2013 | |
Articles: | |
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Physical Review B - Condensed Matter and Materials Physics,
88(10)
2013
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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Thin Solid Films,
545:310-319
2013
Resume: A microwave-generated plasma afterglow (MWGPA) treatment was applied to keratin fibers to improve their adhesion to anatase nanocrystals by modifying their surface chemical and physical structure. The induced photocatalytic self-cleaning property has significantly been improved by 70% as evidenced by complete stain decomposition in 6 h only. The effects of gas mixtures, gas flow, treatment distance, treatment duration and power flow of the MWGPA treatment on keratin's surface were investigated. The MWGPA-induced alteration of keratin's surface structure resulted in an increase in the uptake of anatase crystals and thus enhanced photocatalytic self-cleaning activities. The contact angle, absorption time, deposition behavior, adhesion and stability of anatase coating of keratin fibers are discussed. The anatase uptake and coating uniformity were characterized quantitatively using Time-of-Flight Secondary Ion Mass Spectrometry. This efficient and low energy plasma surface activation approach demonstrated potential toward the practical application of anatase in keratinous materials. Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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Contributions to Plasma Physics,
53:459-468
2013
Resume: This work presents the physics design for a simple quasi-axially symmetric stellarator. A plasma configuration described by a modest number of Fourier coefficients was found to establish this symmetry with good accuracy. The low rotational transform results in a relatively simple coil set exhibiting low curvatures and comfortable clearance between adjacent coils. As another consequence, the maximum achievable plasma pressure will be limited to about 0.5%. An experiment along the lines proposed would allow an exploration of the confinement properties of a quasi-axially symmetric configuration. ((c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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JOURNAL OF RAMAN SPECTROSCOPY,
44(7):1060
2013
ISSN: 0377-0486
DOI: 10.1002/jrs.4325
Equipe: Département P2M : Surfaces et Spectroscopies |
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NATURE COMMUNICATIONS,
4
2013
ISSN: 2041-1723
DOI: 10.1038/ncomms3800
Equipe: Département P2M : Surfaces et Spectroscopies |
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Journal of Nuclear Materials,
438:S154
2013
Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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Journal of Applied Physics,
114(1)
2013
Equipe: Centre de Compétences : MiNaLor micro et nanotechnologies |
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Acta Materialia,
61:3758-3768
2013
Equipe: Département SI2M : Microstructures et Contraintes |
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Applied Physics Letters,
103(7)
2013
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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APPLIED PHYSICS LETTERS,
103
2013
ISSN: 0003-6951
DOI: 10.1063/1.4818677
Equipe: Centre de Compétences : X-Gamma rayons X et spectroscopie |