The period between the two measurements is about six months.The two results manifested both measurements have superparamagnetism and there is not much difference in the saturation magnetization.

• 两次测量结果显示,两次测量均显示了超顺磁性,且饱和磁化强度相差不大,原因是葡聚糖包覆材料对氧化铁的磁稳定性起了很大作用。