|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A study of specific interaction of the transcription factor and the DNA element by atomic force microscopy显示文摘Atomic force microscopy (AFM) was employed to quantitatively detect the interaction between a transcription factor, ZmDREBIA, and its target DNA sequence (DRE).The specificity of the interaction was revealed by comparing the binding probability of ZmDREBIA to DRE element with core sequence ACCGAC and to the ERE element with core sequence AGCCGCC. Moreover, the single-molecular unbinding force between ZmDREBIA and DRE element was determined using Poisson statistical method to be 99±9 pN.The results indicated that AFM could serve as a sensitive and reliable technique to probe the interaction properties of the transcription factor and DNA element at single-molecular level, thus indicating that AFM is advantageous over the traditional methods, such as the electrophoretic mobility shift assay, regarding to the functional analysis of transcription factors. | QINFeng JIANGYaxin MAXinyong CHENFeng FANGXiaohong BAIChunli LIYiqin | 2004 | Chinese Science Bulletin2004，49，13： | 4 |
| 2 | Self-assembled structure of alkyloxy substituted benzoic acid methyl ester on HOPG:An STM study显示文摘Self-assembled structures of 3,4,5-tris-dodecy- loxy benzoic acid methyl ester (E12), 3,4,5-tris-tetradecy- loxy-benzoic acid methyl ester (E14) and their mixture (E12/E14) have been studied on HOPG by scanning tunnel- ing microscopy (STM). Dimer-like patterns induced by di- pole-dipole interaction are observed in E12 and E14 monolayers. The molecules form close-packed rows and in- terdigitate with the alkyl chains in adjacent molecules. The structural differences are proposed to be from the different length of substituted alkyl chains. Owing to similar adsorp- tion energy, phase separation is observed in the E12 and E14 mixed adlayer with different domains. | YUANQunhui LUJun WANLijun BAIChunli | 2004 | Chinese Science Bulletin2004，49，24： | 1 |
| 3 | Evaluation for cell affinity of the composite material containing carbon nanotubes显示文摘The composite material of poly-(L-lactide) (PLLA) and carbon nanotubes (CNTs) were prepared. Itssurface morphologies and property were worked out by us-ing atomic force microscopy (AFM) and contact angle meas-urement. Moreover, the prime cytocompatibility was used to investigate the biocompatibility of the composite materialcontaining CNTs and the effects of CNTs on one aspect of cell function, cell affinity. The results obtained indicate that thecomposite material of PLLA and CNTs possesses good bio-compatibility for both the 3T3 fibroblasts and Oct-1 os-teoblast-like cells. The addition of CNTs will greatly affectcell affinity of the material, which may be disadvantage for the cell adhesion. | KANGShizhao WANYuqing YANHuijuan BEIJianzhong WANGChen WANGShenguo WANGChunru WANLijun BAIChunli | 2004 | Chinese Science Bulletin2004，49，20： | 1 |
| 4 | Direct observation of monomer film structure of bacteriochlorophyll c显示文摘The adsorption and assembling of bacterio-chlorophyll c (BChl c) on a highly oriented pyrolytic graphite (HOPG) surface have been investigated by the scanning tunneling microscopy (STM). BChl c molecules are found to self-organize a well-defined adlayer on HOPG surface with a monomeric structure different from the dimer association seen on adlayers of Chls a, c and BChlide c, d. A structural model is proposed for the adlayer. | JIANGYaxin XuQingmin WANLijun WANGChen FANGXiaohong BAIChunli WANGZhengyu NozawaTsunenori | 2003 | Chinese Science Bulletin2003，48，21： | 0 |
| 5 | 2D self-assembling of 4, 5- didodecylthiolphthalonitrile on graphite surface显示文摘An important precursor 4,5-didodecylthiolph- thalonitrile (DCP) for synthesis of phthalocyanines (Pcs) and subphthalocyanines (SubPcs) was synthesized and the as-sembling structure of this molecule on the basal plane of highly oriented pyrolytic graphite (HOPG) surface was characterized using the scanning tunneling microscopy (STM) in ambient conditions. In high-resolution images of the molecules, we found that the arrangement of the cyano groups forms a head-to-head configuration to keep the stability of the entire system. The mismatch of the DCP molecules with the substrate lattice has also been observed in the experiment. | XUShandong LEIShengbin ZENGQingdao WANGChen WANLijun BAIChunli | 2003 | Chinese Science Bulletin2003，48，8： | 0 |
| 6 | Controlled fabrication of fullerene derivative one-dimensional nanostructures via electrophoretic deposition of its clusters显示文摘Well-defined and controllable one-dimensional (1D) nanostructures of fullerene derivative have been pre- pared by an electrophoretic template synthesis method. The clusters of fullerene derivative formed in mixed solvents are introduced into the channels of porous alumina templates through a dc electric field. Four types of 1D nanostructures (solid nanowires, solid-wall nanotubes, porous nanowires and porous-wall nanotubes) have been obtained by changing the deposition parameters. This approach opens a new avenue to assemble fullerene derivatives, endohedral fullerenes, as well as other functional organic compounds, which can form clusters in 1D nanostructure arrays for applications in chemical sensors, light energy conversion devices and nano- scale electronic and optoelectronic devices. | GUOYuguo WANLijun WANGChunru BAIChunli GANLiangbing CHENDongmin | 2004 | Chinese Science Bulletin2004，49，19： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员