In water and wastewater, phosphate anions are considered critical contaminants because they cause algae blooms eutrophication. The present work aims at studying the removal of from aqueous solutions using silica particles functionalized with polyethylenimine. parameters affecting adsorption process such as pH, initial concentration, adsorbent dose, presence competitive anions, carbonate, nitrat...

Vaccines have shown great success in treating and preventing tumors and infections, while adjuvants are always demanded to ensure potent immune responses. Polyethylenimine (PEI), as one of the well-studied cationic polymers, has been used as a transfection reagent for decades. However, increasing evidence has shown that PEI-based particles are also capable of acting as adjuvants. In this paper,...

Magnetosome biomineralization and chain formation in magnetotactic bacteria are two processes that are highly controlled at the cellular level in order to form cellular magnetic dipoles. However, even if the magnetosome chains are well characterized, controversial results about the microstructure of magnetosomes were obtained and its possible influence in the formation of the magnetic dipole is...