For cancer patients, doctors often use chemotherapy to directly inject drugs into the human body to kill cancer cells, but this may also kill normal cells and immune cells together, resulting in strong side effects  Recently, some scientists have found that gold nanoparticles are easily absorbed by human cancer cells, and if they are coated with chemotherapy drugs, they can be used as a means of transport to accurately deliver chemotherapy drugs to cancer cells
Modern medical methods have been able to achieve the precise delivery of gold nanoparticles, so that the chemotherapeutic drugs they carry only act on cancer cells and do not harm other cells
 As a result, they assert that tiny gold nanoparticles can improve the outcome of cancer chemotherapy and reduce the side effects of chemotherapy