Chemistry: analytical and immunological testing – Optical result – Including reagent preparation
Reexamination Certificate
2005-09-16
2009-10-27
Hill, Jr., Robert J (Department: 1797)
Chemistry: analytical and immunological testing
Optical result
Including reagent preparation
C436S080000, C075S362000, C075S371000, C977S777000
Reexamination Certificate
active
07608461
ABSTRACT:
A method for producing metal nanoparticles that when associated with an analyte material will generate an amplified SERS spectrum when the analyte material is illuminated by a light source and a spectrum is recorded. The method for preparing the metal nanoparticles comprises the steps of (i) forming a water-in-oil microemulsion comprising a bulk oil phase, a dilute water phase, and one or more surfactants, wherein the water phase comprises a transition metal ion; (ii) adding an aqueous solution comprising a mild reducing agent to the water-in-oil microemulsion; (iii) stirring the water-in-oil microemulsion and aqueous solution to initiate a reduction reaction resulting in the formation of a fine precipitate dispersed in the water-in-oil microemulsion; and (iv) separating the precipitate from the water-in-oil microemulsion.
REFERENCES:
patent: 3357819 (1967-12-01), Landsberg
patent: 4145214 (1979-03-01), Yoerger
patent: 4721524 (1988-01-01), Sheldon et al.
patent: 4872905 (1989-10-01), Bourne et al.
patent: 5514202 (1996-05-01), Lin et al.
patent: 5686150 (1997-11-01), Matsumoto
patent: 6149868 (2000-11-01), Natan et al.
patent: 6177103 (2001-01-01), Pace et al.
patent: 6348431 (2002-02-01), Even, Jr.
patent: 6579721 (2003-06-01), Natan et al.
patent: 6623977 (2003-09-01), Farquharson et al.
patent: 6770488 (2004-08-01), Carron et al.
patent: 6888629 (2005-05-01), Boss et al.
patent: 2004/0232347 (2004-11-01), Melekov et al.
patent: 2004/0261907 (2004-12-01), Hattori et al.
patent: 2005/0196870 (2005-09-01), Sun
Moskovits. M.; “Surface-enhanced spectroscopy”Reviews of Modern Physics, 1985 v.57(3), pp. 783-829, Jul. 1985.
Jensen, T.R.; Malinsky, M.D.; Haynes, C.L.; and Van Duyne, R.P.; “Nanosphere Lithography; Tunable Localized Surface Plasmon Resonance Spectra of Silver Nanoparticles,”Journal of Physical Chemistry B, 2000, v.104(45), pp. 10549-10556, Web published Oct. 21, 2000.
Simmons, B.A.; Sichu, L., John, V.T.; McPherson, G.L.; Bose, A.; Zhou, W.; and He, J; “Morphology of CdS Nanocrystals Synthesized in a Mixed Surfactant System,”Nano Letters, 2002 v.2(4), pp. 263-268, Web published Mar. 7, 2002.
Cortie, M.B.; van der Lingen, E.; “Catalytic Gold Nano-Particles”Materials Forum, 2002, v.26, pp. 1-14.
Boyen, H.-G.; Herzog, T.; Kastle, G.; Weigl, F.; Ziemann, P.; Spatz, J.P.; Moller, M.; Wahrenberg, R.; Garnier, M.G.; and Oelhfen, P.; “X-ray photoelectron spectroscopy study on gold nanoparticles supported on diamond,”Physical Review B, 2002, v.65(7), pp. 075412-1-075412-5.
Goia, D.V.; “Preparation and formation mechanisms of uniform metallic Particles in homogenous solutions,”Journal of Materials Chemistry2004, v.14, pp. 451-458; Web published Jan. 12, 2004.
Koo, T.-W.; Chan, S.; Sun, L.; Su, X.; Zhang, J.; and Berlin, A.A.; “Specific Chemical Effects on Surface-Enhanced Raman Spectroscopy for Ultra-Sensitive Detection of Biological Molecules,”Journal of Applied Spectroscopy, 2004, v58(12), pp. 1401-1407.
Su, X.; Zhang, J.; Sun, L.; Koo, T.-W.; Chan, S.; Sundararajan, N.; Yamakawa, M.; and Berlin, A.A.; “Composite Organic-Inorganic Nanoparticles (COINs) with Chemically Encoded Optical Signatures,”Nano Letters, 2005, v.5(1), pp. 49-54, Web published Mar. 7, 2002.
Simmons Blake A.
Talin Albert Alec
Evans Timothy P.
Gerido Dwan A
Hill, Jr. Robert J
Sandia Corporation
LandOfFree
Surface engineered nanoparticles for improved surface... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface engineered nanoparticles for improved surface..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface engineered nanoparticles for improved surface... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4110422