Electrochemical impedance spectroscopy study of mixed thiol monolayers on gold

Influence of another, ruthenium containing, electroactive component on the apparent heterogeneous electron transfer rate constant of a ferrocene containing molecular wire in a Self-Assembled Monolayer of 11-hydroxyundecanethiol on gold

“…Indeed, it is known that redox active species, once included in a SAM can present a large variation of the kinetic response mostly due to local microenvironments. Among the most common sources of deviation for the rate constant are redox active thiol molecules located at grain boundaries of SAM's nanocrystalline domains [7,19]. As all thiols in these disordered zones are also rapidly exchanged under a condition similar to the SAM formation's one, treatment of the mixed monolayer with an ''inert'' thiol ethanolic solution provides a way to strip these defective redox active molecules off the grain boundaries.…”

Development of an oligo(ethylene glycol)-based SPR immunosensor for TNT detection

“…However, as longer-chain thiol has higher energy of adsorption, displacement of adsorbed shorter-chain thiol on the surface by the longer-chain thiol may occur when the Au sensor chip was immersed for a long period (Xing et al, 2005). In this study, a goldcoated SPR chip was firstly modified with aromatic alkanedithiol to form single component SAMs and then mixed solutions of OEG linker reagents were attached to the SAMs with various ratios instead of making mixed SAMs.…”

Atmospheric corrosion of fire-gilded bronze: corrosion and corrosion protection during accelerated ageing tests

“…On copper and copper alloys, surface chemisorption of PropS-SH through metal thiolate (Me-S-C) [27]and metal siloxane (Me-O-Si) bonds [35] ensures the desirable adhesion to the metal substrate. Given the affinity of sulphur-containing compounds to transition metals, such as copper and also gold [36][37][38][39], PropS-SH was deemed to produce protective coatings for gilded bronze too.…”