Fabrication of an electrochemical sensor based on gold nanoparticles functionalized polypyrrole nanotubes for the highly sensitive detection of l-dopa

Kannan, Ayyadurai; Radhakrishnan, Shankar

doi:10.1016/j.mtcomm.2020.101330

Cited by 19 publications

(10 citation statements)

References 62 publications

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“…This clearly shows that the Poly-ET film modified GCE has good sensitivity towards the oxidation of DA and PA. The values of limit of detection (LOD) and limit of quantification for DA and PA can be calculated using the following equations [40].…”

Section: Simultaneous Electrocatalytic Oxidation Of Da and Pa In A Mixture At Bare Gce And Poly-et/gcementioning

confidence: 99%

A Facile Fabrication of Poly‐ethionine Film on Glassy Carbon Electrode for Simultaneous and Sensitive Detection of Dopamine and Paracetamol

Kannan¹,

Seenivasan

Radhakrishnan

2021

Electroanalysis

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An electrochemical sensor based on poly‐ethionine (Poly‐ET) film modified glassy carbon electrode was developed for sensitive and simultaneous sensing of dopamine (DA) and paracetamol (PA). The electropolymerization of ethionine monomer was carried out to modify the electrode. The modified electrode was characterized by using scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The Poly‐ET/GCE exhibited excellent electrocatalysis towards the sensing of DA and PA. Poly‐ET/GCE showed a linear increase of current response with increase concentration of DA and PA ranging from 0.1 μM–60 μM and 0.1 μM–180 μM, respectively. The LODs were found to be 7 nM and 18 nM (S/N=3) for DA and PA, respectively. This electrochemical sensor was successfully utilized for the detection of DA and PA in pharmaceutical samples.

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Section: Simultaneous Electrocatalytic Oxidation Of Da and Pa In A Mixture At Bare Gce And Poly-et/gcementioning

confidence: 99%

A Facile Fabrication of Poly‐ethionine Film on Glassy Carbon Electrode for Simultaneous and Sensitive Detection of Dopamine and Paracetamol

Kannan¹,

Seenivasan

Radhakrishnan

2021

Electroanalysis

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“…In 2020, Kannan and Radhakrishnan 44 developed an electrochemical sensor based on GCE modified with polypyrrole (PPy) nanotubes and gold nanoparticles (AuNPs). The linear concentration range for L‐dopa was from 0.1 to 6.0 μmol/L with a detection limit of 0.075 μmol/L.…”

Section: Electrochemical Sensors For Determination Of L‐dopamentioning

confidence: 99%

“…The obtained results showed no change in the peak current response of L‐dopa. The spiked samples of human urine and drugs were used for analytical applications, showing a recovery percentage range from 99.0% to 102.4%, suggesting that the AuNP/PPy modified GC electrode is suitable for practical applications 44 …”

Section: Electrochemical Sensors For Determination Of L‐dopamentioning

confidence: 99%

Review. Electrochemical sensors used in the determination of L‐Dopa

Georgescu

Staden

2021

Electrochemical Science Adv

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This review is presenting the design and performance of some electrochemical sensors used for the determination of L‐dopa in real samples as reported in a series of relevant scientific papers published in the past 5 years. L‐dopa was intensively studied using electrochemical sensors with applications in the biomedical field, pharmaceutical field and food industry. The determination of L‐dopa is of great importance, due to the fact that it can cross the blood brain barrier (which dopamine can't) and then can be converted to dopamine. Thus, it can be used in treating some disease, such as Parkinson's. Because fast detective methods for L‐dopa determination are required, this paper focused on four types of electrochemical sensors, such as modified carbon paste electrodes, modified glassy carbon electrodes, modified screen‐printed electrodes and modified indium tin oxide electrodes. Each has its advantages and disadvantages and the appropriate sensor should be used depending on the type of application.

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“…The development of nanoscience and nanotechnology has allowed trials to apply different nanomaterials for the fabrication of chemically modified electrodes [24][25][26][27][28][29][30][31][32][33][34][35][36]. In recent years, various nanomaterials have been used singly or in composite form to modify electrodes [37][38][39][40][41][42][43][44][45][46][47]. The chemical modification of inert substrate electrodes offers significant advantages in the design and development of electrochemical sensors [48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

An electrochemical sensing platform based on a modified carbon paste electrode with graphene/Co3O4 nanocomposite for sensitive propranolol determination

Karami-Kolmoti

Zaeimbashi

2023

ADMET DMPK

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A simple and sensitive method for the determination of propranolol using a modified carbon paste electrode (CPE) with graphene/Co3O4 nanocomposite (Gr-Co3O4 NC/CPE) was presented. The electrochemical measurements of propranolol are studied using differential pulse voltammetry (DPV), cyclic voltammetry (CV) and chronoamperometry (CHA). The Gr-Co3O4 NC/CPE exhibits excellent catalytic activity towards the electrochemical oxidation of propranolol in phosphate buffer solution (PBS) of pH 7.0. The Gr-Co3O4 NC/CPE facilitates the determination of propranolol in the concentration range 1.0–300.0 μM and a detection limit and sensitivity of 0.3 μM. and 0.1275 μA/μM were achieved.

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Fabrication of an electrochemical sensor based on gold nanoparticles functionalized polypyrrole nanotubes for the highly sensitive detection of l-dopa

Cited by 19 publications

References 62 publications

A Facile Fabrication of Poly‐ethionine Film on Glassy Carbon Electrode for Simultaneous and Sensitive Detection of Dopamine and Paracetamol

A Facile Fabrication of Poly‐ethionine Film on Glassy Carbon Electrode for Simultaneous and Sensitive Detection of Dopamine and Paracetamol

Review. Electrochemical sensors used in the determination of L‐Dopa

An electrochemical sensing platform based on a modified carbon paste electrode with graphene/Co3O4 nanocomposite for sensitive propranolol determination

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