abstract |
Composition containing agglomerates of magnetic alkoxysilane-coated metal nanoparticles, characterized that the agglomerates have an average size of 30 to 450 nm, as determined by means of scattered light measurement, and the zeta potential of the metal nanoparticles is 25 to 80 mV at a pH of 5.2 and a conductivity of 2.0 mS / cm. |