Highly sensitive fluorescent quantification of acid phosphatase activity and its inhibitor pesticide Dufulin by a functional metal–organic framework nanosensor for environment assessment and food safety

Liu, Jintong; Ye, Lin Yao; Mo, Yan Yang; Yang, Hong

doi:10.1016/j.foodchem.2021.131034

Cited by 24 publications

(11 citation statements)

References 44 publications

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“…18,19 In our previous work, a metal−organic framework nanosensor was developed for the dufulin OP detection by inhibiting the activity of acid phosphatase. 20 However, enzyme-based sensors were often responsive to various OPs but incapable of detecting the specific pesticide among OPs. 21 Additionally, the signals of enzyme-inhibited methods were usually in an "on−off" mode, resulting in a relatively high background, which was not conducive to the response capture.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Researchers have used approaches, such as high-performance liquid chromatography (HPLC), gas chromatography, and mass spectrometry, to face the challenge of pesticide residue detection. − These methods display adequate sensitivity and stability but suffer from expensive instrumentation, tedious sample preparation, high cost, complex procedures, and specially trained operators. Hence, emerging strategies such as colorimetry, fluorescence, surface-enhanced Raman scattering, and electrochemistry were used to promote the sensing platform for pesticides. − Significantly, benefiting from the enzyme inhibition capability of OPs, several enzyme-mediated methods have sprung up for detecting pesticide residues by sensing the inhibited enzyme activity. , In our previous work, a metal–organic framework nanosensor was developed for the dufulin OP detection by inhibiting the activity of acid phosphatase . However, enzyme-based sensors were often responsive to various OPs but incapable of detecting the specific pesticide among OPs .…”

Section: Introductionmentioning

confidence: 99%

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Nonenzymatic Target-Driven DNA Nanomachine for Monitoring Malathion Contamination in Living Cells and Bioaccumulation in Foods

Liu

Zhang

et al. 2022

Anal. Chem.

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Intensive applications of toxic malathion pesticides bring a vital threat to the environment and health. Hence, a credible and sensitive strategy is urgently needed for the respective detection of malathion. In this work, an aptamer-based nonenzymatic autonomous DNA walking machine was fabricated for monitoring trace malathion contamination in cells and foods. Along with the machine walking driven by malathion-triggered reaction entropy, multiple fluorescent signal outputs were thermodynamically generated for signal amplification. The proposed stable DNA nanomachine achieved satisfactory results with a detection limit of 81.9 pg L–1 for testing malathion, which could be applied to actual samples including apple juice, paddy water, and paddy soil. Furthermore, the high stability, sensitivity, and biocompatibility of the nanomachine enabled monitoring of the malathion contamination in living cells and bioaccumulation in lettuce without additional purification. Consequently, with these excellent performances, it is strongly anticipated that the DNA walking machine has tremendous potential to be extended to general platforms against pesticides to avoid malathion-contaminated agricultural production for environmental safety and human health.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonenzymatic Target-Driven DNA Nanomachine for Monitoring Malathion Contamination in Living Cells and Bioaccumulation in Foods

Liu

Zhang

et al. 2022

Anal. Chem.

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“…The recovery rates of carbaryl in water and juices were in the range of 99.43–102% and 97.10–108.40%, respectively. The RSD of all samples is less than 4.44%, which indicates that the as-prepared sensor has high precision and accuracy, thus showing that the MB@Cd-MOF sensor can be used to detect carbaryl in real samples.…”

Section: Resultsmentioning

confidence: 99%

Porous MB@Cd-MOF Obtained by Post-Modification: Self-Calibrated Fluorescent Turn-on Sensor for Highly Sensitive Detection of Carbaryl

Zhang

Gao

2022

Crystal Growth & Design

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Abuse of pesticides has caused great threat to the environment, so it is urgent to find a fast and sensitive method to detect pesticide residues in agricultural products and water. Herein, a 3D Cd-MOF was designed and synthesized by the reaction of 3,5-di(2′,5′-dicarboxylphenyl)pyridine (H 4 DDPP) and Cd(NO 3 ) 2 under solvothermal conditions. Meanwhile, a stable MB@Cd-MOF composite with dual-emitting characteristic was constructed by the in situ encapsulation of methylene blue (MB) into the channel of Cd-MOF. Compared with Cd-MOF, MB@Cd-MOF exhibits sensitive sensing for carbaryl with the detection limit of 6.7 ng•mL −1 and high accuracy, which are attributed to the fluorescence enhancement effect and dual-emitting characteristics

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“…As the focus of most current research scenarios is on the harmful particulate matter in the range of 10 microns to 2.5 microns, compact sensing platforms made of nanomaterial are becoming very popular. In this framework, electrochemical sensors with a high operational stability are in demand to detect ions [ 54 ] along with organic moieties, such as Dufulin [ 55 ] and 4-Nitrophenol, which, when released in large quantities, causes appreciable harm to the living species around. In the direction of addressing this pressing issue, a sensor constituting protonated polyaniline, boosted with graphene oxide reinforcement [ 56 ] in the form of flakes, is designed to interconnect Iron tungsten nitride and coated on to the glassy carbon electrode as a modification.…”

Section: Transformational Applications Of Nanomaterials For Sensing P...mentioning

confidence: 99%

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

Malini¹,

Roy

Raj³

et al. 2022

Polymers

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Nano-enabled sensing is an expanding interdisciplinary field of emerging science with dynamic multifunctional detecting capabilities, equipped with a wide range of multi-faceted nanomaterial having diverse dimensions and composition. They have proven to be highly robust, sensitive, and useful diagnostic tools ranging from advanced industrial processes to ordinary consumer products. As no single nanomaterial has proved to be unparalleled, recent years has witnessed a large number of nanomaterial-based sensing strategies for rapid detection and quantification of processes and substances with a high degree of reliability. Nano-furnished platforms, because of easy fabrication methods and chemical versatility, can serve as ideal sensing means through different transduction mechanisms. This article, through a unified experimental-theoretical approach, uses literature of recent years to introduce, evaluate, and analyze significant developments in the area of nanotechnology-aided sensors incorporating the various classes of nanomaterial. Addressing the broad interests, the work also summarizes the sensing mechanisms using schematic illustrations, attempts to integrate the performance of different categories of nanomaterials in the design of sensors, knowledge gaps, regulatory aspects, future research directions, and challenges of implementing such techniques in standalone devices. In view of a dependency of analysis and testing on sustained growth of sensor-supported platforms, this article inspires the scientific community for more attention in this field.

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Highly sensitive fluorescent quantification of acid phosphatase activity and its inhibitor pesticide Dufulin by a functional metal–organic framework nanosensor for environment assessment and food safety

Cited by 24 publications

References 44 publications

Nonenzymatic Target-Driven DNA Nanomachine for Monitoring Malathion Contamination in Living Cells and Bioaccumulation in Foods

Nonenzymatic Target-Driven DNA Nanomachine for Monitoring Malathion Contamination in Living Cells and Bioaccumulation in Foods

Porous MB@Cd-MOF Obtained by Post-Modification: Self-Calibrated Fluorescent Turn-on Sensor for Highly Sensitive Detection of Carbaryl

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

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