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    Monolayers of polyethilenimine on flat glass: a versatile platform for cations coordination and nanoparticles grafting in the preparation of antibacterial surfaces

    Year: 2012

    Journal: Dalton Transactions 2012, 41 (8) pp 2456-2463, 20121211

    Authors: Giacomo Dacarro, Lucia Cucca, Pietro Grisoli, Piersandro Pallavicini, Maddalena Patrini and Angelo Taglietti

    Organizations: Dipartimento di Fisica “A. Volta”, Universit`a degli Studi di Pavia, Via Bassi 6, 27100, Pavia, Italy, Analytical Chemistry Section, Dipartimento di Chimica, Universit`a degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia, Italy, Dipartimento di Scienze del Farmaco-Sezione di Farmacologia Sperimentaleed Applicata, Universit`a degli Studi di Pavia, Viale Taramelli 14, 27100,Pavia, Italy,Inorganic Nanochemistry Laboratory, Dipartimento di Chimica, Universit`a degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia, Italy

    A polyethylenimine (PEI) self-assembled monolayer (SAM) is prepared, capable of complexing silver and copper cations and of anchoring silver nanoparticles, exerting antibacterial activity against Escherichia coli and Staphylococcus aureus. Functionalized glassy surfaces have been fully characterized through spectroscopic techniques (UV-Vis spectroscopy, spectroscopic ellipsometry), atomic force microscopy imaging and quantitative Ag and Cu analysis (ICP optical emission spectroscopy).