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supramolecular
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  超分子
     Syntheses and Crystal Structures of Supramolecular Compounds [M(4,4'-bipy)_2(H_2O)_4]·(4,4'-bipy)_2·(3,5-diaba)_2·8H_2O](M=Co,Ni,Cd)
     超分子化合物[M(4,4'-bipy)_2(H_2O)_4]·(4,4'-bipy)_2·(3,5-diaba)_2·8H_2O](M=Co,Ni,Cd)的合成及晶体结构
短句来源
     Synthesis and crystal structure of supramolecular complex {Ni(C_7H_5O_2)_2[(C_3H_4N_2S)_2O]}_n
     超分子配合物{Ni(C_7H_5O_2)_2[(C_3H_4N_2S)_2O]}_n的合成和晶体结构
     Synthesis and the Network Structure of the Supramolecular Compound [NEt_4][Mn(salophen)(H_2O)_2]_2[Fe(CN)_6]·H_2O·CH_3OH
     [NEt_4][Mn(salophen)(H_2O)_2]_2[Fe(CN)_6]·H_2O·CH_3OH超分子化合物的合成和结构
短句来源
     Synthesis and crystal structure of a supramolecular coordination polymer [Cu_2 (phen)_2(HPO_4)(H_2O)_2]_2[PMo_3~Ⅴ Mo_9~ⅥO_(40)] · 2H_3O
     超分子配位聚合物[Cu_2(phen)_2(HPO_4)(H_2O)_2]_2[PMo_3~ⅤMo_9ⅥO_(40)]·2H_3O的合成与晶体结构
     Synthesis and crystal structure of 3-D supramolecular complex [Cd(C_(12)H_8N_2)_2·(C_(23)H_(14)O_3)_2·H_2O]_n
     三维超分子配合物[Cd(C_(12)H_8N_2)_2·(C_(23)H_(14)O_3)_2·H_2O]_n的合成和晶体结构
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  超分子的
     Synthesis, Structure and Spectroscopic Properties of Copper(I)/Gold(I) Supramolecular Complexes Containing Phosphine, Nitrogen Heterocycle Ligands
     含膦、氮杂环的Cu~I/Au~I配位超分子的合成、表征及其光谱性质研究
短句来源
     The results would shed light on the molecular mechanism of urolithiasis induced by injury of renal epitheial membrane at the molecular and supramolecular level.
     本结果有助于在分子和超分子的水平上阐明肾上皮细胞膜损伤后诱导肾结石形成的的分子机制。
     The research of coordination polymers and supramolecular not only connects inorganic and organic chemistry but also involves basic theory and applications.
     配位聚合物及超分子的研究,不仅沟通了无机化学与有机化学的研究,而且集基础研究与应用研究于一体。
短句来源
     The association constants of the supramolecular complexes were determined from the fluorescence spectroscopic titration data.
     根据静态猝灭过程的描述式由荧光光谱滴定数据计算了它们的结合常数 ,发现锌 (Ⅱ )配合物与AAQ超分子的结合常数小于自由羧卟啉与AAQ超分子的结合常数。
短句来源
     This paper introduces the fundamental concepts study nd application of supramolecular in life science, matezial science and Biochemistry.
     本文介绍了超分子的基本概念及其在生命科学,材料科学和生物化学中的研究与应用。
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  “supramolecular”译为未确定词的双语例句
     Studies on the Immobilized Supramolecular Inclusion Complex of Iron-porphyrin as an Analogue for Peroxide Proteinase
     Studies on the Immobilized Supramolecular Inclusion Complex of Iron-porphyrin as an Analogue for Peroxide Proteinase
短句来源
     Cooper and Zinc Superoxide dismutase from Peking duck erythrocytes forms a supramolecular double-helix in the crystal
     Cooper and Zinc Superoxide dismutase from Peking duck erythrocytes forms a supramolecular double-helix in the crystal
短句来源
     The supramolecular complex crystal system belongs to Orthorhombic, space group Pna2(l), a= 31.969(5), b= 14.828(2), c= 11.7679(19), V= 5578.5(16), Z=3, F(000)=2300.2 , R1=0.0565,wR2=0.175.
     晶体属正交晶系,空间群为Pna2(1),a=31.969(5),b=14.828(2),c=11.7679(19),V=5578.5(16),Z=3,F(000)=2300.2, R1=0.0565,wR2=0.175。
     Trans-[FeCl_2(H_2O)_4]+ was detected for the first time as part of supramolecular adducts of [FeCl_2(H_2O)_4]Cl·(C_~36 H_~36 N_~24 0_~12 )·4H_2O by X-ray diffraction analysis.
     作为[FeCl_2(H_2O)_4]Cl·(C_(36)H_(36)N_(24)0_(12))·4H_2O加合物的一部分,反式[FeCl_2(H_2O)_4]~+的结构首次被单晶X 射线衍射分析方法加以证实。
短句来源
     Synthesis and Crystal Structure of 2D Supramolecular Compoud [Co(phth)(Phen)(H_2O)_3].H_2O
     [Co(phth)(Phen)(H_2O)_3].H_2O的合成与晶体结构
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  supramolecular
Enzyme-catalyzed preparation of supramolecular structured hydrogel of polypseudorotaxanes derived from the self-assembly of α-CD
      
Hydrogen bond interaction influences the molecular orientation and conformation of these two-dimensional supramolecular architectures.
      
