Surface characterization and platelet adhesion studies of plasma-sulphonated polyethylene

Ko Tze-Man, Jui-Che Lin, Stuart L. Cooper

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

Canine platelet adhesion on sulphur dioxide and allyl phenyl sulphone plasma-treated low density polyethylene (LDPE) was studied. Both 5 W plasma excitation energy-treated surfaces showed the highest S:C atomic ratio by ESCA analysis. Surface hydrophilicity increased drastically after plasma treatment. However, surface hydrophilicity decreased with time. This might be due to the diffusion of the hydrophilic functional groups into the bulk of the material and/or the migration of low molecular weight hydrocarbon species into the surface region. The allyl phenyl sulphone plasma-treated LDPE was less platelet-activating in terms of platelet adhesion and spreading and was independent of the different plasma excitation energy levels used. Sulphur dioxide plasma-treated LDPE showed a higher-level platelet activation than the untreated LDPE. Among the sulphur dioxide plasma-treated LDPE samples, the sample prepared using the 5 W excitation energy was less platelet-activating than the samples treated by higher plasma excitation energies.

Original languageEnglish
Pages (from-to)657-664
Number of pages8
JournalBiomaterials
Volume14
Issue number9
DOIs
Publication statusPublished - 1993 Jan 1

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Polyethylene
Platelets
Polyethylenes
Blood Platelets
Adhesion
Low density polyethylenes
Plasmas
Excitation energy
Sulfur Dioxide
Sulfur dioxide
Hydrophilicity
Hydrophobic and Hydrophilic Interactions
Platelet Activation
Hydrocarbons
Electron energy levels
Functional groups
Canidae
Molecular Weight
Chemical activation
Molecular weight

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

Cite this

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Surface characterization and platelet adhesion studies of plasma-sulphonated polyethylene. / Tze-Man, Ko; Lin, Jui-Che; Cooper, Stuart L.

In: Biomaterials, Vol. 14, No. 9, 01.01.1993, p. 657-664.

Research output: Contribution to journalArticle

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