PET material is different than other crystalline materials in that it is crystal clear with light transmission similar to that of glass.

In this article two methods were used to connect active group on the surface of PET material. DCC and EDC were used to graft peptide. Method A is to graft GRGD on permanent dot of the solid surface.

While aromatic polyesters such as PET exhibit excellent material properties, they prove to be almost totally resistant to microbial attack.