Characterization of the organic molecules deposited at gold surface by the electrochemical reaction of diazonium salts

Khoshroo, Maryam; Rostami, Abbas Ali

doi:10.1016/j.jelechem.2010.06.016

Cited by 21 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, we need a surface that combines the following four properties: 1) an ability to attach covalently a DNA molecule by one end, 2) a conductivity suitable for surface modification, 3) a compatibility with QCM monitoring, and 4) a roughness as low as possible to be compatible with AFM imaging. [32,33] Moreover, the frequency variation of the Au quartz crystal showed a unique mass intake during the first sweep and stabilized at a frequency of Df = 75 AE 5 Hz (Figure 1 b), near to a monolayer of organic grafting. Therefore our choice was to use a gold surface (i.e.…”

Section: Surface Modification By Electrochemical Reduction Of An Arylmentioning

confidence: 96%

“…due to the presence of a grafted organic layer. [32,33] Moreover, the frequency variation of the Au quartz crystal showed a unique mass intake during the first sweep and stabilized at a frequency of Df = 75 AE 5 Hz (Figure 1 b), near to a monolayer of organic grafting. After electrochemical modification, the layer was activated by the application of a solution of PCl 5 (5 mm) in CH 2 Cl 2 to form the final layer of ArSO 2 Cl.…”

Section: Surface Modification By Electrochemical Reduction Of An Arylmentioning

confidence: 96%

See 1 more Smart Citation

Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4‐28 Peptide Inhibitor

et al. 2014

View full text Add to dashboard Cite

The interaction of human Rad51 protein (HsRad51) with single-stranded deoxyribonucleic acid (ssDNA) was investigated by using quartz crystal microbalance (QCM) monitoring and atomic force microscopy (AFM) visualization. Gold surfaces for QCM and AFM were modified by electrografting of the in situ generated aryldiazonium salt from the sulfanilic acid to obtain the organic layer Au-ArSO3 H. The Au-ArSO3 H layer was activated by using a solution of PCl5 in CH2 Cl2 to give a Au-ArSO2 Cl layer. The modified surface was then used to immobilize long ssDNA molecules. The results obtained showed that the presence of adenosine diphosphate promotes the protein autoassociation rather than nucleation around DNA. In addition, when the BRC4-28 peptide inhibitor was used, both QCM and AFM confirmed the inhibitory effect of BRC4-28 toward HsRad51 autoassociation. Altogether these results show the suitability of this modified surface to investigate the kinetics and structure of DNA-protein interactions and for the screening of inhibitors.

show abstract

Section: Surface Modification By Electrochemical Reduction Of An Arylmentioning

confidence: 96%

Section: Surface Modification By Electrochemical Reduction Of An Arylmentioning

confidence: 96%

Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4‐28 Peptide Inhibitor

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The equivalent circuits for bare GC and B3MP-GC are shown inset of Figure 5(a) and (b), respectively. An electrolyte solution resistance (Rs), a constant phase element (CPE), chargetransfer resistance (Rct) and the Warburg resistance (w) resulting from the diffusion of ions from the bulk of the electrolyte to the interface are presented in this equivalent circuit [22]. CPE and Rct values were found by fitting the impedance spectra using this equivalent circuit.…”

Section: Eis Characterization Of the B3mp-gc Surfacementioning

confidence: 99%

A new glassy carbon surface covered with 1-(2-benzothiazolyl)-3-methyl pyrazol-5-one and its characterization

Uzun¹

2019

Sakarya University Journal of Science

View full text Add to dashboard Cite

1-(2-benzothiazolyl)-3-methyl pyrazol-5-one (B3MP) was electrochemically covered on a glassy carbon (GC) electrode surface in nonaqueous medium. Properties of B3MP film were investigated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and fourier transform infrared spectroscopy (FTIR). The number of electron transferred was calculated as 0.66 indicating that a single electron transfer process was carried out and the modification mechanism of B3MP via electrochemical oxidation on the GC electrode was suggested.

show abstract

“…Hypophosphorous acid, sodium nitrite and all the chemicals were obtained from Sigma-Aldrich, Saint Quentin Fallavier (France). were synthesized from the corresponding anilines by diazotization as described by Khosroo and Rostami [44]. Briefly, the corresponding para-aniline was dissolved in HBF 4 .…”

Section: Materials and Reagentsmentioning

confidence: 99%

Surface functionalization of cyclic olefin copolymer with aryldiazonium salts: A covalent grafting method

Brisset

Vieillard

Berton

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Characterization of the organic molecules deposited at gold surface by the electrochemical reaction of diazonium salts

Cited by 21 publications

References 37 publications

Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4‐28 Peptide Inhibitor

Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4‐28 Peptide Inhibitor

A new glassy carbon surface covered with 1-(2-benzothiazolyl)-3-methyl pyrazol-5-one and its characterization

Surface functionalization of cyclic olefin copolymer with aryldiazonium salts: A covalent grafting method

Contact Info

Product

Resources

About