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Visible and near-infrared luminescence of polycatenated cationic pyridinone lanthanide networks

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Science China Chemistry 2016年第4期59卷 436-441页

作者： Yubo shu Weisheng Liu Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China

A series of isomorphic lanthanide coordination polymers [Ln（Ⅲ）（MBP）2（NO3）2（Br）- 2C3H60] [Ln=Eu, Tb, Er, Yb, and Gd; MBP=N,N＇-methylene-bis（pyridin-4-0ne）] featuring polycatenated sql cationic network and incorporated bromide counter ion were prepared. Their visible and near-infrared （NIR） luminescence properties were characterized by steady-state excitation and emission spectra, as well as luminescence lifetimes and quantum yields. The D2d dodecahedron coordination geometry causes visible light excitations and strongly monochromatic emissions. The external heavy-atom environment induces remarkable en- hancement on the NIR emissions. The sensitization processes are revealed by analyzing the electronic properties of MBP ligand.

关键词： coordination network lanthanide pyridinone luminescence

Ging-Hsi Wong and Chinese physiopsychology

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Protein & Cell 2013年第8期4卷 563-564页

作者： shu Zheng Institute for the History of Natural Science Chinese Academy of SciencesBeijing 100190China

Ging-Hsi Wong(1897-1968)was a Chinese psychologist,an academician o f the prestigious Academia Sinica(The Academia Sinica was founded in China's Mainland in 1928 by the Kuomintang Nationalist *** was reestablished in Taipei after the Chinese Civil War),and a professor in several universities in China and the United *** one of the pioneers of Western psychology in the country,he played an important role in establishing the fi elds of Physiopsychology and Neuroscience in China.

关键词： establishing universities pioneer

Chaotic Solutions of a Typical Nonlinear Oscillator in a Double Potential Trap

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Communications in Theoretical Physics 2003年第5期39卷 555-558页

作者： FANGJian-shu DepartmentofInformationandCalculatingScience ZhuzhouInstituteofTechnologyZhuzhou412008China DepartmentofPhysics ZhuzhouTeacher‘sCollegeZhuzhou412007China

We have obtained a general unstable chaotic solution of a typical nonlinear oscillator in a double potential trap with weak periodic perturbations by using the direct perturbation method. Theoretical analysis reveals that the stable periodic orbits are embedded in the Melnikov chaotic attractors. The corresponding chaotic region and orbits in parameter space are described by numerical simulations.

关键词：非线性振荡器混沌双势阱直接扰动法

Soluble Two-dimensional Supramolecular Organic Frameworks(SOFs):An Emerging Class of 2D Supramolecular Polymers with Internal Longrange Orders

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Chinese Journal of Polymer Science 2019年第1期37卷 1-10页

作者： shu-Yan Jiang Xin Zhao CAS Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences

Two-dimensional(2D) materials have been demonstrated to exhibit unique properties originating from its 2D nature. In recent years, the construction of 2D materials has become a topic of great interest. This article summarizes the recent advance of 2D supramolecular organic frameworks(SOFs) which are homogeneously constructed in solution phase through self-assembly of rationally designed building blocks. These 2D SOFs are soluble and still maintain stable network structures in solutions, which exhibit uniqueness not only in structures but also in properties. In this concise review, the SOFs-related background is briefly introduced firstly, followed by outlining the research progress of soluble 2D SOFs from the perspective of monomer design, assembly, and structural *** article ends with a personal outlook on the future development of this new class of supramolecular polymers.

关键词： Supramolecular organic frameworks(SOFs) Self-assembly Two-dimensional Supramolecular polymers

Meniscus-Assisted Solution Printing Enables Cocrystallization in Poly(3-alkylthiophene)-based Blends for Field-Effect Transistors

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Chinese Journal of Polymer Science 2023年第8期41卷 1269-1276,I0009页

作者： shu-Yin Zhu Juan Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200438China

The formation of cocrystallization in two various conjugated components may endow the newly formed conjugated cocrystals with multiple functionalities and improved charge transport ***,compared to conjugated small molecules,this strategy is rather limitedly realized in conjugated ***,a simple meniscus-assisted solution printing(MASP)strategy is utilized to achieve the cocrystallization in the blends of two conjugated polymers,i.e.,poly(3-hexylthiophene)(P3HT)and poly(3-octylthiophene)(P3OT),and the cocrystalline structures are correlated closely to their charge *** P3HT/P3OT blends phase separate and crystallize individually in their drop-cast thin *** subjecting the P3HT/P3OT blended solution to MASP,the confined solvent evaporation between two nearly parallel plates triggers them to cocrystallize progressively when accelerating the moving lower *** cocrystallization kinetics and the changes in P3HT/P3OT molecular structures are ***,these different crystalline structures of P3HT/P3OT blends are applied in organic fieldeffect transistors,imparting the cocrystallization-enhanced charge transport than respective P3HT and P3OT crystal *** MASP method can be extended to craft cocrystals of other conjugated polymer blends for their diverse optoelectronic applications.

