Elastic properties Magnetic fields 8 Needles 8 Room temperature 8 Superparamagnetism 8 Average size 6 Curing 6 Elasticity 6 Microchannels 6 Nanoparticles 6 Polydimethylsiloxane PDMS 6 Relative orientation 6 Silicones 6 Young's Modulus 6 Anisotropy 4 Blocking temperature 4 Cobalt 4 Coercive field 4 Electric conductivity 4 Electrical conductivity 4 Ferromagnetic materials 4 Ferromagnetism 4 Iron oxides 4 Low concentrations 4 Magnetization 4 Magnetoresistance 4 Micro-particles 4 Nanocomposites 4 Nanomagnetics 4 Oxide nanoparticles 4