Figure 1 (IMAGE) Moscow Institute of Physics and Technology Caption EDX analysis of the fibers made of PLA (top row), BSA (middle), and the PLA-BSA blend in equal proportions (bottom). The color mapping corresponds to the chemical elements, with the carbon, oxygen, and nitrogen shown in green, yellow, and red, respectively. The presence of nitrogen indicates the protein Credit Elizaveta Pavlova et al./RSC Advances Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.