关键词： Conjugated polymer blends Polythiophene Cocrystallization Charge mobility Meniscus-assisted solution printing

Palladium Nanoparticles Supported on a Porous Organic Polymer： An Efficient Catalyst for Suzuki-Miyaura and So- nogashira Coupling Reactions

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Chinese Journal of Chemistry 2016年第4期34卷 373-380页

作者： Xiaomeng Ren Shengnan Kong Qiding shu Mouhai shu School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China

A new porous organic polymer （POP） with high thermal stability and large surface area has been synthesized and applied in the preparation of Pd/POP catalyst. Pd/POP was characterized by XRD, TGA, SEM and TEM. The catalyst consists of highly dispersed palladium nanoparticles of 0.9--4 nm size on POP with a large surface area of 650 m2/g. It presents high catalytic activity for Suzuki-Miyaura and Sonogashira reactions. The catalyst was reus- able for three to five times without significant loss of activity.

关键词： heterogeneous catalysis palladium porous organic polymers Suzuki-Miyaura reaction Sonogashiracoupling reaction

The Important Roles of Water in Protein Folding:an Approach by Single Molecule Force Spectroscopy

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Chinese Journal of Polymer Science 2018年第3期36卷 379-384页

作者： Bo Cheng shu-Xun Cui School of Mechanical Engineering North University of ChinaTaiyuan 030051China Key Lab of Advanced Technologies of Materials Ministry of Education of ChinaSouthwest Jiaotong UniversityChengdu 610031China

The single-chain elasticity of a completely unfolded protein （027）8, modules of human cardiac titin） is studied in different liquid environments by the atomic force microscopy （AFM）-based single molecule force spectroscopy （SMFS）. The experimental results show that there is a clear deviation between the force curves obtained in the aqueous and nonaqueous environments. Such a deviation can be attributed to the additional energy consumed by the rearrangement of the bound water molecules around the chain of the completely unfolded （I27）s chain upon stretching in aqueous solution, which is very similar to the partial dehydration process from a denatured/unfolded to a native/folded protein. Through the analysis of the free energy changes involved in protein folding, we conclude that it is due to the weak disturbance of water molecules and the special backbone structures of proteins that the self-assembly of proteins can be achieved in physiological conditions. We speculate that water is likely to be an important criterion for the selection of self-assembling macromolecules in the prebiotic chemical evolution.

关键词： SMFS Protein Folding Water

Cardiovascular protective properties of gastrodin

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Asian Pacific Journal of Tropical Biomedicine 2022年第4期12卷 141-147页

作者： shu-Ting Yang shu-Bai Liu School of Life Sciences Yunnan UniversityKunming 650091YunnanChina State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming650201YunnanChina

Cardiovascular diseases cause significant morbidity and mortality worldwide,incurring a major public health *** elata Blume is a traditional Chinese herbal medicine that has been widely used to treat central nervous system and cardiovascular ***,as the major active component in Gastrodia elata Blume,can confer protection against cardiovascular *** this review,we summarize the anti-inflammatory actions,anti-cardiac hypertrophy,anti-hypertension,anti-atherosclerosis,and angiogenic effects of gastrodin,as well as its protective effects on vascular cells and against myocardial ischemia-reperfusion *** medical potential of gastrodin in diabetes-related cardiovascular diseases is also discussed.

关键词： Gastrodin Cardiovascular diseases Myocardial ischemia-reperfusion injury Gastrodia elata Blume Anti-atherosclerosis Cardio-protection

Creating chiral superstructures in magnetic quadrupole fields

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National Science Review 2023年第11期10卷 84-85页

作者： shu-Hong Yu Southern University of Science and Technology Hefei National Research Center for Physical Sciences University of Science and Technology of China Department of Chemistry Department of Materials Science and Engineering

Chiral materials refer to species with chiral symmetry, which means the absence of mirror planes or breaking of inversion symmetry in material structures. A material or structure is chiral if it is distinguishable from its mirror images. That is, the chiral materials and their mirror images do not coincide through rotations or translations. Chiral materials are frequently described as ‘handed’ because our hands themselves are *** exists in nature, including the DNA double helix, proteins, amino acids and human hands. Interestingly, biology only adopts one chirality in nature. While DNA, RNA and their building blocks are all right-handed, amino acids and proteins are all left-handed.

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