Study on New LB films with Molecular-Janction System

新型LB薄膜分子连接体系的研究

基本信息

批准号：
03402032
负责人：
MORIZUMI Toyosaka
金额：
$ 20.54万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03402032/
关键词：
LB film molecular devices gas sensor

项目摘要

The purpose of the present study is to establish the "new LB method" by which a patterned region of functional molecules can be implemented in a lipid monolayr, to realize three-dimensional integrated molecular system by combining the pattterned monolayrs, and to finally apply the system to a electronic device.The three "new LB methods" have been developed ; "partial-casting", "droplet-surface casting" and "adsorption LB" methods. In the partially-casting method, a outer force is applied locally onto a monolayr on water subphase in order to open a small hole, and functional molecules are injected into the hole. The outer force is a physical one such as an electric field, forces in a meniscus region or by a frame, etc. The filament of a conduting polymer LB film can be formed by using the meniscus region, which will be mentioned below. The most realistic one among partial-casting methods is the droplet-surface casting method, in which a small water droplet (several tens of mu m to 1 mm … More in diameter) is pushed out of a tapered glass pipette and functional molecules are cast on the droplet. If a substrate surface is attached onto the droplet, the spread molecules are transferred and a patterned mlecular film can be deposited on it. In the adsorption LB method, a self-organizing property due to the chemical structures and the polarity of dye molecules and an controling electric field are used for preparing molucular junctions or aggregation system in LB films..Several applications have been found by the new LB method. One of the most prominent ones is the deposition of plural lipid molecular films by the droplet-surface casting on integrated SAW devices for realization of an highly sensitive (several ppm range) SAW multi-channel gas or odor sensors.The filament formation of conducting polymer in a meniscus region can be done by electro polymerization of pyrrole on to an ITO coated substrate after spreading a lipid material and pyrrole on water surface. The technique might be used for wiring to molecular devices.Furthermore, the purchased scaning-probe microscope enabled us to observe the molecular images, surface morphology and surface-potential images of the deposited molecular films. Less

本研究的目的是建立“新LB方法”，在脂质单层中实现功能分子的图案化区域，通过组合图案化单层来实现三维集成分子系统，并最终应用已开发出三种“新LB方法”：“部分铸造”、“液滴表面铸造”和“吸附LB”方法。在部分铸造方法中，局部施加外力。一个在水相上形成单分子层，以打开一个小孔，并将功能分子注入该孔中，外力是物理力，例如电场、弯月面区域或框架中的力等。利用弯液面区域可以形成导电聚合物LB膜，下面将提到部分流延法中最现实的一种是液滴表面流延法，其中小水滴(几十μm到10μm)。直径为 1 毫米……更多）从锥形玻璃移液管中推出，功能性分子被投射到液滴上。在吸附LB方法中，利用染料分子的化学结构和极性所产生的自组织特性以及控制电场来制备LB膜中的分子连接或聚集系统。最突出的方法之一是通过在集成 SAW 设备上的液滴表面铸造沉积多个脂质分子薄膜，以实现高灵敏度（几 ppm 范围）SAW 多通道气体或气味传感器。在水表面铺展脂质材料和吡咯后，可以通过将吡咯电聚合到涂覆有ITO的基板上来在弯月面区域中形成导电聚合物的细丝。该技术可用于连接到分子。此外，购买的扫描探针显微镜使我们能够观察沉积分子薄膜的分子图像、表面形貌和表面电位图像。

项目成果

期刊论文数量（38）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Toyosaka Moriizumi: "MULTI-CHANNEL SAW CHEMICAL SENSOR USING 90MHz SAW RESONATOR AND MOLECULAR FILMS DEPOSITED BY DROPLET-SURFACE CASTING METHOD" Mol.Cryst.Liq.Crystに掲載予定.

Toyosaka Moriizumi：“MULTI-CHANNEL SAW CHEMICAL SENSOR USING 90MHz SAW RESONATOR AND MOLECULAR FILMS DEPOSITED BY DROPLET-SURFACE CASTING METHOD” 计划在 Mol.Cryst.Liq.Cryst 上发表。