Diamondoid-functionalized nanogaps: from small molecules to electronic biosensing Frank C. Maier, Chandra S. Sarap, Maofeng Dou, Ganesh Sivaraman and Maria Fyta Eur. Phys. J. Special Topics, 227 14 (2019) 1681-1692 Published online: 08 March 2019 DOI: 10.1140/epjst/e2019-800157-0