Abstract：
:The surface of soft contact lenses made of crosslinked poly(2-hydroxyethyl methacrylate). pHEMA, has been investigated with atomic force microscopy in contact mode. The friction force and adhesive force measurements were able to differentiate the non-crosslinked pHEMA chains from the surface of the crosslinked pHEMA networks. These non-crosslinked pHEMA chains at the surface were anchored to the crosslinked pHEMA network, most likely by entanglement and their surfaces were about 2-4nm higher than the surrounding surface in a dehydrated state. In saline solution, the surface friction and adhesive force of the contact lens were significantly reduced compared to those measured for the surface-dehydrated contact lens.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Kim SH,Marmo C,Somorjai GAdoi
10.1016/s0142-9612(01)00175-2keywords:
subject
Has Abstractpub_date
2001-12-01 00:00:00pages
3285-94issue
24eissn
0142-9612issn
1878-5905pii
S0142-9612(01)00175-2journal_volume
22pub_type
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