Preparation of magnetic indole-3-acetic acid imprinted polymer beads with 4-vinylpyridine and β-cyclodextrin as binary monomer via microwave heating initiated polymerization and their application to trace analysis of auxins in plant tissues

Zhang, Yi; Li, Yuanwen; Hu, Yuling; Li, Gongke; Chen, Yue‐Qin

doi:10.1016/j.chroma.2010.09.059

Cited by 115 publications

(59 citation statements)

References 32 publications

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“…As a result, the extensive research should be done to investigate the biochemical and physiological processes caused by auxins and to understand the influence of these plant growth factors on human health [26,27]. Although phytohormones are moderately toxic substances when present at physiological levels, their low concentration in plant tissues and the existence of various interfering substances make their analysis extremely difficult [26,31]. Moreover, applied to the different crops even at trace amounts for a long time, auxins can accumulate in the soil and their residual levels should be determined [27].…”

Section: Aptesmentioning

confidence: 99%

Aminopropyl-modified mesoporous molecular sieves as efficient adsorbents for removal of auxins

Moritz

Geszke-Moritz

2015

Applied Surface Science

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Section: Aptesmentioning

confidence: 99%

Aminopropyl-modified mesoporous molecular sieves as efficient adsorbents for removal of auxins

Moritz

Geszke-Moritz

2015

Applied Surface Science

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“…Consequently, MIPs have been widely used to selectively extract analytes from biological, environmental, pharmaceutical, and food samples [21][22][23][24][25][26]. MIPs as alternative sample pretreatment materials exhibited high selectivity and high affinity constants in the isolation and enrichment of trace auxins from plant tissue [27][28][29][30]. As far as the MIP applications are concerned, MIPs offer the possibility of achieving selective solid-phase extraction, so-called molecularly imprinted solid-phase extraction (MI-SPE) [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Monolithic molecularly imprinted solid-phase extraction for the selective determination of trace cytokinins in plant samples with liquid chromatography–electrospray tandem mass spectrometry

Ruan

Sheng-hua

et al. 2012

Anal Bioanal Chem

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Cytokinins (CTKs) are a class of growth-regulating hormones involved in various physiological and developmental processes. More novel analytical methods for the accurate identification and quantitative determination of trace CTKs in plants have been desired to better elucidate the roles of CTKs. In this work, a novel method based on monolithic molecularly imprinted solid-phase extraction followed by liquid chromatography-electrospray tandem mass spectrometry (mMI-SPE-LC-MS/MS) was developed for accurate determination of four CTKs in plant samples. The molecularly imprinted polymer monolith was prepared by using kinetin as the template in syringes and exhibited specific recognition ability for the four CTKs in comparison with that of non-imprinted polymer monolith. Several factors affecting the extraction performance of mMI-SPE, including the pH of loading sample solution, the nature and volume of elution solvent, the flow rate of sample loading, and sample volume, were investigated, respectively. Under the optimized conditions, the proposed mMI-SPE-LC-MS/MS method was successfully applied in the selective extraction and determination of four CTKs in plant tissues, and it offers detection limits (S/N = 3) of 104, 113, 130, and 89 pg/mL and mean recoveries of 85.9%, 79.3%, 73.5%, and 70.1% for kinetin, kinetin glucoside, trans-zeatin, and meta-topolin (mT), respectively, with the corresponding RSDs less than 15%.

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“…229 Suspension polymerization is a simple method suited to the preparation of porous M-MIPs with spherical or particle shape, since the Fe 3 O 4 magnetic particles need no functionalization. Several research groups 66,[211][212][213][214][215][216][217][218][219] have reported the synthesis of M-MIPs by suspension polymerization. For example, Li et al developed a simple and direct method for the preparation of M-MIP beads, which was based on suspension polymerization, using Fe 3 O 4 particles as magnetic cores, atrazine as a template and MAA as a functional monomer.…”

Section: Special Strategies Of Mit For Mipsmentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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Preparation of magnetic indole-3-acetic acid imprinted polymer beads with 4-vinylpyridine and β-cyclodextrin as binary monomer via microwave heating initiated polymerization and their application to trace analysis of auxins in plant tissues

Cited by 115 publications

References 32 publications

Aminopropyl-modified mesoporous molecular sieves as efficient adsorbents for removal of auxins

Aminopropyl-modified mesoporous molecular sieves as efficient adsorbents for removal of auxins

Monolithic molecularly imprinted solid-phase extraction for the selective determination of trace cytokinins in plant samples with liquid chromatography–electrospray tandem mass spectrometry

Molecular imprinting: perspectives and applications

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