Gold Surfaces and Sources

Several forces drive the assembly of alkyl thiols on a gold surface. First, the sulfur-gold interactions are quite strong, ~45 kcal/mol, which allows for a relatively strong bonding of the film-forming molecules to the surface. Furthermore, hydrophobic interactions between carbon and hydrogen atoms in the alkyl thiol molecules can significantly lower the overall surface energy thus promoting the formation of a self-assembled monolayer, especially if the alkyl chain contains at least ten carbon atoms. 1,2


References:
1. M.D. Porter et al. J. Am. Chem. Soc., 109, 3559 (1987).
2. C.D. Bain et al. J. Am. Chem. Soc., 111, 7155 (1989).

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636347 Gold nanopowder, <100 nm particle size, 99.9% trace metals basis Au
349305 Gold wire, diam. 1.0 mm, 99.997% trace metals basis Au
643254 Gold coated glass cover slip 99.999% (Au), layer thickness 100 Å, L × W × thickness 22 mm × 22 mm × 130-170 μm, square Au
643289 Gold coated glass cover slip 99.999% (Au), layer thickness 100 Å, diam. × thickness 15 mm × 130-170 μm Au
643297 Gold coated mica layer thickness 2000 Å, 99.999% (Au) Au
643246 Gold coated microscope slide layer thickness 1000 Å, 99.999% (Au) Au
643203 Gold coated microscope slide layer thickness 100 Å, 99.999% (Au) Au
643262 Gold coated silicon wafer 99.999% (Au), layer thickness 1000 Å, 99.99% (Ti) Au
900554   Gold coated slides layer thickness 100 nm, size 75 mm × 25 mm × 1 mm New  
667978   Gold Surface Cleaning solution