Patent · US Active

Magnetic nanoparticles and method for producing the same

US7547473B2 · kind B2 · utility

2Cited by

1References

9Claims

0Family size

Assignee

NATIONAL CHENG KUNG UNIVERSITY · TW

Inventors

Dong Chen · Hangzhou City, CN
Yang-Chuang Chang · Daxi District, TW

Key dates

Filing date	Nov 18, 2005
Grant date	Jun 16, 2009
Priority date	—
Expiry date	Mar 29, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/32
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Magnetic nanoparticles and a method for producing the same are disclosed. A carboxylated polysaccharide with various functions such as chelating and ion exchange is covalently bound on the surfaces of magnetic nanoparticles. The polysaccharide-bound magnetic nanoparticles are highly stable, well dispersed, and have many advantages of high adsorption capacity, fast adsorption rate and easy magnetically manipulation. Hence, the polysaccharide-bound magnetic nanoparticles are applied to adsorb many ionic substances, and further act as an adsorbent for wastewater treatment or biochemical separation, a carrier for drugs or gene site-directed delivery, and a magnetic resonance imaging (MRI) contrast agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.