Composting of hydrolytic lignin by a microbial association changed its molecular-weight composition, acid-base properties, and supramolecular structure.
      
Binding isotherms were indicative of cooperative interactions in which alcohols formed supramolecular structures with hydrated molecules of polysaccharides and inclusion complexes with amylose and side chains of amylopectin.
      
The formation of supramolecular complexes through cooperative hydrophobic interactions between aldehydes and cornstarch polysaccharides was the preferential mechanism of the sorption.
      
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Our recent investigations have established that the formation of helical supramolecular complexes of amylose 1 or its derivatives with long-chain substrates in both aqueous and DMSO-H_2O mixed-solvent systems is accompanied by conformational changes of the macromolecules. This paper reports the results from an investigation of the hydrolysis of five esters of p-nitrophenol, to wit, the acetate 2, the valerate 3, the caprylate 4, the laurate 6 and the palmitate 6, in the 1:1 V/V DMSO-H_2O mixture with amylose...

Our recent investigations have established that the formation of helical supramolecular complexes of amylose 1 or its derivatives with long-chain substrates in both aqueous and DMSO-H_2O mixed-solvent systems is accompanied by conformational changes of the macromolecules. This paper reports the results from an investigation of the hydrolysis of five esters of p-nitrophenol, to wit, the acetate 2, the valerate 3, the caprylate 4, the laurate 6 and the palmitate 6, in the 1:1 V/V DMSO-H_2O mixture with amylose 1 as a catalyst. Two buffers were used,viz. 0.01M sodium borate or sodium bicarbonate; their pH values are 9.5 in pure water. The observed rate constants, k_(obs), for the hydrolysis of the substrates were determined by monitoring the absorbance at 410 nm. At 0.01M borate buffer, only substrate 2 shows no kinetic saturation, obviously because it possesses a much shorter chain. With 3 and 4 on the borderline, all others show saturation behavior, and the k_c, and K_d values obtained from linear Lineweaver-Burk plots are listed in Table 1. The distinctively different rate profiles for 5 and 6 under various conditions are shown in Fig. 1. For the substrate 6,k_c is over two orders of magnitude larger than k_(un). More notably, if the bimolecular rate constants of 2, 5 and 6 with glucose as the catalyst were taken as the references and compared with the k_2 of 2 and the approximate k_c/K_d~* values of 5 and 5 in the carbonate buffer, we found that on 2, amylose has the same catalytic effect as glucose, but on 5 and 6, it produced remarkable rate accelerations of 2.8×10~2 and 5.6×10~3 fold, in accord with anticipations that more effective inclusion of the longer-chain substrate by the helical conformation of amylose will be accompanied by more effective catalysis of the substrate reaction. Moreover, the parallel trends in the k_e/K_(un) and k_c/K_d~* values all indicate that the catalytic efficiencies increase with increasing chain-lengths of the substrates. The K_d values also show that the stabilities of the inclusion complexes increase with the lengths of the hydrocarbon chains. Thus all facts lead to the same conclusion: the formation of supramolecular complexes is a prerequisite for the catalyzed hydrolysis of the substrates. Indeed, it is rather gratifying to find that actually a linear relationship exists between In (1/K_d) and the number of carbon atoms of the alkyl groups of these esters. From this linear relationship the free energy change △μ~θ of the process of phase-transfer from the bulk phase to the helical cavity for each methylene group can be estimated. The value is-0.15 kcal/mol, much smaller than the corresponding value (-0.88 kcal/mol) for the transfer from aqueous to hydrocarbon phases. Since the polarity differential between our bulk phase (50% aqueous DMSO) and the ether-like cavity is small, the observed difference in free-energychange values appears natural. In the high concentration regions of the rate versus amylose concentration profile, experimental results deviate from the saturation kinetics. This phenomenon was later demonstrated to be caused by cross-lining of the amylose macromolecules via coordination-complex formation with the borate ions. This situation may be treated in a simplified manner as "borate-plus-host" inhibition. Another strong evidence for this phenomenon is provided by the fact that perfect saturation-kinetics curves were obtained when the carbonate buffer was used in place of the borate.

