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US6984265: Three dimensional array films

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Filing Information

Inventor(s) Burkhard Raguse · Vijoleta Lucija Bronislava Braach-Maksvytis ·
Assignee(s) Commonwealth Scientific and Industrial Research Organisation ·
Attorney/Agent(s) Christie, Parker and Hale, LLP ·
Primary Examiner Robert Kunemund ·
Application Number US10089820
Filing date 10/05/2000
PCT 371 date 07/31/2002
Issue date 01/10/2006
Predicted expiration date 05/09/2022
Patent term adjustment 581
U.S. Classifications 117/73  · 117/78  · 117/68  ·
International Classifications C30B1904  ·
Kind CodeB1
PCT Application Number WO20PCTAU0001210 - 10/05/2000
PCT Publication Number WO200125316 - 04/12/2001
Foreign Priority AUPQ3264 - 10/05/1999 ·
38 Claims, 9 Drawings


Abstract

The present invention provides nanoparticle film and methods of making such films. The nanoparticle film comprises a three dimensional cross-linked array of nanoparticles and linker molecules. The nanoparticle film is coherent, robust and self supporting. The film may be produced by adding linker molecules to a suspension of nanoparticles. The linker molecules form cross-links between the nanoparticles. Prior to completion of the cross-linking reaction the cross-linked nanoparticles are separated from the suspension.

Independent Claims | See all claims (38)

  1. 1. A method of forming a coherent nanoparticle film, the method comprising the following steps: (i) adding to a suspension of nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction; and (ii) separating the cross-linked nanoparticles from the suspension prior to completion of the cross-linking reaction to obtain a coherent nanoparticle film.
  2. 5. A method of forming a multilayer film comprising at least two layers of coherent nanoparticle film, the method comprising the following steps: (i) adding to a suspension of nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction; (ii) passing the suspension from step (i) through a porous support prior to completion of the cross-linking reaction to form a nanoparticle film on the porous support; (iii) adding to a further suspension comprising nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction; (iv) passing the further suspension from step (iii) through the nanoparticle film of step (ii) and the porous support prior to completion of the cross-linking reaction to form a further nanoparticle film; and (v) optionally repeating steps (iii) and (iv).
  3. 24. A nanoparticle film comprising a three dimensional cross-linked array of nanoparticles and linker molecules in which the nanoparticle film is coherent, robust and self supporting.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4945121* Koh-I-NOOR Radiograph, Inc. Micale et al. Jul 1990
US5711803 Midwest Research Institute Pehnt et al. Jan 1998
US6129786* BASF Aktiengesellschaft Camara et al. Oct 2000
US6533855* Novellus Systems, Inc. Gaynor et al. Mar 2003
US6592844* Chiron Corporation Coombes et al. Jul 2003
US20020168408* Samain et al. Nov 2002
US20020182146* Coombes et al. Dec 2002

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
AU1743397JAMES R HEATHJul 1997
AU2994799UNIV WM MARSH RICESep 1999
AU2994799UNIV WM MARSH RICESep 1999
DE19741496BASF AGMar 1999
DE19741496BASF AGMar 1999
DE19756790FRAUNHOFER GES FORSCHUNGJul 1999
DE19756790FRAUNHOFER GES FORSCHUNGJul 1999
WO199724224Jul 1997
WO199946351Sep 1999
WO200020916MASSACHUSETTS INSTITUTE OF TECHNOLOGYApr 2000
* cited by examiner

Other Publications

International Search Report for PCT/AU00/01210, dated Nov. 23, 2000.
International Preliminary Examination Report for PCT/AU00/01210. dated Aug. 21, 2001.
M. Musick et al., “Stepwise Construction of Conductive Au Colloid Multilayers from Solution”; Chem Mater. 1997, 9, pp. 1499-1501.