Plasma Processes and Polymers

Cover image for Vol. 14 Issue 1-2

Online ISSN: 1612-8869

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Special Issues

FORTHCOMING SPECIAL ISSUES

  • Numerical Modelling of Low-temperature Plasmas for Various Applications - Part II
    Editor-in-Chief: Michael Wertheimer
    Guest Editors: Annemie Bogaerts (University of Antwerp, Belgium) and Luís Lemos Alves (Instituto de Plasmas e Fusão Nuclear, Lisbon, Portugal)
  • Plasma Conversion
    Editor-in-Chief: Christian Oehr
    Guest Editor: Tomohiro Nozaki (Tokyo Institute of Technology, Japan)
  • Plasma and Agriculture
    Editor-in-Chief: Pietro Favia
    Guest Editors: Matteo Gherardi (University of Bologna, Italy), Masaharu Shiratani (Kyushu University, Japan) and Nevena Puac (University of Belgrade, Serbia)
  • Plasma and Liquids
    Editor-in-Chief: Riccardo d’Agostino
    Guest Editors: Petr Lukes (Institute of Plasma Physics, Prague, Czech Republic) and Bruce R. Locke (Florida State University, USA)

RECENTLY PUBLISHED SPECIAL ISSUES

Recently Published Articles

  1. Dynamic probing of plasma-catalytic surface processes: Oxidation of toluene on CeO2

    Zixian Jia, Xianjie Wang, Frederic Thevenet and Antoine Rousseau

    Version of Record online: 17 FEB 2017 | DOI: 10.1002/ppap.201600114

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    Toluene adsorption and oxidation on CeO2 surface by non-thermal plasma (NTP) is in situ monitored using infrared (IR) diagnostics (diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) and transmission mode). The oxidation of toluene by plasma follows a first-order reaction regardless of plasma configuration and injected power. It was found that IPC was more effective for the toluene removal than PPC. Interestingly, toluene abatement and reaction intermediate formations are characterized in situ throughout the heterogeneous oxidation reaction advancement.

  2. A combined low-pressure hydrogen peroxide evaporation plus hydrogen plasma treatment method for sterilization – Part 1: Characterization of the condensation process and proof-of-concept

    Katharina Stapelmann, Marcel Fiebrandt, Marina Raguse, Jan-Wilm Lackmann, Michiel Postema, Ralf Moeller and Peter Awakowicz

    Version of Record online: 10 FEB 2017 | DOI: 10.1002/ppap.201600198

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    Plasma sterilization is a promising alternative to conventional sterilization procedures. However, the efficiency of plasma sterilization processes is challenged by multilayered stacks of spores as plasma is a surface process. Furthermore, small, complex metal geometries pose a challenge due to shielding characteristics. A combined process of condensed hydrogen peroxide with subsequent hydrogen plasma treatment is introduced to overcome this challenges. The condensation process is investigated and a proof-of-concept is given by sterilization tests in a process challenge device and in sealed sterile bags.

  3. Solvent- and catalysts-free immobilization of tannic acid and polyvinylpyrrolidone onto PMMA surface by DBD plasma

    Szilvia Klébert, Zoltán Károly, András Késmárki, Attila Domján, Miklós Mohai, Zsófia Keresztes and Kinga Kutasi

    Version of Record online: 10 FEB 2017 | DOI: 10.1002/ppap.201600202

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    Surface activation polymethyl methacrylate (PMMA) by diffuse coplanar surface dielectric barrier discharge (DCSDBD) plasma unit and subsequent attachment of polyvinylpyrrolidone (PVP) and tannic acid (TAN) macromolecule layers to the surface is studied. Interaction between the two macromolecules is also analyzed by NMR.

  4. Collagen immunoassay as a method to optimise surface functionalisation

    Gil Stynes, George Kiroff, Wayne Morrison and Mark Kirkland

    Version of Record online: 7 FEB 2017 | DOI: 10.1002/ppap.201600213

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    Traditional methods of assessing surface functionalisation, including spectroscopy and chemical labelling, often involve significant error and conjecture about bonds. Proteins that improve cell attachment have specific pKa's and optimum binding requirements that may differ from the conditions required for chemical labelling. The utility of collagen ELISA to optimise acetaldehyde glow discharge polymerisation reactor parameters was tested. Accurate stepwise increases in collagen conjugation strength were demonstrated by incubating specimens in 8 M urea for 5–8 days followed by ELISA to test for residual surface collagen. Surface modifications also were assessed by XPS. The results indicated that ELISA after bond-stressing with urea may suffice for optimising surface functionalisation and that traditional methods of analysis may be superfluous if protein conjugation is the aim of functionalisation.

  5. Synthesis of supported nanocatalysts via novel non-thermal plasma methods and its application in catalytic processes

    Hamed Taghvaei, Malihe Heravi and Mohammad Reza Rahimpour

    Version of Record online: 7 FEB 2017 | DOI: 10.1002/ppap.201600204

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    Nowadays, promoting the chemical processes particularly by improvement of catalyst's characteristics, has drawn a lot of attention. Following this purpose, application of cold plasma in modification of catalysts has been widely under study. This paper present a review of literature relevant to different plasma treatment procedures and mechanisms. Moreover, the influences of plasma-treated catalysts on certain catalytic processes are outlined.

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