エス・ピー・ジーテクノ Company Profile

The world’s only material "SPG (Shirasu Porous Glass)" can be used for emulsification (monodisperse emulsion), bubbling, and special filtration.

SPG stands for S "Shirasu," P "Porous (Pore)," and G "Glass," and it is a type of porous glass that can be designed arbitrarily within a wide range of pore diameters from 0.1 to 50 μm. It is a unique inorganic porous material with a narrow pore distribution and a high porosity rate. Initially, research and development focused on the application of SPG technology in the medical field. However, various research institutions have published their findings, and it is now applied in a variety of fields including medicine, pharmaceuticals, chemistry, electronics, cosmetics, and food. The representative method of using SPG, known as the "membrane emulsification method," allows for precise control over the size of the desired emulsion by using it as a dispersion membrane, enabling the preparation of uniform monodisperse emulsions. Currently, SPG application technology contributes to the creation of new product values, ranging from disposable devices that prepare several milliliters of pharmaceuticals on-site in medical settings to the manufacturing processes for monodisperse emulsions in factory scales of several tens to hundreds of liters, as well as its use in semiconductor processes.