IP Library Granted Patent US 9,320,749
Granted Patent B2
US 9,320,749 · App. 14/590,124 · Granted Apr 26, 2016

Nanoparticle delivery system for targeted anti-obesity treatment

Inventors: Baskaran Thyagarajan (Laramie, WY); Padmamalini Baskaran (Laramie, WY)
Assignee: UNIVERSITY OF WYOMING
A61K31/7034A61K31/165A61K31/23A61K31/231A61K31/357A61K41/0052Y10S977/773Y10S977/906
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,320,749
App. No.
14/590,124
Granted
Apr 26, 2016
Kind
B2
Abstract

A magnetic nanoparticles including a TRPV1 agonist, as well as methods of preparation and use, are described herein. A magnetically responsive pharmaceutical can include a core region having a magnetic nanoparticle (MNPs) and a TRPV1 protein agonist. Further, an exterior coating comprising a polymer can be formed around the core region. The magnetically responsive pharmaceutical can be administered to a recipient and directed to a target region using an external magnetic field.

Claims (26)

1. A magnetically responsive pharmaceutical comprising:

magnetic nanoparticles (MNPs);

a TRPV1 protein agonist contacting the MNPs; and

an exterior coating formed over the MNPs and the TRPV1 protein agonist, the exterior coating comprising a polymer,

wherein the TRPV1 protein agonist forms an intermediate layer over the MNPs.

2. The pharmaceutical of claim 1 , wherein the TRPV1 agonist is selected from the group consisting of dihydrocapsiate, capsaicin, civamide, endovanilloids, resiniferatoxin, N-Vanillylnonanamide, capsiate, Capsaicin-D-Glucopyranoside, and combinations thereof.

3. The pharmaceutical of claim 1 , wherein the polymer is selected from the group consisting of poly(lactic-co-glycolic acid) (PLGA) Polylactic acid (PLA), Polyglycolic acid (PGA), poly-D-lactic acid (PDLA), PLGA-dimethacrylate, fluorescent PLGA polymers, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.2, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.1, Ethyl cellulose, cellulose derivatives, and combinations thereof.

4. The pharmaceutical of claim 1 , wherein the MNPs comprise a material selected from the group consisting of iron, cobalt, nickel and combinations thereof.

5. An oral pharmaceutical composition in solid unit dosage form comprising:

from about 1% to about 100% of a magnetically responsive pharmaceutical, the magnetically responsive pharmaceutical comprising:

magnetic nanoparticles (MNPs); and

a TRPV1 protein agonist contacting the MNPs; and

an coating surrounding the MNPs and the TRPV1 protein agonist, the coating comprising a polymer; and

from about 0% to about 99% pharmaceutically-acceptable excipients,

wherein the TRPV1 protein agonist forms an intermediate layer over the magnetic nanoparticles.

6. The oral pharmaceutical composition of claim 5 , wherein the TRPV1 agonist is selected from the group consisting of dihydrocapsiate, capsaicin, civamide, endovanilloids, resiniferatoxin, N-Vanillylnonanamide, capsiate, Capsaicin-D-Glucopyranoside, and combinations thereof.

7. The oral pharmaceutical composition of claim 5 , wherein the polymer is selected from the group consisting of poly(lactic-co-glycolic acid) (PLGA), Polylactic acid (PLA), Polyglycolic acid (PGA), poly-D-lactic acid (PDLA), PLGA-dimethacrylate, fluorescent PLGA polymers, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.2, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.1, Ethyl cellulose, cellulose derivatives, and combinations thereof.

8. The oral pharmaceutical composition of claim 5 , wherein the MNPs comprise a material selected from the group consisting of iron, cobalt, nickel and combinations thereof.

9. A magnetically responsive pharmaceutical comprising:

magnetic nanoparticles (MNPs);

a TRPV1 protein agonist forming an intermediate layer over the MNPs; and

an exterior coating formed over the MNPs and the TRPV1 protein agonist, the exterior coating comprising a polymer.

10. The pharmaceutical of claim 9 , wherein the TRPV1 agonist is selected from the group consisting of dihydrocapsiate, capsaicin, civamide, endovanilloids, resiniferatoxin, N-Vanillylnonanamide, capsiate, Capsaicin-D-Glucopyranoside, and combinations thereof.

11. The pharmaceutical of claim 9 , wherein the polymer is selected from the group consisting of poly(lactic-co-glycolic acid) (PLGA), Polylactic acid (PLA), Polyglycolic acid (PGA), poly-D-lactic acid (PDLA), PLGA-dimethacrylate, fluorescent PLGA polymers, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.2, Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.1, Ethyl cellulose, cellulose derivatives, and combinations thereof.

12. The pharmaceutical of claim 9 , wherein the MNPs comprise a material selected from the group consisting of iron, cobalt, nickel and combinations thereof.

13. The pharmaceutical of claim 9 , wherein the magnetic nanoparticle comprises metal ions, and wherein the molar ratio of polymer to metal ions is between 1:40 and 1:300.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jul 7, 2016
From: UNIVERSITY OF WYOMING
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 039276/0397 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2015
From: THYAGARAJAN, BASKARAN; BASKARAN, PADMAMALINI
To: UNIVERSITY OF WYOMING
Reel/Frame 037256/0775 →
Continuity (2)
Provisional Application 61924026 · Jan 6, 2014
Related Publication 20150190531A1 · Jul 9, 2015