Novel magnetic fluorescence probe based on carbon quantum dots-doped molecularly imprinted polymer for AHLs signaling molecules sensing in fish juice and milk

Cui, Zhimeng; Li, Zhuanying; Jin, Yuting; Ren, Taotao; Chen, Jin'ai; Wang, Xianghong; Zhong, Keli; Tang, Lijun; Tang, Yiwei; Cao, Min‐Jie

doi:10.1016/j.foodchem.2020.127063

Cited by 65 publications

(25 citation statements)

References 45 publications

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“…The technology has been used to prepare polymers [called molecularly imprinted polymers (MIPs)] with specific capabilities for selective recognition for template molecules (Cantarella et al 2019;Pichon et al 2019;Yoshikawa et al 2016). MIPs offer many advantages, including ease of synthesis, good chemical stability, and reusability, which have prompted their application in some scientific and technical fields, such as chromatography, antibody mimics (Schirhagl 2014), sensors (Cui et al 2020;Kenawy et al 2018), and drug release systems (Cegłowski et al 2019). Nevertheless, the applications of MIPs suffer some limitations, due of their high costs, low binding capacity, incomplete removal of the template molecules, and poor adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

DMAEMA-grafted cellulose as an imprinted adsorbent for the selective adsorption of 4-nitrophenol

Lang

Shi

et al. 2021

Cellulose

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4-Nitrophenol is a highly toxic environmental pollutant. It is a challenge to selectively remove it from a mixture of various pollutants. Herein, we report a study on the selective adsorption of 4-nitrophenol by using molecularly imprinted polymers (MIPs). The imprinted polymer was synthesized using cellulose as a framework, onto which, the complex of the imprinting molecule (i.e., 4-nitrophenol) and a candidate material [namely, 2-(dimethylamino)ethyl methacrylate. DMAEMA] was grafted. The obtained MIP showed an excellent adsorption capacity with good selectivity. Also, the adsorption of 4-nitrophenol by the obtained MIP was fast and the adsorbent exhibited good recyclability. The thermodynamics and kinetics of the adsorption process of 4-nitrophenol by MIP was thoroughly studied, where an otherwise-equivalent non-imprinted polymer was used as a control in the experiments. The selectivity of the MIP adsorbent for 4-niteophenol was evaluated by two types of experiments: (1) adsorption experiments in single-component adsorbate systems (containing 4-nitrophenol, 3-nitrophenol, catechol, or hydroquinone), and (2) competitive adsorption experiments in binary adsorbate systems (containing 4-nitrophenol plus either 3-nitrophenol, catechol or hydroquinone). The selectivity coefficient for 4-nitrophenols was twice of those of other phenols (that were all around 2), indicative of the extent of the affinity of MIPs to these phenolic compounds. The recyclability of the adsorbent was evaluated for 5 adsorption–desorption cycles, where the adsorption capacity of the last cycle remained over 90.2% of that of the first cycle. Graphic Abstract

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Section: Introductionmentioning

confidence: 99%

DMAEMA-grafted cellulose as an imprinted adsorbent for the selective adsorption of 4-nitrophenol

Lang

Shi

et al. 2021

Cellulose

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“…Due to its good chemical stability and biocompatibility, SiO 2 has become the most widely applied MNPs surface modification material. According to the properties of the initiator, upon adding a suitable silane coupling agent, active functional groups such as aldehyde group, 51 vinyl group, 52,53 sulfhydryl group, 54 amino group 55,56 and hydroxyl group 57,58 can be modified on the magnetic SiO 2 . For example, Zhou et al 54 prepared hollow Fe 3 O 4 microspheres with small mass and good dispersion by hydrothermal method.…”

Section: Preparation and Surface Modification Of Mmipsmentioning

confidence: 99%

“…Fluorescence refers to the phenomenon in which electrons absorb energy to produce light radiation of different colors during the transition process after a substance is irradiated with light of a certain wavelength. 104 At present, in the determination of biomarkers, the commonly used fluorescent markers are quantum dots, 105 MOF, 106 carbon materials 58 and semiconductor nanoparticles. 107 CDs have become one of the popular fluorescent markers due to their low toxicity, good water solubility, excellent optical properties and high quantum yield.…”

Section: Application Of Mmips-cs In Biomarker Detectionmentioning

confidence: 99%

Application progress of magnetic molecularly imprinted polymers chemical sensors in the detection of biomarkers

Wang

Yang

Pang

et al. 2022

Analyst

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“…A carbon QDs-doped MMIP for selective fluorescence detection of N-acyl homoserine lactones was presented [ 120 ]. The magnetic core was composed of Fe 3 O 4 core covered by a MIP.…”

Section: Analytical Applications Of Mip Nanoparticlesmentioning

confidence: 99%

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

2020

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In recent years, molecularly imprinted polymers (MIPs) have become an excellent solution to the selective and sensitive determination of target molecules in complex matrices where other similar and relative structural compounds could coexist. Although MIPs show the inherent properties of the polymers, including stability, robustness, and easy/cheap synthesis, some of their characteristics can be enhanced, or new functionalities can be obtained when nanoparticles are incorporated in their polymeric structure. The great variety of nanoparticles available significantly increase the possibility of finding the adequate design of nanostructured MIP for each analytical problem. Moreover, different structures (i.e., monolithic solids or MIPs micro/nanoparticles) can be produced depending on the used synthesis approach. This review aims to summarize and describe the most recent and innovative strategies since 2015, based on the combination of MIPs with nanoparticles. The role of the nanoparticles in the polymerization, as well as in the imprinting and adsorption efficiency, is also discussed through the review.

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Novel magnetic fluorescence probe based on carbon quantum dots-doped molecularly imprinted polymer for AHLs signaling molecules sensing in fish juice and milk

Cited by 65 publications

References 45 publications

DMAEMA-grafted cellulose as an imprinted adsorbent for the selective adsorption of 4-nitrophenol

DMAEMA-grafted cellulose as an imprinted adsorbent for the selective adsorption of 4-nitrophenol

Application progress of magnetic molecularly imprinted polymers chemical sensors in the detection of biomarkers

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

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