Smartphone-integrated nanozymes sensor array for high throughput recognition of organophosphorus pesticides

Jing, Wenjie; Shan, Qiang; Jia, Zejun; Shi, Qi; Meng, Xuan; Yu, Mincong; Ma, Hui; Zhao, Kai; Dai, Yujie

doi:10.1016/j.snb.2023.133857

Cited by 38 publications

(4 citation statements)

References 33 publications

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“…In this regard, nanozyme-involved sensors without the use of natural enzymes have been reported to detect pesticides. According to the role of pesticides in the nanozyme-only sensors, they can be classified into two kinds: (1) pesticide molecules induce the variation of nanozyme activity via their specific interactions; 178–182,192–196 (2) OPs are hydrolyzed by phosphatase-mimetic materials to produce response. 186–189…”

Section: Detection Of Environmental Pollutants Based On Nanozyme Cata...mentioning

confidence: 99%

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Diao,

Chen,

Tang

et al. 2024

Environ. Sci.: Nano

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Section: Detection Of Environmental Pollutants Based On Nanozyme Cata...mentioning

confidence: 99%

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Diao,

Chen,

Tang

et al. 2024

Environ. Sci.: Nano

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“…The color information could be readable in terms of different color space parameters, such as RGB, CMYK, grayscale, etc. [49][50][51] Currently, the typical chromogenic agents such as 2,2'azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS), 3,3',5,5'-tetramethylbenzidine (TMB), and o-phenylenediamine (OPD) are frequently used in the nanozyme based colorimetric sensing. [52][53][54] The oxidation of chromogenic agents could be facilitated or inhibited in the presence of target analytes, providing different degrees of color signals, which can be captured by the high-resolution CMOS cameras.…”

Section: Colorimetric Signalmentioning

confidence: 99%

Rational Integration of Nanozyme Probe and Smartphone Device for On‐Site Analysis

Wu,

Zhou,

Chen

et al. 2024

Analysis & Sensing

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On‐site detection featuring miniaturized, integrated analytical device and rapid data feedback has encouraged a great deal of attention, especially in the current context of pandemic diseases occurring with high frequency worldwide. This convenient detection device constitutes a stable recognition element and a portable signal treatment and readout module. In this regard, the enzyme‐mimic nanomaterials (nanozymes) with the merits of structural stability, cost efficiency, scale‐up synthesis and high recyclability well meet the requirements for recognition unit set‐up. While the all‐pervading smartphone, which enables the data collection through photography or wireless transmission, holds numerous opportunities in the design of hand‐held analytical device. In this review, we summarize the advances of nanozyme‐smartphone integrated platforms, with special emphasis of the signal transduction principles involving colorimetric, chemiluminescence, and electrochemical signals. The diversified on‐site applications in terms of biological, environment and food analysis are showcased. Finally, the current challenges as well as thefuture perspectives on nanozyme design, sensing diversity and smartphone analysis are discussed.

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“…In addition, Jing and co-workers designed a colorimetric sensor array based on Ag 2 O nanozymes using three different chromogenic substrates. By combining with the smartphone RGB analysis platform, six types of OPs were successfully identified, which is a more convenient detection method …”

Section: Application Of the Nanozyme Sensor Arraymentioning

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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Smartphone-integrated nanozymes sensor array for high throughput recognition of organophosphorus pesticides

Cited by 38 publications

References 33 publications

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Rational Integration of Nanozyme Probe and Smartphone Device for On‐Site Analysis

Construction and Application of Nanozyme Sensor Arrays

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