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Surface Modification by Low Temperature Plasma: Sterilization of Biodegradable Materials
Author(s) -
Stepczyńska Magdalena
Publication year - 2016
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201600051
Subject(s) - scanning electron microscope , materials science , sterilization (economics) , cladosporium cladosporioides , microorganism , surface modification , aspergillus fumigatus , microbiology and biotechnology , chemistry , composite material , bacteria , biology , botany , foreign exchange market , genetics , monetary economics , economics , foreign exchange
Effect of low temperature plasma treatment on mortality of several microorganisms, Penicillium chrysogenum , Cladosporium cladosporioides , Aspergillus fumigatus , Fusarium culmorum , Escherichia coli , and Staphylococcus aureus , deposited on polylactide (PLA) surface, was investigated. After the PLA surface was modified, fungal spores were counted and the degree of bacterial reduction was determined. Images of specimens’ surface, reflecting the effect of the low temperature plasma on particular microorganisms, were obtained by using a digital camera, polarizing microscope, epi‐fluorescence microscope, and scanning electron microscope. The low temperature plasma causes mortality of microorganisms as a result of cell membrane cracking.