A review on nanomaterial-based electrochemical, optical, photoacoustic and magnetoelastic methods for determination of uranyl cation

Farzin, Leila; Shamsipur, Mojtaba; Sheibani, Shahab; Samandari, Leila; Hatami, Zahra

doi:10.1007/s00604-019-3426-5

Cited by 32 publications

(22 citation statements)

References 169 publications

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“…UO 2 2+ -specific DNAzyme was firstly selected by Lu group and a fluorescent sensor was developed simultaneously ( Liu et al, 2007 ). In the past few years, quite a few amplified sensing platforms had been established for the quantitative detection of UO 2 2+ ( Farzin et al, 2019 ; He and Hua, 2019 ; Wu et al, 2019 ; Wang et al, 2022 ). In this review, we only focused on the application of various types of DNAzymes-based methods with diverse signals outputting approaches to achieve quantitative detection of uranyl ion.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances on DNAzyme-Based Biosensors for Detection of Uranyl

Bai

Chai

et al. 2022

Front. Chem.

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Nuclear facilities are widely used in fields such as national defense, industry, scientific research, and medicine, which play a huge role in military and civilian use. However, in the process of widespread application of nuclear technology, uranium and its compounds with high carcinogenic and biologically toxic cause a lot of environmental problems, such as pollutions of water, atmosphere, soil, or ecosystem. Bioensors with sensitivity and specificity for the detection of uranium are highly demand. Nucleic acid enzymes (DNAzyme) with merits of high sensitivity and selectivity for targets as excellent molecular recognition elements are commonly used for uranium sensor development. In this perspective review, we summarize DNAzyme-based biosensors for the quantitative detection of uranyl ions by integrating with diverse signal outputting strategies, such as fluorescent, colorimetry, surface-enhanced Raman scattering, and electrochemistry. Different design methods, limit of detection, and practical applications are fully discussed. Finally, the challenges, potential solutions, and future prospects of such DNAzyme-based sensors are also presented.

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Section: Introductionmentioning

confidence: 99%

Recent Advances on DNAzyme-Based Biosensors for Detection of Uranyl

Bai

Chai

et al. 2022

Front. Chem.

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“…Many detection strategies based on AIE exhibit high sensitivity to uranyl [9] . However, the currently available uranium detection techniques depend on the selective recognition of uranyl ions by chelating units, including biological peptides, [10] DNA, [11] amidoxime groups, [7a] and other fluorescently modified chemical groups, [9d] and several of these chelating units can also be bound by interfering metal ions, [12] which reduces the detection selectivity and sensitivity to uranyl ions. Therefore, it is interesting and important to develop a novel uranyl detection strategy that does not solely rely on the specific recognition of uranyl.…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive Detection of Aqueous Uranyl Based on Uranyl‐Triggered Protein Photocleavage

et al. 2022

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The detection of environmental uranyl is attracting increasing attention. However, the available detection strategies mainly depend on the selective recognition of uranyl, which is subject to severe interference by coexisting metal ions. Herein, based on the unique uranyl‐triggered photocleavage property, the protein BSA is labelled with fluorescent molecules that exhibit an aggregation‐induced emission effect for uranyl detection. Uranyl‐triggered photocleavage causes the separation of the fluorescent‐molecule‐labelled protein fragments, leading to attenuation of the emission fluorescence, which is used as a signal for uranyl detection. This detection strategy shows high selectivity for uranyl and an ultralow detection limit of 24 pM with a broad detection range covering five orders of magnitude. The detection method also shows high reliability and stability, making it a promising technique for practical applications in diverse environments.

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“…Bioassays, which are often fabricated for accurate identification and efficient quantification of target analyte, have received constant attention from all walks of life for a long time. 1 Owing to the rapid development in molecular biology, material science, and mechanical engineering, a new device (so-called biosensor) that F I G U R E 1 Schematic representation of a biosensor for glucose detection with the assistance of glucose oxidase. 4 As shown in Figure 1, a biosensor is an integrated device for measuring specific bio/chemical reactions based on bioreceptors (e.g., enzymes, natural antibodies, 3D nucleic acids-based aptamer, etc.…”

Section: Introductionmentioning

confidence: 99%

State of the art in development of molecularly imprinted biosensors

Li-cheng

Miao

et al. 2021

VIEW

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Biosensors are a class of smart devices fabricated for target analyte detection. A biosensor is commonly made of three basic components: a specific bioreceptor, a physicochemical transducer, and a signal processing device. The bioreceptor part features one of the more crucial technologies of a biosensor to perform specific detection of analytes. They commonly make use of various molecular recognition elements, such as enzymes, natural receptors, antibodies, nucleic acid aptamers, and even synthetic receptors. Then, the molecular recognition events of these bioreceptors can be translated into readable signals in various forms like electrochemical, optical, piezo/pyro electric, etc. Finally, these signals are mathematically processed for quantitative analysis. Nowadays, the great advances in biomimetic materials, in particular the synthetic receptors based on molecularly imprinted polymers (MIPs), promote tremendous development of biosensors. Integration of this field with artificial intelligence enables emerging design of advanced biosensors, which has moved from concept to implementation, meanwhile facing new opportunities and challenges. With no doubt, bioreceptor innovation based on molecular imprinting is an emerging driving force for biosensors development. In this review paper, we provide an overview of MIP‐based biosensors, and also their challenges and opportunities moving forward toward wearable devices are discussed.

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A review on nanomaterial-based electrochemical, optical, photoacoustic and magnetoelastic methods for determination of uranyl cation

Cited by 32 publications

References 169 publications

Recent Advances on DNAzyme-Based Biosensors for Detection of Uranyl

Recent Advances on DNAzyme-Based Biosensors for Detection of Uranyl

Ultrasensitive Detection of Aqueous Uranyl Based on Uranyl‐Triggered Protein Photocleavage

State of the art in development of molecularly imprinted biosensors

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