)/thermoplastic polyurethane(TPU) fibers were *** first fiber was only decorated by the micron-sized grooves on the surface,and the second fiber was dotted by both the micron-sized grooves and nanometer-sized spheres on the surface,while the third fiber was helical and with a concave-convex *** biomimetic preparation mainly consisted of four steps,and the formation mechanism was described as an integrated mechanism of diffusion,coagulation,self assembly,and microphase *** micro/nano structures on the fibers were controlled by changing the mass ratio of UFPNBR to TPU and environment of vertical *** UFPNBR/TPU elastomeric fibers were hoped to have an integrated function of superhydrophobicity,self cleaning,and mechanical improvement of toughness or strength.

关键词： Biomimetic preparation Elastomeric fiber Micro/nano structure Self assembly Spider silk

Conjugated Polymers as Multifunctional Biomedical Platforms:Anticancer Activity and Apoptosis Imaging

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Conjugated Polymers as Multifunctional Biomedical Platforms:...

Enhancing comprehension of water vapor on adsorption performance of VOC on porous carbon materials and its application challenge

第一届全国生物物理化学会议暨生物物理化学发展战略研讨会

作者： Libing liu,Shu Wang~* beijing {2. laboratory for molecular sciences,and key laboratory of organic solids,institute of chemistry,chinese academy of sciences,beijing 100190,china

＜正＞Conjugated polymers（CPs） have established themselves as useful components in optoelectronic devices as diverse as light-emitting diodes,field effect transistors, photovoltaic cells and organic semiconductor **... 详细信息

关键词： Conjugated polymers anticancer activity apoptosis imaging

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Frontiers of Environmental Science & Engineering 2024年第9期18卷 51-66页

作者： Xiaolong Yao Kuan Wan Wenxin yu Zheng liu School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China State Environmental Protection key laboratory of Food Chain Pollution Control Beijing Technology and Business UniversityBeijing 100048China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China

Volatile organic compounds(VOC)have been proven to cause considerable harm to both the ecological environment and human *** VOC emissions are primarily generated by the industrial *** utilization of porous carbon as an adsorbent has emerged as an effective method for the efficient removal of VOC from industrial ***,during the actual production processes,VOC exhaust gases are often mixed with water vapor,which poses challenges for adsorption *** review provides a comprehensive overview of the remarkable advancements in various carbon materials in terms of their ability to adsorb both VOC and water ***,it systematically summarizes the influence of surface groups on adsorbents and the molecular properties of VOC on their adsorption by carbon ***,this review introduces the mechanism underl{2. adsorption-adsorbent interactions and discusses the construction of models for adsorbing water vapor and *** challenges associated with the application of carbon materials for VOC adsorption in humid environments are also *** review aims to offer theoretical and technical guidance for the effective purification of moist VOC waste gases emitted from industrial sources,thereby achieving precise control of VOC emissions.

关键词： Adsorption Water vapor Carbon-based adsorbents Surface functional groups VOC properties

Studies on the Temperature Effect on Bacteriorhodopsin of Purple and Blue Membrane by Fluorescence and Absorption Spectroscopy

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Acta Biochimica et Biophysica Sinica 2006年第10期38卷 691-696页

作者： Lan-ying CHENG~(1,2. yue ZHANG~3 Shi-{2. liu~1 Kun-Sheng HU~3 Kang-Cheng RUAN~2. 1 College of Life Science,Sichuan University,Chengdu 610064,china 2.State key laboratory of molecular Biology,institute of Biochemistry and Cell Biology,Shanghai institutes for Biological sciences,{12. academy of sciences,Shanghai 2.0031,china 3 institute of Biophysics,Academia Sinica,beijing 100101,china College of Life Science Sichuan UniversityChengdu 610064 China State key laboratory of {2. Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of SciencesShanghai 200031 China institute of Biophysics Academia SinicaBeijing 100101 China

Fluorescence and absorption spectra were used to study the temperature effect on theconformation of bacteriorhodopsin (bR) in the blue and purple membranes (termed as bRb and bRprespectively).The maximum emission wavelengths of tryptophan fluorescence in both proteins at roomtemperature are 340 nm,and the fluorescence quantum yield of bRb is about 1.4 fold higher than that of *** temperature increases,the tryptophan fluorescence of bRb decreases,while the tryptophan fluorescenceof bRp *** binding study of extrinsic fluorescent probe bis-ANS indicated that the probe can bindonly to bRb,but not to *** results suggest that significant structural difference existed between bRband *** was also found that both kinds of bR are highly thermal *** maximum wavelength of theprotein fluorescence emission only shifted from 340 nm to 346 nm at 100℃.More interestingly,as tempera-ture increased,the characteristic absorption peak of bRb at 605 nm decreased and a new absorption peak at380 nm *** transition occurred at a narrow temperature range (65℃-70℃).These facts indicatedthat an intermediate can be induced by high *** phenomenon has not been reported before.

