Fig. 3From: Magnetic separation and concentration of Aβ 1–42 molecules dispersed at the threshold concentration for Alzheimer’s disease diagnosis in clinically-relevant volumes of sampleMorphological, structural, and magnetic characterization of Fe3O4@SiO2 MNPs: a TEM image, b particle size distribution, c HRTEM image of Fe3O4@OA MNPs (magnetic core) showing lattice fringes with d-spacing of 0.20 nm, which is a characteristic of the (400) magnetite structure, and d hysteresis loop at room temperatureBack to article page