- 作 者: ( "jianping sang" OR "jian-ping sang" )
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Preparation and photocatalytic activity of CuO/ZnO composite nanostructured filmsMaterials Research Express (IF 2.025) Pub Date : 2018-10-22 ,DOI:10.1088/2053-1591/aae6ffJin-Hua Huang,Jia-Xing Chen,Ya-Fang Tu,Yu Tian,Di Zhou,Guang Zheng,Jian-Ping Sang,Qiu-Ming FuCuO/ZnO composite nanostructured films have been prepared by a simple two-step low-temperature hydrothermal approach. The morphology and structure characterizations demonstrated that CuO coral-like nanostructures were deposited on ZnO nanorod arrays. Experiment on the degradation of methylene blue under Xe lamp irradiation was carried out to evaluate the photocatalytic activities of the samples. It ...
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Divalent Ion-Mediated DNA-DNA Interactions: A Comparative Study of Triplex and DuplexBiophysical Journal (IF 3.699) Pub Date : 2017-08-01 ,DOI:10.1016/j.bpj.2017.06.021Zhong-Liang Zhang, Yuan-Yan Wu, Kun Xi, Jian-Ping Sang, Zhi-Jie Tan
Ion-mediated interaction between DNAs is essential for DNA condensation, and it is generally believed that monovalent and nonspecifically binding divalent cations cannot induce the aggregation of double-stranded (ds) DNAs. Interestingly, recent experiments found that alkaline earth metal ions such as Mg2+ can induce the aggregation of triple-stranded (ts) DNAs, although there is still a lack of deep
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Modeling of flux, binding and substitution of urea molecules in the urea transporter dvUT.Journal of Molecular Graphics and Modelling (IF 2.942) Pub Date : 2017-04-25 ,DOI:10.1016/j.jmgm.2017.04.022Hai-Tian Zhang,Zhe Wang,Tao Yu,Jian-Ping Sang,Xian-Wu Zou,Xiaoqin Zou
Urea transporters (UTs) are transmembrane proteins that transport urea molecules across cell membranes and play a crucial role in urea excretion and water balance. Modeling the functional characteristics of UTs helps us understand how their structures accomplish the functions at the atomic level, and facilitates future therapeutic design targeting the UTs. This study was based on the crystal structure
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Ion transport mechanism in ClC-type channel protein under complex electrostatic potentialWuhan University Journal of Natural Sciences Pub Date : 2016-11-11 ,DOI:10.1007/s11859-016-1198-xTao Yu, Xu Guo, Xuan Ke, Jianping SangIn order to illustrate the ion transport mechanism of chloride channel (ClC) protein, a type of ClC protein, ClC-ec1, from Escherichia coli is embedded into an explicit membranewater system by using software VMD. Then a parallel molecular dynamics (MD) simulation is employed to equilibrate the ClC-ec1 structure for 27.5 ns at temperature 298.15 K. Based on this equilibrated structure, we compute the ...
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Ion transport mechanism in ClC-type channel protein under complex electrostatic potentialWuhan University Journal of Natural Sciences Pub Date : 2016-11-11 ,DOI:10.1007/s11859-016-1198-xTao Yu,Xu Guo,Xuan Ke,Jianping SangIn order to illustrate the ion transport mechanism of chloride channel (ClC) protein, a type of ClC protein, ClC-ec1, from Escherichia coli is embedded into an explicit membranewater system by using software VMD. Then a parallel molecular dynamics (MD) simulation is employed to equilibrate the ClC-ec1 structure for 27.5 ns at temperature 298.15 K. Based on this equilibrated structure, we compute the ...
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Computation and Simulation of the Structural Characteristics of the Kidney Urea Transporter and Behaviors of Urea TransportThe Journal of Physical Chemistry B (IF 3.466) Pub Date : 2015-03-27 ,DOI:10.1021/jp511300uZhe Wang,Tao Yu,Jian-Ping Sang,Xian-Wu Zou,Chengfei Yan,Xiaoqin ZouUrea transporters are a family of membrane proteins that transport urea molecules across cell membranes and play important roles in a variety of physiological processes. Although the crystal structure of bacterial urea channel dvUT has been solved, there lacks an understanding of the dynamics of urea transport in dvUT. In this study, by using molecular dynamics simulations, Monte Carlo methods, and ...
