Use of carbon black based electrode as sensor for solid-state electrochemical studies and voltammetric determination of solid residues of lead

Maciel, Juliana Villela; Silveira, Géssica Domingos da; Durigon, Ana Maria Munaretto; Fatibello‐Filho, Orlando; Dias, Daiane

doi:10.1016/j.talanta.2021.122881

Cited by 8 publications

(8 citation statements)

References 50 publications

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“…Coated wire ion selective electrode (CW-ISE) [130], composite cork-graphite sensor (Figure 4) [131], disposable screen-printed non-single crystal silver electrode (AgSPE) [132], gold nanoparticle (AuNP)/hexaammineruthenium(III) ([Ru(NH3)6] 3+ )/Nafion modified GCE [133], and carbon blackmodified carbon paste (CB-CP) electrode [134], were fabricated and used as working electrodes in the determination of Pb 2+ in various commercial cosmetics. (2) 3.…”

Section: Heavy Metalsmentioning

confidence: 99%

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

Dodevska

Hadzhiev

Shterev

2022

J. Electrochem. Sci. Eng.

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Due to the rapid growth of the cosmetic industry in recent years, the development of new, reliable, cost-effective, ease of use and rapid methods to assay cosmetics’ quality is of particular importance. Modern electrochemistry provides powerful analytical techniques with excellent sensitivity, instrumental simplicity and portability, providing reliable alternatives to conventional analytical methods. This review aims to give readers a clear view of advances in areas of electrode modification, successful strategies for signal amplification, and miniaturization techniques used in electroanalytical devices for cosmetics control and safety. We have summarized recent trends in the nonenzymatic electrochemical sensor systems applied in the analysis of cosmetic products revealing that there are a variety of efficient sensors for whitening agents, preservatives, UV filters, heavy metals, etc. In conclusion, current challenges related to the sensors design and future perspectives are outlined.

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Section: Heavy Metalsmentioning

confidence: 99%

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

Dodevska

Hadzhiev

Shterev

2022

J. Electrochem. Sci. Eng.

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“…Typically, the redox probe can either be free in the electrolyte solution or immobilized on the electrode surface. Amongst, electrochemical aptasensors based on the immobilization of redox probes on the electrode surface offer higher detection sensitivity ( Maciel et al, 2022 ). This is attributed to the tight immobilization of the electrochemical redox probe on the electrode surface, resulting in a shorter electron transfer pathway.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical aptasensor fabricated by anchoring recognition aptamers and immobilizing redox probes on bipolar silica nanochannel array for reagentless detection of carbohydrate antigen 15-3

Xing,

Han,

Liu

et al. 2023

Front. Chem.

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Timely, convenient, and efficient detection of carbohydrate antigen 15-3 (CA15-3) levels in serum holds significant importance in early screening, diagnostic assistance and prognosis prediction of breast cancer. The development of efficient and convenient electrochemical aptasensors with immobilized redox probes for label-free detection of CA15-3 is highly desirable. In this work, a bipolar silica nanochannel array film (bp-SNA) with two distinct functional domains including nanochannels and an outer surface was employed for the immobilization of recognition ligands and electrochemical redox probes, enabling the construction of a probe-integrated aptasensor for reagentless electrochemical detection of CA15-3. Cost-effective and readily available indium tin oxide (ITO) was used as the supporting electrode for sequential growth of a negatively charged inner layer (n-SNA) followed by a positively charged outer layer (p-SNA). The preparation process of bp-SNA is convenient. Functionalization of amino groups on the outer surface of bp-SNA was modified by aldehyde groups for covalent immobilization of recognition aptamers, further establishing the recognition interface. Within the nanochannels of bp-SNA, the electrochemical redox probe, tri (2,2′-dipyridyl) cobalt (II) (Co(bpy)32+) was immobilized, which experienced a dual effect of electrostatic attraction from n-SNA and electrostatic repulsion from p-SNA, resulting in high stability of the immobilized probes. The constructed aptasensor allowed for reagentless electrochemical detection of CA15-3 ranged from 0.001 U/mL to 500 U/mL with a low detection limit (DL), 0.13 mU/mL). The application of the constructed aptasensor for CA15-3 detection in fetal bovine serum was also validated. This sensor offers advantages of a simple and readily obtainable supporting electrode, easy bp-SNA fabrication, high probe stability and good stability.

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“…The nanomaterial is often employed as thin film or electrode coating in conjunction with other nanoparticles and active materials. Recently, few studies have proposed the use of CB-based sensors to enhance the sensitivity of electrochemical sensors for stripping voltammetric analysis [24][25][26][27][28]. However, few studies have been conducted for metal analysis.…”

Section: Introductionmentioning

confidence: 99%

Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier

Pokpas

Jahed

Bezuidenhout

et al. 2022

J. Electrochem. Sci. Eng.

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Electrochemical detection of metal cations at paper-based sensors has been suggested as an attractive alternative to current spectroscopic and chromatographic detection techniques due to the ease of fabrication, disposable nature, and low cost. Herein, a novel carbon black (CB), dimethylglyoxime (DMG) ink is designed as an electrode modifier in conjunction with 3-electrode inkjet-printed paper substrates for use in the adsorptive stripping voltammetric electroanalysis of nickel cations in water samples. The developed method provides a novel, low-cost, rapid, and portable adsorptive stripping detection approach towards metal analysis in the absence of the commonly used toxic metallic films. The study demonstrated a novel approach to nickel detection at paper-based sensors and builds on previous work in the field of paper-based metal analysis by limiting the use of toxic metal films. The device sensitivity is improved by increasing the active surface area, electron transfer kinetics, and catalytic effects associated with non-conductive dimethylglyoxime films through CB nanoparticles for the first time and confirmed by electroanalysis. The first use of the CB-DMG ink allows for the selective preconcentration of analyte at the electrode surface without the use of toxic Mercury or Bismuth metallic films. Compared to similarly reported paper-based sensors, improved limits of detection (48 µg L-1), selectivity, and intermetallic interferences were achieved. The method was applied to the detection of nickel in water samples well below World Health Organization (WHO) standards.

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Use of carbon black based electrode as sensor for solid-state electrochemical studies and voltammetric determination of solid residues of lead

Cited by 8 publications

References 50 publications

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

Electrochemical aptasensor fabricated by anchoring recognition aptamers and immobilizing redox probes on bipolar silica nanochannel array for reagentless detection of carbohydrate antigen 15-3

Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier

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