@misc{148, keywords = {AFM, ATR-FTIR, DCSBD plasma, Polytetrafluoroethylene surface, Polyvinylpyrrolidone and tannic acid layers, XPS}, author = {Andras Toth and Klara Szentmihalyi and Zsofia Keresztes and Imola Szigyártó and Dusan Kovacik and Mirko Cernak and Kinga Kutasi}, title = {Layer-by-layer assembly of thin organic films on PTFE activated by cold atmospheric plasma}, abstract = {An air diffuse coplanar surface barrier discharge is used to activate the surface of polytetrafluoroethylene (PTFE) samples, which are subsequently coated with polyvinylpyrrolidone (PVP) and tannic acid (TAN) single, bi- and multilayers, respectively, using the dip-coating method. The surfaces are characterized by X-ray Photoelectron Spectroscopy (XPS), Attenuated Total Reflection - Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Atomic Force Microscopy (AFM). The XPS measurements show that with plasma treatment the F/C atomic ratio in the PTFE surface decreases, due to the diminution of the concentration of CF2 moieties, and also oxygen incorporation through formation of new C-O}, year = {2015}, journal = {OPEN CHEMISTRY}, volume = {13}, number = {1}, pages = {557-563}, month = {JAN}, publisher = {DE GRUYTER OPEN LTD}, address = {BOGUMILA ZUGA 32A ST, 01-811 WARSAW, POLAND}, issn = {2391-5420}, doi = {10.1515/chem-2015-0072}, }