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3′-Hydroxy-4-methoxychalcone as a potential antibacterial coating on polymeric biomaterials
Ponnurengan Malliappan Sivakumar, Geetha Iyer,
Published in Elsevier
2010
Volume: 256
   
Issue: 20
Pages: 6018 - 6024
Abstract
Antimicrobial property of chalcone coated high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP) and polyurethane (PU) against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa is reported here. The presence of chalcone on the surface was confirmed from fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Bacterial adhesion decreased considerably on all the coated surfaces. Bacterial adhesion was highest on PU surface (most hydrophobic) and lowest on HDPE (most hydrophilic) surface. Chalcone seems to damage the membrane of the bacteria as well as exhibit slimicidal activity. Reasonably good correlation was observed between the CFU (Colony Forming Units) ratio (it is defined as the ratio of CFU on coated surface to the chalcone uncoated surface) at the 24th hour against both hydrophobicity of the microorganism and roughness of the coated polymeric surfaces. Increasing roughness of the polymer and hydrophobicity of the microorganisms were positively and negatively correlated respectively with CFU ratio. Hence, the chalcone coated polymers can be used in the development of newer biomaterials. © 2010 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetApplied Surface Science
PublisherData powered by TypesetElsevier
ISSN01694332
Open AccessNo
Concepts (20)
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    Adhesion
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    Biomaterials
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    Contact angle
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    Energy dispersive spectroscopy
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    Escherichia coli
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    Fourier transform infrared spectroscopy
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    High density polyethylenes
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    Hydrophobicity
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    Plastic coatings
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    Polypropylenes
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    Scanning electron microscopy
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    Anti-microbial properties
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    Antibacterial coatings
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    Bacterial adhesion
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    Energy dispersive spectroscopies (eds)
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    Fourier transform infra red (ftir) spectroscopy
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    HIGH DENSITY POLYETHYLENE(HDPE)
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    LOW DENSITY POLYETHYLENE (LDPE)
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    Pseudomonas aeruginosa
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    Surface roughness