Plasma Processes and Polymers

Cover image for Vol. 11 Issue 11

Online ISSN: 1612-8869

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Recently Published Articles

  1. Plasma-Etching for Controlled Modification of Structural and Mechanical Properties of Electrospun PET Scaffolds

    Houman Savoji, Sophie Lerouge, Abdellah Ajji and Michael R. Wertheimer

    Article first published online: 20 NOV 2014 | DOI: 10.1002/ppap.201400147

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    Aligned electrospun poly(ethylene terephthalate) nanofiber scaffolds that mimic the media layer of arteries have been fabricated. We used three different plasma etching techniques to bring their mechanical and surface properties in line with those of natural blood vessels. Substantial reduction in Young's modulus was attained after as little as 5 min treatment. We also report changes in surface composition, wettability and growth of smooth muscle cells (SMCs).

  2. Plasma Stimulation of Migration of Macrophages

    Vandana Miller, Abraham Lin, Gregory Fridman, Danil Dobrynin and Alexander Fridman

    Article first published online: 20 NOV 2014 | DOI: 10.1002/ppap.201400168

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    We present first evidence of in vitro stimulation of immune responses in a macrophage cell line using non-thermal plasma. Nanosecond pulsed DBD is effective in stimulating migration of macrophages in a 2D wound-healing assay. This is an important early step in generation of innate and adaptive immune responses in vivo.

  3. Plasma Processes and Polymers Special Issue on: Plasma and Cancer

    Mounir Laroussi and Michael Keidar

    Article first published online: 17 NOV 2014 | DOI: 10.1002/ppap.201400122

  4. Dielectric Barrier Discharge Plasma Efficiently Delivers an Apoptotic Response in Human Monocytic Lymphoma

    Neha Kaushik, Naresh Kumar, Chung Hyeok Kim, Nagendra Kumar Kaushik and Eun Ha Choi

    Article first published online: 17 NOV 2014 | DOI: 10.1002/ppap.201400102

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    The effect of dielectric barrier discharge plasma on endogenous antioxidant defense and apoptosis in U937 human monocytic lymphoma cells is investigated. We shows that our DBD plasma significantly alter the metabolic viability, intracellular ROS, H2O2, NADP+/NADPH levels, GSSG/GSH levels, and endogenous antioxidant activity of cells. Annexin-V/PI staining, caspase-3/-7 activities, mRNA expression of apoptosis related gene, and reduction in mitochondrial membrane potential justify a significant level of apoptosis in cells.

  5. Plasma-Activated Polypropylene Mesh-Gelatin Scaffold Composite as Potential Implant for Bioactive Hernia Treatment

    Selestina Gorgieva, Martina Modic, Barbara Dovgan, Maja Kaisersberger-Vincek and Vanja Kokol

    Article first published online: 17 NOV 2014 | DOI: 10.1002/ppap.201400125

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    Potential of novel, PPmesh-GELscaffoldcomposites for active hernia treatment is demonstrated by means of extracellular matrix-like gradual µ-porosity, high elasticity, excellent intrinsic/ by ϵ-poly-L-lysine-evoked antibacterial activity against S. aureus and E. coli, for 60% diminished fibrinogen adsorption, up to 2 months biodegradation resistance, and non cytotoxicity towards human ASC cells.