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Ion Binding Energies Determining Functional Transport of ClC ProteinsChinese Physics Letters (IF 2.293) Pub Date : 2014-06-01 ,DOI:10.1088/0256-307x/31/6/068701Tao Yu, Xu Guo, Xian-Wu Zou, Jian-Ping SangThe ClC-type proteins, a large family of chloride transport proteins ubiquitously expressed in biological organisms, have been extensively studied for decades. Biological function of ClC proteins can be reflected by analyzing the binding situation of Cl− ions. We investigate ion binding properties of ClC-ec1 protein with the atomic molecular dynamics simulation approach. The calculated electrostatic ...
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Ising model on evolution networks and its application on opinion formationChinese Physics B (IF 1.652) Pub Date : 2014-05-30 ,DOI:10.1088/1674-1056/23/6/068701Xiao-Long Zhu, Hai-Tian Zhang, Jian-Ping Sang, Sheng-You Huang, Xian-Wu ZouMany phenomena show that in a favorable circumstance an agent still has an updating possibility, and in an unfavorable circumstance an agent also has a possibility of holding its own state and reselecting its neighbors. To describe this kind of phenomena an Ising model on evolution networks was presented and used for consensus formation and separation of opinion groups in human population. In this ...
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Facile Synthesis of SnO2 Nanotube Arrays by Using ZnO Nanorod Arrays as Sacrificial TemplatesJournal of Materials Science & Technology (IF 10.319) Pub Date : 2013-09-12 ,DOI:10.1016/j.jmst.2013.09.003Yafang Tu, Qiuming Fu, Xiaojuan Niu, Jianping Sang, Zhijie Tan, Xianwu ZouSnO2 nanotube arrays have been synthesized by means of a simple and low-cost method. The ZnO nanorod arrays prepared by aqueous chemical growth method were used as templates. By liquid phase deposition, SnO2 nanotubes were obtained with proper deposition time. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction were used to characterize the morphologies and structures ...
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Dynamic fluctuation model of complex networks with weight scaling behavior and its application to airport networksPhysica A: Statistical Mechanics and its Applications (IF 3.778) Pub Date : 2013-09-09 ,DOI:10.1016/j.physa.2013.09.005Hai-Tian Zhang, Tao Yu, Jian-Ping Sang, Xian-Wu ZouAirport networks are a kind of complex systems that display significant fluctuations. To describe this kind of phenomena a dynamical fluctuation model is proposed. In this model the fluctuations in growth rates of weight are exponential. There are two adjustable parameters: the exponent β and the creation probability Pd of a new node. β characterizes the tendency to retain an “optimal” allocation of ...
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Effects of annealing temperature on the properties of ZnO/SnO2 core/shell nanorod arraysMaterials Letters (IF 3.574) Pub Date : 2012-11-01 ,DOI:10.1016/j.matlet.2012.07.037Ya-Fang Tu, Qiu-Ming Fu, Jian-Ping Sang, Zhi-Jie Tan, Xian-Wu ZouAbstract The effects of annealing temperature on the morphologies, structures and optical properties of ZnO/SnO 2 core/shell nanorod arrays were investigated. It is found that the annealing of the samples in a muffle furnace at temperatures up to 900 °C transformed the nanorods into large particles and produced the Zn 2 SnO 4 phase. The photoluminescence results showed that when the annealing temperature ...
