Pillarene functionalized polymer monolithic column for the solid-phase microextraction preconcentration of parabens

Liu, Dan; Song, Nan; Cheng, Yechun; Chen, Daixiong; Jia, Qiong; Yang, Ying‐Wei

doi:10.1039/c4ra09088h

Cited by 24 publications

(16 citation statements)

References 61 publications

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“…The peak at 1735 cm −1 originated from stretching of C═O band of carboxy group . The peak at 1620 cm −1 can be explained by the stretching of generated acyl amino bond . The above results reveal the carboxy groups of carboxylatopillar[5]aren can bond with amino groups of APTES via covalent bond on the inner wall of capillary, which further confirm the successful fabrication of carboxylatopillar[5]arene immobilized capillary.…”

Section: Resultssupporting

confidence: 53%

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Open‐tubular capillary electrochromatography using carboxylatopillar[5]arene as stationary phase

Kong

Chen

2017

Electrophoresis

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Pillar[n]arenes have achieved much interest in material chemistry and supramolecular chemistry due to unusual pillar shape structure and high selectivity toward guest. However, pillar[n]arenes have not yet been applied in capillary electrochromatography. This work at first time reports that carboxylatopillar[5]arene is used as a stationary phase in open-tubular capillary electrochromatography. Carboxylatopillar[5]arene not only possess the advantages of pillar[n]arenes but also provide free carboxy groups for immobilizing on the inner wall of capillary column via covalent bonding. The characterization of SEM and FT-IR indicated that carboxylatopillar[5]arene was successfully grafted on the inner wall of capillary. The baseline separation of model analytes including neutral, basic, and acidic compounds, nonsteroidal anti-inflammatory drugs and dansyl-amino acids have been achieved thanks to the electron-rich cavity of carboxylatopillar[5]arene and hydrophobic interactions between the analytes and stationary phase. The intraday, interday, and column-to-column precisions (RSDs) of retention time and peak area for the neutral analytes were all less than 3.34 and 9.65%, respectively. This work indicates that pillar[n]arenes have great potential in capillary electrochromatography as novel stationary phase.

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Section: Resultssupporting

confidence: 53%

“…For neutral compounds, all analytes migrate at same velocity as the EOF value. The separation of substituted benzenes was achieved by the interaction between analytes and stationary phase in OT‐CEC . Supporting Information Fig.…”

Section: Resultsmentioning

confidence: 99%

Open‐tubular capillary electrochromatography using carboxylatopillar[5]arene as stationary phase

Kong

Chen

2017

Electrophoresis

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“…Methacrylic acid modified by ZnO nanoparticles has been copolymerized with ethylene dimethacrylate cross‐linking monomer to form a polymer monolith microextraction unit for determination of fluoroquinolone antibiotics . Although not nanoparticles, poly(glycidyl methacrylate‐ co ‐ethylene dimethacrylate) monoliths can be also modified with carboxylatopillar 5 arene and used for the extraction of parabens from red wine samples .…”

Section: Polymer Monoliths For Separation Of Small Moleculesmentioning

confidence: 99%

Current trends in the development of porous polymer monoliths for the separation of small molecules

Urban

2015

J of Separation Science

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Since their introduction, the main application area of porous polymer monoliths has been in the fast gradient separation of synthetic and natural polymers. On the other hand, it has proven to be difficult to prepare polymer monoliths providing column efficiency comparable with particulate and monolithic silica-based stationary phases. During this decade, several experimental approaches were performed that aimed to improve this property of polymer monoliths. These protocols include variation in a polymerization time and preparation of monolithic stationary phases at limited conversion of the polymerization reaction, application of novel, highly ordered, nanomaterials, and/or hypercross-linking surface modification controlling the cross-link density of prepared monoliths. By using some of these approaches, monolithic stationary phases with column efficiency reaching 200,000 plates/m for low-molecular-weight compounds have been prepared. This review deals with preparation of polymer monoliths for the separation of small molecules and summarizes recent development in this field. At first, it focuses on monolithic columns morphology and repeatability of their preparation. Then, recent results in individual experimental protocols are discussed. Finally, possible future steps leading to the preparation of more efficient monolithic stationary phases are outlined.

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“…Recently, Yang et al extracted parabens Reproduced with permission from [138] © American Chemical Society (2012). Nanoparticles functionalized with supramolecular host-guest systems Review from red wine samples using CP [5]As-functionalized poly(GMA-co-EDMA) via strong interaction between the paraben and the cavity of CP [5]A [153].…”

Section: Nanoparticles Functionalized With Supramolecular Host-guest mentioning

confidence: 99%

Nanoparticles Functionalized with Supramolecular Host–Guest Systems for Nanomedicine and Healthcare

Song

Menz

et al. 2015

Nanomedicine (Lond.)

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Synthetic macrocyclic host compounds can interact with suitable guest molecules via noncovalent interactions to form functional supramolecular systems. With the synergistic integration of the response of molecules and the unique properties at the nanoscale, nanoparticles functionalized with the host-guest supramolecular systems have shown great potentials for a broad range of applications in the fields of nanoscience and nanotechnology. In this review article, we focus on the applications of the nanoparticles functionalized with supramolecular host-guest systems in nanomedicine and healthcare, including therapeutic delivery, imaging, sensing and removal of harmful substances. A large number of examples are included to elucidate the working mechanisms, advantages, limitations and future developments of the nanoparticle-supramolecule systems in these applications.

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Pillarene functionalized polymer monolithic column for the solid-phase microextraction preconcentration of parabens

Cited by 24 publications

References 61 publications

Open‐tubular capillary electrochromatography using carboxylatopillar[5]arene as stationary phase

Open‐tubular capillary electrochromatography using carboxylatopillar[5]arene as stationary phase

Current trends in the development of porous polymer monoliths for the separation of small molecules

Nanoparticles Functionalized with Supramolecular Host–Guest Systems for Nanomedicine and Healthcare

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