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Interpenetrating Polymer Network Hydrogel Contact Lenses


Stanford Reference:

06-308


Abstract


A multidisciplinary team of Stanford University inventors have developed a new silicone-free hydrogel material for contact lenses that possesses essential properties for maximum wearer comfort. In addition to high oxygen permeability and resistance to protein adsorption, the blended-polymer material has excellent optical and mechanical properties.

Stage of Research
In preliminary work, the inventors have shown that these hydrogels are biocompatible in an animal model.

Ongoing Research
Continuing research entails further characterization of double network properties and the cellular response to them both in vitro and in vivo.


Applications


  • Contact lens

Advantages


  • High oxygen permeability - 15 - 90 Barrers
  • High water content - 70% - 90%
  • Resistant to protein adsorption
  • High tensile strength (1MPa - 10 MPa) - approximately 20 times stronger than their component single networks alone
  • High transparency - 70% or more

Publications



Related Web Links



Innovators & Portfolio



Patent Status



Date Released

 3/21/2014
 

Licensing Contact


Irit Gal, Senior Licensing Associate
650-723-1586 (Business)
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Related Keywords


Contact Lens   materials: polymer   ophthalmology   medical devices: prosthetics/rehabilitation   
 

   

  

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