Etching a substrate: processes – Etching of semiconductor material to produce an article...
Reexamination Certificate
2008-01-15
2008-01-15
Culbert, Roberts (Department: 1763)
Etching a substrate: processes
Etching of semiconductor material to produce an article...
C428S312600
Reexamination Certificate
active
10567917
ABSTRACT:
The invention is related to optical particles (10), use of optical particles in sensing applications, and methods of fabricating optical particles that can target a desired analyte. The invention is also related to the self assembly of individual optical particles. An advantage of the invention is that it includes self-assembling individual photonic crystal sensors onto a target. In an embodiment of the invention, a processed sensor structure having two generally opposing surfaces is provided, wherein each of the opposing surfaces have different surface affinities, with a first optical structure formed on one of the opposing surfaces, and a second optical structure formed on the other of the opposing surfaces. The chemically and optically asymmetric opposing surfaces will spontaneously align at an organic liquid/water interface. Changes in the optical response of at least one of the opposing surfaces indicate the presence of a particular analyte for sensing applications.
REFERENCES:
patent: 6130748 (2000-10-01), Kruger et al.
patent: 6521136 (2003-02-01), Sfez et al.
patent: 6786968 (2004-09-01), Theil
patent: 6897965 (2005-05-01), Ghadiri et al.
patent: 7022303 (2006-04-01), Riman et al.
patent: 2002/0191884 (2002-12-01), Letant et al.
patent: 2003/0146109 (2003-08-01), Sailor et al.
patent: 2005/0009374 (2005-01-01), Gao et al.
patent: 2005/0042764 (2005-02-01), Sailor et al.
patent: 2006/0051872 (2006-03-01), Sailor et al.
Y. Xia, J.A. Rogers, K.E. Paul, G. Whitesides, “Unconventional Methods for Fabricating and Patterning Nanostructures”, Chem. Rev., 1999, vol. 99, pp. 1823-1848.
M.D. Porter, T.B. Bright, D.L. Allara, C.D. Chidsey, Spontaneously Organized Molecular Assemblies, 4. Structural Characterization of n-Alkyl Thiol Monolayers on Gold by Optical Ellipsometry, Infrared Spectroscopy and Electrochemistry, J. Am. Chem. Soc., 1987, vol. 109, p. 3559-3568.
So-Jung Park, A.A. Lazarides, C.A. Mirkin, R.L. Letsinger, “Directed Assembly of Periodic Materials from Protein and Oligonucleotide-Modified Nanoparticle Building Blocks,” Angew. Chem. Int. Ed. 40, 2001, pp. 2909-2912.
D. Gerion, W.J. Parak, S.C. Williams, D. Zanchet, C.M. Micheel, A.P. Alivisator,“ Sorting Florescent Nanocrystals with DNA,” J. Am. Chem. Soc., vol. 124, 2002, pp. 7070-7074.
C.J. Loweth, W.B. Caldwell, X. Peng, A.P. Alivisatos, P.G. Schultz,“ DNA-Based Assembly of Gold Nanocrystals,” Angew. Chem. Int. Ed., vol. 38, 1999, pp. 1808-1812.
C. Mao, V.R. Thalladi, D.B. Wolfe, S. Whitesides, G.M. Whitesides, “Self-Assembled Aggregates that Spontaneously Reconfigure their Structure when their Environment Changes”, J. Am. Chem. Soc., vol. 124, 2002, pp. 14508-14509.
V.M. Shelekhina, O.A. Prokhorov, P.A. Vityaz, A.P. Stupak, S.F. Gaponenko, N.V. Gaponenko, “Towards 3D Photonic Crystals”, Synthetic Metals, vol. 124, 2001, pp. 137-139.
J.E.G.J. Wijnhoven, W.L. Vos, “Preparation of Photonic Crystals Made of Air Spheres in Titania”, Science, vol. 281, No. 5378, Aug. 7, 1998, p. 802-804.
X. Xu, G. Friedman, K.D. Humfeld, S.A. Majetich, S.A. Asher, “Synthesis and Utilization of Monodisperse Superparamagnetic Colloidal Particles for Magnetically Controllable Photonic Crystals”, Chem. Mater., vol. 14, No. 3, 2002, pp. 1249-1256.
K. Lee, S.A. Asher, “Photonic Crystal Chemical Sensors: pH and Ionic Strength”, J. Am. Chem. Soc., vol. 122, No. 39, 2000, pp. 9534-9537.
J.R. Link, M.J. Sailor, “Smart Dust: Self-Assembling, Self-Orienting Photonic Crystals of Porous Si”, Applied Physical Sciences, Aug. 12, 2003.
X. Xu, S.A. Majetich, S.A. Asher, “Mesoscopic Monodisperse Ferromagnetic Colloids enable Magnetically Controlled Photonic Crystals,” J. Am. Chem. Soc., vol. 124, 2002, 13864-68.
C.P. Collier, T. Vossmeyer, J.R. Heath, “Nanocrystal Superlattices,” Annu. Rev. Phys. Chem., vol. 49, 1998, pp. 371-404.
C.A. Mirkin, R.L. Letsinger, R.C. Mucic, J.J. Storhoff, “A DNA-Based Method for Rationally Assembling Nanoparticles into Macroscopic Materials,” Letters to Nature, vol. 382, Aug. 15, 1996, pp. 607-609.
