Multi-signal sensor array based on a fluorescent nanozyme for broad-spectrum screening of pesticides

Song, Donghui; Tian, Tian; Wang, Le; Zou, Yuting; Zhao, Lingzhu; Xiao, Jing; Huang, Hui; Li, Yongxin

doi:10.1016/j.cej.2024.148784

Cited by 17 publications

(4 citation statements)

References 47 publications

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“…After combining Eriochrome Black T with Eu 3+ , the color and fluorescence intensity of the probe would show “fingerprint” changes with the addition of analytes, achieving robust and rapid detection . In addition, Song et al developed a three-channel sensor system utilizing the laccase (LAC) activity, POD activity, and fluorescent feature of Cu 2+ -coordinated 2-aminoterephthalic acid to discriminate pesticides . This sensor array-based broad-spectrum pesticide screening provides a new method for food safety supervision.…”

Section: Sensor Arrays Based On Nanozymesmentioning

confidence: 99%

Construction and Application of Nanozyme Sensor Arrays

Xia,

Li,

Ding

et al. 2024

Anal. Chem.

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Compared with traditional “lock–key mode” biosensors, a sensor array consists of a series of sensing elements based on intermolecular interactions (typically hydrogen bonds, van der Waals forces, and electrostatic interactions). At the same time, sensor arrays also have the advantages of fast response, high sensitivity, low energy consumption, low cost, rich output signals, and imageability, which have attracted widespread attention from researchers. Nanozymes are nanomaterials which own enzyme-like properties. Because of the adjustable activity, high stability, and cost effectiveness of nanozymes, they are potential candidates for construction of sensor arrays to output different signals from analytes through the chemoresponse of colorants, which solves the shortcomings of traditional sensors that they cannot support multiple detection and lack universality. Recently, a sensor array based on nanozymes as nonspecific recognition receptors has attracted much more attention from researchers and has been applied to precise recognition of proteins, bacteria, and heavy metals. In this perspective, attention is given to nanozymes and the regulation of their enzyme-like activity. Particularly, the building principles and methods for sensor arrays based on nanozymes are analyzed, and the applications are summarized. Finally, the approaches to overcome the challenges and perspectives are also presented and analyzed for facilitating further research and development of nanozyme sensor arrays. This perspective should be helpful for gaining insight into research ideas within the field of nanozyme sensor arrays.

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Section: Sensor Arrays Based On Nanozymesmentioning

confidence: 99%

Construction and Application of Nanozyme Sensor Arrays

Xia,

Li,

Ding

et al. 2024

Anal. Chem.

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“…8 In the “array” approach, the sensing probes are based on selective rather than specific interactions with analytes, and different targets produce their own response patterns that can be readily differentiated using linear discriminate analysis (LDA). 9 For example, Xu et al used five organic dyes as detection elements to make sensor arrays for the quantitative and qualitative identification of seven metal ions. 10 With three designed fluorescent dyes – cucurbit[7]uril supramolecular complexes RhB@Q[7], H33342@Q[7] and BRE@Q[7] – as sensing elements, Huang et al developed a fluorescent sensor array for the detection of seven metal ions.…”

Section: Introductionmentioning

confidence: 99%

A fluorescent sensor array based on a single cucurbit[5]uril–truxene probe for simultaneous identification of five heavy metal ions

Qiao,

Li,

Dong

2024

Anal. Methods

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“…In order to differentiate closely related pesticide analytes, sensor arrays have gained popularity as a promising technology [ 20 , 21 , 22 ]. Each receptor in the array can interact with multiple analytes, but with varying binding affinity for each analyte [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Calixarene-Based Supramolecular Sensor Array for Pesticide Discrimination

Chen,

Tian,

Tian

et al. 2024

Sensors

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The identification and detection of pesticides is crucial to protecting both the environment and human health. However, it can be challenging to conveniently and rapidly differentiate between different types of pesticides. We developed a supramolecular fluorescent sensor array, in which calixarenes with broad-spectrum encapsulation capacity served as recognition receptors. The sensor array exhibits distinct fluorescence change patterns for seven tested pesticides, encompassing herbicides, insecticides, and fungicides. With a reaction time of just three minutes, the sensor array proves to be a rapid and efficient tool for the discrimination of pesticides. Furthermore, this supramolecular sensing approach can be easily extended to enable real-time and on-site visual detection of varying concentrations of imazalil using a smartphone with a color scanning application. This work not only provides a simple and effective method for pesticide identification and quantification, but also offers a versatile and advantageous platform for the recognition of other analytes in relevant fields.

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Multi-signal sensor array based on a fluorescent nanozyme for broad-spectrum screening of pesticides

Cited by 17 publications

References 47 publications

Construction and Application of Nanozyme Sensor Arrays

Construction and Application of Nanozyme Sensor Arrays

A fluorescent sensor array based on a single cucurbit[5]uril–truxene probe for simultaneous identification of five heavy metal ions

Calixarene-Based Supramolecular Sensor Array for Pesticide Discrimination

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