MOESM1 of SELEX tool: a novel and convenient gel-based diffusion method for monitoring of aptamer-target binding

Additional file 1: Figure S1. Excellent performance in double immunodiffusion (DID) experiment by using designed gel cassette. Stars: Precipitation line; Ag, rabbit IgG (10 mg/mL); Ab, goat anti-rabbit IgG (different ratio in PBS buffer); C, PBS as negative control; Diffusion time was 16 h at 37 °C.