Preparation of molecularly imprinted polymers based on magnetic carbon nanotubes for determination of sulfamethoxazole in food samples

Zhao, Yingran; Bi, Changfen; He, Xiwen; Chen, Langxing; Zhang, Yukui

doi:10.1039/c5ra13183a

Cited by 53 publications

(25 citation statements)

References 52 publications

(46 reference statements)

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“…Molecularly imprinted polymers (MIPs) can selectively and efficiently recognize different target molecules due to their adjustable shape, size, and functional groups . Since their chemical robustness, physical and thermal stability, low preparation cost, reusability, and high specificity, MIPs are ideal adsorbents for SPE.…”

Section: Introductionmentioning

confidence: 99%

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Highly selective and efficient imprinted polymers based on carboxyl‐functionalized magnetic nanoparticles for the extraction of gallic acid from pomegranate rind

Zhang

Yue

et al. 2017

J of Separation Science

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With the combined surface imprinting technique and immobilized template strategy, molecularly imprinted magnetic nanoparticles were successfully prepared and coupled with high-performance liquid chromatography to selectively separate and determine gallic acid from the pomegranate rind. On the surface of carboxyl-functionalized magnetic nanospheres, thin imprinting shells were formed using dopamine as monomer and crosslinker. The characteristics, polymerization conditions, and adsorption performances of the resultant nanomaterials were investigated in detail. In addition of good crystallinity, satisfactory magnetism, and uniform morphology of the obtained polymers, they had rapid binding kinetics, high adsorption capacity, and favorable reusability. In the mixed solution of four hydroxybenzoic acids, the prepared nanomaterials have an excellent selectivity to gallic acid with an imprinting factor of as high as 17.5. Therefore, the polymers have great potentials in specific extraction and enrichment of gallic acid from the complex natural resources.

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Section: Introductionmentioning

confidence: 99%

“…their adjustable shape, size, and functional groups [14][15][16][17]. Since their chemical robustness, physical and thermal stability, low preparation cost, reusability, and high specificity, MIPs are ideal adsorbents for SPE.…”

mentioning

confidence: 99%

Highly selective and efficient imprinted polymers based on carboxyl‐functionalized magnetic nanoparticles for the extraction of gallic acid from pomegranate rind

Zhang

Yue

et al. 2017

J of Separation Science

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“…The analytes were eluted with methanol-acetic acid (9:1, v / v ), the eluate was reduced and the residue was reconstituted with acetonitrile (1 mL). In comparison with the respective NIP, MIP adsorption capacity for SMO was higher, with Q max values of 864.9 μg/g, while binding specificity study between SMO, SMZ, sulfadimethoxine, sulfamerazine and sulfameter showed MIP selectivity over SMO and the imprinting factors were 10 for SMO, 1.7 for SMZ, 1.9 for sulfadimethoxine, 2.3 for sulfamerazine and 1.5 for sulfameter [ 86 ].…”

Section: Mip Applications For the Extraction Of Antibiotics In Milmentioning

confidence: 99%

Molecularly Imprinted Polymers as Extracting Media for the Chromatographic Determination of Antibiotics in Milk

Bitas

Samanidou

2018

Molecules

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Milk-producing animals are typically kept stationary in overcrowded large-scale farms and in most cases under unsanitary conditions, which promotes the development of infections. In order to maintain sufficient health status among the herd or promote growth and increase production, farmers administer preventative antibiotic doses to the animals through their feed. However, many antibiotics used in cattle farms are intended for the treatment of bacterial infections in humans. This results in the development of antibiotic-resistant bacteria which pose a great risk for public health. Additionally, antibiotic residues are found in milk and dairy products, with potential toxic effects for the consumers. Hence the need of antibiotic residues monitoring in milk arises. Analytical methods were developed for the determination of antibiotics in milk, with key priority given to the analyte extraction and preconcentration step. Extraction can benefit from the production of molecularly imprinted polymers (MIPs) that can be applied as sorbents for the extraction of specific antibiotics. This review focuses on the principals of molecular imprinting technology and synthesis methods of MIPs, as well as the application of MIPs and MIPs composites for the chromatographic determination of various antibiotic categories in milk found in the recent literature.

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“…Surface imprinting technique, which introduces solid materials as supports for imprinting polymerization, was developed to improve the binding capacity and site accessibility of imprinted materials . Several nanomaterials have been used as solid supports, including silica nanoparticles , carbon nanotubes , nanofibers , and magnetic nanoparticles . Among these nanostructured materials, magnetic Fe 3 O 4 nanoparticles (Fe 3 O 4 NPs) have exhibited promising applications due to their magnetic susceptibility, good biocompatibility, and low toxicity .…”

Section: Introductionmentioning

confidence: 99%

Preparation and application of magnetic molecularly imprinted nanoparticles for the selective extraction of osthole in Libanotis Buchtomensis herbal extract

Tang

Hao

et al. 2016

J of Separation Science

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In this work, novel magnetic molecularly imprinted polymers were prepared for the selective extraction of osthole from Libanotis Buchtomensis herbal extract. During the synthesis process, double bonds grafted on the surface of Fe3 O4 nanoparticles could not only drive the temple molecules to locate onto the surface of vinyl-functionalized magnetic nanoparticles by π-π conjugation, which makes the distribution of binding sites ordered, but also direct the occurrence of imprinting polymerization at the surface of magnetic nanoparticles by the copolymerization of vinyl terminal groups with functional monomers and cross-linking agent. The characteristics of the resulting polymers were evaluated by transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and vibrating sample magnetometry. Adsorption kinetics, isotherms, selectivity, reproducibility, and reusability were discussed, which suggest that the obtained nanomaterials possess rapid binding kinetics, high adsorption capacity of 17.65 mg/g, and favorable selectivity for the target molecule. Satisfactory reproducibility and reusability were verified as well. Meanwhile, the resultant imprinted nanoparticles were successfully applied to selectively separate osthole from the herbal extract, which show great potential in extracting active ingredients from traditional Chinese medicine.

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Preparation of molecularly imprinted polymers based on magnetic carbon nanotubes for determination of sulfamethoxazole in food samples

Abstract: An efficient approach was developed to synthesize the imprinted magnetic carbon nanotubes nanocomposite and apply for sulfamethoxazole enrichment from milk and honey samples.

Cited by 53 publications

References 52 publications

Highly selective and efficient imprinted polymers based on carboxyl‐functionalized magnetic nanoparticles for the extraction of gallic acid from pomegranate rind

Highly selective and efficient imprinted polymers based on carboxyl‐functionalized magnetic nanoparticles for the extraction of gallic acid from pomegranate rind

Molecularly Imprinted Polymers as Extracting Media for the Chromatographic Determination of Antibiotics in Milk

Preparation and application of magnetic molecularly imprinted nanoparticles for the selective extraction of osthole in Libanotis Buchtomensis herbal extract

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