Towards a Technique for Controlling Wettability Characteristics and Conditioning Film Formation on Polyethylene Terephthalate (PET) Through Laser Surface Engineering

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Abstract

Bacteria attachment to a surface is initiated by the adsorption of molecules to form a conditioning film (protein layer) on the surface of a substratum. The nature of the substratum strongly influences the composition of the adsorbed protein layer which, in turn, affects the interaction of bacterial cells. Fundamental interactions between proteins adsorbed from bacterial growth media (no-cell adhesion) and CO2 laser surface engineered polyethylene terephthalate (PET). The influence of interfacial wetting on the initial film conditioning of the CO2 laser surface engineered PET was analysed using contact angle measurements, elucidating the relationship between surface roughness parameters, wettability characteristics and conditioning film formation. Chemical analysis of the CO2 laser surface engineered PET surfaces revealed that the recorded changes to the surface energy and wettability were the result of surface morphology changes rather than modification of the chemical structure. The conditioning film adsorbed onto the CO2 laser engineered PET surfaces was found to increase the wetting of the samples. This work demonstrates that CO2 laser irradiation of the surface of PET provides a viable means for controlling interfacial wettability characteristics and conditioning film formation, leading to an effective and efficient means of producing antibacterial surfaces.
Original languageEnglish
Pages (from-to)207-232
Number of pages26
JournalLasers in Engineering
Volume37
Issue number4-6
Publication statusPublished - 1 Jul 2017

Fingerprint

polyethylene terephthalate
conditioning
wettability
Polyethylene terephthalates
Wetting
engineering
Lasers
lasers
Proteins
proteins
wetting
Cell adhesion
Laser beam effects
Angle measurement
Chemical analysis
Interfacial energy
cells
Contact angle
chemical analysis
Surface morphology

Bibliographical note

There is a 12 month embargo period following publication.

Keywords

  • CO2 laser
  • polyethylene terephthalate (PET)
  • conditioning film
  • biofilm
  • wettability
  • contact angle
  • surface energy
  • laser surface engineering

Cite this

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title = "Towards a Technique for Controlling Wettability Characteristics and Conditioning Film Formation on Polyethylene Terephthalate (PET) Through Laser Surface Engineering",
abstract = "Bacteria attachment to a surface is initiated by the adsorption of molecules to form a conditioning film (protein layer) on the surface of a substratum. The nature of the substratum strongly influences the composition of the adsorbed protein layer which, in turn, affects the interaction of bacterial cells. Fundamental interactions between proteins adsorbed from bacterial growth media (no-cell adhesion) and CO2 laser surface engineered polyethylene terephthalate (PET). The influence of interfacial wetting on the initial film conditioning of the CO2 laser surface engineered PET was analysed using contact angle measurements, elucidating the relationship between surface roughness parameters, wettability characteristics and conditioning film formation. Chemical analysis of the CO2 laser surface engineered PET surfaces revealed that the recorded changes to the surface energy and wettability were the result of surface morphology changes rather than modification of the chemical structure. The conditioning film adsorbed onto the CO2 laser engineered PET surfaces was found to increase the wetting of the samples. This work demonstrates that CO2 laser irradiation of the surface of PET provides a viable means for controlling interfacial wettability characteristics and conditioning film formation, leading to an effective and efficient means of producing antibacterial surfaces.",
keywords = "CO2 laser, polyethylene terephthalate (PET), conditioning film, biofilm, wettability, contact angle, surface energy, laser surface engineering",
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T1 - Towards a Technique for Controlling Wettability Characteristics and Conditioning Film Formation on Polyethylene Terephthalate (PET) Through Laser Surface Engineering

AU - Waugh, David G.

AU - Lawrence, Jonathan

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Y1 - 2017/7/1

N2 - Bacteria attachment to a surface is initiated by the adsorption of molecules to form a conditioning film (protein layer) on the surface of a substratum. The nature of the substratum strongly influences the composition of the adsorbed protein layer which, in turn, affects the interaction of bacterial cells. Fundamental interactions between proteins adsorbed from bacterial growth media (no-cell adhesion) and CO2 laser surface engineered polyethylene terephthalate (PET). The influence of interfacial wetting on the initial film conditioning of the CO2 laser surface engineered PET was analysed using contact angle measurements, elucidating the relationship between surface roughness parameters, wettability characteristics and conditioning film formation. Chemical analysis of the CO2 laser surface engineered PET surfaces revealed that the recorded changes to the surface energy and wettability were the result of surface morphology changes rather than modification of the chemical structure. The conditioning film adsorbed onto the CO2 laser engineered PET surfaces was found to increase the wetting of the samples. This work demonstrates that CO2 laser irradiation of the surface of PET provides a viable means for controlling interfacial wettability characteristics and conditioning film formation, leading to an effective and efficient means of producing antibacterial surfaces.

AB - Bacteria attachment to a surface is initiated by the adsorption of molecules to form a conditioning film (protein layer) on the surface of a substratum. The nature of the substratum strongly influences the composition of the adsorbed protein layer which, in turn, affects the interaction of bacterial cells. Fundamental interactions between proteins adsorbed from bacterial growth media (no-cell adhesion) and CO2 laser surface engineered polyethylene terephthalate (PET). The influence of interfacial wetting on the initial film conditioning of the CO2 laser surface engineered PET was analysed using contact angle measurements, elucidating the relationship between surface roughness parameters, wettability characteristics and conditioning film formation. Chemical analysis of the CO2 laser surface engineered PET surfaces revealed that the recorded changes to the surface energy and wettability were the result of surface morphology changes rather than modification of the chemical structure. The conditioning film adsorbed onto the CO2 laser engineered PET surfaces was found to increase the wetting of the samples. This work demonstrates that CO2 laser irradiation of the surface of PET provides a viable means for controlling interfacial wettability characteristics and conditioning film formation, leading to an effective and efficient means of producing antibacterial surfaces.

KW - CO2 laser

KW - polyethylene terephthalate (PET)

KW - conditioning film

KW - biofilm

KW - wettability

KW - contact angle

KW - surface energy

KW - laser surface engineering

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SP - 207

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JO - Lasers in Engineering

JF - Lasers in Engineering

SN - 0898-1507

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ER -