Patent · US Expired

Thiol terminated monodisperse ethylene oxide oligomer capped gold nanoclusters

US7404928B2 · kind B2 · utility

5Cited by

4References

14Claims

0Family size

Assignee

United States of America as represented by the Secretary of the Air Force · US

Inventors

Edward E. Foos · Alexandria, US
Arthur W. Snow · Alexandria, US

Key dates

Filing date	Jul 29, 2002
Grant date	Jul 29, 2008
Priority date	—
Expiry date	May 30, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB82Y30/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A thiol terminated ethylene oxide oligomer and the method of substituting the oligomer onto a gold nanocluster surface using a thiol-exchange reaction to form a charge-neutral, non-ionizable, water soluble, ethylene oxide protected gold nanocluster. The thiol terminated ethylene oxide oligomer has the formula CH3(OCH2CH2)xSH where x varies from one to ten. Also disclosed is the related method of making the thiol terminated ethylene oxide oligomer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.