Nitrogen-rich plasma polymers: Comparison of films deposited in atmospheric- and low-pressure plasmas

Truica-Marasescu, Florina; Girard‐Lauriault, Pierre‐Luc; Lippitz, Andreas; Unger, Wolfgang; Wertheimer, M. R.

doi:10.1016/j.tsf.2008.02.033

Cited by 97 publications

(123 citation statements)

References 42 publications

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“…Two schools of thought are found in the literature, depending on which is obtained: an amorphous carbon nitride film (a-C:N:H) [42][43][44][45][46][47][48][49] or a plasma polymer [10,50,51]. Their different C1s assignments are listed in Table 2.…”

Section: Xps and Chemical Derivatizationmentioning

confidence: 99%

Effect of C2H4/N2 Ratio in an Atmospheric Pressure Dielectric Barrier Discharge on the Plasma Deposition of Hydrogenated Amorphous Carbon-Nitride Films (a-C:N:H)

Sarra-Bournet

Ghérardi

Glénat

et al. 2010

Plasma Chem Plasma Process

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The goal of this study was to investigate the properties and growth mechanisms of nitrogen-containing carbon-based coatings obtained with an atmospheric pressure dielectric barrier discharge in an N 2 -C 2 H 4 atmosphere. Radically different chemical compositions were observed depending on C 2 H 4 /N 2 ratio. With a low C 2 H 4 concentration (\400 ppm) as a function of the residence time in the discharge, two different growth mechanisms were observed consisting of a highly nitrogenated coating (N/C [ 0.8) and low hydrogen content. At the short residence time, growth was due to mobile small radicals that procured a smooth yet soluble coating, while at the longer residence time, diffusionlimited aggregation of high sticking N-containing radicals produced a cauliflower-like structure. With a high C 2 H 4 concentration (C2,000 ppm), a polymer-like coating with relatively lower nitrogen content (N/C * 0.2) was observed with a cauliflower morphology for the entire coating. Nanoindentation measurements revealed very different physical properties in the two types of coatings.

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Section: Xps and Chemical Derivatizationmentioning

confidence: 99%

Effect of C2H4/N2 Ratio in an Atmospheric Pressure Dielectric Barrier Discharge on the Plasma Deposition of Hydrogenated Amorphous Carbon-Nitride Films (a-C:N:H)

Sarra-Bournet

Ghérardi

Glénat

et al. 2010

Plasma Chem Plasma Process

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“…Different gas compositions, pressures, and fabrication techniques can be used to generate different chemical compositions, in particular different nitrogen-([N]) and primary amine ([-NH 2 ]) concentrations. [16,17] In contrast to coatings made from pre-adsorbed proteins, it is firmly adherent on polymeric substrates. In addition, the loss of primary amine due to hydrophobic recovery with time is less pronounced than plasma-functionalized polymers, due to higher crosslinking and near-uniform composition across the layer.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen‐Rich Plasma‐Polymerized Coatings on PET and PTFE Surfaces Improve Endothelial Cell Attachment and Resistance to Shear Flow

Gigout

Ruíz

Wertheimer

et al. 2011

Macromolecular Bioscience

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Low seeding efficiency and poor cell retention under flow-induced shear stress limit the effectiveness of in vitro endothelialization strategies for small-diameter vascular grafts. Primary-amine-rich plasma-polymerized coatings (PPE:N) deposited using low- and atmospheric-pressure plasma discharges on PET and PTFE are evaluated for their ability to improve endothelial cells' kinetics and strength of attachment. PPE:N coatings increase cell adhesion and adhesion rate, spreading, focal adhesion, and resistance to flow-induced shear compared with bare and gelatin-coated PET and PTFE. In particular, about 90% of the cells remain on coated surfaces after 1 h exposure to shear. These coatings, therefore, appear as a promising versatile approach to improve cell seeding strategies for vascular grafts.

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“…due to the plasma flux impact is not permanent. This characteristic has already been studied by some authors 38,39 . In addition, authors have studied a similar plasma system which obtains extreme durability in LDPE sheets (up to 270 days).…”

Section: (Figure 4)mentioning

confidence: 79%

Optimization of atmospheric plasma treatment of LDPE films: influence on adhesive properties and ageing behavior

Fombuena

Sànchez-Nácher

Balart

et al. 2013

Journal of Adhesion Science and Technology

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One of the major disadvantages of low density polyethylene (LDPE) sheets is their poor adhesive properties. Therefore, LDPE sheets have been treated with atmospheric pressure air plasma (APP) in order to improve their surface properties. In order to simulate the possible conditions in an industrial process, the samples have been treated with two different sample distances (6 and 10 mm) and treatment rates between 100 and 1000 mm·s -1 . The variation of the surface properties and adhesion characteristics of the sheets were investigated for different aging times after plasma exposure (up to 21 days) using contact angle measurement, atomic force microscopy (AFM), weight loss measurements and shear test. Results show that the treatment increases the polar component (γ s p ) and these changes improve adhesive properties of the material. After the 21 st day, the ageing process causes a decrease of wettability and adhesive properties of the LDPE sheets (up to 60%).

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Nitrogen-rich plasma polymers: Comparison of films deposited in atmospheric- and low-pressure plasmas

Cited by 97 publications

References 42 publications

Effect of C2H4/N2 Ratio in an Atmospheric Pressure Dielectric Barrier Discharge on the Plasma Deposition of Hydrogenated Amorphous Carbon-Nitride Films (a-C:N:H)

Effect of C2H4/N2 Ratio in an Atmospheric Pressure Dielectric Barrier Discharge on the Plasma Deposition of Hydrogenated Amorphous Carbon-Nitride Films (a-C:N:H)

Nitrogen‐Rich Plasma‐Polymerized Coatings on PET and PTFE Surfaces Improve Endothelial Cell Attachment and Resistance to Shear Flow

Optimization of atmospheric plasma treatment of LDPE films: influence on adhesive properties and ageing behavior

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