In this presentation, I want to discuss about the fluid mechanical researches for Interdisciplinary applications. The topic is synthesis of monodispersed microparticles. Not only the complex particles with various shapes such as bullets, cylinders, discs, hearts, hexagons, and Janus particles but microspheres can be synthesized by the surface-tension-induced flow and Laplace pressure induced flows in micromolds. Along with the various shapes of the particles, a novel synthesis method shows the flexibility to synthesize particles using various reaction schemes, such as photopolymerization, sol-gel reactions, and colloidal assembly. This method can produce highly monodispersed particles, without the need to use complicated control. It allows high flexibility in choosing materials and size control.