SPR investigations of the formation of intermediate layer of the immunosensor bioselective element based on the recombinant Staphylococcal protein A - A. E. Rachkov; A. O. Bakhmachuk; O. B. Gorbatiuk; M. J. Matsishin; R. V. Khristosenko; Iu. V. Ushenin; A. P. Soldatkin (Biopolymers and Cell, 2015)