sci-fi nanorobot close-up inside body

cell nanorobot virus cancer tumor nanotechnologies scifi closeup immunotherapy chemotherapy bacteria lymphocytes antibodies electron microscope nucleoplasm cells medicine human body artificial intelligence antibiotics biopsy radiation oncology metastasis robot disease healthcare lymph nodes octopus microbiology dna blood rna bacterium biology microscopic view pharmacology malignant treatment medical illness pathology surgery screening research molecular oncogene angiogenesis damage cytokines ai generated