Surface modification of contact lenses using adsorption of ethylene oxide branched copolymers

2012 ◽  
Vol 127 (5) ◽  
pp. 3657-3662 ◽  
Author(s):  
Ikuko Toki ◽  
Masanori Komatsu ◽  
Yoshio Shimizu ◽  
Yusuke Hara
Keyword(s):  
Surface Modification ◽  
Ethylene Oxide ◽  
Contact Lenses ◽  
Branched Copolymers

scholarly journals HYDROGELS FROM POLYACRYLIC ACID FOR REDUCTION OF BIOADHESION ON SILICONE CONTACT LENSES

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Zahida Ademović ◽  
Snježana Marić ◽  
Peter Kingshott ◽  
Zoran Iličković
Keyword(s):  
Surface Modification ◽  
Oxygen Permeability ◽  
Contact Lenses ◽  
Low Oxygen ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Lysozyme Adsorption ◽  
Tof Ms

Contact lenses suffer from two limitations: low oxygen permeability and deposition of protein and lipids. In order to prevent bioadhesion, surface must be completely inert to all biological reactions. To achieve this, surface properties must be tailored. Also, to improve comfort, surface must be highly wettable and lubricous. In this paper the surface of silicone contact lenses was modified by plasma induced copolymerization of acrylic acid. A wettable surface was generated and in addition carboxyl groups that were created on the surface provided an ideal reactive platform for subsequent grafting of polyethylene glycol. Each surface modification step was analysed by XPS and contact angle measurements. Lysozyme adsorption on modified silicone contact lenses was analysed by surface-MALDI-ToF-MS and XPS. After incubation with lysozyme, surface-MALDI-TOF-MS and XPS analysis showed a reduction of adsorbed lysozyme on hydrogel modified contact lenses. Surface modification of silicone with PEG is a method for reduction of protein adsorption on contact lenses.

Surface Modification of Copolyether-Urethane Catheters with Poly(Ethylene Oxide)

1989 ◽  
Vol 12 (6) ◽  
pp. 390-394 ◽  
Author(s):  
E. Brinkman ◽  
A. Poot ◽  
T. Beugeling ◽  
L. Van Der Does ◽  
A. Bantjes
Keyword(s):  
Surface Modification ◽  
Ethylene Oxide ◽  
Blood Compatibility ◽  
Angle Measurements ◽  
Fold Reduction ◽  
Contact Angle Measurements ◽  
Platelet Deposition ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Pellethane 2363 80A catheters were modified with poly(ethylene oxide) in order to improve their blood compatibility. Contact angle measurements showed that Pellethane 2363 80A surfaces had increased wettability after this modification. The results of in vitro blood compatibility tests showed that surface modification with poly(ethylene oxide) resulted in a five-fold reduction of platelet deposition. Activation of coagulation was not affected.

scholarly journals Surface modification of polyaniline nanorods with thiol-terminated poly(ethylene oxide)

2018 ◽  
Vol 296 (4) ◽  
pp. 637-645 ◽  
Author(s):  
Brandon T. DiTullio ◽  
Cassandra J. Wright ◽  
Patricia Hayes ◽  
Paul J. Molino ◽  
Timothy W. Hanks
Keyword(s):  
Surface Modification ◽  
Ethylene Oxide ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Polyaniline Nanorods

Wettable and lubricious polybetaine surface modification for contact lenses with extended stability and human safety

2013 ◽  
Vol 36 ◽  
pp. e26-e27
Author(s):  
Christopher Loose ◽  
Alonzo Cook ◽  
Jun Li ◽  
Matthew Skinner ◽  
Zheng Zhang
Keyword(s):  
Surface Modification ◽  
Contact Lenses ◽  
Human Safety

Laser-Induced Surface Modification of Contact Lenses

2018 ◽  
Vol 20 (6) ◽  
pp. 1700963
Author(s):  
Yousef Alqurashi ◽  
Magdalena Bajgrowicz-Cieslak ◽  
Muhammad Umair Hassan ◽  
Ali K. Yetisen ◽  
Haider Butt
Keyword(s):  
Surface Modification ◽  
Contact Lenses ◽  
Laser Induced Surface Modification

Direct fabrication of nanoscale bio-adhesive patterns by electron beam surface modification of plasma polymerized poly ethylene oxide-like coatings

2008 ◽  
Vol 19 (12) ◽  
pp. 125306 ◽  
Author(s):  
Frédéric Brétagnol ◽  
Lucel Sirghi ◽  
Stéphane Mornet ◽  
Takao Sasaki ◽  
Douglas Gilliland ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electron Beam ◽  
Ethylene Oxide ◽  
Direct Fabrication ◽  
Beam Surface ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

A biomimetic approach to enhanced wettability of silicone hydrogel contact lenses using polybetaine surface modification

2012 ◽  
Vol 35 ◽  
pp. e9
Author(s):  
Alonzo D. Cook ◽  
Jun Li ◽  
Matt Skinner ◽  
Karen Schultz ◽  
Chris Loose ◽  
...  
Keyword(s):  
Surface Modification ◽  
Contact Lenses ◽  
Silicone Hydrogel ◽  
Biomimetic Approach
Sign in / Sign up

Export Citation Format

Share Document