Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2011-06-14
2011-06-14
Le, H. (Holly) T (Department: 1788)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C427S128000, C427S130000, C427S216000, C977S773000, C977S810000, C977S838000, C977S925000, C977S953000, C977S960000
Reexamination Certificate
active
07960025
ABSTRACT:
The invention relates to nanoparticles of noble metals, having a controlled microstructure which leads to the appearance of ferromagnetic behaviour in said nanoparticles, thereby enabling the use of very small magnets (<5 nm) in a range in which standard ferromagnetic metals behave as superparamagnetic entitles (disappearance of hysteresis cycle). The inventive nanoparticles can be used, for example, to reduce the dimensions in magnetic recordings, as well as in biomedicine as tools for biomolecule recognition, nuclear magnetic resonance imaging, drug-release control or hypothermia treatments.
REFERENCES:
patent: 5294369 (1994-03-01), Shigekawa et al.
patent: 6730400 (2004-05-01), Komatsu et al.
patent: 6923923 (2005-08-01), Cheon et al.
patent: 6929675 (2005-08-01), Bunge et al.
patent: 1 211 698 (2002-06-01), None
patent: 1 323 793 (2003-07-01), None
patent: 1 339 075 (2003-08-01), None
patent: 2003-132519 (2003-05-01), None
patent: 97/24224 (1997-07-01), None
patent: 01/25316 (2001-04-01), None
patent: 01/73123 (2001-10-01), None
patent: 02/18643 (2002-03-01), None
patent: 02/32404 (2002-04-01), None
patent: 03/035829 (2003-05-01), None
patent: 03/057175 (2003-07-01), None
patent: 03/072830 (2003-09-01), None
Crespo et all, Permanent Magnetism, Magnetic Anisotropy, and Hysteresis of Thiol-Capped Gold Nanoparticles, Phys. Rev. Lett., vol. 93, No. 8, Aug. 20, 2004, 087204.
Wuelfing et al., Nanometer Gold Clusters Protected by Surface-Bound Monolayers of Thiolated Poy(ethylene glycol) Polymer Electrolyte, J. Am. Chem. Soc. (1998), 120, 12696-12697.
Maurat et al, Thermal Properties of open-shell metal clusters, New J. Phys., vol. 11, No. 10 (2009) 103031.
Takano, N., et al., Effect of Copious Vacancies on Magnetism of Pd. Solid State Communications. vol. 97, No. 2. Great Britain. Elsevier Science Ltd. 1996. pp. 153-156.
Sampedro, B., et al. Ferromagnetism in fcc Twinned 2.4 nm Size Pd Nanoparticles. Physical Review Letters. vol. 91, No. 23. The American Physical Society. Dec. 5, 2003. pp. 237203-1-237203-4.
Shinohara, T., and Sato, T. Surface ferromagnetism of Pd Fine Particles. Physical Review Letters. vol. 91, No. 19. The American Physical Society. Nov. 7, 2003. pp. 197201-1-197201-4.
Taniyama, T., Ohta, E., Sato, T. Ferromagnetism of Pd fine particles. Physica B. 1997. pp. 286-288.
Huger, E., Osuch, K. Ferromagnetism in hexagonal close-packed Pd. Europhysics Letters. vol. 63, No. 1. Jul. 1, 2003. pp. 90-96.
Kumar, Vijay, Kawazoe, Yoshiyuki. Icosahedral growth, magnetic behavior, and adsorbate-induced metal-nonmetal transition in palladium clusters. Physical Review B. vol. 66. 2002. pp. 144413-1-144413-11.
Hori, H. et al. Magnetic properties of nano-particles of Au, Pd and Pd/Ni alloys. Journal of Magnetism and Magnetic Materials. 2001. pp. 1910-1911.
Ravel, B., Carpenter, E.E., Harris, V.G. Oxidation of iron in iron/gold core/shell nanoparticles. Journal of Applied Physics. vol. 91, No. 10. May 15, 2002. pp. 8195-8197.
Del Monte, F., et al. Formation of γ-Fe2O3 Isolated Nanoparticles in a Silica Matrix. Langmuir. vol. 13, No. 14. 1997. pp. 3627-3634.
Sunil, D., et al. Iron and iron oxide particle growth in porous Vycor glass; correlation with optical and magnetic properties. Journal of Non-Crystalline Solids. vol. 319. 2003. pp. 154-162.
