Patent · US Active

Magnetically responsive membranes

US9132389B2 · kind B2 · utility

1Cited by

6References

18Claims

0Family size

Assignee

COLORADO STATE UNIVERSITY RESEARCH FOUNDATION · US

Inventors

Sumith Ranil Wickramasinghe · Fayetteville, US
Xianghong Qian · Fayetteville, US
Heath H. Himstedt · Littleton, US
Mathias Ulbricht · Berlin, DE
Michael J. Semmens · Windom, US

Key dates

Filing date	Aug 8, 2012
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Apr 18, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2325/46
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.

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