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:
Feb. 19, 2013
Filed:
May. 16, 2007
Michael J. Sailor, La Jolla, CA (US);
Ji-ho Park, La Jolla, CA (US);
Austin Derfus, Solana Beach, CA (US);
Ester Segal, Haifa, IL;
Kenneth S. Vecchio, San Diego, CA (US);
Sangeeta N. Bhatia, Lexington, MA (US);
Michael J. Sailor, La Jolla, CA (US);
Ji-Ho Park, La Jolla, CA (US);
Austin Derfus, Solana Beach, CA (US);
Ester Segal, Haifa, IL;
Kenneth S. Vecchio, San Diego, CA (US);
Sangeeta N. Bhatia, Lexington, MA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
The present invention uses externally applied electromagnetic stimulus to control and heat porous magnetic particles and material associated with the particles. The particles contain magnetic material, such as superparamagnetic iron oxide and are infused with a material. Application of a DC magnetic field allows them to be moved with their infused material, and application of an AC RF electromagnetic field allows them to be heated with their infused material. The material can be infused into pores of the particles and the particles can also adhere to an aqueous droplet. The present invention also provides a multi-layer porous magnetic particle. The particle includes a host layer having pores sized to accept magnetic nanoparticles. Magnetic nanoparticles are infused within pores of the host layer. An encoding layer includes pores that define a spectral code. The pores in the encoding layer are sized to substantially exclude the magnetic nanoparticles. The encoding layer can also be a multi-layer, exhibiting, for example, a complex spectral code.