Fig. 2
From: Broad spectrum antimicrobial PDMS-based biomaterial for catheter fabrication
Surface characteristics of composite PDMS-PIM. (A) Surface topology of PDMS and PDMS-PIM material. Images of PDMS material surface on FESEM and AFM. (B) AFM analysis on surface roughness. Results are depicted as root mean square (RMS) values (Rq, nm) for respective unmodified PDMS and PDMS-PIM biomaterial. (C) Surface wettability analysis. Contact Angle measurement was carried out to determine the wetting ability of PDMS and PDMS-PIM material surface. The results are expressed as mean and standard deviation of 3 × 3 replicates