C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 11/02 (2006.01) C08B 3/06 (2006.01) C08B 5/14 (2006.01) C08B 11/04 (2006.01) C08B 11/08 (2006.01) C08B 11/12 (2006.01) C08B 11/145 (2006.01) C08L 1/08 (2006.01)
Patent
CA 2719357
An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.
L'invention concerne de fines particules de dérivé de cellulose hydrophiles ayant de petits diamètres de particule ; des dispersions fluides des particules et des dispersions solides de celles-ci ; et des médicaments de diagnostic qui comportent des particules hydrophiles et qui ont une excellente stabilité au stockage et peuvent se passer de composants supplémentaires tels que des agents émulsifiants ou des agents tensioactifs. L'invention concerne : de fines particules de dérivé de cellulose comportant un dérivé de cellulose qui est préparé par remplacement partiel des groupes hydroxyles de la cellulose par d'autres substituants, et qui sont caractérisées par le fait que le diamètre moyen de particule est de 9 à 1 000 nm, et des médicaments de diagnostic caractérisés par le fait qu'ils comportent une substance capable de se lier spécifiquement à une substance à analyser et les fines particules de dérivé de cellulose portant la substance sur celles-ci.
Doi Masanori
Matsui Toshihiko
Shiomi Yoshiyuki
Asahi Kasei Fibers Corporation
Goudreau Gage Dubuc
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