JPS62291931A - Monomolecular film accumulator - Google Patents

Abstract

PURPOSE:To rapidly remove an impurity mixed in pure water in a tank and unnecessary grown film molecules by providing a first water tank having a water supply port under water level for developing film forming molecules and a second water tank which surrounds the first tank. CONSTITUTION:A monomolecule film accumulator has an outer tank 6 outside a water tank 1, and avoids the contact with the water level by a barrier 3 at the time of cleaning to move upward. Pure water is supplied from the port 9 in the bottom of the tank 1. In this case, water is steadily supplied to prevent the pure water in the tank 1 from convecting. The pure water 11 is steadily overflowed from the tank 1, and water level, mixed impurity 7, film forming molecules 5, 6 which become unnecessary are simultaneously overflowed to clean the tank. An exhaust port 12 is formed at the bottom of an outer tank 8 to exhaust pure water which contains contaminants. According to this structure, molecular orientation is high to uniformly form a monomolecule accumulation film in high efficiency.

Description

【発明の詳細な説明】 ３、発明の詳細な説明 産業上の利用分野 本発明は単分子膜累積法（ラングミュアプロジェット法
：ＬＢ法）を用いる単分子膜累積装置に関するものであ
る。Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a monolayer accumulation device using a monolayer accumulation method (Langmuir-Prodgett method: LB method).

従来の技術 最近、「分子エレクトロニクス」とか「バイオチップ」
などの言葉が聞かれるようになった。これには、在来の
電子技術のなかで、有機材料の単なる利用からさらに進
めて遺伝子操作などの高度の生物工学的手法を活用した
り、生体細胞を使って有機ＩＣチップをつくろうという
提案がなされている背景がある。これらは究極として従
来のエレクトロニクスを越える新技術をめざしその骨子
は個々の分子や少数の分子の集合に電子素子の機能を持
たせることにある。タンパク質をはじめとする生体物質
からなる厚さ１００人程鹿の有機物からなる薄い膜（有
機薄膜）が、その素子の基本構造と考えられている。こ
のような素子をつくるには１００人程鹿の分子レベルの
薄膜を超微細構造を維持したままで形成する技術の確立
が要求されている。そのための有力な薄膜形成法として
単分子累積法９例えばラングミュア・プロジェット法（
ＬＢ法）が注目されている。Conventional technology Recently, "molecular electronics" and "biochip"
Words like these have started to be heard. This includes proposals to go beyond the simple use of organic materials to utilize advanced bioengineering techniques such as genetic manipulation, and to create organic IC chips using living cells. There is a background to this. The ultimate goal of these technologies is to create new technologies that go beyond conventional electronics, and the gist of these technologies is to provide the functionality of electronic devices to individual molecules or collections of small numbers of molecules. The basic structure of the device is thought to be a thin film (organic thin film) made of organic matter, about 100 times thick, made of biological materials such as proteins. To create such a device, it is necessary to establish a technology to form a thin film at the molecular level of about 100 people while maintaining its ultrafine structure. An effective method for forming thin films for this purpose is the single-molecule accumulation method9, such as the Langmuir-Prodgett method (
LB method) is attracting attention.

従来の単分子累積法を第２図に示す。The conventional single molecule accumulation method is shown in FIG.

単分子膜累積法において、均一に成膜するためには不純
物が混入しないように清浄な水槽１、清浄な純水２が使
用される。さらに水面を清浄にするためにアスピレータ
−（吸引ポンプ）４で水面上のゴミ６．７を吸引、除去
する。このように清浄にする作業の後に１分子中に親水
基と疎水基をもつ有機分子６をクロロホルムなどの揮発
性の非水系溶媒に溶かし、水槽１の内側に設置されだバ
リアー３に囲まれた水面に滴下する。溶媒が揮発した後
、バリアー３に囲まれた面積を縮めることによりバリア
ー３内の単分子に表面圧をかけ固体＠５にする。バリア
ー３によって常に一定で適当な表面圧をかけ固体膜５に
保った状態で清浄な基板（図示せず）を、固体膜を垂直
に横切る方向に上下させることで単分子を基板に累積す
ることができる。In the monomolecular film accumulation method, in order to form a uniform film, a clean water tank 1 and clean pure water 2 are used to prevent contamination with impurities. Furthermore, in order to clean the water surface, an aspirator (suction pump) 4 sucks and removes dirt 6.7 on the water surface. After cleaning in this way, the organic molecule 6, which has a hydrophilic group and a hydrophobic group in each molecule, was dissolved in a volatile non-aqueous solvent such as chloroform and placed inside the water tank 1, surrounded by a barrier 3. dripping onto the water surface. After the solvent evaporates, the area surrounded by the barrier 3 is reduced to apply surface pressure to the single molecules within the barrier 3, making them solid @5. Single molecules are accumulated on the substrate by moving a clean substrate (not shown) up and down in a direction perpendicularly across the solid film while maintaining a constant and appropriate surface pressure on the solid film 5 by the barrier 3. Can be done.

