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Updated: Feb 15, 2026

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
Published on: January 8, 2016
Polymer-based materials modified with magnetite nanoparticles for enrichment of phospholipids
I Ten-Doménech1, H Martínez-Pérez-Cejuela1, E F Simó-Alfonso1
1Department of Analytical Chemistry, University of Valencia, C/Doctor Moliner 50, 46100 Burjassot, Valencia, Spain.
Abstract:
A polymeric material modified with magnetic nanoparticles (MNPs) has been synthesized and evaluated as sorbent both for solid-phase extraction (SPE) and dispersive magnetic solid-phase extraction (MSPE) of phospholipids (PLs) in human milk samples. The synthesized sorbent was characterized by scanning electron microscopy and its iron content was also determined. Several experimental variables that affect the extraction performance (e.g. loading solvent, breakthrough volume and loading capacity) were investigated and a comparison between conventional SPE and MSPE modalities was done. The proposed method was satisfactorily applied to the analysis of PLs in human milk fat extracts in different lactation stages and the extracted PLs were determined by means of hydrophilic interaction liquid chromatography using evaporative light scattering detection.
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