Preface: nanobiotechnology-bsed cancer diagnosis --;RNA quantification with gold nanoprobes for cancer diagnostics --;Role of nanodiagnostics in personalized cancer therapy --;Biomarkers quantification with antibody arrays in cancer early detection --;Cancer biomarker detection by surface plasmon resonance biosensors --;Phosphorylcholine self-assembled monolayer-coated quantum dots: real-time imaging of live animals by cell surface mimetic glyco-nanoparticles --;Gold nanoparticle-mediated detection of circulating cancer cells.