Biocompatible Chitosan Nanofibers Functionalized with Silver Nanoparticles for SERS Based Detection

E.S. Prikhozhdenko a, E.V. Lengert a, B.V. Parakhonskiya,b,c, D.A. Gorina,d, G.B. Sukhorukove,f and A.M. Yashchenoka,g aRemote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, Russia bA.V. Shubnikov Institute of Crystallography, Russian Academy of Science, Moscow, Russia cDepartment of Molecular Biotechnology, Ghent University, Ghent, Belgium, 9000 Ghent, Belgium dRASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia eQueen Mary University of London, London, UK fRASA Center in St. Petersburg, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia gMax Plank Institute of Colloids and Interfaces, Department of Interfaces, Potsdam, Germany

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Electrospun chitosan nanofibrous substrates are functionalized with silver nanoparticles by reduction of silver from Tollens reagent using glucose. Filling factor is estimated through developed protocol by using analysis of scanning electron microscopy images. Obtained nanocomposite silver-chitosan plasmonic films display reliable surface enhanced Raman scattering signal of rhodamine B with the concentration 10-5 M adsorbed onto the surface of functionalized substrates.

DOI: 10.12693/APhysPolA.129.247 PACS numbers: 78.67.Bf, 73.20.Mf, 81.05.Qk, 78.30.-j