Wettability properties of carbon nanowalls layers deposited by a radiofrequency plasma beam discharge

Post‐synthesis Carbon Nanowalls Transformation under Hydrogen, Oxygen, Nitrogen, Tetrafluoroethane and Sulfur Hexafluoride Plasma Treatments

“…If the surface chemistry is adequate, the CNWs layers may present a pronounced hydrophobic behavior due to their aspect consisting of random distribution of micronsize interspaces combined with nano‐scale roughness 6, 47. It is expected that plasma treatments, leading to both chemical composition and morphology modifications, may have a strong impact on wettability.…”

“…Carbon nanostructures possess a remarkable flexibility when it comes to the control of their characteristics. We already showed in our studies3–6 that some of the CNWs characteristics (density, size, and shape) can be easily tuned during their synthesis by changing certain plasma parameters and substrate conditions. Another way of tuning their properties is represented by post‐synthesis treatment.…”

“…In this paper, we investigated the influence of post‐synthesis plasma treatments on the characteristics of CNWs layers. CNWs were synthesized by Ar/H 2 /C 2 H 2 radiofrequency plasma beam enhanced chemical vapor deposition (RF‐PECVD), a reproducible procedure that we have previously reported 3–6. The as‐obtained CNWs material was treated in a plan‐parallel RF plasma configuration setup using argon admixed with various gases (H 2 , O 2 , N 2 , C 2 H 2 F 4 and SF 6 ).…”

Carbon nanowall scaffold to control culturing of cervical cancer cells

“…However, number of spreading HeLa cells did not show significant dependence on the density and wettability of the CNWs. Stancu et al reported that L929 fibroblast cells were rounded on super-hydrophobic CNWs; 16 however, according to the experimental results obtained in this study, the morphological change of cells is determined by the chemical termination rather than by the wettability and surface morphology of the scaffolds.…”

“…Stancu et al reported the culturing of L929 fibroblast cells on CNWs and their different morphology compared with those cultured on a flat SiO 2 surface. 16 However, the relationship between the cell culturing characteristics and the surface properties of CNWs has not been clarified. In this study, the dependence of the cell culturing rate and morphological change on the surface wettability of CNWs with different densities and chemical terminations were systematically investigated.…”