Fig. 1From: Urchin-like magnetic microspheres for cancer therapy through synergistic effect of mechanical force, photothermal and photodynamic effectsUHMMs characterisation. a image of Fe2O3@PS microspheres (TEM). b, c UHMMs images (TEM, SEM). d, e UHMMs particle size distribution with TEM and DLS measurement. f zeta potential of the UHMMs and UHMMs@Ce6. g UHMMs hysteresis loops with SQUID-VSM. h UHMMs pattern with XRD. i, k images of EDS and element mapping. j UHMMs magnetism stability after 3Â months. l, m UHMMs structure stability after 1 d and 30 d of storage 3Â months. n, o UHMMs structure stability after treated by a low frequency vibrating magnetic field for 2 and 10Â hBack to article page