A roll configuration for use in a roll type straightener including a concave surface of revolution formed on a roll for line contact of the roll with a cylindrical workpiece wherein the throat of the surface of revolution is offset longitudinally from the axial midpoint of the surface of revolution whereby a pair of such rolls may be employed in mutually-aligned or non-offset relationship with respect to the cylindrical workpiece axis to provide lateral restraint of such a workpiece being subjected to a bending moment.
Hydrogen-plasma modification of a contact lens made from a fluorinated polymer reduces the surface chemistry of by removing fluorine, leaving behind a carbon-enriched surface that is further plasma processed into a hydrophilic surface for a lens material to be inserted into the ocular environment.
Hydrogen-plasma modification of a contact lens made from a fluorinated polymer reduces the surface chemistry of by removing fluorine, leaving behind a carbon-enriched surface that is further plasma processed into a hydrophilic surface for a lens material to be inserted into the ocular environment.
Hydrogen-plasma modification of fluorinated polymers reduces the surface chemistry of this polymer removing fluorine, leaving behind a carbon-enriched surface that is further plasma processed into a hydrophilic surface for a lens material to be inserted into the ocular environment.
Hydrogen-plasma modification of a contact lens made from a fluorinated polymer reduces the surface chemistry of by removing fluorine, leaving behind a carbon-enriched surface that is further plasma processed into a hydrophilic surface for a lens material to be inserted into the ocular environment.
A method is disclosed for inhibiting adhesion of bacteria to the surface of a biomedical device comprising contacting the surface of said biomedical device with a cationic polysaccharide in aqueous solution having an ionic strength of from about 0.01 to about 0.13.
