Carbene-functionalized composite materials

Patent metadata

Field	Value
Publication number	US-11801528-B2
Application number	US-202117503901-A
Country	US
Kind code	B2
Filing date	Oct 18, 2021
Priority date	Aug 19, 2013
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

The present application provides stable, carbene-functionalized composite materials, and methods and uses thereof. These carbene-functionalized composite materials comprise a material having a metal surface, and a carbene monolayer that is uniform, contaminant-free (metal oxide, etc), and more stable than thiol-functionalized monolayers. Uses of such carbene-functionalized composite materials include semi-conducting materials, microelectronic devices, drug delivery or sensing applications.

First claim

We claim:

1. A carbene-functionalized composite, comprising:
1,3-dihydro-1,3-bisisopropyl-2H-benzimidazol-2-ylidene carbene coating on a flat metal surface, wherein the metal is selected from the group consisting of rhodium, iridium, and any combination thereof, and
wherein the 1,3-dihydro-1,3-bisisopropyl-2H-benzimidazol-2-ylidene carbene interacts with the metal surface to form a densely packed carbene monolayer coating that exhibits long-range ordering and is thermally stable at 100° C. for 24 hours,
and wherein the metal surface is selected from the group consisting of bulk metal, solid metal, atomically ordered metal surface, metal film, metal sheet, and metal layer, and is not a nanoparticle.

2. The composite of claim 1 , wherein the carbene monolayer comprises <5% contamination.

3. The composite of claim 1 , further comprising a support comprised of mica, alumina, silica, titania, silicon, glass, indium tin oxide, or any combination thereof.

4. The composite of claim 1 , wherein the metal surface is a metal chip.

5. The composite of claim 1 , wherein the composite is a surface plasmon resonance (SPR) detector chip.

6. The composite of claim 1 , further comprising a non-metal surface.

7. The composite of claim 1 , wherein the carbene monolayer comprises <2% contamination.

Assignees

• Univ Kingston

Inventors

• Crudden Cathleen M
• Horton J Hugh
• Zenkina Olena V
• Ebralidze Iraklii I
• Smith Christene Anne

Classifications

• B05D1/18 Primary

  performed by dipping · CPC title

• B32B15/04 Primary

  comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)} · CPC title

• G01N21/554

  detecting the surface plasmon resonance of nanostructured metals, e.g. localised surface plasmon resonance · CPC title

• B32B2457/00

  Electrical equipment · CPC title

• G01N33/54373

  involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings · CPC title