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Influences of Mutations on the Electrostatic Binding Free Energies of Chloride Ions in Escherichia coli ClCThe Journal of Physical Chemistry B (IF 3.466) Pub Date : 2012-05-29 ,DOI:10.1021/jp300430fTao Yu,Xiao-Qing Wang,Jian-Ping Sang,Chun-Xu Pan,Xian-Wu Zou,Tsung-Yu Chen,Xiaoqin Zou
Mutations in ClC channel proteins may cause serious functional changes and even diseases. The function of ClC proteins mainly manifests as Cl– transport, which is related to the binding free energies of chloride ions. Therefore, the influence of a mutation on ClC function can be studied by investigating the mutational effect on the binding free energies of chloride ions. The present study provides
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Synthesis and photoluminescence properties of the ZnO@SnO2 core–shell nanorod arraysJournal of Materials Science (IF 4.682) Pub Date : 2011-09-21 ,DOI:10.1007/s10853-011-5944-3Ya-Fang Tu, Qiu-Ming Fu, Jian-Ping Sang, Xian-Wu ZouThe ZnO@SnO2 core–shell nanorod arrays have been synthesized. As the cores, ZnO nanorod arrays were first prepared by aqueous chemical growth method. Then using a simple liquid-phase deposition method, SnO2 was deposited on the ZnO nanorod arrays. Scanning electron microscopy, transmission electron microscopy, and X-ray diffraction were used to characterize the morphologies and structures of the products ...
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A Three-State Multi-Ion Kinetic Model for Conduction Properties of ClC-0 Chloride ChannelBiophysical Journal (IF 3.699) Pub Date : 2010-07-01 ,DOI:10.1016/j.bpj.2010.04.047Xiao-Qing Wang, Tao Yu, Jian-Ping Sang, Xian-Wu Zou, Tsung-Yu Chen, Diana Bolser, Xiaoqin Zou
A three-state, multiion kinetic model was proposed to enable the conduction properties of the mammalian channel ClC-0 to be well characterized. Using this rate-theory based model, the current-voltage and conductance-concentration relations were obtained. The five parameters needed were determined by fitting the data of conduction experiments of the wild-type ClC-0 and its K519C mutant. The model was
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Aspect ratio-dependent optical properties of Ni–P/AAO nano-array composite structureJournal of Materials Science (IF 4.682) Pub Date : 2010-03-30 ,DOI:10.1007/s10853-010-4422-7Feng-Hua Wang, Ya-Fang Tu, Jian-Ping Sang, Sheng-You Huang, Xian-Wu ZouUsing electrochemical deposition, Ni–P nanorod arrays with a series of aspect ratios have been successfully fabricated in the pores of anodic aluminum oxide (AAO) membranes. The aspect ratio of Ni–P nanorods was controlled by the deposition time. The morphologies were analyzed by scanning electron microscopy and transmission electron microscopy. The dependence of the optical absorbance upon the aspect ...
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Single Transverse Spin Asymmetries at Parton LevelCommunications in Theoretical Physics (IF 2.877) Pub Date : 2010-02-01 ,DOI:10.1088/0253-6102/53/2/21Cao Hui-Geng, Ma Jian-Ping, Sang Hua-Zheng
Two factorization approaches have been proposed for single transverse spin asymmetries. One is the collinear factorization, another is the transverse-momentum-dependent factorization. They have been previously derived in a formal way by using diagram expansion at hadron level. If the two factorizations hold or can be proven, they should also hold when we replace hadrons with parton states. We examine
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Preparation of Fe-doped TiO2 nanotube arrays and their photocatalytic activities under visible lightMaterials Research Bulletin (IF 5.6) Pub Date : 2010-02-01 ,DOI:10.1016/j.materresbull.2009.08.020Ya-Fang Tu, Sheng-You Huang, Jian-Ping Sang, Xian-Wu ZouFe-doped TiO{sub 2} nanotube arrays have been prepared by the template-based liquid phase deposition method. Their morphologies, structures and optical properties were investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and UV-vis absorption spectroscopy. Their photocatalytic activities were evaluated by the degradation of methylene blue under visible light ...
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Synthesis and photocatalytic properties of Sn-doped TiO2 nanotube arraysJournal of Alloys and Compounds (IF 6.371) Pub Date : 2009-08-01 ,DOI:10.1016/j.jallcom.2009.04.027Ya-Fang Tu, Sheng-You Huang, Jian-Ping Sang, Xian-Wu ZouAbstract TiO 2 nanotube arrays doped by Sn up to 12 at% have been prepared using template-based liquid phase deposition method. Their morphologies, structures and optical properties have been investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, UV–vis absorption spectroscopy and photoluminescence spectroscopy. The photocatalytic properties of the samples ...
