Development of molecularly imprinted polymer for the selective recognition of the weakly interacting fenamiphos molecule

Nasraoui, Chaima; Jaoued-Grayaa, Najeh; Vanoye, Laurent; Chevalier, Yves; Hbaïeb, Souhaïra

doi:10.1016/j.eurpolymj.2022.111441

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…This is the reason that numerous sites with a high affinity for template molecules on the OMMIPs surface enabled the analytes to be more easily adsorbed. 41 Either Langmuir or Freundlich adsorption model was further used to fit the static adsorption data to elucidate its mechanism (Figure 3C−F). According to the correlation coefficient (R 2 ), the LI fitted the data more adequately than the FI (Table S8), indicating that CPF and DDVP were more likely to be adsorbed as a single-molecule layer on the surface of OMMIPs and OMNIPs.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…In addition, the Q e values of CPF and DDVP for OMMIPs became significantly higher than those for OMNIPs at the beginning of 0.5 mM (Figure A,B). This is the reason that numerous sites with a high affinity for template molecules on the OMMIPs surface enabled the analytes to be more easily adsorbed . Either Langmuir or Freundlich adsorption model was further used to fit the static adsorption data to elucidate its mechanism (Figure C–F).…”

Section: Resultsmentioning

confidence: 99%

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“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

Wang

Zhang

et al. 2023

J. Agric. Food Chem.

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Organophosphorus magnetic molecularly imprinted polymers (OMMIPs) with high adsorption capacities (13.5–83.8 mg g–1) and good applicability were developed for efficient extraction and pre-concentration of multiple organophosphorus pesticides (OPPs) from foodstuffs. The OMMIP-based sample pretreatment coupled with low-temperature plasma ambient ionization mass spectrometry achieved rapid screening for 90 kinds of pesticides at default maximum residue limits of National Standard (GB 2763-2021) in nine types of agro-products. The OMMIP-based liquid chromatography coupled with triple quadrupole mass spectroscopy assay demonstrated rapid magneto-actuated isolation, efficient removal of matrix interference, and reduced signal suppression, resulting in a short detection time (30 min), compliant recoveries (60.1–127.5%), low detection limits (0.0001–0.073 μg g–1), and simultaneous quantification of multi-pesticides. The yolk–shell-structured OMMIPs (Fe3O4@mTiO2@MIPs) demonstrated additional benefits of excellent ultraviolet light-driven catalytic degradation activity toward OPPs, making them eco-friendly for self-cleaning regeneration and reducing laboratory pesticide discharge. This work highlights the potential of OMMIPs for high-throughput and in situ pesticide monitoring in modern large-scale agricultural markets.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

Wang

Zhang

et al. 2023

J. Agric. Food Chem.

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“…The imprinting factor of prepared MIP was 2.14 with coefficient selectivity 3.43. Higher IF and α indicated that the active sites could recognize molecule target even in the existence of an interference which has similar structure with target molecule 50–53 :…”

Section: Resultsmentioning

confidence: 99%

Core–shell magnetic‐modified molecular imprinted polymer (Fe₃O₄@SiO₂@MIP) for dihydroartemisinin recognition and separation

Fauzia¹,

Andreas²,

Muzdalifah³

et al. 2023

Polymers for Advanced Techs

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Dihydroartemisinin (DHA) is an artemisinin derivative compounds that employs as malaria drug. Extraction and purification artemisinin derivatives by liquid extraction utilize organic solvent and results in mixtures of compounds requiring further purification process. In this study, core-shell magnetic molecular imprinted polymer (Fe 3 O 4 @SiO 2 @MIP) has been synthesized for DHA isolation. Methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) were employed as monomer and cross-linker, respectively. Fe 3 O 4 was modified by tetraethyl orthosilicate (TEOS) to enhance stability and prevent aggregation. Nonimprinted polymer (Fe 3 O 4 @SiO 2 @NIP) was also prepared as a comparison. The Fourier transform infrared (FTIR) represented O O stretching of O O C bond (1,2,4-trioxane ring) at 825 cm À1 denoting that DHA has been successfully attached to MIP. Meanwhile, the morphology of Fe 3 O 4 @SiO 2 @MIP and Fe 3 O 4 @SiO 2 @NIP revealed uniform spherical-like form particle due to core-shell magnetic modification. The Brunaeur-Emmett-Teller (BET) revealed S BET of Fe 3 O 4 @SiO 2 @MIP and Fe 3 O 4 @SiO 2 @-NIP was 70.16 and 19.56 m 2 g À1 , respectively. The prepared materials owned a superparamagentic behavior as indicated by narrow loop and low remanence and coercivity.The binding study indicated that Fe 3 O 4 @SiO 2 @MIP and Fe 3 O 4 @SiO 2 @NIP were achieved optimum condition at pH 4, contact time 90 min and initial concentration 8 mg L À1 with adsorption capacity (q exp ) 1.026 mg g À1 for Fe 3 O 4 @SiO 2 @MIP and 0.806 for Fe 3 O 4 @SiO 2 @NIP. The selectivity of Fe 3 O 4 @SiO 2 @MIP was more than 60% in all over the ratio. The prepared MIP exhibited good selectivity toward DHA with imprinting factor (IF) 2.14 and selectivity coefficient (α) 3.43. The percent adsorption of Fe 3 O 4 @-SiO 2 @MIP did not changed after three times adsorption-desorption cycles. The result exhibited that Fe 3 O 4 @SiO 2 @MIP could effectively be used for DHA separation.

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“…However, this selection becomes more complex when the template molecule lacks functional groups that enable well-defined interactions with other molecules. 96 The template's functional group, whether it be amino, carboxyl, hydroxyl, amide, or ester, plays a vital role in MIP performance. Through the creation of custom-designed binding sites, MIPs not only recognize the size and shape of the template but also respond to the functional groups present on the molecule.…”

Section: Mechanism Approaches and Synthesis Strategies Of Mipsmentioning

confidence: 99%

Application of molecularly imprinted polymers (MIPs) as environmental separation tools

Gkika,

Tolkou,

Lambropoulou

et al. 2024

RSC Appl. Polym.

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Development of molecularly imprinted polymer for the selective recognition of the weakly interacting fenamiphos molecule

Cited by 9 publications

References 29 publications

“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

Core–shell magnetic‐modified molecular imprinted polymer (Fe₃O₄@SiO₂@MIP) for dihydroartemisinin recognition and separation

Application of molecularly imprinted polymers (MIPs) as environmental separation tools

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Development of molecularly imprinted polymer for the selective recognition of the weakly interacting fenamiphos molecule

Cited by 9 publications

References 29 publications

“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

“UV-Driven Self-Cleaning” Magnetic Molecularly Imprinted Absorbents Coupled with LTP-MS and LC-TQ-MS for Rapid High-Throughput Screening and Quantification of Organophosphorus Pesticides in Agro-products

Core–shell magnetic‐modified molecular imprinted polymer (Fe3O4@SiO2@MIP) for dihydroartemisinin recognition and separation

Application of molecularly imprinted polymers (MIPs) as environmental separation tools

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Product

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Core–shell magnetic‐modified molecular imprinted polymer (Fe₃O₄@SiO₂@MIP) for dihydroartemisinin recognition and separation