Electrocatalytic oxidation of salicylic acid at a carbon paste electrode impregnated with cerium-doped zirconium oxide nanoparticles as a new sensing approach for salicylic acid determination

Alizadeh, Taher; Nayeri, Sahar

doi:10.1007/s10008-018-3907-1

Cited by 23 publications

(10 citation statements)

References 47 publications

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“…In the current study, Aloe vera L. ( Aloe barbadensis Miller), was selected as a model plant based on i) the interest of the study of the defense pathways of the Aloaceae family [42–44] and ii) by operational reasons because its succulent, non‐fibrous leaves permit the easy insertion of microelectrodes either in the outer green rind and inner clear pulp. The current approach exploits the electroactive character of H 2 O 2 , SA [45–47] and JA [48]. Our results indicate a variation with time of the voltammetric response attributable to SA and JA transductors (or directly related electroactive compounds) and H 2 O 2 that can be associated to the biochemical response to the mechanical stress produced by the insertion of the electrodes.…”

Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

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In vivo Electrochemical Monitoring of Signaling Transduction of Plant Defense Against Stress in Leaves of Aloe vera L.

2020

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In situ recording of the voltammetric response of Aloe vera L. leaves using graphite and platinum microelectrodes inserted in the subcuticular region is described. The plant response against the mechanical stress results in changes of the voltammetric signals associated to signal transduction compounds salicylic and jasmonic acids and hydrogen peroxide, which were separately monitored. A kinetic model is proposed to describe the time variation of the respective voltammetric signatures, denoting the possibility of in vivo electrochemical monitoring of biochemical processes in plants. The obtained results suggest that two defense pathways with different participation of ROS are operative.

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Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

In vivo Electrochemical Monitoring of Signaling Transduction of Plant Defense Against Stress in Leaves of Aloe vera L.

2020

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“…Besides biosensing strategies, electro-catalytic reactions on metallic and carbon electrodes have also been characterized for SA quantification. Cerium-doped zirconium oxide (Ce/ZrO 2 ) was introduced as an electrocatalyst for the electro-oxidation of SA in a recent work, and Square wave voltammetry was used to quantify the analytical signal in the concentration range of 5 µM to 1000 µM with LOD of 1.1 µM [26]. In another work, a paper-based electro-analytical device for in-situ determination of SA in tomato leaves was reported.…”

Section: Related Workmentioning

confidence: 99%

“…The interfering responses of the following chemical species were recorded: glucose, citric acid, uric acid, malic acid, abscisic acid (ABA), succinic acid, methyl-jasmonate (MeJA) and indole-3-acetic acid (IAA). These biochemicals were selected based on prior studies reported in literature [26], [27], [34]. Figure 8 presents the DPV responses recorded for key known compounds that may be present in the plant/agricultural samples.…”

Section: B Sa Sensor Response and Calibrationmentioning

confidence: 99%

A plug-and-play type field-deployable bio-agent free salicylic acid sensing system

Kashyap¹,

Kumar²

2021

Preprint

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Salicylic acid (SA) is a primary phytohormone released in response to stress, particularly biotic infections in plants. Monitoring SA levels may provide a way for early disease detection in crops providing a way for applying effective measures for reducing agricultural losses while increase our agricultural efficiency. Additionally, SA is an important chemical used extensively in the pharmaceutical and healthcare industry due to its analgesic and anti-inflammatory properties. Developing a fast and accurate way for monitoring SA levels in human serum can have a life-saving impact for patients suffering from overdosing and/or mis-dosing. In this work, we present a low-cost, portable, and field-deployable electrochemical SA sensing system aimed towards achieving the above-mentioned goals. The developed sensor consists of a plugand-play type device equipped with specialized designed high accuracy sensing electronics and a novel procedure for robust data analysis. The developed sensor exhibits excellent linearity and sensitivity and selectivity. The practical applicability of the developed sensor was also demonstrated by measuring SA levels in real samples with good accuracy.

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“…Some general electrodes including glassy carbon, [1–5] gold, [6,7] platinum, [8–10] boron‐doped diamond [11,12] and carbon paste [13–16] have been currently applied in this regard. Also, modification of these electrodes with various organic, inorganic and biological modifiers has also extended the applicability of these electrodes [17,18] . However, it has been shown that the above‐described electrodes cannot be employed for the electrochemical determination of the wide range of biologically important compounds due to weak signals, created by the target agents on the electrodes.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a New Copper/Mercury‐Based Amalgam Electrode with Minimal Mercury Content and Its Application for the Determination of Azathioprine in Biological Fluids

2021

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Herein, a new copper/mercury‐based amalgam electrode with 45 wt % copper was introduced. An amalgam electrode with the lowest mercury content among all amalgam electrodes, reported so far,was introduced. The method of making and activating the electrode was investigated and the working conditions were established. The as‐prepared electrode was employed to determine azathioprine(Aza) using differential pulse adsorptive stripping voltammetry (DPASV) method. The required factors were considered for the electrode voltammetric response to evaluate and optimize Aza level. The proper response of this electrode was obtained in Brinton‐Robinson buffer(BRB) (pH 2) at −0.15 V for 200 seconds. The electrode response to the target compound was linear in the concentration range from 0.04 to 1.0 μM. The detection limit was found to be about 1.6×10−8 M. The relative standard deviation (RSD) for 5 determinations was obtained to be about 3.5 % (the average of RSDs calculated for all concentrations, represented in the calibration curve). The method was successfully applied for Aza determination in plasma and urine samples which led to satisfactory results. It can be concluded that the presence of high levels of potential interfering agents such as ascorbic acid and cysteine did not affect the Aza determination.

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Electrocatalytic oxidation of salicylic acid at a carbon paste electrode impregnated with cerium-doped zirconium oxide nanoparticles as a new sensing approach for salicylic acid determination

Cited by 23 publications

References 47 publications

In vivo Electrochemical Monitoring of Signaling Transduction of Plant Defense Against Stress in Leaves of Aloe vera L.

In vivo Electrochemical Monitoring of Signaling Transduction of Plant Defense Against Stress in Leaves of Aloe vera L.

A plug-and-play type field-deployable bio-agent free salicylic acid sensing system

Preparation of a New Copper/Mercury‐Based Amalgam Electrode with Minimal Mercury Content and Its Application for the Determination of Azathioprine in Biological Fluids

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