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Effect of etch-treatment upon the intensity and peak position of photoluminescence spectra for anodic alumina films with ordered nanopore arrayJournal of Materials Science (IF 4.682) Pub Date : 2009-07-01 ,DOI:10.1007/s10853-009-3440-9Yi-Fan Liu, Ya-Fang Tu, Sheng-You Huang, Jian-Ping Sang, Xian-Wu ZouPorous anodic alumina membranes (AAMs) were prepared in oxalic acid and then carried on an etch-treatment in phosphoric acid. Using the etch-treatment the photoluminescence (PL) intensity of AAMs increases by a factor of 1/3. The effect of etch-treatment upon the intensity and peak position of photoluminescence (PL) spectra was investigated. It was found that the intensity of the photoluminescence ...
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Effects of heat treatment on optical absorption properties of Ni–P/AAO nano-array composite structureApplied Physics A (IF 2.983) Pub Date : 2009-06-03 ,DOI:10.1007/s00339-009-5289-9Yi-Fan Liu, Feng-Hua Wang, Dong-Lai Guo, Sheng-You Huang, Jian-Ping Sang, Xian-Wu ZouNi–P/AAO nano-array composite structure assemblies with Ni and P grown in the pores of anodic aluminum oxide (AAO) membranes were prepared by electroless deposition. The results of SEM, TEM and SAED show that as-deposited Ni–P nanowires have an amorphous structure and a few nanocrystallites form after annealing. The optical absorption spectra reveal that, as the annealing temperature increases, the ...
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Structure properties and synchronizability of cobweb-like networksPhysica A: Statistical Mechanics and its Applications (IF 3.778) Pub Date : 2008-11-01 ,DOI:10.1016/j.physa.2008.08.030Xiao-Long Zhu,Jian-Ping Sang,Li-Long Wang,Sheng-You Huang,Xian-Wu ZouThe cobweb-like network was constructed, and its structure properties and synchronizability were studied by numerical simulation and probability theory. For cobweb-like networks, the behaviors of structure properties with the adding probability are similar to those for the small-world network. However, the properties of cobweb-like networks also distinctly depend on the spoke–ring ratio r. With increasing ...
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Thin-layer electrodeposition of Zn in the agar gel mediumPhysica A: Statistical Mechanics and its Applications (IF 3.778) Pub Date : 2008-07-01 ,DOI:10.1016/j.physa.2008.02.074Ya-Fang Tu,Xiao-Hui Chao,Jian-Ping Sang,Sheng-You Huang,Xian-Wu ZouThe preparation of Zn deposits has been performed by thin-layer electrodeposition in acidic zinc sulphate solution with and without agar, respectively. The morphological and structural characteristics of the deposits have been investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The study shows that the presence of agar has a significant influence on the morphology of the ...
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Alternating morphology transitions in crystallization of NH4Cl on agar plates.Physical Review E (IF 2.707) Pub Date : 2008-06-04 ,DOI:10.1103/physreve.77.041601Ya-Fang Tu,Rong-Bin Wei,Jian-Ping Sang,Sheng-You Huang,Xian-Wu ZouTwo types of alternating morphology transitions have been observed in crystallization of NH4Cl on agar plates. One is the alternating morphology transitions between dense branching morphology and sparse branching morphology, and the other is the alternating morphology transitions between dense branching morphology and zigzag branching morphology. The appearance of them is found to depend on the mass ...
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Microstructural study of MBE-grown ZnO film on GaN/sapphire (0001) substrateOpen Physics (IF 1.361) Pub Date : 2008-03-18 ,DOI:10.2478/s11534-008-0032-2Hua Li,Jianping Sang,Chang Liu,Hongbing Lu,Juncheng CaoSingle crystalline ZnO film is grown on GaN/sapphire (0001) substrate by molecular beam epitaxy. Ga2O3 is introduced into the ZnO/GaN heterostructure intentionally by oxygen-plasma pre-exposure on the GaN surface prior to ZnO growth. The crystalline orientation and interfacial microstructure are characterized by X-ray diffraction and transmission electron microscopy. X-ray diffraction analysis shows ...
