Multiple twinned gold nanorods grown by bio-reduction techniques

In this work we present a new method to produce gold nanorods based on the bio-reduction process. The nanorods produced tend to show twins appearing either as bands or concentric forms, generating a new type of nanorods based on a decahedral structure. Examples of these two types of twins are presented here. The main conclusion is that the bio-reduction method to produce nanorods is a good alternative to the electrochemical methods.