We report the template-free fabrication of three-dimensional hierarchical nanostructures, i.e., three-dimensional interconnected magnetic chemically modified graphene oxide (3D-Mag-CMGO), through a simple and low-cost self-assembly process using one-pot reaction based on solvothermal method. The excellent properties of the 3D-Mag-CMGO are characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), FTIR, elementary analyzer (EA) and X-ray photoelectron spectroscopy (XPS). The easiness-to-handle of the magnetic dispersive solid phase extraction (Mag-dSPE) procedure is developed for preconcentration of 21 allergenic disperse dyes from river water. The obtained results show the higher extraction capacity of 3D-Mag-CMGO with recoveries between 80.0-112.0%. Furthermore, an ultra-fast liquid chromatography-tandem quadrupole mass spectrometry (UFLC-MS/MS) method for determination of 21 allergenic disperse dyes in river at sub-ppt levels has been developed with pretreatment of the samples by Mag-dSPE. The limits of quantification (LOQs) for the allergenic disperse dyes are between 0.57-34.05ng/L. Validation results on linearity, specificity, trueness and precision, as well as on application to the analysis of 21 allergenic disperse dyes in fifty real samples demonstrate the applicability to environment monitoring analysis.
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http://dx.doi.org/10.1016/j.chroma.2015.12.089 | DOI Listing |
Food Chem
December 2024
School of Chemical Engineering, Sichuan University, Chengdu 610065, China. Electronic address:
FeO is a cost-effective and strong magnetic core, meanwhile polymerizable deep eutectic solvents (PDESs) are considered to have excellent performance and biocompatibility in separation and material fields. Therefore, the aim was to prepare magnetic microspheres (P(DES-co-St)@FeO) with FeO as the core and PDESs (choline chloride/acrylic acid, 1:2; choline chloride/itaconic acid, 1:1)-styrene (St) copolymer as the shell for binding of target protein. The resulting microspheres exhibited ideal magnetic responsiveness (14.
View Article and Find Full Text PDFFood Res Int
December 2024
College of Food Science, Shenyang Agricultural University, Shenyang 110866, China. Electronic address:
A growing body of evidence suggests that protein structure can be uniquely altered by lipids. However, the role of lecithin on the digestibility and immunoreactivity of allergenic protein remains poorly understood. Therefore, we investigated the impact of different protein/lecithin (P:L) ratios (5:1, 10:1, 20:1, 30:1 and 40:1) on the digestion properties, peptide profiles and immunoreactivity of β-conglycinin in vitro simulated gastrointestinal digestion.
View Article and Find Full Text PDFSci Data
October 2024
Finnish Meteorological Institute, Helsinki, Finland.
The dataset presents a 43 year-long reanalysis of pollen seasons for three major allergenic genera of trees in Europe: alder (Alnus), birch (Betula), and olive (Olea). Driven by the meteorological reanalysis ERA5, the atmospheric composition model SILAM predicted the flowering period and calculated the Europe-wide dispersion pattern of pollen for the years 1980-2022. The model applied an extended 4-dimensional variational data assimilation of in-situ observations of aerobiological networks in 34 European countries to reproduce the inter-annual variability and trends of pollen production and distribution.
View Article and Find Full Text PDFFront Allergy
August 2024
Clinical Immunology, Angioedema and Allergy Unit, Center for Autoimmune Diseases, Sheba Medical Center, Tel Hashomer, Israel.
J Hazard Mater
December 2024
Agricultural and Biosystems Engineering Department, South Dakota State University, Brookings, SD 57007, USA. Electronic address:
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