Magnetoelastic Behavior of Bimodal Magnetic Hydrogels Using Nonmagnetic Particles

Abstract

Abstract Bimodal magnetic hydrogels consisting of magnetic and nonmagnetic particles were synthesized, and the magnetic response to the dynamic modulus of the gels was investigated. The change in the storage modulus for magnetic gels containing only magnetic particles exhibited 0.9 MPa by applying a magnetic field of 500 mT. The change in the storage modulus kept a high value although the magnetic particles were replaced with nonmagnetic particles by 34%. It can be considered that the magnetic interaction extends to the length of 4 to 6 microns via 2 or 3 nonmagnetic particles.