T.A. Schmedake, F. Cunin, J.R. Link, M.J. Sailor, “Standoff Detection of Chemicals using Porous Silicon “Smart Dust” Particles,” Adv. Mater., vol. 14, No. 18, Sep. 16, 2002, pp. 1270-1272.
G. Vincent, “Optical Properties of Porous Silicon Superlattices,” Appl. Phys. Lett., vol. 64, May 2, 1994, pp. 2367-2369.
M.P. Stewart, J.M. Buriak, “Photopatterned Hydrosilylation on Porous Silicon,” Angew. Chem. Int. Ed. Engl., vol. 37, 1998, pp. 3257-3260.
R. Boukherroub, J.T.C. Wojtyk, D.D.M. Wayner, D.J. Lockwood, “Thermal Hydrosilylation of Undecylenic Acid with Porous Silicon,” J. Electrochem Soc., vol. 149, 2002, pp. 59-63.
F. Cunin, T.A. Schmedake, J.R. Link, Y.Y. Li, J. Koh, S.N. Bhatia, M.J. Sailor, “Biomolecular Screening with Encoded Porous-Silicon Photonic Crystals,” Nat. Mater., vol. 1, 2002, pp. 39-41.
M.G. Berger, R. Arens-Fischer, M. Thoenissen, M. Krueger, S. Billat, H. Lueth, S. Hilbrich, W. Theiss, P. Grosse, “Dielectric Filters Made of PS: Advanced Performance by Oxidation and New Layer Structures,” Thin Solid Films, vol. 297, 1997, pp. 237-240.
C. Gurtner, A. W. Wun, M.J. Sailor, “Surface Modification of Porous Silicon by Electrochemical Reduction of Organo Halides,” Angew. Chem. Int. Ed. Engl., vol. 38, 1999, pp. 1966-1968.
J.M. Buriak, “Organometallic Chemistry on Silicon and Germanium Surfaces,” Chem. Rev., Washington, D.C., vol. 102, No. 5, 2002, pp. 1272-1308.
P.A. Snow, E.K. Squire, P.S.J. Russell, L.T. Canham, “Vapor Sensing Using the Optical Properties of Porous Silicon Bragg Mirrors,” J. Appl. Phys., vol. 86, No. 4, Aug. 15, 1999, pp. 1781-1784.
T. Gao, J. Gao, M.J. Sailor, “Tuning the Response and Stability of Thin Film Mesoporous Silicon Vapor Sensors by Surface Modification,” Langmuir, vol. 18, 2002, pp. 9953-9957.
H. Arwin, M. Gavutis, J. Gustafsson, M. Schultzberg, S. Zangooie, P. Tengvall, “Protein Adsorption in Thin Porous Silicon Layers,” Phys. Status Sol. (a)., vol. 182, 2000, pp. 515-520.
B.E. Collins, K.P. Dancil, G. Abbi, M.J. Sailor, “Determining Protein Size Using Electrochemically Machined Pore Gradient in Silicon,” Adv. Func. Mat., vol. 12, No. 3, Mar. 2002, pp. 187-191.
S. Chan, S.R. Horner, B.L. Miller, P.M. Fauchet, “Identification of Gram Negative Bacteria Using Nanoscale Silicon Microcavities,” J. Am. Chem. Soc., vol. 123, 2001, pp. 11797-11798.
L.T. Canham, M.P. Stewart, J.M. Buriak, C.L. Reeves, M. Anderson, E.K. Squire, P. Allcock, P.A. Snow, “Derivatized Porous Silicon Mirrors: Implantable Optical Components with Slow Resorbability,” Phys. Stat. Sol. (a)., vol. 182, 2000, pp. 521-525.
A.H. Mayne, S.C. Bayliss, P. Barr, M. Tobin, L.D. Buckberry, “Biologically Interfaced Porous Silicon Devices,” Phys. Stat. Sol. (a), vol. 182, 2000, pp. 505-513.
B. Warneke, M. Last, B. Liebowitz, K.S.J. Pister, “Smart Dust: Communicating with a Cubic Millimeter Computer,” IEEE Computer Society, vol. 34, No. 1, Jan. 2001, pp. 44-51.
Y.Y. Li, F. Cunin, J.R. Link, T. Gao, R.E. Betts, S.H. Reiver, V. Chin, S.N. Bhatia, M.J. Sailor, “Polymer Replicas of Photonic Porous Silicon for Sensing and Drug Delivery Applications,” Science, vol. 299, Mar. 28, 2003, pp. 2045-2047.
L.T. Canham, C.L. Reeves, A. Loni, M.R. Houlton, J.P. Newey, A.J. Simons, T.I. Cox, “Calcium Phosphate Nucleation on Porous Silicon: Factors Influencing Kinetics in Acellular Simulated Body Fluids,” Thin Solid Films, vol. 297, 1997, pp. 304-307.
Sailor, M.J., “Properties of Porous Silicon,” The Institution of Electrical Engineers, pp. 364-370, Aug. 1997.
Link Jamie R.
Sailor Michael J.
Culbert Roberts
Greer Burns & Crain Ltd
The Regents of the University of California
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