关键词： bacteriorhodopsin purple membrane blue membrane fluorescence and absorption spectroscopy

Site-specific incorporation of reduction-controlled guest amino acids into proteins for cucurbituril recognition

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chinese Chemical Letters 2024年第5期35卷 193-196页

作者： Zhen Dai Linzhi Tan Yeyu Su Kerui Zhao yushun Tian yu liu Tao liu College of chemistry State Key Laboratory of Elemento-Organic ChemistryNankai UniversityTianjin 300071China State key laboratory of Natural and Biomimetic Drugs Department of Molecular and Cellular PharmacologySchool of Pharmaceutical SciencesPeking UniversityBeijing 100191China

Protein recognition using host-guest recognition approach is of great interest but has been limited mainly to the protein N-terminal ***,we site-specific incorporated two novel non-canonical amino acids containing supramolecular guest motifs into protein via an expanded genetic *** Staudinger reduction reactions,the encoded unnatural residues on protein becoming activated and can be specifically recognized by cucurbit[7]uril(CB[7])and cucurbit[8]uril(CB[8]).We demonstrated that enzyme containing guest amino acid incorporated near the active site can be reversibly regulated by CB[7]recognition,and CB[8]recognition induces protein *** amino acids will make useful addition to the supramolecular toolbox for protein targeting using molecular recognition approaches.

关键词： Protein recognition Host-guest recognition Non-canonical amino acids Staudinger reduction Expanded genetic code

Suppression of Phase and Amplitude Damping Decoherence in a Three-Level Atom in A-Configuration Using Bang-Bang Controls

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Communications in Theoretical Physics 2007年第7期48卷 71-74页

作者： WANG Yan-Hui liu Xiao-Shu LONG gui-Lu1 {2. laboratory for Atomic and molecular Nanosciences and Department of Physics,Tsinghua University,beijing 100084,china2.Tsinghua national laboratory for Information Science and Technology,Tsinghua University,beijing 100084,china key laboratory for Atomic and {2. Nanosciences and Department of Physics Tsinghua University Beijing 100084 China Tsinghua national laboratory for Information Science and Technology Tsinghua University Beijing 100084 China

In this paper,we present decoupling bang-bang operations for the suppression of general decoherence,bothamplitude and phase damping,in a three-level system in *** give a program to design a sequence ofperiodic twinbor... 详细信息

关键词： bang-bang operation general decoherence three-level system

Spatial heterogeneity and compositional profiles of dissolved organic matter in farmland soils across china' Mainland

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Journal of Environmental sciences 2024年第3期137卷 593-603页

作者： Bingjun Han Liyuan Chen Kang Xiao Yang liu Dong Cao Lu yu yujun Li Shu Tao Wenxin liu key laboratory for Earth Surface Processes College of Urban and Environmental SciencesPeking UniversityBeijing 100871China beijing Yanshan Earth Critical Zone national Research Station College of Resources and EnvironmentUniversity of Chinese Academy of SciencesBeijing 101408China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China State key laboratory of Environmental {2. and Ecotoxicology Research Center for Eco-Environmental ScienceChinese Academy of SciencesBeijing 100085China

Dissolved organic matter(DOM) plays an essential role in many geochemical processes,however its complexity, chemical diversity, and molecular composition are poorly understood. Soil samples were collected from 500 vegetable fields in administrative regions of{2.' Mainland, of which 12. were selected for further investigation. DOM properties were characterized by three-dimensional excitation-emission matrix(3D-EEM) fuorescence spectroscopy and Fourier transform ion cyclotron resonance mass spectrometry(FTICRMS)(field intensity is 15 Tesla). Our results indicated that the main constituents were UVA humic-like substances, humic-like substances, fulvic acid-like substances, and tyrosine-like substances. A total of 10,989 molecular formulae with a mass range of 100.04 to 799.59 Da were detected, covering the mass spectrometric information of the soil samples from 2. different regions. CHO and CHON molecules were dominant in DOM, whereas lignin, tannins,and aromatic substances served as the main components. The results of cluster analysis revealed that the soil properties in Jiangxi Province were considerably different from those in other regions. The key backgrounds of the DOM molecular characteristics in the vegetablefield soil samples across{2.' Mainland were provided at the molecular level, with large abundance and great variability.

关键词： Dissolved organic matter(DOM) Fourier transform ion cyclotron resonance mass(FTICR-MS) Excitation-emission matrix(EEM) Vegetable-field soils china' Mainland