Pseudomonas aeruginosa Biofilm Inactivation: Decreased Cell Culturability, Adhesiveness to Surfaces, and Biofilm Thickness Upon High-Pressure Nonthermal Plasma Treatment

Abstract High pressure injection injuries to the hand should not be taken lightly as urgent surgical debridement is required to ensure favorable outcomes. Empiric antibiotic administration is recommended; however, few studies focus on the secondary infection risk associated with these high pressure injection injuries. We present a rare case of a patient presenting with carbapenem resistant Pseudomonas aeruginosa following a high pressure paint gun injury of the thumb. Urgent surgical debridement with administration of broad-spectrum antibiotic coverage for both gram-negative and gram-positive bacteria is recommended. The injection of foreign materials can cause extensive tissue damage and immunosuppression facilitating growth of opportunistic bacteria that are often rare in healthy adults. We advocate for obtaining cultures at initial debridement to optimize treatment in these unique and rare injection injuries. Concerns should be raised as carbapenem resistant bacteria become more prevalent in the community.

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High Pressure Plasma Treatment for Controlling the Surface Activity and Optical Properties of TiO2 Nanoparticles

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2008.1308 ◽

2008 ◽

Vol 8 (10) ◽

pp. 5537-5542 ◽

Cited By ~ 1

Author(s):

Jin Jun ◽

Marshal Dhayal ◽

Bo-Hye Kim ◽

Hee-Gweon Woo

Keyword(s):

High Pressure ◽

Optical Properties ◽

Plasma Treatment ◽

Tio2 Nanoparticles ◽

Surface Activity ◽

Pressure Plasma

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Nonthermal plasma modification of polypropylene fibres for cementitious composites

Open Chemistry ◽

10.1515/chem-2015-0029 ◽

2014 ◽

Vol 13 (1) ◽

Cited By ~ 5

Author(s):

Tomáš Morávek ◽

Monika Fialová ◽

Daniel Kopkáně ◽

Jozef Ráheľ ◽

Pavel Sťahel ◽

...

Keyword(s):

Mechanical Properties ◽

Flexural Strength ◽

Plasma Treatment ◽

Nonthermal Plasma ◽

Bending Test ◽

Plasma Modification ◽

Surface Barrier ◽

Polypropylene Fibres ◽

Temperature Plasma ◽

Concrete Matrix

AbstractThe plasma treatment of polypropylene fibres used as concrete admixtures for improving its mechanical properties is the focus of this research paper. A plasma treatment was conducted in a low-temperature plasma environment at atmospheric pressure in a DCSBD (Diffuse Coplanar Surface Barrier Discharge). The degree of hydrophilicity caused by the plasma treatment was determined by measuring the rate of penetration of water into the porous media, commonly referred to as the Washburn method. The influence of the addition of PP (polypropylene) fibres to the concrete matrix was investigated using a three point bending test which determined the flexural strength of concrete samples. Our experiments demostrate that plasma improves both the wettability of PP fibres and its adhesion to the concrete matrix. The tests of flexural strength show, that even a short plasma treatment (5 s) can have a significant impact on the mechanical properties of fibre-reinforced concrete composite.

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