Magnetic poly(ε-caprolactone)-based nanocomposite membranes for bone cell engineering

•Iron oxide nanoparticles were stabilized by caprylic, palmitic, and stearic acids.•Incorporation of the particles in nanocomposite poly(ε-caprolactone) membranes increased Young’s modulus and decreased stress and strain at break.•The cytotoxicity toward the SAOS-2 cells increased with the enhanced length of carbon chains of fatty acids.•The membranes are intended for non-invasive stimulation of bone cells using remote magnetic field.