科研成果 by Year: 2003

2003

Tu J, Hu A-ping, Cao C-M, Xia Q. Naloxone for attenuation of interleukin 2 induced myocardial depression in rat hearts. Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences [Internet]. 2003;(3):192-196. 访问链接

Mongeot FBD, Zhu W, Molle A, Buzio R, Boragno C, Valbusa U, Wang EG, Zhang Z. Nanocrystal formation and faceting instability in Al(110) Homoepitaxy: True upward adatom diffusion at step edges and island corners. Physical Review Letters. 2003;(1):016102/1-016102/4.

Lou X-L, Yu X, Chen X-K, Duan K-L, He L-M, Qu A-L, Xu T, Zhou Z. Na⁺ channel inactivation: A comparative study between pancreatic islet β-cells and adrenal chromaffin cells in rat. Journal of Physiology [Internet]. 2003;(1):191-202. 访问链接

Yao Y, Mireles HC, Liu J, Niu Q, Erskine JL. Negative differential magnetization in ultrathin Fe on vicinal W(100). Physical Review B - Condensed Matter and Materials Physics. 2003;(17):1744091-1744095.

Zhang X, Cao C-M, Wang L-L, Ding Y-M, Xia Q. Negative inotropic effect of meperidine in rat ventricular muscle and the underlying mechanism. Acta Physiologica Sinica [Internet]. 2003;(2):197-200. 访问链接

Liu G, Rao Y. Neuronal migration from the forebrain to the olfactory bulb requires a new attractant persistent in the olfactory bulb. Journal of Neuroscience [Internet]. 2003;(16):6651-6659. 访问链接

Guan H, Zu G, Xie Y, Tang H, Johnson M, Xu X, Kevil C, Xiong W-C, Elmets C, Rao Y, et al. Neuronal Repellent Slit2 Inhibits Dendritic Cell Migration and the Development of Immune Responses. Journal of Immunology [Internet]. 2003;(12):6519-6526. 访问链接

Tan W, Liu S, Guo J, Wang S, Cheng H, Masuoka T. New dynamic model for non-Fickian diffusion of calcium spark in cardiac myocytes. Chinese Science Bulletin. 2003;(23):2564-2567.

Liu J, Wu B, Niu Q. Nonlinear evolution of quantum states in the adiabatic regime. Physical Review Letters. 2003;(17):170404/1-170404/4.

Zhai Y, Li J, Yan Y, Zhang XY, Lu M, Zhai HR, Shi J. Nonuniform demagnetizing field and magnetization in element of patterned NiFe films. Journal of Applied Physics. 2003;(10 2):7598-7600.

Fan C-X, Chen X-K, Zhang C, Wang L-X, Duan K-L, He L-L, Cao Y, Liu S-Y, Zhong M-N, Ulens C, et al. A novel conotoxin from conus betulinus, κ-BtX, unique in cysteine pattern and in function as a specific BK channel modulator. Journal of Biological Chemistry [Internet]. 2003;(15):12624-12633. 访问链接

Nie Y, Ke Y, Wang Z, Yu X, Deng H, Ding M. N-terminal of L protein of vesicular stomatitis virus contains a new signal sequence. Chinese Science Bulletin. 2003;(13):1352-1357.

Zhao D, Moore JS *. Nucleation-elongation: a mechanism for cooperative supramolecular polymerization. Org. Biomol. Chem. [Internet]. 2003;1(20):3471-3491. [Read Online]Abstract

The kinetic and thermodynamic characteristics of polymerizations following a cooperative, nucleation-elongation mechanism are discussed in comparison to those of non-cooperative, isodesmic polymerizations. Nucleation-elongation polymerization is a relatively unexplored avenue of synthetic polymer chemistry and offers some unique and interesting thermodynamic and kinetic attributes not found in the more classical mechanisms of polymer chemistry.

Zhao D, Moore JS *. Nucleation-elongation polymerization under imbalanced stoichiometry. J. Am. Chem. Soc. [Internet]. 2003;125(25):16294-16299. [Read Online]Abstract

As a result of the helical structure of the polymeric product, the folding-driven polymerization of oligo(m-phenyleneethynylene) imines in solution should inherently show nucleation-elongation in chain growth. Here, we present evidence for this behavior based on results of polymerizations conducted under conditions of imbalanced stoichiometry. Because the polymerization proceeds via imine metathesis between a pair of bifunctional monomers of types A-A and B-B, the molar ratio of the polymerizing functional groups can be arbitrarily varied. Alternatively, stoichiometry can be controlled by the addition of a monofunctional oligomer. Similar results were obtained in both cases whereby the molecular weight distribution was significantly different from that expected for classical step-growth polymerizations. At equilibrium, high molecular weight polymers were observed to coexist with the monomer in excess. Thermodynamic equilibrium was established by showing that the same distribution was reached starting either from a monomer mixture or from high polymers to which one monomer was added. These results are in great contrast to the low molecular weight oligomers that were produced when the reaction was conducted by melt condensation of bifunctional aldehyde and amine monomers, a polymerization that apparently proceeds without the nucleation event. An equilibrium model that captures the features of nucleation-elongation under conditions of imbalanced stoichiometry qualitatively supports the monomer-polymer distribution observed experimentally.

Yang CL, Zudov MA, Knuuttila TA, Du RR, Pfeiffer LN, West KW. Observation of Microwave-Induced Zero-Conductance State in Corbino Rings of a Two-Dimensional Electron System. Physical Review Letters. 2003;(9):968031-968034.

Qin G, Kang D, Dong Y, Shen Y, Zhang L, Deng X, Zhang Y, Li S, Chen N, Niu W, et al. Obtaining and analysis of flanking sequences from T-DNA transformants of Arabidopsis. Plant Science. 2003;(5):941-949.

Mao S, Gu H, Qu L, Chen Z. Obtaining transgenic rice resistant to rice fungal blast disease by controlled cell death strategy. Chinese Science Bulletin. 2003;(16):1753-1759.

Wang EG, Guo ZG, Ma J, Zhou MM, Pu YK, Liu S, Zhang GY, Zhong DY. Optical emission spectroscopy study of the influence of nitrogen on carbon nanotube growth. Carbon. 2003;(9):1827-1831.

Zhang J, Chen R, Tang C, Liang J. Origin of scaling behavior of protein packing density: A sequential Monte Carlo study of compact long chain polymers. Journal of Chemical Physics. 2003;(13):6102-6109.

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