The influence mechanism of the molecular structure on the peak current and peak potential in electrochemical detection of typical quinolone antibiotics

Li, Jiawei; Xue, Qi‐Kun; Chen, Tao; Liu, Fei; Wang, Qun; Chang, Chunwen; Lü, Xiaohua; Zhou, Taogeng; Niwa, Osamu

doi:10.1039/d1cp01358k

Cited by 10 publications

(2 citation statements)

References 42 publications

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“…For these reasons, this approach has good potential for real-time and in situ analysis. 14 Pollutants exist at different concentrations and in different forms in different water environments and water chemical conditions (such as pH value, chemical composition, and interference factors) can also vary. Overall, these differences between water environments can significantly influence electrode sensitivity, anti-interference performance, stability, and service life.…”

Section: Introductionmentioning

confidence: 99%

Recent progress regarding electrochemical sensors for the detection of typical pollutants in water environments

et al. 2022

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A variety of organic and inorganic pollutants in water environments pose threats to human health. Therefore, it is critical to develop effective techniques to determine and monitor levels of water contamination. Compared with traditional detection methods, electrochemical sensors have the advantages of high sensitivity, low detection limits, and good selectivity. In this review, we summarize the progress made from 2000 to 2020 regarding the development of electrochemical sensors capable of detecting typical pollutants in different water environments. Since the concentrations of typical organic contaminants (antibiotics and pesticides) in water environments are often very low (generally at the nmol level), further improvements to electrode sensitivity and detection limit will be necessary. We also found that more detailed cost analysis of electrode materials is needed to support for future production and applications. When we apply the electrode to detect the real water samples, the anti-interference and electrochemical sensor componentization need further enhanced. Besides, although groundwater serves as the main or only source of drinking water in many areas, current studies on the electrochemical detection of groundwater pollutants are limited. We hope that this review will provide new ideas for the future development of electrochemical water contaminant sensors.

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Section: Introductionmentioning

confidence: 99%

Recent progress regarding electrochemical sensors for the detection of typical pollutants in water environments

et al. 2022

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“…Nowadays, there are more than 160 000 antibiotics which are used widely in various fields. Ofloxacin is a significant member of the fluoroquinolone antibiotics. − Ofloxacin is a synthetic broad-spectrum antimicrobial agent, which is mainly used for antimicrobial infections caused by Gram-negative bacteria, especially for acute and chronic infections of the gastrointestinal or respiratory tract, and skin, soft tissue, and genitourinary system. , However, the abuse of antibiotics will do great harm to the human body. It is reported that excessive use of ofloxacin may cause severe adverse symptoms such as urticaria, anaphylactic shock, liver function damage, transient increase of transaminase, and so on. , Therefore, it is urgent to develop a simple, rapid, sensitive, and reliable analytical method to detect the presence of ofloxacin.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Determination of Ofloxacin by Molecularly Imprinted Polymers Containing Ionic Liquid Functionalized Carbon Quantum Dots and Europium Ion

Wang

Zhou

Min

et al. 2022

ACS Appl. Nano Mater.

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Antibiotic pollution has become a serious problem due to concerns about sustainability and the environment. Ofloxacin (OFL) is an important antibiotic, which is used widely in the treatment of human and animal diseases, resulting in large-scale production and aggregation in the environment. A facile and high-performance method for detecting OFL is valuable for practical reasons. Herein, a novel CDs/Eu3+-based molecularly imprinted polymer fluorescent probe (CDs/Eu3+@MIP) was successfully synthesized using ionic liquid-functionalized carbon dots (IL@CDs) as the functional monomer and ofloxacin (OFL) as the template molecule. This probe exhibited excellent fluorescent properties. Under optimal conditions, CDs/Eu3+@MIP displayed outstanding detection performance for OFL. The limit of detection was as low as 0.25 nM. Furthermore, the detection mechanism of the fluorescent probe was also discussed. The lanthanide luminescence intensity increased significantly with the addition of OFL, which was observed as a deeper red color with the naked eye. The mechanism of detecting OFL was exposure to the efficient energy transfer from OFL to Eu3+ through the antenna effect. In particular, the probe demonstrated high selectivity toward OFL due to combining molecular imprinting technology. This first reported fluorescent sensing material based on CDs/Eu3+@MIP provides a promising scheme for highly sensitive detection of antibiotic OFL.

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Self‐Assembly of the Porphyrin Monomer on the Surface of Fe/Graphene Material: A Novel Sensing Material for the Detection of Chloramphenicol Antibiotic in Aqueous solution

Nguyen,

Manh Khong,

Duc La

et al. 2024

ChemPhysChem

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Currently, electrochemical sensors are in the process of being developed and widely used in various fields, and new materials are being explored to enhance the precision and selectivity of the sensors. The Fe/graphene nanoparticles were synthesized utilizing a green approach, wherein leaf extract was employed as the reducing agent. The resulting materials underwent comprehensive characterization utilizing a range of contemporary techniques, including scanning electron microscopy (SEM), X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), and Raman spectroscopy. The findings of the study revealed that the nanocomposites of Fe/graphene/porphyrin comprised zero‐valent iron nanoparticles, exhibiting an average particle size ranging from 15 to 60 nm. These nanoparticles were seen to be evenly dispersed across the graphene sheets. The presence of nanostructure porphyrin nanofibers, measuring 20 nm in diameter, was also shown to exhibit strong integration with the surface of the Fe/graphene nanomaterials. The electrochemical properties of the Fe/graphene/porphyrin nanocomposite were also investigated, demonstrating that the prepared material could be effectively employed as a sensing electrode in the electrochemical sensor for detecting Chloramphenicol (CAP) through CV, EIS, and DPV techniques using a three‐electrode electrochemical system. Under optimal conditions, Fe/graphene/porphyrin exhibited a high current response when detecting CAPs.

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The influence mechanism of the molecular structure on the peak current and peak potential in electrochemical detection of typical quinolone antibiotics

Abstract: Antibiotic pollution in water has become an increasingly serious problem, posing a potentially huge threat to human health. Ofloxacin (OFL), Norfloxacin (NOR), Enoxacin (ENX) are typical broad-spectrum quinolone antibiotics, which...

Cited by 10 publications

References 42 publications

Recent progress regarding electrochemical sensors for the detection of typical pollutants in water environments

Recent progress regarding electrochemical sensors for the detection of typical pollutants in water environments

Sensitive Determination of Ofloxacin by Molecularly Imprinted Polymers Containing Ionic Liquid Functionalized Carbon Quantum Dots and Europium Ion

Self‐Assembly of the Porphyrin Monomer on the Surface of Fe/Graphene Material: A Novel Sensing Material for the Detection of Chloramphenicol Antibiotic in Aqueous solution

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