SERS-platforms based on electrospun nanofibers with embedded silver nanoparticles

摘要

Encapsulation of various nanoparticles in nanofibers has become one of the most interesting topics in the field ofelectrospinning and SERS. Literature review shows that several main approaches can be distinguished for thepreparation of electrospun nanofibers with embedded metal nanostructures. However, there is no information about thecomparison of various methods of metal nanoparticles introduction into nanofiber-based SERS-platforms. Three mainapproaches were used here for preparation of SERS-platforms based on electrospun nanofibers with embedded silvernanoparticles: synthesis of metal nanostructures inside fibers prepared with incorporated precursor, metal nanostructuressynthesis via their nucleation in prepared nanofibers and sorption of metal nanostructures onto ready-made nanofibers.SERS-platforms based on polyacrylonitrile nanofibers containing various concentrations of Ag nanoparticles wereobtained using techniques described above and tested.