Novel colorimetric aptasensor based on MOF-derived materials and its applications for organophosphorus pesticides determination

Shen, Zheng; Xu, Deyan; Wang, Guangxian; Geng, Lingjun; Xu, Rui; Wang, Guanjie; Guo, Yemin; Sun, Xia

doi:10.1016/j.jhazmat.2022.129707

Cited by 82 publications

(12 citation statements)

References 49 publications

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“…188 Besides, nanozymes can be used as a catalytic label to be combined with aptamers or antibodies to fabricate biosensors for pesticide residues. [183][184][185]197…”

Section: Detection Of Pesticidesmentioning

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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“…188 Besides, nanozymes can be used as a catalytic label to be combined with aptamers or antibodies to fabricate biosensors for pesticide residues. [183][184][185]197…”

Section: Detection Of Pesticidesmentioning

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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“…Moreover, Shen et al developed an aptamer-mediated bimetallic MOF nanozyme with peroxidase-like activity, employing Fe–Co MNPs and Fe–N–C nanozymes prepared from Fe-ZIF-67 and Fe-ZIF-8 precursors, respectively. This nanozyme enabled ultrasensitive colorimetric detection of four different OPPs …”

Section: Catalytic Properties Of Mofs In Agriculturementioning

confidence: 99%

Metal–Organic Framework-Enabled Sustainable Agrotechnologies: An Overview of Fundamentals and Agricultural Applications

Cui,

Li,

Tsyusko

et al. 2024

J. Agric. Food Chem.

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With aggravated abiotic and biotic stresses from increasing climate change, metal−organic frameworks (MOFs) have emerged as versatile toolboxes for developing environmentally friendly agrotechnologies aligned with agricultural practices and safety. Herein, we have explored MOF-based agrotechnologies, focusing on their intrinsic properties, such as structural and catalytic characteristics. Briefly, MOFs possess a sponge-like porous structure that can be easily stimulated by the external environment, facilitating the controlled release of agrochemicals, thus enabling precise delivery of agrochemicals. Additionally, MOFs offer the ability to remove or degrade certain pollutants by capturing them within their pores, facilitating the development of MOF-based remediation technologies for agricultural environments. Furthermore, the metal−organic hybrid nature of MOFs grants them abundant catalytic activities, encompassing photocatalysis, enzyme-mimicking catalysis, and electrocatalysis, allowing for the integration of MOFs into degradation and sensing agrotechnologies. Finally, the future challenges that MOFs face in agrotechnologies were proposed to promote the development of sustainable agriculture practices.

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“…By etching the longitudinal absorption band through the peroxidase-catalyzed oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) by H 2 O 2 under acidic conditions, the aspect ratio can be adjusted, thereby visually presenting various color changes. Colorimetric analysis methods constructed based on Au NPs, owing to their simplicity and lack of need for equipment, had been applied to detect different targets. − Compared with traditional colorimetric analysis methods using organic dyes as substrates, this approach, characterized by high extinction coefficients and a variety of color changes, enhances detection sensitivity and visual recognition capability. − In previous studies, our research team has developed many sensors based on the etching of Au NRs. These sensors have also demonstrated strong detection capabilities in the analysis of real samples. − …”

Section: Introductionmentioning

confidence: 99%

Multicolor Biosensor of Hyaluronidase by the Regulation of Enzyme-Like Catalytic Activity of Au Nanoclusters through Changes in the Aggregation State

Tian,

Lin,

Lin

et al. 2024

ACS Appl. Nano Mater.

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The control of nanoparticle morphology can effectively change their properties. Adjusting the aggregation state of bovine serum albumin-coated gold nanoclusters (BSA-Au NCs) can regulate the enzyme-mimicking catalytic activity. Hyaluronic acid (HA) induces the aggregation of BSA-Au NCs, leading to the shielding of the catalytic active sites and a decrease in activity; this feature has been utilized to design a multicolor biosensor for hyaluronidase (HAase). The presence of HAase can hydrolyze the glycosidic bonds in HA, causing the aggregated BSA-Au NCs to disperse and express their catalytic activity, which in turn catalyzes the etching of Au nanobipyramids (Au-NBPs) in the presence of 3,3′,5,5′-tetramethylbenzidine (TMB), resulting in a morphological transition from bipyramidal to ellipsoidal and spherical shapes, while the solution displays a variety of colors. Visual recognition of these multicolor changes establishes a relationship between the enzyme activity and color. Based on the controlled aggregation and dispersion of BSA-Au NCs and the etching of Au-NBPs, a simple multicolor HAase biosensor was designed. The proposed biosensor shows a linear response to HAase concentrations in the range of 5−80 U/mL, with clear color changes under optimized conditions. The limit of detection (LOD) of the sensor was determined to be 1.98 U/mL (LOD = 3s/k). This method successfully applies the changing of enzyme-mimicking catalytic activity nanoparticles for colorimetric analysis detection.

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Novel colorimetric aptasensor based on MOF-derived materials and its applications for organophosphorus pesticides determination

Cited by 82 publications

References 49 publications

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Metal–Organic Framework-Enabled Sustainable Agrotechnologies: An Overview of Fundamentals and Agricultural Applications

Multicolor Biosensor of Hyaluronidase by the Regulation of Enzyme-Like Catalytic Activity of Au Nanoclusters through Changes in the Aggregation State

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