Polydopamine-reinforced magnetization of zeolitic imidazolate framework ZIF-7 for magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from the air-water environment

Zhang, Suling; Yao, Weixuan; Ying, Jianbo; Zhao, Hongting

doi:10.1016/j.chroma.2016.05.039

Cited by 72 publications

(28 citation statements)

References 50 publications

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“…In this study, HSCCC was used to separate the cytotoxic compounds from the organic layer of P. baumii mycelium, according to our previously reported method with a minor modification [ 31 ]. The elution solvent of HSCCC with chloroform, methanol, water, and n -butanol (4:3:2:0.5, v/v/v/v ) was used in this study.…”

Section: Methodsmentioning

confidence: 99%

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

et al. 2017

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The inhibition of tumor-cell proliferationbyan organicsolvent extract from the solid-state fermentation of Phellinus baumii mycelia inoculated in rice medium was investigated in vitro. The active compounds inhibiting tumor-cell proliferation were characterized. Results revealed that all (petroleum ether, chloroform, ethyl acetate, and butanol) fractions inhibited tumor-cell proliferation in a dose-dependent fashion. The ethyl acetate extract had the highest inhibitory effecton tumor-cell proliferation, and the butanol fraction had the lowest. Six compounds were isolated and purified from the ethyl acetate extract of P. baumii mycelia by the tandem application of silica-gel column chromatography (SGCC), high-speed countercurrent chromatography (HSCCC), and preparative HPLC. These compounds were identified by NMR and electrospray ionization-mass spectrometry (ESI-MS) spectroscopic methods as ergosterol (RF1), ergosta-7,22-dien-3β-yl pentadecanoate (RF3), 3,4-dihydroxy benzaldehyde(RF6), inoscavinA (RF7), baicalein(RF10), and 24-ethylcholesta-5,22-dien-3β-ol (RF13). To further clarify the activity of these compounds, the cell-proliferation-inhibition tests of these compounds on various tumor cells were carried out and evaluatedin vitro. Results suggested that compounds RF6, RF7, and RF10 had potent inhibition effects on the proliferation of a series of tumor cell lines, including K562, L1210, SW620, HepG2, LNCaP, and MCF-7cells. These findings indicated that P. baumii mycelia produced by solid-state fermentation in rice canbe used to obtain active compounds with the ability to inhibittumor-cell proliferation.

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Section: Methodsmentioning

confidence: 99%

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

et al. 2017

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“…Zhang et al. used functional groups (–OH, –NH 2 ) offered by polydopamine (PDA) as an anchor to adhere ZIF‐7. In detail, they mixed PDA‐coated Fe 3 O 4 with ZIF‐7 to obtain Fe 3 O 4 @PDA/ZIF‐7.…”

Section: Applications Of Metal–organic Framework In Pretreatment Tecmentioning

confidence: 99%

Recent applications of metal–organic frameworks in sample pretreatment

Wang

Rui

2017

J of Separation Science

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Metal-organic frameworks are promising materials in diverse analytical applications especially in sample pretreatment by virtue of their diverse structure topology, tunable pore size, permanent nanoscale porosity, high surface area, and good thermostability. According to hydrostability, metal-organic frameworks are divided into moisture-sensitive and water-stable types. In the actual applications, both kinds of metal-organic frameworks are usually engineered into hybrid composites containing magnetite, silicon dioxide, graphene, or directly carbonized to metal-organic frameworks derived carbon. These metal-organic frameworks based materials show good extraction performance to environmental pollutants. This review provides a critical overview of the applications of metal-organic frameworks and their composites in sample pretreatment modes, that is, solid-phase extraction, magnetic solidphase extraction, micro-solid-phase extraction, solid-phase microextraction, and stir bar solid extraction.

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“…MOFs have been intensively investigated in the field of sample preparation . To date, several MOFs, including MIL‐101 , MIL‐53 , MOF‐199 , MOF‐5 , MOF‐177 , ZIF‐7 , ZIF‐8 , and UiO‐66 have been studied as adsorbents for extraction of various analytes from complex samples.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of magnetic zinc adeninate metal–organic frameworks for the extraction of benzodiazepines from urine and wastewater

Zhang

Yao

Fu³

et al. 2018

J of Separation Science

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In this study, an alternative method for synthesizing magnetic cobalt adeninate metal-organic frameworks was developed, and the synthesized materials were examined for their potential application for separating and enriching benzodiazepines from complex samples. Benzodiazepines, widely used as hypnotics, muscle relaxants, sedatives, and anxiolytics, are a class of drugs that require accurate detection and monitoring. Results showed that Fe O nanoparticles could be well anchored onto the external surface of cobalt adeninate metal-organic frameworks by using amino-silane as a linkage. Their adsorption of benzodiazepines was mainly promoted by intermolecular hydrogen binding, π-π interactions and electrostatic attraction. Their potential application was evaluated by extraction of benzodiazepines in urine and wastewater samples prior to liquid chromatography with mass spectrometry. Under optimum conditions, the calibration curves were linear with a correlation coefficient of ≥0.9928 in the concentration range of 10-5000 ng/L for lorazepam and 5-5000 ng/L for estazolam, chlordiazepoxide, alprazolam, midazolam and triazolam. The limits of detection were in the range of 0.71-2.49 ng/L. The percent of extraction recoveries were 80.2-94.5% for urine and 84.1-94.4% for wastewater, respectively. Results suggested that magnetic cobalt adeninate metal-organic frameworks could potentially be a promising material for enriching benzodiazepines from urine and wastewater with high accuracy and precision.

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Polydopamine-reinforced magnetization of zeolitic imidazolate framework ZIF-7 for magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from the air-water environment

Cited by 72 publications

References 50 publications

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

Recent applications of metal–organic frameworks in sample pretreatment

Fabrication of magnetic zinc adeninate metal–organic frameworks for the extraction of benzodiazepines from urine and wastewater

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