“…In such materials, one of the layers serves as the basis of the material, while the other performs a functional task on its surface (He, Guo, & Cui, 2011;Zhou, he, Cui, & Gao, 2011;Koziara, Nijmeijer, & Benes, 2015;Huang, Zhang, Kotaki, & Ramakrishna, 2003;Huang, McMillan, Apkarian, Pourdeyhimi, Conticello, & Chaikof, 2000) For example, if a nanofiber laminate based on fibroin silk (FS) and acrylonitrile copolymer (Co-AN) is formed, then due to the relatively high degree of flexibility and electrostatic activity of nanofibers (Co-AN), they can be used as substrates. And fibroin due to the relative strength and biological activity due to the amine groups in its composition, they can be used on the surface as a functional biolayer (Kholmuminov, Matyakubov, & Rakhmonov, 2020) The sequence of the formation of nanofibers from different polymer solutions by the electrospinning method makes it possible to obtain thin-layer nonwoven materials.…”