Thermal characteristics and cadmium binding behavior of EC-ELP fusion polypeptides.

•The cadmium binding affinity of EC-ELP fusion protein was examined by comparing the turbidity profiles to three other heavy metal ions.•The amount of Cd2+ adsorbed to the EC–ELP fusion proteins and the resulting Tt changes were explored according to the number of EC repeating units.•We observed whether our EC–ELP fusion proteins could be reused, after removing the adsorbed cadmium ions.