Molecular dynamics simulations of friction in self-assembled monolayers
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Cited by (79)
Characterizing self-assembled monolayers on gold nanoparticles
2017, Bioconjugate ChemistryNanoscale mechanical tailoring of interfaces using self-assembled monolayers
2016, Mechanics of MaterialsCitation Excerpt :A few studies have focused on using MD techniques to probe the constitutive response of SAMs. For example, in Tupper et al. (1994) and Tupper and Brenner (1994b), MD was used to investigate the effect of the substrate roughness on the compressive response of hexadecanethiol on gold and the friction between SAMs. Siepman and McDonald (1993) studied the mechanical relaxation of an alkanethiol SAM on gold subjected to compression.
Friction reducing behavior of stearic acid film on a textured aluminum substrate
2013, Applied Surface ScienceCitation Excerpt :This might be attributed to the fact that stearic acid formed molecular assemblies in which one end of the long-chain molecules is attached to the substrate surface by COOH group [22]. The alkyl chains may thus have a significant freedom of swing and rearrange along the sliding direction under shear stress [23], and therefore yield a smaller resistance. It is noted that aluminum after chemical etch or coated by stearic acid film show better friction-reducing properties.
Influence of chain ordering on frictional properties of self-assembled monolayers (SAMs) in nano-lubrication
2012, Advances in Colloid and Interface ScienceCitation Excerpt :These additional excitation modes absorb energy efficiently during the sliding process, leading to higher friction [72,122,137,139]. Although scanning probe microscopy techniques such as the SFM, AFM, and IFM can provide tremendous details on the adhesion and friction behaviors of SAMs at the molecular scales, interpretation of results from experimental investigations is sometimes difficult due to the lack of understanding on the fundamental processes involved in these measurements [140,141]. To this end, atomistic computer simulations provide a powerful, and in some cases essential tool for understanding the molecular behaviors of SAMs.
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