Preparation of glassy carbon electrode modified by hydrophobic gold nanoparticles and its application for the determination of ethamsylate in the presence of cetyltrimethylammonium bromide

Yang, Gongjun; Qu, Xi-Long; Shen, Ming; Wang, Chengyin; Qu, Qishu; Hu, Xiaoyun

doi:10.1016/j.snb.2007.06.005

Cited by 22 publications

(7 citation statements)

References 29 publications

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“…Various pesticides, e.g. atrazine, 562 methyl parathion, 563,564 paraoxon ethyl, 565 carbofuran, 564 phoxim; 564 and different drugs such as paracetamol, 504,566 atenolol, 567 prednisolone, 568 ethamsylate, 569 were also detected using AuNP-modified electrodes. Recently, Raj has detected isoniazid, a popular anti-tuberculosis drug, by chemisorbing 70–100 nm AuNPs on a sol-gel-derived 3D silicate network with a detection sensitivity of 0.1 nM.…”

Section: Electrical and Electrochemical Sensingmentioning

confidence: 99%

Gold Nanoparticles in Chemical and Biological Sensing

et al. 2012

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Section: Electrical and Electrochemical Sensingmentioning

confidence: 99%

Gold Nanoparticles in Chemical and Biological Sensing

et al. 2012

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“…Amine-capped gold nanoparticles can be adsorbed strongly onto the surface of glassy carbon electrode surface [36]. It is estimated that amine-capped gold nanoparticles can also be adsorbed onto the inner surface of a fused-silica capillary column as a coating material.…”

Section: Introductionmentioning

confidence: 99%

Open‐tubular capillary electrochromatography using a capillary coated with octadecylamine‐capped gold nanoparticles

Zhang

Shen

et al. 2008

Electrophoresis

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Octadecylamine-capped gold nanoparticles (ODA-Au-NPs) were prepared and characterized by using UV-Vis adsorption spectrum, transmission electron chromatography (TEM), SEM, and FT-IR. A simple but robust hydrophobic coating was easily developed by flushing a capillary with a solution of ODA-Au-NPs, because the positive charges were carried by the nanoparticles which strongly adsorb to the negatively charged inner surface of a fused-silica capillary via electrostatic and hydrophobic interactions. The chromatographic characteristics of the coated capillary was investigated by varying the experimental parameters such as buffer pH, buffer concentration, and percentage of organic modifier in the mobile phase. The results show that (i) resolution between thiourea and naphthalene is almost the same when comparing the electrochromatograms obtained using pH 7 buffer as mobile phase after and before the capillary column was operated using pH 11 and 3 mobile phase; (ii) no significant changes in retention time and deterioration in peak efficiency were found after 60 runs of test aromatic mixtures; and (iii) column efficiency up to 189 000 theoretical plates/meter for testosterone was obtained. All of the results indicated that the coating could act as a stable stationary phase for open tubular CEC as well as for bioanalysis.

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“…The hydrophobic interaction between ESL and hydrophobic chain of CTAB was more dominant than the static interaction with the polar head Handbook of Nanoelectrochemistry DOI 10.1007/978-3-319-15207-3_38-1 # Springer International Publishing Switzerland 2015 group, thus the overvoltage was reduced and the electron transfer rate was enhanced. Therefore, the electrochemical oxidation of ESL was facilitated in the presence of cationic surfactant CTAB, and very low detection limit was obtained, 3.5 nM [113].…”

Section: Sam Of Surfactant On Polymers/nanometallic Structuresmentioning

confidence: 99%

Self-Assembled Monolayers on Nano-structured Composites for Electrochemical Sensing Applications

Atta¹,

El-Ads²,

Galal³

2015

Handbook of Nanoelectrochemistry

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Self-assembled monolayer (SAM) represents one of the methods to precisely modify surface structures in the nanoscale dimension. It has opened up a new era of exploration and has a profound impact on sensors and biosensors due to its unique properties. Different self-assemblies will be considered in this chapter: SAM of metallic nanoparticles on polymeric film, SAM of surfactant on polymeric film, and SAM of S-containing compounds on nanometallic films. The main goal of this chapter is to present comprehensive collection of the recent achievements in this area. Several issues will be discussed including the morphology, sensitivity, selectivity, stability, and electrochemical properties of the sensor.

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Preparation of glassy carbon electrode modified by hydrophobic gold nanoparticles and its application for the determination of ethamsylate in the presence of cetyltrimethylammonium bromide

Cited by 22 publications

References 29 publications

Gold Nanoparticles in Chemical and Biological Sensing

Gold Nanoparticles in Chemical and Biological Sensing

Open‐tubular capillary electrochromatography using a capillary coated with octadecylamine‐capped gold nanoparticles

Self-Assembled Monolayers on Nano-structured Composites for Electrochemical Sensing Applications

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