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ESCA and SIMS studies of plasma treatments of intraocular lenses
Author(s) -
Brinen J. S.,
Greenhouse S.,
Pinatti L.
Publication year - 1991
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740170202
Subject(s) - x ray photoelectron spectroscopy , contact angle , fluorine , intraocular lenses , plasma , analytical chemistry (journal) , secondary ion mass spectrometry , coating , chemistry , homogeneity (statistics) , intraocular lens , materials science , chemical engineering , mass spectrometry , chromatography , optics , composite material , organic chemistry , physics , statistics , mathematics , quantum mechanics , engineering
The surfaces of polymethylmethacrylate (PMMA) intraocular lenses (IOL) modified by treatment in a plasma containing various fluorine‐containing gases were studied by surface analytical techniques. The hydrophobicity imparted to the lens surface was monitored by water contact angle measurements and the degree of fluorination was determined by XPS measurements. The fluorine chemistry on the surface, monitored by XPS and SIMS, was function of the gas mixture employed in the plasma. SIMS imaging was used to monitor coating homogeneity and demonstrated the fragile nature of the coated surface.