Amination of Poly(ethylene-terephthalate) polymer surface for biochemical applications

Low Pressure Radio Frequency Ammonia Plasma Surface Modification on Poly(ethylene terephthalate) Films and Fibers: Effect of the Polymer Forming Process

“…However, these authors reported a decrease of the aromatic ring p -p* shake-up band, with no further explanations. In fact, Girardeaux et al were the only group to suggest that the loss of intensity in the shake-up feature arose from a ring-opening phenomenon that occurred during the plasma treatment [20]. It was also demonstrated that the aromatic shake-up intensity did not depend on the aromatic substitution degree, [34] thereby suggesting that this loss in intensity can only be attributed to the aromatic ring scission.…”

“…For instance, radicals are the only species capable of reaching the material surface in remote mode (after-glow), while samples located directly within the plasma discharge are subjected to radicals, ions, or electrons [4,15,20,23].…”

“…Furthermore, plasma treatments enable the modification of the first atomic layers of the surface without changing the bulk properties of the material [2,6,8,15,16]. Moreover, depending on the plasma gaseous environments and experimental parameters, surface modification can be modulated to privilege etching (degradation of polymeric chains) or/and surface functionalisation [1,2,14,15,[17][18][19][20][21]. For example, Inagaki et al performed plasma surface modification experiments on PET using either O 2 , H 2 , N 2 , Ar, or NH 3 and demonstrated that the etching rate was strongly dependent upon the gas used [1].…”

Surface functionalization via in situ interaction of plasma-generated free radicals with stable precursor-molecules on cellulose

“…However, due to the extensive fragmentation of NH 3 in non-equilibrium plasmas, saturated, non-saturated and aromatic amines were used as alternative primary amine group precursors (Hollahan et al 1969;Hollahan and Wydeven 1973;Yasuda et al 1976;Peric et al 1977; Gombotz and Hoffman 1988;Sakata and Wada 1988;Gombotz et al 1989;Lub et al 1989;Holmes and Schwartz 1990;Chinn et al 1992;Terlingen et al 1993;Sarmadi and Denes 1996;Girardeaux et al 1996;Ganapathy et al 1996).…”

Characterization of glow‐discharge–treated cellulose acetate membrane surfaces for single‐layer enzyme electrode studies

“…Because plasma surface treatment processes, such as corona or gas plasma oxidation procedures, often produce unstable polymer surfaces that lose a considerable part of the treatment effects within a few days, the application of thin films is generally more effective. [5][6][7] It was found that thin films of plasma polymers are well suited for protein immobilization. 8 Therefore, we applied plasma polymerization techniques to modify the surface of polycarbonate membranes using a single-layer enzyme electrode.…”