Affinity constants of aptamer candidates.

	Apt-5	Apt-26	Apt-28
K ON (M min)−1	16.8 × 104	5.6 × 104	8.0 × 104
K OFF (min−1)	2.1 × 10−3	1.4 × 10−3	1.7 × 10−3
K D (M)	12.26 × 10−9	24.85 × 10−9	21.18 × 10−9