title: A novel approach for electromembrane extraction based on the use of silver nanometallic-decorated hollow fibers.
abstract: A novel approach based on the use of nanometallic-decorated hollow fibers to assist electromembrane extraction is proposed. Microporous polypropylene hollow fibers, on which nanometallic silver was deposited, have been used for the first time as liquid membrane support in electromembrane extraction (EME). Different methods for the generation/deposition of silver nanoparticles (AgNPs) were studied. The best results were obtained with chemical reduction of silver nitrate using NaBH4 in aqueous solution followed by direct deposition on the hollow fibers. The extraction performance of the new supports was compared with a previously developed EME procedure used for the extraction of selected non-steroidal anti-inflammatory drugs (NSAIDs), resulting in an increase in the extraction ratio by a factor of 1.2-2 with a 30% reduction in the extraction time. The new nanometallic-decorated supports open new possibilities for EME due to the singular properties of nanometallic particles, including chemical fiber functionalization.
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain; Department of Analytical Chemistry, Lineberguer Cancer Center, The University of North Carolina at Chapel Hill, NC, United States.
authors.forename: María
authors.initials: M
authors.lastname: Ramos-Payán
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain; Research Centre of Health and Environment (CYSMA), University of Huelva, Spain.
authors.forename: Rut
authors.initials: R
authors.lastname: Fernández-Torres
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain.
authors.forename: Juan Luis
authors.initials: JL
authors.lastname: Pérez-Bernal
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Callejón-Mochón
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain. Electronic address: mabello@us.es.
authors.forename: Miguel Ángel
authors.initials: MÁ
authors.lastname: Bello-López
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000302:isolation & purification*; D055664:Electrochemical Techniques; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D011126:Polypropylenes / Q000737:chemistry*; D016062:Porosity; D012834:Silver / Q000737:chemistry*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D008567:Membranes, Artificial; D011126:Polypropylenes; D012834:Silver
keywords: Electromembrane extraction; Microporous polypropylene hollow fiber; Non-steroidal anti-inflammatory drugs; Silver nanometallic-decorated hollow fiber