We report the design and characterization of a metal ion-imidazole self-assembled monolayer on a gold electrode. The resultant monolayer is well-suited for direct immobilization of histidine and methylene blue-modified peptides.

, Microcontact printing (PCP), one of the non-photolithographic techniques that make up "soft lithography" (Xia and Whitesides 1998), uses an elastomeric stamp to generate two-dimensional patterns by print* ing the molecules of an "ink" onto the surface of a solid substrate. In its most common configuration, the stamp is fabricated from an elastomeric polymer, poly(dimethylsiloxane) (PDMS), the...

Molecular dynamics simulation is performed to study the growth mechanism of self-assembled monolayer in the AFM tip-assisted soft nanolithography such as in dip-pen nanolithography. We investigate how the droplet created around the tip spreads out to become a monolayer on the substrate. The previous diffusion model assumes that molecules diffuse on top of molecules already adsorbed on the subst...

We report on the effects of monolayer (ML) thick skin-like octadecanethiol (ODT, CH3[CH2]17SH) on type-II InAs/GaSb MWIR photodetectors. Circumventing the ageing effects of conventional sulfur compounds, we use ODT, a self-assembling, long molecular chain headed with a sulfur atom. Photodiodes coated with and without the self-assembled monolayer (SAM) ODT were compared for their electrical and ...

We have measured W 4f7/2 core-level photoemission spectra from W(110) in the presence of Pd overlayers for coverages up to ∼1 pseudomorphic monolayer (ML). At coverages close to 0.05 ML a striking change in the W core-level spectrum is observed, which we interpret as indicating a long-range lateral effect of 2D Pd islands upon the W electronic structure in both the first and second W layers. As...

The spontaneous adsorption of organic molecules on a variety of planar and nonplanar substrates, that is, self assembly, can generate films just one molecule thick. These nanoscale, self-assembled monolayer (SAM) films have been extensively used to engineer surfaces with well-defined properties. Their utility has been demonstrated in a wide range of applications, including wetting, adhesion, lu...

We have prepared a surface-grafted phospholipid monolayer by in situ polymerization carried out at the interface between a pre-assembled phospholipid monolayer and a methacryloyl-terminated substrate. The phospholipid containing an acryloyl moiety, 1-stearoyl-2-[12-(acryloyloxy)-dodecanoyll-sn-glycero-3-phosphocholine (acryloyl-PC), was pre-assembled by vesicle fusion onto methacryloyl-terminat...