. 2009 Dec 3;4(12):e8142. doi: 10.1371/journal.pone.0008142

Table 2. Binding affinities or Kd values of different aptamers.

Aptamers	4^th P	10^th P	12^th P	13^th P	14^th P	ZE2	ZE3	ZE5
Kd (nM)	51.4±7	16.6±6	6.34±5.5	1.67±0.9	50.3±13	1.05±0.4	3.22±0.7	4.29±0.6

“P” represents pool; ZE2, ZE3, and ZE5 are different single aptamers from the 13th pool.