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:
Sep. 12, 2017
Filed:
Aug. 30, 2011
Bong-sik Jeon, Daejeon, KR;
Eung Gyu Kim, Daejeon, KR;
Eun Byul Kwon, Daejeon, KR;
Ju Young Park, Daejeon, KR;
Wan Jae Myeong, Daejeon, KR;
Bong-Sik Jeon, Daejeon, KR;
Eung Gyu Kim, Daejeon, KR;
Eun Byul Kwon, Daejeon, KR;
Ju Young Park, Daejeon, KR;
Wan Jae Myeong, Daejeon, KR;
HANWHA CHEMICAL CORPORATION, Seoul, KR;
Abstract
Provided are iron oxide nanocapsules for an MRI contrast agent having high contrast, in which a plurality of iron oxide nanoparticles having a hydrophobic ligand attached thereto are encapsulated in an encapsulation material including a biodegradable polymer and a surfactant, and which satisfy Relations 1, 2, 3, 4 and 5 below. Also a method of manufacturing the iron oxide nanocapsules is provided.5≦100*(IO)/(IO)  [Relation 1]2.5≦100*(Cap)/(Cap)  [Relation 2]0.5 wt %≦(IO)≦50 wt %  [Relation 3]1 nm≦(IO)≦25 nm  [Relation 4]50 nm≦(Cap)≦200 nm  [Relation 5]