Table 2.

Comparison of antibodies versus aptamers (adapted from [102]).

Property	Antibodies	Aptamers
Reproducibility	Batch-to-batch variation	No batch-to-batch variation
Cost	Can be expensive to generate	Generally cheaper to generate
Generation time	Lengthy	Can be rapid
Specificity	Can be cross reactive	High specificity
Tumour penetration	Slow	Rapid
Stability	Sensitive to pH and temperature	Stabile in range of pHs and temperatures