Microwave-assisted synthesis of poly(ionic liquid)-coated magnetic nanoparticles for the extraction of sulfonylurea herbicides from soil for HPLC

2015 ◽  
Vol 7 (7) ◽  
pp. 3246-3252 ◽  
Author(s):  
Lu Yang ◽  
Ping Su ◽  
Xiaonan Chen ◽  
Ruizhe Zhang ◽  
Yi Yang
Keyword(s):  
Ionic Liquid ◽  
Magnetic Nanoparticles ◽  
Extraction Procedure ◽  
Microwave Assisted Synthesis ◽  
Sulfonylurea Herbicides ◽  
Microwave Assisted ◽  
Poly Ionic Liquid

Schematic illustration for synthesis of Fe3O4@SiO2@PIL, and extraction procedure of SUHs.

scholarly journals Application of Magnetic Nanoparticles Coated with Crosslinked Zwitterionic Poly(ionic liquid)s for the Extraction of Oligonucleotides

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3146
Author(s):  
Łukasz Nuckowski ◽  
Krzysztof Dzieszkowski ◽  
Zbigniew Rafiński ◽  
Sylwia Studzińska
Keyword(s):  
Ionic Liquid ◽  
Magnetic Nanoparticles ◽  
Solid Phase Extraction ◽  
Ammonium Acetate ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Poly Ionic Liquid ◽  
The Impact

Magnetic nanoparticles coated with zwitterionic poly(ionic liquid)s were applied for dispersive solid-phase extraction of oligonucleotides. The materials were synthesized by miniemulsion copolymerization of ionic liquids and divinylbenzene on magnetic nanoparticles. The functional monomers contain a positively charged imidazolium ring and one of the anionic groups: derivatives of acetate, malonate, or butyl sulfonate ions. Adsorption of unmodified DNA oligonucleotide on obtained materials was possible in ion-exchange (IE) and hydrophilic interactions (HI) mode. The adsorption in IE was possible at low pH and was almost complete. The adsorption in HI mode required the usage of appropriate addition of organic solvent but did not provide full adsorption. Studies on the desorption of the analytes included determining the impact of ammonium acetate concentration and pH and organic solvents addition on the recovery. The material containing acetic fragments as an anionic group was selected for the final procedure with the use of 10 mM ammonium acetate (pH = 9.5)/methanol (50/50, v/v) as an elution solution. The magnetic dispersive solid-phase extraction procedure was tested for the oligonucleotides with various modifications and lengths. Moreover, it was applied to extract DNA oligonucleotide and its synthetic metabolites from enriched human plasma without any pre-purification, with recoveries greater than 80%.

Rhombic dodecahedral Fe3O4: ionic liquid-modulated and microwave-assisted synthesis and their magnetic properties

CrystEngComm ◽  
2011 ◽  
Vol 13 (20) ◽  
pp. 6017 ◽  
Author(s):  
Xiyan Li ◽  
Dapeng Liu ◽  
Shuyan Song ◽  
Xiao Wang ◽  
Xin Ge ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ionic Liquid ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

scholarly journals Ionic-liquid-based synthesis of GaN nanoparticles

2020 ◽  
Vol 56 (15) ◽  
pp. 2312-2315 ◽  
Author(s):  
Hannah F. Gaiser ◽  
Radian Popescu ◽  
Dagmar Gerthsen ◽  
Claus Feldmann
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Quantum Yield ◽  
Band Gap ◽  
Green Emission ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

GaN nanoparticles were prepared via microwave-assisted synthesis in ionic liquids. They are well-crystallized (β-GaN) and nanosized (3–8 nm), exhibit a band gap of 3.9 eV, and show green emission with a remarkable quantum yield of 55%.

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