Anchoring gold nanoparticles onto a mica surface by oxygen plasma ashing for sequential nanocomponent assembly

Journal Article · Mon Jan 22 00:00:00 EST 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2432276· OSTI ID:20971789

Takagi, Akihiko; Ojima, Kaoru; Mikamo, Eriko; Matsumoto, Takuya; Kawai, Tomoji ^[1]

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1. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), 4-1-8 Honcho, Kawaguchi, 332-0012 Saitama (Japan)

Water-soluble gold nanoparticles were immobilized in both polar (water) and nonpolar (chloroform) liquids on hydrophilic mica surface by oxygen plasma ashing. It is then demonstrated that a DNA with a thiol at an extremity is attached to the immobilized nanoparticles due to the gold-thiol coupling and stretched in the flow direction of the following water rinse. This technique allows a sequential integration of nanoparticles and molecules for various solutions, since the nanoparticles remain on a solid surface rather than dissolve into the solution.

• OSTI ID: 20971789
• Journal Information: Applied Physics Letters, Vol. 90, Issue 4; Other Information: DOI: 10.1063/1.2432276; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIOPHYSICS
CHLOROFORM
DNA
ETCHING
GOLD
MICA
NANOSTRUCTURES
OXYGEN
PARTICLES
PLASMA
SOLUTIONS
THIOLS
WATER