Functionalization of PEGylated Fe3O4 magnetic nanoparticles with tetraphosphonate cavitand for biomedical application
C. Tudisco, F. Bertani, M.T. Cambria, F. Sinatra, E. Fantechi, C. Innocenti, C. Sangregorio, E. Dalcanale and G. G. Condorelli Abstract In this contribution, Fe3O4 magnetic nanoparticles (MNPs) have been functionalized with a tetraphosphonate cavitand receptor (Tiiii), capable of complexing N-monomethylated species with high selectivity, and polyethylene glycol (PEG) via click-chemistry. The grafting process is […]
Surface modification of calcium carbonate with phosphonic acids
Wassim El Malti, Danielle Laurencin, Gilles Guerrero, Mark E. Smithb and P. Hubert Mutin Abstract The surface of precipitated calcite particles was modified by reaction with phosphonic acids(phenylphosphonic acid and dodecylphosphonic acid) in organic solvents, tetrahydrofuran (THF) andethanol. The reaction kinetics and adsorption isotherms were determined. Under appropriateconditions, dense phosphonate monolayers were deposited at the […]