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Effect of Plasma Processing and Organosilane Modifications of Polyethylene on Aeromonas Hydrophila Biofilm Formation

Effect of Plasma Processing and Organosilane Modifications of Polyethylene on Aeromonas Hydrophila Biofilm Formation

Dorota Kregiel, Kamila Niedzielska

Biomed Res Int. 2014;2014:232514.

PMID: 24605323

Abstract:

The aim of our research was to study how the modifications of polyethylene--a material commonly used in medicine and water industry--influence bacterial cell attachment and biofilm formation. The native surface was activated and modified using two-step process consisting in the activation of native surface with a H2O vapor plasma followed by its treatment with various organosilanes, namely, [3(tertbutylamine-2hydroxy) propyloxypropyl] diethoxymethylsilane, 1H,1H,2H,2H-perfluorooctylmethyldimethoxysilane, dimethoxydimethylsilane, and isobutylmethyldimethoxysilane. The effect of polyethylene modification after chemical treatment was analyzed using surface tension measurement. The adhesive properties of Aeromonas hydrophila LOCK0968 were studied in water with a low concentration of organic compounds, using luminometric and microscopic methods, and the viability of the adhered bacterial cells was evaluated using the colony forming units method. After two-week incubation the chemically modified materials exhibited better antiadhesive and antibacterial characteristics in comparison to the native surface. Among the examined modifying agents, dimethoxydimethylsilane showed the best desired properties.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1112396	Dimethoxydimethylsilane		1112-39-6	Price

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