Figure 1From: Highly sensitive magnetite nano clusters for MR cell imagingCharacterizations of magnetic nanoclusters (MNCs). A: TEM images of MNCs of different sizes. B: XRD pattern of MNCs. C: Magnetic hysteresis loops of MNCs at 300 K. Inset: Magnification of hysteresis curves for distinguishing the differences of saturation magnetizations of different MNCs.Back to article page