単分子膜にはさまざまな表面活性物質が成膜分子になり
うる。膜を構成する単分子層がすべて同一なホモ膜ばか
りでなく、水面上の単分子層を適宜取り換えることによ
ってＡＡＢＢ・・・・・・、　Ａ　ＢＡＢ・・・・・・
のようなヘテロ膜を作ることもできる。またさらに、違
う成膜分子を何種か混合して多成分系単分子層を作り混
合膜をつくることもできる。Various surface-active substances can serve as film-forming molecules for monomolecular films. Not only a homogeneous membrane in which all the monomolecular layers constituting the membrane are the same, but also AABB..., A BAB...... by appropriately replacing the monomolecular layer on the water surface.
It is also possible to create a hetero-layer like this. Furthermore, it is also possible to create a mixed film by mixing several types of different film-forming molecules to form a multi-component monomolecular layer.

発明が解決しようとする問題点 このように単分子膜累積法は分子単位で取り扱っている
ため不純物の混入には細心の注意を要する。不純物が水
槽的純水に混入することにより、均一に成膜できなかっ
たり、膜材料が会合しやすい等の問題がある。またへテ
ロ膜を作りたい場合にも前層の成膜分子が水面に残留し
ていてはならないという厳しい条件がある。そのだめ現
在はアスピレータ−による吸引除去を行っている。例え
ば従来は第２図、第３図に示す水槽１に入れた純水２の
水面に混入している不純物７、不必要となった成膜分子
６はアスピレータ−４によって吸引除去している。しか
しながら完全に清浄々状態にするには時間がかかる、熟
練を要する。またアスピレータ−〇吸引により不純物ば
かりでなく水槽的純水２も同時に吸い取ってしまうため
純水の減少が早く新たにＰＨ調整した水溶液を補充しな
ければならないなどの問題があった。Problems to be Solved by the Invention As described above, since the monomolecular film accumulation method deals with each molecule, great care must be taken to avoid contamination with impurities. If impurities are mixed into the aquarium-like pure water, there are problems such as the inability to form a uniform film and the tendency for film materials to aggregate. Furthermore, when it is desired to form a heterofilm, there is a strict condition that the molecules of the previous layer must not remain on the water surface. Therefore, we are currently using an aspirator to remove it by suction. For example, conventionally, impurities 7 mixed on the surface of pure water 2 in a water tank 1 shown in FIGS. 2 and 3 and unnecessary film forming molecules 6 are removed by suction by an aspirator 4. However, it takes time and skill to make it completely clean. Furthermore, since not only impurities but also aquarium-like pure water 2 are sucked out by the aspirator suction, there is a problem in that the pure water decreases quickly and a new pH-adjusted aqueous solution has to be replenished.

問題点を解決するだめの手段 本発明は、成膜用分子展開用の水面より下に給水口を設
けた第１の水槽と、この第１の水槽を包囲するように第
２の水槽を配した単分子膜累積装置を用いるものである
。Means for Solving the Problems The present invention provides a first water tank having a water supply port below the water surface for deploying molecules for film formation, and a second water tank arranged to surround this first water tank. This method uses a monolayer accumulation device.

作　　用 本発明を用いれば、水槽底部に設けた数ケの給水口より
水槽的純水に対流が起らない程度の水圧で純水を水槽内
に流し込みオーバーフローさせることにより、不純物、
不必要となっだ成膜分子をあふれ出た純水といっしょに
、外周の槽内へ流し出すことができる。本発明により、
純水４面、純水中に混入した不純物、不必要な成膜分子
を迅速かつ容易に取り除くことができる。Function: By using the present invention, pure water is poured into the aquarium from several water inlets provided at the bottom of the aquarium at a water pressure that does not cause convection in the aquarium-like pure water and overflows, thereby removing impurities,
Unnecessary film-forming molecules can be flushed out into the outer tank together with overflowing pure water. According to the present invention,
It is possible to quickly and easily remove pure water, impurities mixed in the pure water, and unnecessary film-forming molecules.

