Comparative Binding of Endocrine Disrupting Compounds and Pharmaceuticals with Polydopamine- and Polypyrrole-coated Magnetic Nanoparticles
Global concern about pharmaceutical and endocrine disrupting compounds in water resources is at its most intense due to their adverse effects on human health and environmental sustainability. Polydopamine-coated magnetic nanoparticles (MNPs@PDA) and polypyrrole-coated magnetic nanoparticles (MNPs@PPy) were successfully synthesized with strong magnetic attraction for easy separation. Their binding efficiencies with bisphenol A (BPA), metformin (MF), naphthalene acetic acid (NAA), phenformin (PF), quinine sulfate (QS), and triclosan (TC) in water were determined using capillary electrophoresis with UV detection. At a concentration of 200mgmL-1, the binding efficiencies of MNPs@PPy were found to be 99±1% BPA, 34±4% MF, 39±6% NAA, 99±1% PF, 98±2% QS, and 99±1% TC, whereas MNPs@PDA afforded 65±5% BPA, 14±6% MF, 21±4% NAA, 99±1% PF, 94±2% QS, and 92±3% TC. Hence, both MNPs@PDA and MNPs@PPy have a high capacity for efficient removal of aromatic compounds from water. Bisphenol A and naphthalene acetic acid have more affinity toward magnetic nanoparticles coated with polypyrrole than with polydopamine. Phenformin, quinine sulfate, and triclosan have similar affinities toward both types of polymer-coated nanoparticles. Metformin has little affinity toward either type of nanoparticles.
|Keywords||Aromatic compounds, Binding tests, Capillary electrophoresis, Ultraviolet detection, π-Conjugated binding surface|
|Journal||Clean - Soil, Air, Water|
Miah, M. (Musharraf), Iqbal, Z. (Zafar), & Lai, E. P. (2015). Comparative Binding of Endocrine Disrupting Compounds and Pharmaceuticals with Polydopamine- and Polypyrrole-coated Magnetic Nanoparticles. Clean - Soil, Air, Water, 43(2), 173–181. doi:10.1002/clen.201300210