(a) Sodium dodecyl sulfate‐polyacrylamide gel electrophoresis (SDS‐PAGE) of MT1‐scFv (1) and MT1‐diabody (2). (b) Chromatograms of MW‐marker; 1 (7.93 mL), glutamate dehydrogenase 290 kDa: 2 (8.43 mL), lactate dehydrogenase 142 kDa: 3 (9.15 mL), enolase 67 kDa: 4 (10.98 mL), myokinase 32 kDa: 5 (13.18 mL), cytochrome C 12.4 kDa. (c) Chromatogram of 111In‐MT1‐scFv (11.0 mL). (d) Chromatogram of 111In‐MT1‐diabody (9.25 mL). (e) Chromatogram of 111In‐NC‐scFv (11.0 mL).