Triple modal aptasensor arrays driven by CHA-mediated DNAzyme for signal-amplified atrazine pesticide accumulation monitoring in agricultural crops

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 135172 - 135172

Published: July 10, 2024

Language: Английский

---

Smartphone-assisted paper-based analytical device integrated with photo-responsive oxidase mimetic for colorimetric detection of carbosulfan

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: 428, P. 137231 - 137231

Published: Jan. 5, 2025

Language: Английский

---

Kinetics Difference-driven Organophosphorus Hydrolase-like Nanozyme-Coded Pattern for Identifying p-Nitrophenyl Pesticides

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Organophosphorus pesticides (OPs) are widely used in agricultural production, posing a great threat to human health and the environment. Given that different OPs present toxicology toxicities, identifying individual pesticide residues becomes important for assessing food safety environmental implications. In this work, kinetics difference-driven analyte hydrolysis strategy is proposed first time validated identify p-nitrophenyl by developing an organophosphorus hydrolase-like nanozyme-coded sensor array. Ultrasmall bare CeO2 nanoparticles were synthesized employed as only sensing unit catalyze of multiple analytes. With catalytic preferences differences under identical reaction conditions, five common analogues (methyl-paraoxon, paraoxon, methyl-parathion, parathion, fenitrothion) offered discriminable colors. By coupling color fingerprints with pattern recognition, accurate identification their mixtures at variety concentrations ratios was verified laboratory practical scenarios. Attractively, apart from excellent performance convenient operation, hydrolytic presents strong resistance against redox substances often cause interference previous oxidoreductase-based arrays. Our study provides new paradigm discriminating specific precisely, showing promising applications multitarget analysis complex matrices.

Language: Английский

---

Enhanced Photocatalytic Degradation of Chlorsulfuron by MoS₂/MIL101(Fe) S‐Scheme Heterojunction: A Conversion Mechanism Dominated by Electrons and Long‐Lifetime Reactive Species

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Altering the generation route of reactive species is a potent means to augment photocatalytic activity. In this study, MoS 2 /MIL‐101(Fe) S‐scheme heterojunction (MF2) prepared using water/solvent thermal method for degradation chlorsulfuron. Driven by internal electric field, local electron density MF2 redistributed, thus enhancing adsorption O . This promoted charge transfer generate e − , •, and H efficient oxidation It confirmed that photogenerated electrons long‐lifetime (• ) played major role. The activity chlorsulfuron much higher than (42.21 times) MIL‐101(Fe) (4.06 times). mechanism verified experimental studies Density Functional Theory simulation calculations. addition, exhibited great potential practical applications. work provided new insights into construction heterojunctions species‐dominated conversion mechanisms.

Language: Английский

---

Colorimetric – fluorescence – photothermal tri-mode sensor array combining the machine learning method for the selective identification of sulfonylurea pesticides

Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: 277, P. 117286 - 117286

Published: Feb. 19, 2025

Language: Английский

---

Review: Nanozyme-based point-of-care testing for portable and on-site monitoring of food contaminants

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 105062 - 105062

Published: May 1, 2025

Language: Английский

---

Metal-organic framework-sealed heterogeneous nanoenzyme: A dual-mode core–shell sensor for sensitive determination of the chlorpyrifos residue in environment and bioaccumulation in food

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157693 - 157693

Published: Nov. 1, 2024

Language: Английский

---

Versatile laccase-mimicking enzyme for dye decolorization and tetracyclines identification upon a colorimetric array sensor

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 483, P. 136683 - 136683

Published: Nov. 26, 2024

Language: Английский

---

Calixarene-Based Supramolecular Sensor Array for Pesticide Discrimination

Sensors, Journal Year: 2024, Volume and Issue: 24(12), P. 3743 - 3743

Published: June 8, 2024

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

Language: Английский

---

Highly Selective Colorimetric and Smartphone-Based Paper Assay Using Malic Acid–Functionalized Silver Nanoparticles for Thiram Detection

Published: Jan. 1, 2024

Language: Английский

---