DEVELOPMENT OF MOLECULAR ACTUATOR BASED ON CONFORMATIONAL TRANSFORMATION

基于构象变换的分子驱动器的开发

• 批准号: 07651113
• 负责人: OISHI Yushi
• 金额: $ 1.28万
• 依托单位: SAGA University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07651113/
• 关键词: MONOLAYER; POLYOXYMETHYLENE; DIPOLE MOMENT; CONFORMATAION; ACTUATOR; AFM

Recently, development of molecular mashine, acting in a scale of molecular assembly, have started based on usage of probe microsocpy. In this project, we tried to orient uniaxially dipole moments in a polyoxymethylene chain by applying electric field in order to develop a novel actuator (molecular piston).A benzene solution of polyoxymethylene was spread on water surface to prepare the polyoxymethylene monolayr. The monolayr was prepared by changing the concentration of spread solution, the surface pressure, the compression speed and the subphase temperature. The monolayr was transfeercl onto mica substrate to observe the morphology by an atomic force microscope. The morphologically homogeneous polyoxymethylene monolayr was prepared by the compression speed of 0.8 mm/s the surface pressure of 20 mN/m and at the subphase temperature of 293 K by using the solution with the concentration of 10^3 M.An isolated polyoxymethylene chain was obtained by scanning at stronger applied force. The expansion and contraction behaviors of polyoxymethylene chain will be investigated by applying electric field between cantilever and the substrate.

最近，基于探针显微镜的使用，已经开始开发在分子组装规模中发挥作用的分子机器。在这个项目中，我们尝试通过施加电场来定向聚甲醛链中的单轴偶极矩，以开发一种新型致动器（分子活塞）。将聚甲醛的苯溶液铺在水面上以制备聚甲醛单层。通过改变铺展溶液的浓度、表面压力、压缩速度和面下相温度来制备单层。将单层转移到云母基底上，通过原子力显微镜观察形态。采用浓度为10^3 M的溶液，以0.8 mm/s的压缩速度、20 mN/m的表面压力、293 K的面相温度制备了形态均质的聚甲醛单分子层。通过施加更强的力进行扫描获得。通过在悬臂梁和基底之间施加电场来研究聚甲醛链的膨胀和收缩行为。

项目成果

Yushi Oishi et al.: "Construction of Two-dimensional Single Crystal of Fatty Acid by Two-step Cooling Crystallization Method" Chemistry Letters. (in press).

Yushi Oishi等人：“通过两步冷却结晶法构建脂肪酸二维单晶”化学快报。

Yushi Oishi et al.: "Atomic Force Microscopic Observation of Random Molecular Arrangement in Dialkyl Guanidinium Monolayer" Chemistry Letters. 857-858 (1996)

Yushi Oishi 等人：“二烷基胍单层中分子随机排列的原子力显微镜观察”化学快报。

Y.Oishi,et al.: "Molecular Aggregation State-photo polymerization Behavior Relationship of Lithium 10,12-Heptacosediynoate Monolayer" Langmuir. 11. 3536-3541 (1995)

Y.Oishi 等人：“10,12-庚糖二炔酸锂单层的分子聚集态-光聚合行为关系”Langmuir。

Yushi Oishi et al.: "Morphology and Molecular Orientation and Structure of Langmuir-Blodgert Films of Chlorophyll a Studied by Atomic Fone Microscopy and UV-VIS and IR spectroscopies" Journal of Chemical Society,Faraday Transactions. (in press).

Yushi Oishi 等人：“通过原子丰度显微镜、紫外-可见光和红外光谱研究的叶绿素 a 的 Langmuir-Blodgert 薄膜的形态、分子取向和结构”化学学会杂志，法拉第会刊。

Y.Oishi,et al.: "Direct Observation of Edge Dislocation in Lignoceric Acid Monolayer Based on Atomic Force Microscopy" Chemistry Letters. 241-242 (1995)

Y.Oishi 等人：“基于原子力显微镜直接观察木蜡酸单层中的边缘位错”化学快报。