Fig. 2From: Isolation of DNA from Arthrospira platensis and whole blood using magnetic nanoparticles (Fe3O4@OA and Fe3O4@OA@SiO2)Transmission electron microscopy (TEM) image and size distribution of oleic acid-coated magnetic nanoparticles (Fe3O4@OA). (A) TEM image, scale bar: 50 nm. (B) Size distribution, n = 100Back to article page