Background-free sensing platform for on-site detection of carbamate pesticide through upconversion nanoparticles-based hydrogel suit

Su, Dandan; Zhao, Xu; Yan, Xu; Han, Xiaosong; Zhu, Zhifang; Wang, Chenguang; Jia, Xiaoteng; Liu, Fangmeng; Sun, Peng; Liu, Xiaomin; Lu, Geyu

doi:10.1016/j.bios.2021.113598

Cited by 49 publications

(23 citation statements)

References 43 publications

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“…After the addition of carbaryl, the FT-IR spectra showed that the N−C=O symmetric stretching vibration of the amide group appeared at 1540 cm −1 , and 1714 cm −1 was the location of the characteristic absorption peak of carbaryl, indicating that the AuNPs reacted with the amide group of carbaryl. 34 In addition, the XPS in Figure S4 was consistent with the FT-IR analysis. As shown in Figure S4E,F, N 1s can be deconvoluted into two peaks with binding energies at 400.28 and 398.48 eV attributable to amino and pyrrole nitrogen, and S 2p can be deconvoluted into two peaks with binding energies at 166.98 and 162.68 eV corresponding to S− C and S−Au, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 97%

Ultrasensitive and On-Site Detection of Carbaryl Pesticides via Dual-Mode Nanosensors Utilizing Portable Devices

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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High-efficiency detection technologies of carbaryl residues are significant due to their adverse effects on the environment and human health. To achieve accurate in situ analysis, we designed a portable device integrated with a smartphone sensing platform for rapid, visual quantitative determination of carbaryl via colorimetric and fluorescent signals. Amino-modified gold nanoparticles (AuNPs), blue-emitting silicon quantum dots (Si QDs), and red-emitting cadmium telluride quantum dots (CdTe QDs) were used as opto-sensing centers. The carbaryl triggered the agglomeration of the as-synthesized AuNPs by an electrostatic effect, resulting in a specific change in UV–vis absorption. The blue fluorescence of Si QDs recovered, while the red fluorescence of CdTe QDs quenched, enabling fluorescence color variation from red to blue for visual monitoring. The ratiometric fluorescent signals are available for quantitative analysis in the range of 6 to 200 μM, with a limit of 16.3 nM for fluorescence detection and 49.6 nM for colorimetric sensitivity detection. Coupling widely used three-dimensional print and application software, we constructed the smartphone platform to output the ratio of red and blue channel values of captured fluorescence images to meet the needs of on-site analysis in real samples. This work imposed great improvement in ratiometric sensing for carbamate pesticide residues and broadened the portable quantitative sensing device in chemical sensing applications.

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Section: ■ Results and Discussionmentioning

confidence: 97%

Ultrasensitive and On-Site Detection of Carbaryl Pesticides via Dual-Mode Nanosensors Utilizing Portable Devices

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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“…In consideration of these deficiencies, fluorescence-based strategies arouse increasing attraction for OP detection on the basis of their operational simplicity, high sensitivity, and good selectivity. , With the development of nanotechnologies, various nanomaterials, such as quantum dots, , metal nanoclusters, and upconversion nanoparticles, − have been employed for designing fluorescence sensing platforms. However, these fluorescence-based strategies are almost entirely conducted in solution, which requires multi-step operations with complex procedures.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dot-Anchored Cobalt Oxyhydroxide Composite-Based Hydrogel Sensor for On-Site Monitoring of Organophosphorus Pesticides

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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The development of a portable, quantitative, and user-friendly sensor for on-site monitoring of organophosphorus pesticides (OPs) is significantly urgent to guarantee food safety. Herein, a carbon dot/cobalt oxyhydroxide composite (CD/CoOOH)-based fluorescent hydrogel sensor is constructed for precisely quantifying OPs using a homemade portable auxiliary device. As a fluorescence signal indicator, the orange-emissive CD/CoOOH composite is encapsulated into an agarose hydrogel kit for amplifying the detection signals, shielding background interference, and enhancing stability. Acetylcholinesterase (AChE) catalyzes the hydrolysis of the substrate to produce thiocholine, which induces the decomposition of CoOOH and makes the fluorescence enhancement of the hydrogel platform possible. OPs can specifically block the AChE activity to limit thiocholine production, resulting in a decrease in platform fluorescence. The image color of the fluorescent hydrogel kit is transformed into digital information using a homemade auxiliary device, achieving on-site quantitative detection of paraoxon (model target) with a detection limit of 10 ng mL–1. Harnessing CD/CoOOH composite signatures, hydrogel encapsulation, and portable optical devices, the proposed fluorescence hydrogel platform demonstrated high sensitivity and good anti-interference performance in agricultural sample analysis, indicating considerable potential in the on-site application.

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“…Carbaryl is one of the most common carbamate insecticides, named 1-naphthalene carbamate. Carbaryl enters the ecological food chain and endangers human health due to the biological accumulation and soil accumulation of carbaryl [ 5 , 6 , 7 , 8 ]. Moreover, carbaryl interferes with the hydrolysis of neurotransmitter acetylcholine (ATCl) and affects the normal secretion of the neurotransmitter.…”

Section: Introductionmentioning

confidence: 99%

A Novel Paper-Based Electrochemical Biosensor Based on N,O-Rich Covalent Organic Frameworks for Carbaryl Detection

Xiao

Wang

et al. 2022

Biosensors

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A new N,O-rich covalent organic framework (COFDHNDA-BTH) was synthesized by an amine-aldehyde condensation reaction between 2,6-dialdehyde-1,5-dihydroxynaphthalene (DHNDA) and 1,3,5-phenyltriformylhydrazine (BTH) for carbaryl detection. The free NH, OH, and C=O groups of COFDHNDA-BTH not only covalently couples with acetylcholinesterase (AChE) into the pores of COFDHNDA-BTH, but also greatly improves the catalytic activity of AChE in the constrained environment of COFDHNDA-BTH’s pore. Under the catalysis of AChE, the acetylthiocholine (ATCl) was decomposed into positively charged thiocholine (TCl), which was captured on the COFDHNDA-BTH modified electrode. The positive charges of TCl can attract anionic probe [Fe(CN)6]3−/4− on the COFDHNDA-BTH-modified electrode to show a good oxidation peak at 0.25 V (versus a saturated calomel electrode). The carbaryl detection can inhibit the activity of AChE, resulting in the decrease in the oxidation peak. Therefore, a turn-off electrochemical carbaryl biosensor based on a flexible carbon paper electrode loaded with COFDHNDA-BTH and AChE was constructed using the oxidation peak of an anionic probe [Fe(CN)6]3−/4− as the detection signal. The detection limit was 0.16 μM (S/N = 3), and the linear range was 0.48~35.0 μM. The sensor has good selectivity, repeatability, and stability, and has a good application prospect in pesticide detection.

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Background-free sensing platform for on-site detection of carbamate pesticide through upconversion nanoparticles-based hydrogel suit

Cited by 49 publications

References 43 publications

Ultrasensitive and On-Site Detection of Carbaryl Pesticides via Dual-Mode Nanosensors Utilizing Portable Devices

Ultrasensitive and On-Site Detection of Carbaryl Pesticides via Dual-Mode Nanosensors Utilizing Portable Devices

Carbon Dot-Anchored Cobalt Oxyhydroxide Composite-Based Hydrogel Sensor for On-Site Monitoring of Organophosphorus Pesticides

A Novel Paper-Based Electrochemical Biosensor Based on N,O-Rich Covalent Organic Frameworks for Carbaryl Detection

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