  Cancer is the main cause of mortality at the developed countries and is the
second cause of mortality at the developing countries and breast cancer is the
most prevalent malignancy and the first cause of mortality among women of the
world. At the US, 28% of new cancer cases and 15% of mortality caused by that
in 2010 was caused by breast cancer. Moreover, breast cancer is the most common
cancer among Iranian women, which includes 24.4% of overall malignancies and
causes 3.3% of mortalities per 1.000 people. The disease is most spread in
Tehran and including 25.5% of all cancers. According to the mentioned, the
study has tried to assess the effect of nanotechnology in form of a review to
diagnose and treat breast cancer. The method applied in this study is
descriptive analytical method and library method has been used for data
collection purpose. In the data collection method, 45 articles relevant to
structure of types of nanoparticles and their uses in diagnosis, imaging and
medicine delivery systems and breast cancer treatment have been used. Although
there are still some challenges and limitations to use nanoparticles in
medication, it is hope that nanoparticles can make wonderful revolution not
only in oncology, but also in medication in near future. The most underlying
headlines of the present study include mineral nanoparticles, antibodies and
tumor imaging methods. Keywords: magnetic nanoparticles, breast cancer,
nanobody.
