adsorption is improved on increasing the quantity of beads in the structures. It was also verified that with increasing the time of exposure from 1 to 24 h, higher amount of pro-teins were adsorbed. The selected sample with the average diameter of 274 nm without any bead exhibited the highest tensile strength (7.6 MPa) and the lowest amount of adsorp-tion. The results indicated that electrospinning processing parameters change the physical characteristics of the fibers (diameter and bead) and also their biological performance such as protein adsorption as well as cell attachment and cell spreading.