Amperometric determination of dopamine based on an interface platform comprising tetra-substituted Zn2+ phthalocyanine film layer with embedment of reduced graphene oxide

Pari, Malathesh; Reddy, K. R. Venugopala; Fasiulla,; K.B, Chandrakala

doi:10.1016/j.sna.2020.112377

Cited by 15 publications

(4 citation statements)

References 38 publications

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“…The AuNP modification process was easily promoted by a few potential cycles. The characterization showed both uniform distribu- TBABr/SDS•AuNPs/GO/GCE 0.02-1.0 0.01 [58] GCE-PPI-AuNPs 0.1-125 0.16 [59] AuNPs/1T-MoS 2 /GCE 0.2-80 0.16 [60] GCE/rGO−Zn(II)TPEBiPc 0.05-0.8 0.0016 [61] GCE-ERGO/polyCoTAPc 2.0-100 0.095 [62] Au-IPA-AmGQD-CoTCPhOPc 1.0-50 0.20 [63] CoTGPc/GCE 2-12 1.0 [64] The decrease in the sensitivity to DA concentration higher than 10 µmol/L can be ascribed to kinetic limitation, being related to irreversible adsorption of the DA molecules at electrode surface [65,66]. Indeed, the SPCE/p-NiTsPc/AuNP even in a solution in the absence of DA also showed DA peak oxidation (Figure S7) and the SERRS spectra also showed the DA vibration at 1483 cm −1 .…”

Section: Discussionmentioning

confidence: 99%

Nickel Tetrasulfonated Phthalocyanine Decorated with AuNP as a Double Sensorial Platform: SERS and Electrochemical

et al. 2023

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The development of materials for multiple applications is a challenge in the fields of technology and materials science. In this work, screen-printed carbon electrodes (SPCEs) were modified with an electropolymerized nickel tetrasulfonated phthalocyanine film (polymeric-NiTsPc = p-NiTsPc) decorated with gold nanoparticles (AuNP). The modified SPCEs were applied as a sensing platform for analysis via electrochemical and surface-enhanced Raman scattering (SERS) spectroscopy. The SPCEs modification was based on the potential cycling firstly in a NiTsPc solution and then in an AuHCl4 solution, with the fast formation of spherical AuNP through the p-NiTsPc film surface. The modified electrode based on SPCE/p-NiTsPc/AuNP showed a synergetic effect in voltammetric measurements in [Fe(CN)6]3−/[Fe(CN)6]4− probe as well as an electrocatalytic effect in the presence of dopamine. The calibration curve towards dopamine detection presented a linear range from 1 to 10 μmol/L with a limit of detection of 0.73 μmol/L. The spectroelectrochemistry measurements combining SERS and the applied potential of −60 mV showed that the SPCE/p-NiTsPc/AuNP and SPCE/AuNP can be powerfully used as a dual sensing platform for dopamine detection. In the case of SPCE/p-NiTsPc/AuNP, p-NiTsPc plays an important role in facilitating electron transfer during the electrochemical reaction, while AuNP is crucial for obtaining SERS signals for dopamine detection.

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Section: Discussionmentioning

confidence: 99%

Nickel Tetrasulfonated Phthalocyanine Decorated with AuNP as a Double Sensorial Platform: SERS and Electrochemical

et al. 2023

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Section: Catecholaminesmentioning

confidence: 96%

“…The gap was enough for the simultaneous determination of both substances in the same media [118]. Graphene quantum dots and reduced graphene oxide were also used as electron amplifiers in determination studies of dopamine, performed by Ndebele et al and Pari et al, respectively [119,120]. In these studies various symmetrical and unsymmetrical cobalt(II) and zinc(II) phthalocyanines were used (Figure 8).…”

Section: Catecholaminesmentioning

confidence: 99%

“…In these studies various symmetrical and unsymmetrical cobalt(II) and zinc(II) phthalocyanines were used (Figure 8). In the case of ZnPc, the very low limit of detection of 6 nM was obtained accompanied by linear range of 20 nM to 1 µ M and sensitivity of 2.8784 µ A µ M −1 cm −2 [120]. Despite dopamine, another catecholamine, epinephrine, was subjected to two electrochemical studies using unsubstituted cobalt(II) phthalocyanine embedded on MWCNTs or edge-plane pyrolytic graphite-single walled carbon nanotubes [16,121].…”

Section: Catecholaminesmentioning

confidence: 99%

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Azaporphyrins Embedded on Carbon-Based Nanomaterials for Potential Use in Electrochemical Sensing—A Review

2021

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Phthalocyanines and porphyrazines as macrocyclic aza-analogues of well-known porphyrins were deposited on diverse carbon-based nanomaterials and investigated as sensing devices. The extended π-conjugated electron system of these macrocycles influences their ability to create stable hybrid systems with graphene or carbon nanotubes commonly based on π–π stacking interactions. During a 15-year period, the electrodes modified by deposition of these systems have been applied for the determination of diverse analytes, such as food pollutants, heavy metals, catecholamines, thiols, glucose, peroxides, some active pharmaceutical ingredients, and poisonous gases. These procedures have also taken place, on occasion, in the presence of various polymers, ionic liquids, and other moieties. In the review, studies are presented that were performed for sensing purposes, involving azaporphyrins embedded on graphene, graphene oxide or carbon nanotubes (both single and multi-walled ones). Moreover, possible methods of electrode fabrication, limits of detection of each analyte, as well as examples of macrocyclic compounds applied as sensing materials, are critically discussed.

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Efficacy of Phthalocyanine‐Based Catalysts in Electrochemical Sensors: A Comprehensive Review

C P,

Aralekallu,

Koodlur Sannegowda

2024

Advanced Sensor Research

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Metal phthalocyanines (MPcs) are promising materials for electrochemical sensing due to their physicochemical properties, including redox activity, structural versatility, and chemical stability. These materials can incorporate various metals into their central core, ensuring tunable catalytic activity and enhanced sensitivity and selectivity. This makes MPcs valuable for designing advanced electrochemical sensors, which require precise and reliable performance for applications ranging from environmental monitoring to biomedical diagnostics. This review discusses the advancements in MPc‐based catalysts for electrochemical sensors, focusing on their superior catalytic properties, stability under diverse operating conditions, and high functionalization potential. The unique redox behavior of the metal center in MPcs ensures improved detection capabilities of analytes like biomolecules, heavy metal ions, and environmental pollutants, positioning MPc materials as a cornerstone in future sensor technology. MPc‐based sensors have diverse applications across various fields, including environmental sensing, medical diagnostics, and industrial process monitoring. Recent reports highlight the practical relevance and growing importance of MPcs in real‐world applications. Challenges associated with MPc‐based sensors include scalability, environmental stability, and integration into practical devices. The review concludes with a discussion on the future outlook on MPcs in the design and development of next‐generation electrochemical sensors, paving the way for more efficient, cost‐effective, and reliable detection technologies.

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Amperometric determination of dopamine based on an interface platform comprising tetra-substituted Zn2+ phthalocyanine film layer with embedment of reduced graphene oxide

Cited by 15 publications

References 38 publications

Nickel Tetrasulfonated Phthalocyanine Decorated with AuNP as a Double Sensorial Platform: SERS and Electrochemical

Nickel Tetrasulfonated Phthalocyanine Decorated with AuNP as a Double Sensorial Platform: SERS and Electrochemical

Azaporphyrins Embedded on Carbon-Based Nanomaterials for Potential Use in Electrochemical Sensing—A Review

Efficacy of Phthalocyanine‐Based Catalysts in Electrochemical Sensors: A Comprehensive Review

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