Cover: Figure 4(b) – AFM 3D image of a PTFE surface treated by He-O2 plasma, showing increased hydrophobicity due to selective etching. [F. Reniers, J. Hubert, J. Mertens, T. Dufour, N. Vandencasteele, V. Pascal, M. Raes, R. Lazzaroni, H. Terryn: Synthesis and texturization processes of (super)-hydrophobic fluorinated surfaces by atmospheric plasma. p. 3182].