Abstract: The present invention relates to expanded particles and an expanded molded article. More specifically, the present invention relates to expanded particles comprising a polycarbonate-based resin as a base resin, which has a specified cell density X and a specified average cell wall thickness, as well as an expanded molded article. In addition, the present invention relates to expanded particles comprising a polycarbonate-based resin as a base resin, which has a specified bulk ratio and a specified average cell diameter, as well as an expanded molded article.

Abstract: There are provided a method for producing particles by suspension polymerization which ensures an excellent dispersion stability of the monomer and a simpler washing step, composite particles obtainable by this production method, and use of the composite particles. The method for producing composite particles includes a polymerization step of subjecting a monomer mixture which contains a polymerizable vinyl monomer to aqueous suspension polymerization in a presence of small polymer particles having a volume-average particle size of 20 to 500 nm, with a water-soluble cellulose compound adsorbing on surfaces of the small polymer particles, and thereby obtaining composite particles which contain the small polymer particles and large polymer particles greater than the small polymer particles.

Abstract: There are provided a method for producing particles by suspension polymerization which ensures an excellent dispersion stability of the monomer and a simpler washing step, composite particles obtainable by this production method, and use of the composite particles. The method for producing composite particles includes a polymerization step of subjecting a monomer mixture which contains a polymerizable vinyl monomer to aqueous suspension polymerization in a presence of small polymer particles having a volume-average particle size of 20 to 500 nm, with a water-soluble cellulose compound adsorbing on surfaces of the small polymer particles, and thereby obtaining composite particles which contain the small polymer particles and large polymer particles greater than the small polymer particles.

Abstract: A novel acetylpolyamine amidohydrolase is described. The enzyme specifically hydrolyzes the amino bond in acetylputrescine, acetylcadaverine, acetylspermidine and acetylspermine with strong substrate affinity. The enzyme is preferably produced by culturing a microorganism belonging to the genus Mycoplana, and is used in the quantitative determination of polyamine contained in a living body sample, which is useful for cancer diagnosis.

Abstract: Novel bilirubin oxidase inactive against phenol, catechol, and hydroquinone, and a process for preparing said enzyme by recovering it from a culture liquor of bilirubin oxidase producing microorganisms belonging to the genus Coprinus, Trametes, Coriolus, Pholiota, Pleurotus, Lenzites, or Fomitopsis. This enzyme can decompose bilirubin when added to a bilirubin-containing solution, and makes it possible to assay bilirubin by measuring a decrease in absorption in the visible region of the reaction solution. Thus, it can be used for assaying bilirubin and for removing it from a sample to avoid its interference in determining a substrate or an enzyme activity.