Being the method of producing the ni molecular layer of the parents crocking nature child, making with step and supply the hydrophilic body step and the said hydration backing and the said hydrophilic body contact which supply the hydration backing, the method of including with the step which forms the ni molecular layer of the parents crocking nature child. Applications of ni molecular layer, and its ni molecular layer which are produced by the method of this invention.両親媒性分子のニ分子層を製造する方法であって、水和支持体を供給するステップと、親水体とを供給するステップと、該水和支持体と該親水体とを接触させて両親媒性分子のニ分子層を形成するステップとを含む方法。本発明の方法によって製造されたニ分子層、及びそのニ分子層の使用法。