Pd@TTF Tailored Nanostructured Platform: Voltammetric Estimation of Ceftazidime

Tiwari, Preeti; Azad, Uday Pratap; Gupta, Sandeep; Prakash, Rajiv

doi:10.1002/slct.201700700

Cited by 4 publications

(2 citation statements)

References 55 publications

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“…The applications of advanced electrochemical techniques have allured considerable attention in modern analytical chemistry for the detection of biologically significant analytes . Electrochemical measurements are based on two important factors, in which the potential being related to qualitative properties and the current related to quantitative properties of the compound.…”

Section: Introductionmentioning

confidence: 97%

An Electrochemical Comparison of Single‐Walled and Multi‐Walled Carbon Nanotubes Utilizing Paeonol as the Model Drug

Mane

Chatterjee

2018

ChemistrySelect

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Herein, we report the development of a selective and highly sensitive electrochemical sensing of paeonol at carbon nanotubes modified glassy carbon electrode (GCE). Trace amount of paeonol was quantitated by employing square wave voltammetry technique for the first time based on the electrochemical oxidation of the analyte at the modified electrodes. The single walled carbon nanotubes (SWNTs) based sensor exhibited higher recognition ability of paeonol in comparison with the multi walled carbon nanotubes (MWNTs) based sensor. The linear dynamic range was found to be 100 nM – 25 μM for SWNTs modified GCE and 1–25 μM for MWNTs modified GCE. The sensitivity at SWNTs modified GCE was ∼ 3.5 times more than that at MWNTs modified GCE. The limit of detection was estimated to be 9.57 nM and 0.63 μM corresponding to SWNTs and MWNTs modified GCE respectively. The influence of experimental parameters affecting sensor response was optimized. The stability, reproducibility tests and interference effects were demonstrated to confirm the reliability of the proposed sensor. The applicability of the developed sensor was successfully assessed through convenient measurements of paeonol in biological samples and Cortex moutan which exhibits anticancer effect.

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Section: Introductionmentioning

confidence: 97%

An Electrochemical Comparison of Single‐Walled and Multi‐Walled Carbon Nanotubes Utilizing Paeonol as the Model Drug

Mane

Chatterjee

2018

ChemistrySelect

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“…Guo et al studied using cyclic voltammetry AuNP systems with the TTF derivatives being directly linked to the gold surface through the sulfide bond, omitting any spacers [ 18 , 19 ]. The electrochemical behavior of TTF on other NP materials, such as PdNP [ 20 ] or PbS NP [ 21 ], was also studied.…”

Section: Introductionmentioning

confidence: 99%

Electrochemistry of Tetrathiafulvalene Ligands Assembled on the Surface of Gold Nanoparticles

Janoušek

Rybáček²,

Budêšínský³

et al. 2022

Molecules

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The synthesis of a tetrathiafulvalene (TTF) derivative, S-[4-({4-[(2,2′-bi-1,3-dithiol-4-ylmethoxy)methyl] phenyl}ethynyl)phenyl] ethanethioate, suitable for the modification of gold nanoparticles (AuNPs), is described in this article. The TTF ligand was self-assembled on the AuNP surface through ligand exchange, starting from dodecanethiol-stabilized AuNPs. The resulting modified AuNPs were characterized by TEM, UV-Vis spectroscopy, and electrochemistry. The most suitable electrochemical method was the phase-sensitive AC voltammetry at very low frequencies of the sine-wave perturbation. The results indicate a diminishing electronic communication between the two equivalent redox centers of TTF and also intermolecular donor–acceptor interactions manifested by an additional oxidation wave upon attachment of the ligand to AuNPs.

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