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:
Dec. 02, 2014
Filed:
Jun. 22, 2012
Kyoungja Woo, Seoul, KR;
Seokheon Lee, Seoul, KR;
Wooyoung Park, Daegu, KR;
Youngbeom Yu, Seoul, KR;
Kyoungja Woo, Seoul, KR;
Seokheon Lee, Seoul, KR;
Wooyoung Park, Daegu, KR;
Youngbeom Yu, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
A superparamagnetic nanoparticle is comprised of superparamagnetic nanocrystals less than 20 nm in size, and molecules having containing 3 to 5 carboxyl groups, wherein the molecules bond to surfaces of the superparamagnetic nanocrystals. A method for producing superparamagnetic nanoparticles includes preparing an alkaline solution with pH 10 to 14, producing a mixture in which molecules containing 3 to 5 carboxyl groups, a divalent transition metal and ferric precursors are dissolved, and adding the mixture into the alkaline solution.