Novel ion imprinted polymer electrochemical sensor for the selective detection of lead(II)

Dahaghin, Zohreh; Kilmartin, Paul A.; Mousavi, Hassan Zavvar

doi:10.1016/j.foodchem.2019.125374

Cited by 83 publications

(41 citation statements)

References 25 publications

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“…Lead ion (Pb 2+ ) is a major environmental pollutant, which damages circulation system, nervous system and may also cause cancer. Rapid and accurate quantification of lead ions is very important for human health and environment [ 142 , 143 ]. Wen et al proposed a sensitive method for intracellular Pb 2+ detection based on metal ion assisted DNAzyme and SDR [ 144 ] (Fig.…”

Section: Application Of Csa For Fluorescent Biosensorsmentioning

confidence: 99%

Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection

Fan

Chen

et al. 2021

J Nanobiotechnol

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The cyclic signal amplification technology has been widely applied for the ultrasensitive detection of many important biomolecules, such as nucleic acids, proteins, enzymes, adenosine triphosphate (ATP), metal ions, exosome, etc. Due to their low content in the complex biological samples, traditional detection methods are insufficient to satisfy the requirements for monitoring those biomolecules. Therefore, effective and sensitive biosensors based on cyclic signal amplification technology are of great significance for the quick and simple diagnosis and treatment of diseases. Fluorescent biosensor based on cyclic signal amplification technology has become a research hotspot due to its simple operation, low cost, short time, high sensitivity and high specificity. This paper introduces several cyclic amplification methods, such as rolling circle amplification (RCA), strand displacement reactions (SDR) and enzyme-assisted amplification (EAA), and summarizes the research progress of using this technology in the detection of different biomolecules in recent years, in order to provide help for the research of more efficient and sensitive detection methods. Graphical Abstract

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Section: Application Of Csa For Fluorescent Biosensorsmentioning

confidence: 99%

Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection

Fan

Chen

et al. 2021

J Nanobiotechnol

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“…More importantly is that the level of this toxicity goes on increasing in water supplies due to ever increasing discharge of industrial wastes containing nonbiodegradable heavy metals and their detection becomes crucial to safe guard the ecosystem. [3][4][5][6] Pb 2 + ions being highly toxic amongst all other metal ions, adversely affect the various human body systems namely the neurologic, hematologic, gastrointestinal, cardiovascular, renal and kidneys even at ultralow-level concentrations. [7] The maximum threshold limit set by WHO for Pb 2 + ions in drinking water is 10 μg/L (10 ppb).…”

Section: Introductionmentioning

confidence: 99%

1D GNR‐PPy Composite for Remarkably Sensitive Detection of Heavy Metal Ions in Environmental Water**

et al. 2022

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The work reported here exploits the extraordinary features of graphene nanoribbons (GNR) and well‐known conductive polypyrrole (PPy) polymer to develop a very good electrochemically active composite for sensing metal ions. A strong hydrogen bond and π‐π interaction between the two components facilitates an enhanced conductive 3D network that has been used to design and fabricate an electrochemical sensor for selective and sensitive determination of Pb2+ ions by differential pulse voltammetry (DPV). The probe has been further extended to simultaneously detect Zn2+, Cd2+, As2+, Cu2+, Pb2+, Fe2+ and Hg2+ ions. Moreover, the larger effective surface area, higher porosity and chelating groups of composite promotes better adsorption‐stripping process of Pb2+ ions, leading to a high detection limit of 0.03 nM with a sensitivity of 0.7557 μA μM−1cm−2. This study is extended to detect heavy metal ions in lake water samples, demonstrating promising applications in real time (environmental) samples, and the study shows a deviation of ≈10 %, when validated with atomic absorption spectroscopy studies.

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“…In addition to the organic molecules, important metal ions are also included in the EPA Priority Pollutant List. In order to monitor the quality of water samples, different sensors were modified with ion imprinted polymers (IIPs) for sensitive and selective detection of metal ions including arsenic [88,89], mercury [90], cadmium [91,92], chromium [93,94], copper [95,96], lead [97,98], silver [99], thallium [100] and zinc [101]. However, IIPs and metal ions are not in the scope of this review and are not discussed here.…”

Section: Introductionmentioning

confidence: 99%

Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants

Zarejousheghani

Rahimi

Borsdorf

et al. 2021

Sensors

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Globally, there is growing concern about the health risks of water and air pollution. The U.S. Environmental Protection Agency (EPA) has developed a list of priority pollutants containing 129 different chemical compounds. All of these chemicals are of significant interest due to their serious health and safety issues. Permanent exposure to some concentrations of these chemicals can cause severe and irrecoverable health effects, which can be easily prevented by their early identification. Molecularly imprinted polymers (MIPs) offer great potential for selective adsorption of chemicals from water and air samples. These selective artificial bio(mimetic) receptors are promising candidates for modification of sensors, especially disposable sensors, due to their low-cost, long-term stability, ease of engineering, simplicity of production and their applicability for a wide range of targets. Herein, innovative strategies used to develop MIP-based sensors for EPA priority pollutants will be reviewed.

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Novel ion imprinted polymer electrochemical sensor for the selective detection of lead(II)

Cited by 83 publications

References 25 publications

Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection

Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection

1D GNR‐PPy Composite for Remarkably Sensitive Detection of Heavy Metal Ions in Environmental Water**

Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants

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