Alkanethiol monolayers

Apart from domain boimdaries, some of the defects in alkanethiol monolayers (pitholes) are created by the thiol itself 159] by etching processes. It was found that the solvent used for preparation also has some effect on the resulting defect density. 

Li W, Virtanen J A and Penner R M 1995 Self-assembly of n-alkanethiolate monolayers on silver nanostructures protective encapsulations Langmu/r 11 4361... 

Hostetler M J, Stokes J J and Murray R W 1996 Infrared speotrosoopy of three-dimensional self-assembled monolayers n-alkanethiolate monolayers on gold oluster oompounds Langmuir M 3604... 

Badia, A., Demers, L., Guccia, L., Morin, E. and Lennox, R.B. (1997) Structure and Dynamics in Alkanethiolate Monolayers Self-Assembled on Gold Nanoparticles A DSC, ET-IR, and Deuterium NMR Study. Journal of the American Chemical Society, 119, 2682-2692. 

Figure 16.7 Schematic drawing of the asymmetric electrode pattern. The gold electrode was covered with a Fc-alkanethiol monolayer. The wetting of the gold electrode was switched from wetting to repulsive and vice versa by changing the electrochemical potential of the electrode.

Tarlov MJ, Burgess DRF Jr, Gillen G (1993) UV photopatteming of alkanethiolate monolayers self-assembled on gold and silver. J Am Chem Soc 115 5305-5306... 

C.A. Widrig, C. Chung, and M.D. Porter, The electrochemical desorption of n-alkanethiol monolayers from polycrystalline gold and silver electrodes. J. Electroanal. Chem. 310, 335-359 (1991). 

Z.Q. Feng, S. Imabayashi, T. Kakiuchi, and K. Niki, Electroreflectance spectroscopic study of the electron transfer rate of cytochrome c electrostatically immobilized on the w-carboxyl alkanethiol monolayer modified gold electrode. J. Electroanal. Chem. 394, 149-154 (1995). 

Wold DJ, Frisbie CD (2000) Formation of metal-molecule-metal tunnel junctions microcontacts to alkanethiol monolayers with a conducting AFM tip. J Am Chem Soc 122 (12) 2970-2971... 

Wang W, Lee T, Reed MA (2003) Mechanism of electron conduction in self-assembled alkanethiol monolayer devices. Phys Rev B 68(3) 035416... 

Cygan MT, Dunbar TD, Arnold JJ, Bumm LA, Shedlock NF, Burgin TP, Jones L II, Allara DL, Tour JM, Weiss PS (1998) Insertion, conductivity, and structures of conjugated organic oligomers in self-assembled alkanethiol monolayers on Au 111). J Am Chem Soc 120 2721-2732... 

Effects on the Adhesion and Friction between Alkanethiol Monolayers Molecular Dynamics Simulations. 

For the determination of these compounds a binding inhibition immunoassay, consisting of the competitive immunoreaction of the unbound antibody present in an analyte-antibody mixture with the hapten derivative immobilized at the sensor surface, has been applied. With the aim of assuring the regeneration and reusability of the surface without denaturation of the immobilized molecule, the formation of an alkanethiol monolayer was carried out to provide covalent attachment of the ligand to the functionalized carbodiimide surface in a highly controlled way. For DDT, the assay sensitivity was evaluated in the 0.004 - 3545 pg/l range of pesticide concentration by the determination of the limit of detection 0.3 pg/1 and the I50 value 4.2 pg/1. 

AUds S, Cao C, Cheng HP, Krause JL (2009) Molecular dynamics simulations of Au penetration through alkanethiol monolayers on the Au(lll) surface. J Phys Chem C 113 6360-6366... 

Walker AV, Tighe TB, Cabarcos OM, Reinard MD, Haynie BC, Uppili S, Winograd N, Allara DL (2004) The dynamics of noble metal atom penetration through methoxy-terminated alkanethiolate monolayers. J Am Chem Soc 126 3954—3963... 

Nagy G, Walker AV (2006) Dynamics of the interaction of vapor-deposited copper with alkanethiolate monolayers bond insertion, complexation, and penetration pathways. J Phys ChemB 110 12543-12554... 

Ge Y, Weidner T, Ahn H, Whitten JE, Zhamikov M (2009) Energy level pinning in self-assembled alkanethiol monolayers. J Phys Chem C 113(ll) 4575-83... 

Ahn H, Whitten JE (2009) Potassium deposition on a thiophene-terminated alkanethiol monolayer. J Electron Spectros Relat Phenomena 172(1-3) 107-113... 

Fisher GL, Hooper AE, Opila RL, Allara DL, Winograd N (2000) The interaction of vapor-deposited A1 Atoms with CO2H groups at the surface of a self-assembled alkanethiolate monolayer on gold. J Phys Chem B 104(14) 3267-3273... 

McGuiness CL, Blasini D, Masejewski JP, Uppili S, Cabarcos OM, Smilgies D, Allara DL (2007) Molecular self-assembly at bare semiconductor surfaces characterization of a homologous series of n-alkanethiolate monolayers on GaAs(OOl). ACS Nano l(l) 30-49... 

Structures of SA alkanethiol monolayers generated on gold substrates are better understood than the chemistries involved in their formation. Electron diffraction and FTIR measurements, together with computer simulations, have provided a picture of a SA monolayer in which the axes of the alkyl chains of the surfactants are tilted approximately 30° with respect to the surface normal of the substrate and the sulfur atoms reside in the three-fold hollows of the gold (111) surface (Fig. 25) [68, 207-210, 230, 240]. The use of scanning tunneling micro-... 

Fig. 28. Schematic diagram of an all-trans chain in an n-alkanethiols monolayer on a surface. The coordinate system used to define the orientations of the chain, the cant angle tx, and the chain twist fi are shown along with their relationship to the surface coordinates [218]...

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