我们研究了在DMSO-H_2O混合溶剂内,在糖淀粉存在或不存在的条件下,对硝基苯酚乙酸酯、戊酸酯、辛酸酯、十二酸酯和十六酸酯的水解反应,所用的缓冲液体系为硼酸盐和碳酸盐两种。除乙酸酯外,糖淀粉对其它受物水解的催化都遵循饱和动力学。由动力学实验得出的络合物解离常数K_d和络合物催化效率κ_c/K_d~*;表明:包结络合物的稳定性随受物链长的增长而增大,与以葡萄糖为催化剂的二级反应速度常数κ_2相比,糖淀粉对十二酸酯和十六酸酯催化效率分别增加了280和5600倍。催化效率的来源可归因于糖淀粉宿主螺旋内穴提供的微环境效应。在硼酸钠缓冲液体系中,表观速度常数K_(obs)—糖淀粉浓度曲线在高浓度区域下降而偏离饱和动力学。实验证明,这是由于糖淀粉分子间或分子内烃基与硼酸根离子配位而引起的,并可近似地处理为“硼酸根离子加宿主抑制”机制,从而解出抑制络合物解离常数K_d~′。当用碳酸盐缓冲液代替硼酸盐缓冲液时,则得到典型的非抑制性饱和动力学曲线。

This paper studied the supramolecular structure and function of spinachthylakoid membranes particles. Those ranging 20~100 nm in their diameter havethe function of PSI and those with diameter of 100~500 nm have the function ofPSII. The supramolecular particles with their diameter of 8~14 nm on the granaand stroma thylakoid membranes with the function of PSI. The PSII supramole-cular particles present Gauss distribution at centers of 15 nm. 12.5 nm, 14 nm onES, EF and PF face respectively.

对菠菜类囊体膜的亚微结构和功能进行了初步研究。结果表明,在基粒和间质类囊体膜上,分布着一些具有PSI活性、直径为8~14nm的膜颗粒,位于基粒类囊体的EF面,分布着较大的,且具有PSⅡ活性的膜颗粒。分布于ES,EF和PF面上的PSII膜颗粒的直径分别为15nm,12.5 nm和14nm,并呈正态分布。

Freeze-fracture electron microscopy enables us to observe and count the freeze-fracture particles which correspond to the different functional components of thylakoid membranes. The present paper reports the observation on freeze-fracture ultra(?)tructure of thylakoid mem- branes and the analysis of proteins by the SDS-polyacrylamide gel electrophoresis within the membranes from differenly located leaves of maize.In the past,we found that the leaies sub- tending the ear of maize had a much higher chlorophyll...

Freeze-fracture electron microscopy enables us to observe and count the freeze-fracture particles which correspond to the different functional components of thylakoid membranes. The present paper reports the observation on freeze-fracture ultra(?)tructure of thylakoid mem- branes and the analysis of proteins by the SDS-polyacrylamide gel electrophoresis within the membranes from differenly located leaves of maize.In the past,we found that the leaies sub- tending the ear of maize had a much higher chlorophyll content,a lower chlorophyll a/b ratio and more staking thylakoid membranes,and provided the photosynthetic energy used to fill the maize seeds more than that of other leaves(Zuo et al.1987).Recently,we have fur- ther found that the particle densities of all four faces of thylakoid membranes from the ear leaf were the highest,than those,successively,from the terminal leaf,and the fifth leaf(from the base of the plant)(table 1).The particle densities on all four fracture faces of thylakoid membranes isolated from the ear leaves of maize were significantly higher than those from the terminal leaves with the increases of 19% in EFs,28% in PFs and 20% in PFu.Inoreases in particle densities on the PFs,EFs and PFu faces result in increased densities of LHCP Ⅱ,PS Ⅱ and PS (?) reactions centres,respectively. It is significant that this supramolecular architecture of the ear leaves is consistent with our analytical results of the SDS-polyacrylamide gel electrophoresis within the membranes(a detailed report in another paper).The contents of major polypeptides of 21kD(LHCP Ⅰ) and 25kD(LHCP Ⅱ)in thylakoid membranes from the ear leaves were more than those from the terminal leaves.The characteristics of both supramolecular architecture and poly- peptide components are in favour of absorbing,transferring,distributing and conversing light (?)nergy in the course of photosynthesis of the ear leaves in maize.

对玉米(Zea mays)营养生长期中的下位叶(第5叶)和生殖生长时期的中位叶(果穗叶)和上位叶(顶生叶)的成熟叶片的冰冻撕裂电镜观察,发现叶绿体类囊体膜所有撕裂面上各种功能蛋白颗粒的密度均以果穗叶中的最大,依次是顶生叶和第5叶的。以果穗叶与顶生叶相比,其类囊体膜中包含有绝大多数 LHCP 的 EFs 颗粒增加28%;包含有 PSI 反应中心与LHCP 相结合的 PFu 颗粒增加20%;包含有 PSII 反应中心与 LHCP 相结合的 EFs 颗粒增加19%。这一超分子结构的电镜观察结果与其 SDS-聚丙烯酰胺梯度凝胶板电泳解析的结果相一致。即 SDS-聚丙烯酰胺梯度凝胶板电泳解析的色素带上,同样是果穗叶类囊体膜上呈现的21kD(LHCP Ⅰ)和25 kD(LHCPⅡ)多肽的色素带相应地也比顶生叶的加宽,表明果穗叶叶绿体类囊体膜上镶嵌的叶绿素 a/b 蛋白复合体等比顶生叶的显著地增多,这有利于果穗叶光合作用中光能的吸收、传递、分配和转化。

 
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