Electrocatalytic studies of Cytochrome c functionalized single walled carbon nanotubes on self-assembled monolayer of 4-ATP on gold

Review: Carbon nanotube based electrochemical sensors for biomolecules

“…Adding SWCNT to the nanocomposite increased the kinetics and hydrogen peroxide was detected with a LOD of 0.8 M. Similarly, collagen polymers were used to immobilize MWCNT and myoglobin [78]. Hydrogen peroxide was detected with a linear range of 0.6-39 M. Nagaraju et al used self-assembled monolayers of 4-aminothiophenol on gold electrodes to detect hydrogen peroxide with immobilized cytochrome C [79]. Electron transfer kinetics were about three orders of magnitude faster with SWCNT in the self-assembled monolayer than without, indicating nanotubes increased the direct electron transfer.…”

In Situ STM Evidence for the Adsorption Geometry of Three N-Heteroaromatic Thiols on Au(111)

“…Self-assembly or self-organization is a natural and spontaneous process − and plays an important role in the bottom-up strategy used in nanofabrication. , Self-assembled monolayers (SAMs) are of major interest in the fields of electronic devices, molecular recognition, corrosion inhibition, and biosensors. − The SAMs of thiols on gold, in particular, on the Au(111) surface, are the most intensively investigated systems. Alkanethiol monolayers on gold have so far been extensively studied under different conditions, such as ultrahigh vacuum, air, and solution, , so that the general mechanism of the system is now relatively well understood. − As a crucial issue, several recent studies have demonstrated that the SAM structures, such as domain size and defect density, depend strongly on the subtle chemical structural difference on the alkanethiols, allowing the possibility to modulate the SAM structures, which could further affect the properties of electronic devices based on thiol SAMs …”

Simultaneous determination of epinephrine and uric acid at a gold electrode modified by a 2-(2,3-dihydroxy phenyl)-1, 3-dithiane self-assembled monolayer

“…have led to the evolution of biomolecular electronics [1]. The inherent characteristics of biomolecules including self-assembly and molecular recognition have made these attractive for applications to bioelectronics [2][3][4][5][6]. The bioelectronic devices deal with the integration of (bio) molecular materials with solid-state devices, including the use of (bio) molecular materials as components.…”