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Homogeneity of Load Distribution Plays a Key Role in Global Synchronizability of Complex NetworksJournal of the Physical Society of Japan (IF 1.933) Pub Date : 2008-01-15 ,DOI:10.1143/jpsj.77.014001Xiao-Long Zhu, Xian-Wu Zou, Zhi-Gang Shao, Sheng-You Huang, Jian-Ping SangMany structure parameters have been suggested to predict the synchronizability of complex networks. They were qualitatively suitable for certain networks but failed for others. Based on the coupled oscillator model, we find that the homogeneity of load distribution determines the synchronizability of complex networks, and the standard deviation of edge betweenness centrality is coincident with synchronizability ...
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Microstructural study of MBE-grown ZnO film on GaN/sapphire (0001) substrateOpen Physics (IF 1.361) Pub Date : 2008-01-01 ,DOI:10.2478/s11534-008-0032-2Hua Li, Jianping Sang, Chang Liu, Hongbing Lu, Juncheng CaoAbstractSingle crystalline ZnO film is grown on GaN/sapphire (0001) substrate by molecular beam epitaxy. Ga2O3 is introduced into the ZnO/GaN heterostructure intentionally by oxygen-plasma pre-exposure on the GaN surface prior to ZnO growth. The crystalline orientation and interfacial microstructure are characterized by X-ray diffraction and transmission electron microscopy. X-ray diffraction analysis ...
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Structural class tendency of polypeptide: A new conception in predicting protein structural classPhysica A: Statistical Mechanics and its Applications (IF 3.778) Pub Date : 2007-12-01 ,DOI:10.1016/j.physa.2007.07.061Tao Yu,Zhi-Bo Sun,Jian-Ping Sang,Sheng-You Huang,Xian-Wu ZouPrediction of protein domain structural classes is an important topic in protein science. In this paper, we proposed a new conception: structural class tendency of polypeptides (SCTP), which is based on the fact that a given amino acid fragment tends to be presented in certain type of proteins. The SCTP is obtained from an available training data set PDB40-B. When using the SCTP to predict protein ...
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Fabrication of a regular tripod Ni–P nanorod array and an AAO template with regular branched nanopores using a current-controlled branching methodNanotechnology (IF 3.953) Pub Date : 2007-09-17 ,DOI:10.1088/0957-4484/18/40/405304Donglai Guo, Lixia Fan, Jianping Sang, Yifan Liu, Shengyou Huang, Xianwu ZouWe present a current-controlled branching method for the fabrication of anodic aluminum oxide (AAO) templates with a triply-branched nanopore structure. By controlling the current density in the branching process, a regular triply-branched nanopore array structure was obtained in the AAO template conveniently and precisely. Based on this template, a regular tripod Ni–P amorphous nanorod array was fabricated ...
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Statistical analysis and Monte Carlo simulation of growing self-avoiding walks on percolationPhysics Letters A (IF 2.707) Pub Date : 2005-09-01 ,DOI:10.1016/j.physleta.2005.06.098Yu-Xia Zhang, Jian-Ping Sang, Xian-Wu Zou, Zhun-Zhi JinThe two-dimensional growing self-avoiding walk on percolation was investigated by statistical analysis and Monte Carlo simulation. We obtained the expression of the mean square displacement and effective exponent as functions of time and percolation probability by statistical analysis and made a comparison with simulations. We got a reduced time to scale the motion of walkers in growing self-avoiding ...
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Blackmail propagation on small-world networksPhysica A: Statistical Mechanics and its Applications (IF 3.778) Pub Date : 2005-06-01 ,DOI:10.1016/j.physa.2004.11.063Zhi-Gang Shao,Jian-Ping Sang,Xian-Wu Zou,Zhi-Jie Tan,Zhun-Zhi JinThe dynamics of the blackmail propagation model based on small-world networks is investigated. It is found that for a given transmitting probability λ the dynamical behavior of blackmail propagation transits from linear growth type to logistical growth one with the network randomness p increases. The transition takes place at the critical network randomness pc=1/N, where N is the total number of nodes ...
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