Bone and metal targeted polymeric nanoparticles

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United States of America Patent

PATENT NO 9872881
SERIAL NO

14531466

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Abstract

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Bone- and metal-targeted polymeric nanoparticles are provided. Exemplary nanoparticles have three main components: 1) a targeting element that can selectively bind to bone, minerals, or metal ions; 2) a layer of stealth to allow the polymer to evade immune response; and 3) a biodegradable polymeric material, forming an inner core which can carry therapeutics or other diagnostics. Preferred nanoparticles contain a blend of target-element polymer conjugate and polymer that optimizes the ligand density on the surface of the nanoparticle to provide improved targeting of the nanoparticle. The ratio of target-element polymer conjugate to polymer can also be optimized to improve the half-life of the nanoparticles in the blood of the subject. The nanoparticles also exhibit prolonged, sustained release of therapeutic agents loaded into the particles.

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Patent Owner(s)

Patent OwnerAddress
THE BRIGHAM AND WOMEN'S HOSPITAL INC75 FRANCIS STREET BOSTON MA 02115

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Basto, Pamela Cambridge, US 21 1621
Farokhzad, Omid C Waban, US 88 4041
Karp, Jeffrey Brookline, US 12 108
Swami, Archana Boston, US 6 48

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