PROBLEM TO BE SOLVED: To provide a container capable of stably preserving nanoparticle dispersion which penetrates quickly into a biological membrane due to a high chemical potential.SOLUTION: The present invention relates to the storage container with nanoparticle dispersion, accommodating nanoparticle dispersion and stably storing the nanoparticle dispersion, wherein at least a surface on the side for storing the nanoparticle dispersion is made of a material which is a triboelectric series of the same sign as the zeta potential of the nanoparticle.SELECTED DRAWING: None【課題】高い化学的ポテンシャルより迅速に生体膜に浸透するナノ粒子分散液を安定に保存できる容器を提供すること。【解決手段】ナノ粒子分散液を収容しており、かつ前記ナノ粒子分散液を安定に保存する容器であって、少なくとも前記ナノ粒子分散液を保存する側の表面が前記ナノ粒子のゼータ電位と同じ符号の摩擦帯電列である材質で構成されていることを特徴とするナノ粒子分散液入り保存容器。【選択図】なし