実施例 以下、本発明の単分子膜累積装置の実施例を第１図を用
いて説明する。EXAMPLE Hereinafter, an example of the monomolecular film accumulation device of the present invention will be described with reference to FIG.

この単分子膜累積装置は水槽１の他にその外側周辺に外
４８を有している。すなわ、ち該装置の水槽は２槽式に
なっている。ここで槽の洗浄時にバリアー３は水面に接
融しないように上部に移動させるか水面下に完全に浸漬
させるように下げる。In addition to the water tank 1, this monomolecular film accumulator has a shell 48 around its outer periphery. In other words, the device has two water tanks. When cleaning the tank, the barrier 3 is either moved to the top so that it does not melt to the water surface, or lowered so that it is completely immersed below the water surface.

あるいは反対に水槽を上昇又は下降させてバリアー３の
影害を受けないようにできる構造にしておく。また水槽
１の底部に設けた給水口９より純水を給水できる。給水
時、特に気をつけなければならないことは純水を流し込
むことで水槽的純水に対流が起こちないように静かに給
水しなければならない。このように底部から静かに給水
することで純水１１は水槽１より静かに氷表面からあふ
れ出し、その際同時に純水表面、純水中に混入していた
不純物７、不必要となった成膜分子５，６も流れ出て、
槽の洗浄ができる構造とする。外側水槽８の底部には排
水口１２が設けられておりあふれ出た汚れを含む純水１
１はこの排水口によシ排出される。Alternatively, on the contrary, the structure is such that the aquarium can be raised or lowered to avoid being affected by the barrier 3. Further, pure water can be supplied from a water supply port 9 provided at the bottom of the water tank 1. When supplying water, special care must be taken when pouring pure water into the tank to avoid convection in the pure water. By supplying water quietly from the bottom in this way, the pure water 11 quietly overflows from the ice surface from the water tank 1, and at the same time, the pure water surface, impurities 7 that were mixed in the pure water, and unnecessary products are removed. Membrane molecules 5 and 6 also flow out,
The structure shall allow for cleaning of the tank. A drain port 12 is provided at the bottom of the outer water tank 8, and pure water 1 containing dirt spills out.
1 is discharged through this drain port.

なお、この時純水給水口は必ずしも底面にある必要はな
く水面より下にあればすむ。In addition, at this time, the pure water supply port does not necessarily have to be on the bottom, and it is sufficient if it is below the water surface.

発明の効果 以上のように、本発明によればＬＢ型単分子膜累積装置
においてその水槽に入れた純水中に混入した不純物、不
必要な成膜分子を完全に迅速かつ容易に取り除くことが
できる。また分子配向性が高く均一な単分子累積膜（ホ
モ膜ならびにヘテロ膜）を効率よく製作できる効果があ
る。Effects of the Invention As described above, according to the present invention, it is possible to completely, quickly and easily remove impurities and unnecessary film-forming molecules mixed into the pure water placed in the water tank in the LB type monomolecular film accumulation device. can. It also has the effect of efficiently producing monomolecular cumulative films (homo-films and hetero-films) with high molecular orientation and uniformity.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例における単分子模累積装型の
概略断面図、第２図、第３図は従来の単分子膜累積装置
の概略断面図である。 １・・・・・・水槽、６・・・・・・単分子膜、６・・
・・・・不必要な成膜分子、７・・・・・・不純物、８
・・・・・・外側水槽、９・・・・・・給水口、１ｏ・
・・・・・給水、１１・・・・・・給水した純水の流れ
、１２・・・・・・あふれ出た純水、１３・・・・・・
排出口。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第２
図FIG. 1 is a schematic sectional view of a monomolecular film accumulation device according to an embodiment of the present invention, and FIGS. 2 and 3 are schematic sectional views of a conventional monomolecular film accumulation device. 1...Aquarium, 6...Monolayer, 6...
...Unnecessary film forming molecules, 7...Impurities, 8
...Outer water tank, 9...Water inlet, 1o.
... Water supply, 11 ... Flow of supplied pure water, 12 ... Overflowing pure water, 13 ...
Vent. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

【特許請求の範囲】[Claims] 成膜用分子展開用の水面より下に給水口を設けた第１の
水槽と、前記第１の水槽を抱囲するように第２の槽を有
してなる単分子膜累積装置。A monomolecular film accumulation device comprising a first water tank provided with a water supply port below the water surface for deployment of molecules for film formation, and a second tank surrounding the first water tank.