Superparamagnetic behavior 8 Iron oxides 6 Magnetization 6 Nanoparticles 6 Superparamagnetism 6 Average size 4 Blocking temperature 4 Cobalt 4 Coercive field 4 Curing 4 Elastic properties 4 Elasticity 4 Ferromagnetic materials 4 Ferromagnetism 4 Magnetic fields 4 Microchannels 4 Nanocomposites 4 Nanomagnetics 4 Needles 4 Oxide nanoparticles 4 Polydimethylsiloxane PDMS 4 Probe field 4 Relative orientation 4 Remanence 4 Room temperature 4 SEM image 4 Silicones 4 Superparamagnetic nanoparticles 4 Young's Modulus 4 matrix 4