A new electrochemical sensor based on eco-friendly chemistry for the simultaneous determination of toxic trace elements

Wong, Ademar; Ferreira, Priscila Alves; Santos, Anderson M.; Cincotto, Fernando Henrique; Silva, Rodrigo A.B.; Sotomayor, Marı́a Del Pilar Taboada

doi:10.1016/j.microc.2020.105292

Cited by 15 publications

(16 citation statements)

References 18 publications

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“…Several studies have already described the use of biochar as a modifier in CPE manufacturing applied to the determination of nickel [122], pesticides methyl parathion [120] and paraquat [123] in environmental samples. In addition, but less frequently, biochar has also been used to modify GCE surface [75].…”

Section: Biocharmentioning

confidence: 99%

“…According to the authors, the GO leads to a network rich in hydroxyl and carboxyl groups that increases copper ion adsorption. Similarly, Wong et al [75] mixed biochar, nanodiamonds and chitosan obtaining a homogeneous dispersion that was dropped on the GCE for the quantification of cadmium and lead in river water samples. The sensor proved to be of low cost, ecologically friendly and high yield electrode obtaining LODs in the μmol L À 1 range [75].…”

Section: Film Carbon Electrodesmentioning

confidence: 99%

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Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

et al. 2023

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Nowadays, carbon‐based materials applied to the development of chemically modified sensors have been highlighted once they can generate methods with high sensitivity, stability, conductivity, accuracy and low cost. Hence, these sensors have been used in environmental monitoring in aneco‐friendlyy, sensitive, fast, efficient, inexpensive and robust way. In this review, firstly we described about carbon‐based materials and their derivatives, followed by the chemically modified carbon‐based sensors manufacturing overview and their applications in environmental analytical chemistry related to inorganic and organic compounds determinations. Future perspectives on trends of the carbon‐based materials applications in the sensor modifications are also described.

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Section: Biocharmentioning

confidence: 99%

Section: Film Carbon Electrodesmentioning

confidence: 99%

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

et al. 2023

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“…In [262] authors were able to overcome this problem using an electrode modified with boron doped nanodiamonds to detect bisphenol-A reaching a low detection limit at 5 nM. A glassy carbon modified with biochar, nanodiamonds and chitosan, was used to detect toxic metals such as cadmium and lead [263]. The sensor showed an electrochemical sensitivities of 0.42 and 5.3 µA/(µmol cm 2 ) was found for Cd and Pb respectively.…”

Section: Nanodiamond Sensingmentioning

confidence: 99%

Carbon Nanomaterials: Synthesis, Functionalization and Sensing Applications

Speranza

2021

Nanomaterials

148

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Recent advances in nanomaterial design and synthesis has resulted in robust sensing systems that display superior analytical performance. The use of nanomaterials within sensors has accelerated new routes and opportunities for the detection of analytes or target molecules. Among others, carbon-based sensors have reported biocompatibility, better sensitivity, better selectivity and lower limits of detection to reveal a wide range of organic and inorganic molecules. Carbon nanomaterials are among the most extensively studied materials because of their unique properties spanning from the high specific surface area, high carrier mobility, high electrical conductivity, flexibility, and optical transparency fostering their use in sensing applications. In this paper, a comprehensive review has been made to cover recent developments in the field of carbon-based nanomaterials for sensing applications. The review describes nanomaterials like fullerenes, carbon onions, carbon quantum dots, nanodiamonds, carbon nanotubes, and graphene. Synthesis of these nanostructures has been discussed along with their functionalization methods. The recent application of all these nanomaterials in sensing applications has been highlighted for the principal applicative field and the future prospects and possibilities have been outlined.

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“…It is interesting that the sensing process had no need for step cleaning of the electrode surface to remove any remaining bound metals. In addition, the analysis of the Cd and Pb ions indicated a high electrochemical sensitivity of 0.42 and 5.30 μA·μmol −1 ·cm −2 in the quantification of cadmium and lead, respectively [ 62 ].…”

Section: The Application Of Electrochemical Sensors and Biosensors Ba...mentioning

confidence: 99%

Recent Advances of Biochar-Based Electrochemical Sensors and Biosensors

Wang

et al. 2022

Biosensors

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In the context of accelerating the global realization of carbon peaking and carbon neutralization, biochar produced from biomass feedstock via a pyrolysis process has been more and more focused on by people from various fields. Biochar is a carbon-rich material with good properties that could be used as a carrier, a catalyst, and an absorbent. Such properties have made biochar a good candidate as a base material in the fabrication of electrochemical sensors or biosensors, like carbon nanotube and graphene. However, the study of the applications of biochar in electrochemical sensing technology is just beginning; there are still many challenges to be conquered. In order to better carry out this research, we reviewed almost all of the recent papers published in the past 5 years on biochar-based electrochemical sensors and biosensors. This review is different from the previously published review papers, in which the types of biomass feedstock, the preparation methods, and the characteristics of biochar were mainly discussed. First, the role of biochar in the fabrication of electrochemical sensors and biosensors is summarized. Then, the analytes determined by means of biochar-based electrochemical sensors and biosensors are discussed. Finally, the perspectives and challenges in applying biochar in electrochemical sensors and biosensors are provided.

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A new electrochemical sensor based on eco-friendly chemistry for the simultaneous determination of toxic trace elements

Cited by 15 publications

References 18 publications

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

Carbon Nanomaterials: Synthesis, Functionalization and Sensing Applications

Recent Advances of Biochar-Based Electrochemical Sensors and Biosensors

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