Surface modified nanoparticles

Patent metadata

Field	Value
Publication number	US-10377944-B2
Application number	US-201715831019-A
Country	US
Kind code	B2
Filing date	Dec 4, 2017
Priority date	Dec 22, 2011
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

Surface-modified nanoparticles are produced by associating ligand interactive agents with the surface of a nanoparticle. The ligand interactive agents are bound to surface modifying ligands that are tailored to impart particular solubility and/or compatibility properties. The ligand interactive agents are crosslinked via a linking/crosslinking agent, such as hexamethoxymethylmelamine or a derivative thereof. The linking/crosslinking agent may provide a binding site for binding the surface modifying ligands to the ligand interactive agents.

First claim

What is claimed is:

1. A composition comprising a nanoparticle and guaifenesin bound thereto.

2. The composition of claim 1 , wherein the nanoparticle further comprises a ligand interactive agent comprising a first portion associated with a surface of the nanoparticle and a second portion bound to a linking/crosslinking agent, and wherein the guaifenesin is bound to the linking/crosslinking agent.

3. The composition of claim 2 , wherein the linking/crosslinking agent is a melamine compound.

4. The composition of claim 3 , wherein the melamine compound is hexamethoxymethylmelamine.

5. The composition of claim 2 , wherein the ligand interactive agent is a C 8 -C 20 fatty acid.

6. The composition of claim 2 , wherein the ligand interactive agent is a C 8 -C 20 fatty acid ester.

7. The composition of claim 2 , further comprising capping ligands on a surface of the nanoparticle, wherein the first portion of the ligand interactive agent is intercalated with the capping ligands.

8. The composition of claim 1 , wherein the nanoparticle includes a core comprising any one of CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, InP, InAs, InSb, AlP, AlS, AlAs, AlSb, GaN, GaP, GaAs, GaSb, PbS, PbSe, Si, Ge, and any combination thereof.

9. The composition of claim 8 , further comprising at least one shell layer disposed on the core, wherein the at least one shell layer comprises any one of ZnS, ZnO, MgS, MgSe, MgTe, GaN, and any combination thereof.

10. The composition of claim 1 , further comprising a polar solvent.

11. The composition of claim 1 , further comprising an acrylate.

12. The composition of claim 11 , wherein the acrylate is an acrylate resin.

13. The composition of claim 11 , wherein the acrylate is trimethylolpropane trimethacrylate.

14. The composition of claim 1 , wherein the nanoparticle does not comprise cadmium.

15. The composition of claim 1 , wherein the nanoparticle is a semiconductor nanoparticle.

16. The composition of claim 1 , wherein the nanoparticle is an InP/ZnS nanoparticle.

17. The composition of claim 1 , wherein the composition is an ink.

18. The composition of claim 1 , wherein the composition is in the form of a bead.

19. A light emitting diode (LED), the LED comprising the composition of claim 1 .

20. The LED of claim 19 , further comprising an encapsulant, wherein the composition of claim 1 is incorporated into the encapsulant.

Assignees

• Nanoco Technologies Ltd

Inventors

• Naasani Imad

Classifications

• C09K11/70

  containing phosphorus · CPC title

• Y10S977/774

  Exhibiting three-dimensional carrier confinement, e.g. quantum dots · CPC title

• C09K11/565

  with zinc cadmium · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title