偶氮苯树枝状分子通过中心羧基与金或者石英基体表面的氨基进行酰胺化反应得到树枝状分子单分子层修饰的表面,利用红外反射-吸收光谱(IRRAS)、UV-Vis和Raman光谱法研究了单分子层的结构和性能,利用椭偏谱法来测量四代树枝状(G4)单分子层在不同异构化形态的分子层厚度,其中反式构象的单分子层厚度为(2.38±0.09) nm,顺式构象厚度为(1.88±0.08) nm.利用表面等离子体共振(SPR)研究不同形态下G-4单层与不同等电点的蛋白质之间的相互作用关系,结果表明,G4单层为负电位表面,能够吸附正电位的蛋白质,而且当树枝状单分子层形态从反式变为顺式时,表面电位变为更负,能吸附更多正电位的蛋白质.
参考文献
| [1] | H(a)tckel M,Kador L,Kropp D,et al.Polymer Blends with Azobenzene-containing Block Copolymers as Stable Rewritable Volume Holographic Media[J].Adv Mater,2007,19:227-231. |
| [2] | Yoon Hyun C,Hak-Sung Kim.Multilayered Assembly of Dendrimers with Enzymes on Gold:Thickness-Controlled Biosensing Interface[J].Anal Chem,2000,72:922-926. |
| [3] | Tully David C,Trimble Alexander R,Frěchet Jean M J.Synthesis and Preparation of lonically Bound Dendrimer Monolayers and Application toward Scanning Probe Lithography[J].Chem Mater,1999,11:2892-2898. |
| [4] | Ichimura K,Oh S K,Nakagawa M.Light-driven Motion of Liquids on a Photoresponsive Surface[J].Science,2000,288:1624-1626. |
| [5] | Edahiro J,Sumaru K,Tada Y,et al. In Situ Control of Cell Adhesion Using Photoresponsive Culture Surface[J].Biomacromolecules,2005,6:970-974. |
| [6] | Dugave Christophe,Demange Luc. Cis-Trans Isomerization of Organic Molecules and Biomolecules:Implications and Applications[J].Chem Rev,2003,103:2475-2532. |
| [7] | Li S,McGrath Dominic V.Effect of Macromolecular Isomerism on the Photomodulation of Dendrimer Properties[J].J Am Chem Soc,2000,122:6795-6796. |
| [8] | Shen X Q,Liu H W,Li Y S,et al.Click-Together Azobenzene Dendrons:Synthesis and Characterization[J].Macromolecules,2008,41:2421-2425. |
| [9] | Porter Marc D,Bright Thomas B,Allara David L,et al.Spontaneously Organized Molecular Assemblies.4.Structural Characterization of n-Alkyl Thiol Monolayers on Gold by Optical Ellipsometry,Infrared Spectroscopy,and Electrochemistry[J].J Am Chem Soc,1987,109:3559-3568. |
| [10] | Finklea H O,Avery S,Lynch M,et al.Blocking Oriented Monolayers of Alkyl Mercaptans on Gold Electrodes[J].Langmuir,1987,3:409-413. |
| [11] | Nuzzo Ralph G,Zegarski Bernard R,Dubois Lawrence H.Fundamental Studies of the Chemisorption of Organosulfur Compounds on Gold(111):Implications for Molecular Self-assembly on Gold Surfaces[J].J Am Chem Soc,1987,109:733-740. |
| [12] | Tsukruk Vladimir V,Luzinov Igor,Julthongpiput Daungrut. Sticky Molecular Surfaces:Epoxysilane Self-Assembled Monolayers[J].Langrnuir,1999,15:3029-3032. |
| [13] | Yim Kang Sub,Fuller Gerald G.Influence of Phase Transition and Photoisomerization on Interfacia1 Rheology[J].Phys Rev E,2003,67:041601 (1-10). |
| [14] | Shen T,Li G,Zhu X Y,et al.Submolecular Observation of Photosensitive Macrocycles and Their Isomerization Effects on Host-Guest Network[J].J Am Chem Soc,2009,131:6174-6180. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%