We have developed innovative and efficient strategy for the preparation and improvement of sensing performance of well-ordered titania nanotubes. We have synthesized different materials based on titania nanotubes using cost-effective techniques. The morphological and structural analyses of the prepared materials have been carried out. The sensing properties of the structures have been studied t...

a new schiff base 2-aminothiophenol furfural self assembled monolayer (sam) has been fabricated on a bare gold electrode as a novel sensor for determination of dopamine. electrochemical impedance spectroscopywas utilized to investigate the properties of the au 2-aminothiophenol furfural self assembled monolayermodified electrode (au atf sam-me) using the [fe(cn)6]3-/4- redox couple. the electro...

Over the past several years, various fluorinated self-assembled monolayers (F-SAMs) on gold have been used to study the interfacial properties of fluorocarbon interfaces. This review focuses on the structures of selected F-SAMs and describes how the structures relate to various interfacial properties, such as wettability, friction, X-ray induced damage and ion-surface collisions. 2003 Elsevier ...

We present results from nanometer-scale tunnel junctions fabricated using organic self-assembled monolayers ~SAMs! as tunnel barriers. Single junctions have resistances consistent with tunneling through a single layer of molecules. In several devices, a gold nanoparticle nucleated within the SAM barrier. Such samples allow a sensitive test of mechanical stability—some are sufficiently stable to...

We have investigated the effects of dipping time, solution concentration and solvent type on the formation of self-assembled monolayers with aminosiloxane molecules (i.e., N-(3 trimethoxysilylpropyl)diethylenetriamine (TPDA)) on the Si(001) surface. Studies performed with an ellipsometer showed that monolayers with a thickness of about 1.2 nm were formed when the dipping time is about 2 h, whil...

We show how the mechanism of electron transfer through molecules can be switched between different regimes by using Hg-based metal–molecules–metal junctions. The junctions are easy to assemble and allow for hosting of self-assembled monolayers (SAMs) of a large variety of molecular structures. In this paper, we compare results from studies of charge transport across two different types of junct...

The formation process of self-assembled monolayer (SAM) of decanethiol (C10SH) on Au(111) single crystal electrode has been investigated for wide range of C10SH concentration (0.1 M ∼ 500 M) and temperature (253 K ∼ 298 K). The amount and quality of C10SH SAM were determined from area and position, respectively, of reductive desorption peak of the SAM modified Au(111) electrode measured in 0....

Article history: 10 Received 12 August 2008 11 Received in revised form 19 January 2009 12 Accepted 22 January 2009 13 Available online xxxx 16 17