Okamoto, S., et al. Size dependencies of magnetic properties and switching behavior in FePtL10nanoparticles. Physical Review B. vol. 67. 2003. pp. 094422-1-094422-7.
Guzman, Maribel, et al. Morphologic and magnetic properties of Pd100−xFexnanoparticles prepared by ultrasound assisted electrochemistry. Journal of Applied Physics. vol. 92, No. 5. Sep. 1, 2002. pp. 2634-2640.
Yao, Y.D., et al. Magnetic and thermal studies of nano-size Co and Fe particles. Journal of Magnetism and Magnetic Materials. vol. 239. 2002. pp. 249-251.
Shen, C.M., et al. Synthesis and characterization ofn-octadecayl mercaptan-protected palladium nanoparticles. Chemical Physical Letters. vol. 373. 2003. pp. 39-45.
Chen, Shaowei, et al. Alkanethiolate-Protected Palladium Nanoparticles. Chem. Mater. vol. 12. 2000. pp. 540-547.
Schmid, Gunter, et al. Pt309Phen36O30±10, a Four-Shell Platinum Cluster. Agnew. Chem. Int. Ed. Engl. vol. 28., No. 6. 1989. pp. 778-780.
Bradley, John S., et al. Surface Chemistry on Colloidal Metals: A High-Resolution Nuclear Magnetic Resonance Study of Carbon Monoxide Adsorbed on Metallic Palladium Crystallites in Colloidal Suspension. J. Am. Chem. Soc. vol. 113. 1991. pp. 4016-4017.
Bonnemann, Helmut, et al. Formation of Colloidal Transition Metals in Organic Phases and Their Application in Catalysis. Agnew. Chem. Int. Ed. Engl. vol. 30. 1991. pp. 1312-1314.
Brown, Kenneth R. Hydroxylamine Seeding of Colloidal Au Nanoparticles in Solution and on Surfaces. Langmuir. vol. 14. No. 4. 1998. pp. 726-728.
Pillai, Zeena S., et al. What Factors Control the Size and Shape of Silver Nanoparticles in the Citrate Ion Reduction Method? J. Phys. Chem. B. vol. 108. 2004. pp. 945-951.
Brust, Mathias, et al. Synthesis of Thiol-derivatised Gold Nanoparticles in a Two-phase Liquid-Liquid System. J. Chem. Soc., Chem. Commun. 1994. pp. 801-802.
Reetz, Manfred, et al. Redox-Controlled Size-Selective Fabrication of Nanostructured Transition Metal Colloids. Advanced Materials. vol. 11, No. 9. 1999. pp. 773-777.
Reetz, Manfred, et al. Visualization of Surfactants on Nanostructured Palladium Clusters by a Combination of STM and High-Resolution TEM. Science. vol. 267. 1995. pp. 367-369.
Thomas O'Mahony et al., “Alkylthiol gold nanoparticles in open-tubular capillary electrochromatography”, Journal of Chromatography A, vol. 1004, pp. 181-193 (2003).
Mathias Brust et al., “Some recent advances in nanostructure preparation from gold and silver particles: a short topical review”, Colloids and Surfaces, A: Physicochemical and Engineering Aspects, vol. 202, pp. 175-186 (2002).
F. Sbrana et al., “Assembling thiolated gold nanoparticles in compact patterns: a transmission electron microscopy and scanning probe microscopy investigation”, Materials Science and Engineering, B96, pp. 193-198 (2002).
Anita Swami et al., “Water-dispersible nanoparticles via interdigitation of sodium dodecylsulphate molecules in octadecylamie-capped gold nanoparticles at a liquid-liquid interface”, Proc. Indian Acad. Sci. (Chem. Sci.), vol. 115, Nos. 5 & 6, pp. 679-687 (2003).
Dormann, J.L. Le phenomene de superparamagnetisme. Revue de Physique Appliquee. vol. 16. 1981. pp. 275-301 (Abstract, Table IV and Figure 12 which are in English).
Crespo Del Arco Patricia
Fernandez Camacho M' Asunción
Hernando Grande Antonio
Litran Ramos Rocio
Rojas Ruiz Teresa Cristina
Consejo Superior de Investigaciones Cientificas
Le H. (Holly) T
Universidad Complutense de Madrid
Wenderoth , Lind & Ponack, L.L.P.
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