The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2016
Filed:
Oct. 28, 2010
Polymer coated ferrite fine particles and method for preparing polymer coated ferrite fine particles
Hiroshi Handa, Tokyo, JP;
Mamoru Hatakeyama, Kanagawa, JP;
Satoshi Sakamoto, Kanagawa, JP;
Hiroshi Kishi, Kanagawa, JP;
Hiroshi Handa, Tokyo, JP;
Mamoru Hatakeyama, Kanagawa, JP;
Satoshi Sakamoto, Kanagawa, JP;
Hiroshi Kishi, Kanagawa, JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
[Object] To provide a polymer coated ferrite fine particles being possible to control a particle size uniformly while having high aqueous dispersibility and preferred biomolecule immobilization ability and an easy method for preparing the same. [Means Addressing Object] In an aqueous solvent, iron ion is protected by chelating polyacrylic acid and then alkaline is added. Thereafter, a reaction system is heated under pressurized condition to produce simultaneous precipitation of the ferrite fine particles and coating thereof. As the result, the polymer coated ferrite fine particles having uniform particle size may be prepared in one step with excellent reproducibility. The polymer coated ferrite fine particles of the present invention has high water dispersibility and has preferred biomolecule immobilization performance by carboxyl groups coming from the polyacrylic acid.