AuNP-/rGO-/GCE-based molecular imprinted electrochemical sensor for rapid and sensitive detection of coumarin

Zhao, Xiaoyu; Guo, Zhenni; Hou, Yongdan; Gbologah, Lemuel; Qiu, Shi; Zeng, Xiangdong; Cao, Ruge; Zhang, Juankun

doi:10.1007/s11696-022-02139-7

Cited by 5 publications

(5 citation statements)

References 33 publications

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“…The linear range and LOD of the sensor for coumarin detection were from 1.0 × 10 –7 to 1.8 × 10 –5 M and 1.15 × 10 –8 M, respectively. The sensor has the characteristics of high sensitivity, good stability, and fast response speed and is awaiting utilization in real sample detection . Fu et al proposed a method based on electrochemical reduction behavior, as detection of coumarins in samples requires an extraction that is too complex to meet the detection needs of the analytical technique.…”

Section: Applications Of Nanomaterial-based Sensors For Coumarin Dete...mentioning

confidence: 99%

“…The sensor has the characteristics of high sensitivity, good stability, and fast response speed and is awaiting utilization in real sample detection. 211 Fu et al proposed a method based on electrochemical reduction behavior, as detection of coumarins in samples requires an extraction that is too complex to meet the detection needs of the analytical technique. The sample particles were combined with graphene and immobilized on the electrode surface.…”

Section: Applications Of Nanomaterial-based Sensors For Coumarin Dete...mentioning

confidence: 99%

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Nanomaterial-Based Sensors for Coumarin Detection

Saylan,

Aliyeva,

Eroglu

et al. 2024

ACS Omega

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Sensors are widely used owing to their advantages including excellent sensing performance, user-friendliness, portability, rapid response, high sensitivity, and specificity. Sensor technologies have been expanded rapidly in recent years to offer many applications in medicine, pharmaceuticals, the environment, food safety, and national security. Various nanomaterial-based sensors have been developed for their exciting features, such as a powerful absorption band in the visible region, excellent electrical conductivity, and good mechanical properties. Natural and synthetic coumarin derivatives are attracting attention in the development of functional polymers and polymeric networks for their unique biological, optical, and photochemical properties. They are the most abundant organic molecules in medicine because of their biological and pharmacological impacts. Furthermore, coumarin derivatives can modulate signaling pathways that affect various cellular processes. This review covers the discovery of coumarins and their derivatives, the integration of nanomaterial-based sensors, and recent advances in nanomaterial-based sensing for coumarins. This review also explains how sensors work, their types, their pros and cons, and sensor studies for coumarin detection in recent years.

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Section: Applications Of Nanomaterial-based Sensors For Coumarin Dete...mentioning

confidence: 99%

Section: Applications Of Nanomaterial-based Sensors For Coumarin Dete...mentioning

confidence: 99%

Nanomaterial-Based Sensors for Coumarin Detection

Saylan,

Aliyeva,

Eroglu

et al. 2024

ACS Omega

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“…The metallic nanoparticles of noble metals have excellent electrochemical performance and excellent electrical conductivity, being considered ideal for applications in electrochemical sensors [35], being able to help in high electron transfer caused due to small size and large surface area to volume ratio [36,37]. AuNP has been widely used to increase conductivity in addition to accelerating charge transfer [38]. These factors corroborate to provide a better electrochemical response for the sensor in terms of current, making them a considerably ideal material for different applications such as chemical and biological sensors [38,39].…”

Section: Introductionmentioning

confidence: 99%

“…AuNP has been widely used to increase conductivity in addition to accelerating charge transfer [38]. These factors corroborate to provide a better electrochemical response for the sensor in terms of current, making them a considerably ideal material for different applications such as chemical and biological sensors [38, 39].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of benzene, toluene and xylene (BTX) by Au nanoparticles (AuNP) anchored in reduced graphene oxide electrode

Carlos Braga Alves,

Ribamar Nascimento dos Santos,

Pereira Marques

et al. 2023

Electroanalysis

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This work reports the development of an electrochemical sensor for the simultaneous determination of benzene, toluene and xylene (BTX). The sensor was prepared by coating the glassy carbon electrode (GCE) with reduced graphene oxide (RGO) film, decorated with gold nanoparticles (AuNP), by electrodeposition. Surface modification with AuNP/RGO‐GCE favored the electron transfer process and increased the active area, providing greater sensitivity for the sensor. The AuNP/RGO‐GCE sensor was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). Quantitative analyses of BTX were carried out using the differential pulse voltammetry (DPV) technique, after optimization of the parameters that influence the sensor performance. The sensor showed a linear response in the 30–240 μM concentration range, with a detection limit range of 1.8–2.2 μM, 2.2–2.7 μM, and 2.0–2.6 μM, and quantification limit range of 6.2–7.3 μM, 7.2–8.9 μM, and 6.6–8.8 μM, respectively for B, T and X. In addition to the satisfactory repeatability and stability, in the determination of BTX, the method still showed good selectivity even in the presence of molecules with similar chemical structure, such as: catechol, p‐benzoquinone, resorcinol, ethanol, pyrene and in the presence of K+, Mg2+ and Pb2+ ions. The device was successfully applied for the determination of the analytes (BTX) in water samples from fuel station separator boxes, where recovery rates close to 100 % (97.8 % to 103.1 %) were obtained. The results obtained suggest that the AuNP/RGO‐GCE sensor has strong potential for detecting BTX in wastewater discharge from industrial processes.

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“…In 1972, Wulff and Sarhan prepared the first MIP based on covalent interaction for theophylline molecular separation [ 13 ]. MIPs have the merits including high temperature and pressure resistance, acid-base resistance property, good stability in organic solvents, strong reproducibility and regenerative ability and controllable film thickness, which makes them have great potential as sensor sensing elements [ 14 , 15 ]. Hence, MIPs have played a prominent role as an analytical tool in the development of custom sensors.…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review

Sun

Zhang

et al. 2022

Biosensors

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Heavy metal ions (HMIs) pose a serious threat to the environment and human body because they are toxic and non-biodegradable and widely exist in environmental ecosystems. It is necessary to develop a rapid, sensitive and convenient method for HMIs detection to provide a strong guarantee for ecology and human health. Ion-imprinted electrochemical sensors (IIECSs) based on nanomaterials have been regarded as an excellent technology because of the good selectivity, the advantages of fast detection speed, low cost, and portability. Electrode surfaces modified with nanomaterials can obtain excellent nano-effects, such as size effect, macroscopic quantum tunneling effect and surface effect, which greatly improve its surface area and conductivity, so as to improve the detection sensitivity and reduce the detection limit of the sensor. Hence, the present review focused on the fundamentals and the synthetic strategies of ion-imprinted polymers (IIPs) and IIECSs for HMIs detection, as well as the applications of various nanomaterials as modifiers and sensitizers in the construction of HMIIECSs and the influence on the sensing performance of the fabricated sensors. Finally, the potential challenges and outlook on the future development of the HMIIECSs technology were also highlighted. By means of the points presented in this review, we hope to provide some help in further developing the preparation methods of high-performance HMIIECSs and expanding their potential applications.

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AuNP-/rGO-/GCE-based molecular imprinted electrochemical sensor for rapid and sensitive detection of coumarin

Cited by 5 publications

References 33 publications

Nanomaterial-Based Sensors for Coumarin Detection

Nanomaterial-Based Sensors for Coumarin Detection

Simultaneous determination of benzene, toluene and xylene (BTX) by Au nanoparticles (AuNP) anchored in reduced graphene oxide electrode

Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review

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