The Polyethylene terephthalate (PET) was impregnated by nano carbon, acetylene plasma as a source. The PET samples admitted into high vacuum with different plasma processing period of 10, 20 and 30 minutes with 60 sccm of acetylene. The transparent PET sheet become yellowish to light grey in colour with respect to carbon impregnation over the polymer surface, meanwhile the analysis with respect to structural, optical properties and contact angle also described. Hereby, the 2D peak of carbon and modes which present with effect of plasma process was derived by Raman spectroscopy and the presence of functional groups with respect to the stretching and bending modes described by Fourier Transform Intra-Red spectroscopy. The presence of UV absorption and emission bands observed via UV-Visible spectroscopy and Photoluminescence Spectroscopy respectively. The hydrophobic activity for water and blood samples were observed for pure and plasma processed PET samples by contact angle measurement. Enhancement of contact angle for pure and plasma processed samples were ~90° and ~179° respectively, revealed the impact of carbon over the polymer were superhydrophobic surface. Plasma processed PET brings the unique properties applies to the medical field shows the blood storage devices and liquid medicines flow tubes due to high microbial and non-toxic behaviour to human cell tissues.