“…Fine particles composed of metals, semiconductors, and polymers are useful building blocks for fabricating various functional devices, such as electrical, optical, and biological devices. [1][2][3][4][5][6][7][8][9][10] Various methods have been reported for the preparation of particles with size in the submicron to nanometer scales, including the reductive deposition of metal ions in a liquid phase, chemical vapor deposition (CVD), and spray drying. [11][12][13][14] Among them, membrane emulsication has been attracting considerable attention as an effective method for preparing monodisperse particles with controlled sizes.…”