A stable, aqueous composition containing a crosslinked, nonionic, amphiphilic polymer capable of forming a yield stress fluid in combination with a surfactant is disclosed. The yield stress fluid is capable of suspending insoluble materials in the presence of electrolytes, perfumes, fragrances and/or organic acid preservatives.

A formulation for silicone hydrogel for use in contact lens includes at least one silicone monomer having a weight percent of the total hydrogel weight in a range from about 10% to about 35%, at least one hydrophilic monomer having a weight percent of the total hydrogel weight in a range from about 15% to about 40%, at least one crosslinker, and at least one initiator. A silicone hydrogel, and a method to form silicone hydrogel are provided.

A formulation for silicone hydrogel for use in contact lens includes at least one silicone monomer having a weight percent of the total hydrogel weight in a range from about 10% to about 35%, at least one hydrophilic monomer having a weight percent of the total hydrogel weight in a range from about 15% to about 40%, at least one crosslinker, and at least one initiator. A silicone hydrogel, and a method to form silicone hydrogel are provided.

A formulation for silicone hydrogel for use in contact lens includes at least one silicone monomer having a weight percent of the total hydrogel weight in a range from about 10% to about 35%, at least one hydrophilic monomer having a weight percent of the total hydrogel weight in a range from about 15% to about 40%, at least one crosslinker, and at least one initiator. A silicone hydrogel, and a method to form silicone hydrogel are provided.

Polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions are useful in dispersing various compounds in a carrier liquid. The polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions employ polymers having both hydrophilic domains and hydrophobic domains so that the compositions can disperse particles such as polymer particles or droplets in a continuous phase as well as provide stable dispersions that have not been provided before. The antimicrobial properties of the compositions provide much-needed capabilities of fighting infectious agents such as bacteria and viruses in a wide spectrum of products such as paint, adhesives, and coatings. Methods of using these compositions as well as methods of making products using the compositions are disclosed.

Polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions are useful in dispersing various compounds in a carrier liquid. The polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions employ polymers having both hydrophilic domains and hydrophobic domains so that the compositions can disperse particles such as polymer particles or droplets in a continuous phase as well as provide stable dispersions that have not been provided before. The antimicrobial properties of the compositions provide much-needed capabilities of fighting infectious agents such as bacteria and viruses in a wide spectrum of products such as paint, adhesives, and coatings. Methods of using these compositions as well as methods of making products using the compositions are disclosed.

Polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions are useful in dispersing various compounds in a carrier liquid. The polycationic polymeric antimicrobial surfactant and polymeric biocompatible antimicrobial surfactant compositions employ polymers having both hydrophilic domains and hydrophobic domains so that the compositions can disperse particles such as polymer particles or droplets in a continuous phase as well as provide stable dispersions that have not been provided before. The antimicrobial properties of the compositions provide much-needed capabilities of fighting infectious agents such as bacteria and viruses in a wide spectrum of products such as paint, adhesives, and coatings. Methods of using these compositions as well as methods of making products using the compositions are disclosed.

The present invention recognizes that medical devices, such as but not limited to contact lenses, can be made having a coating made at least in part using printing technologies to provide drug storage and drug release structures. The coating preferably includes at least one drug reservoir layer and a least one barrier layer, and can include structures, such as but not limited to capillary structures that alone or in combination modulate the release of the drug from the coating. One aspect of the present invention is a medical device that incorporates a drug in at least one coating.

The present invention recognizes that medical devices, such as but not limited to contact lenses, can be made having a coating made at least in part using printing technologies to provide drug storage and drug release structures. The coating preferably includes at least one drug reservoir layer and a least one barrier layer, and can include structures, such as but not limited to capillary structures that alone or in combination modulate the release of the drug from the coating. One aspect of the present invention is a medical device that incorporates a drug in at least one coating.

A method of forming a patterned polymer layer on a substrate and a substrate having a polymer layer formed by the method. The method includes providing a substrate comprising a first surface having a first surface energy and a pattern located on the substrate forming a second surface having a second, lower surface energy than the first surface, and selectively depositing a polymeric layer onto the first surface using a monomer material in an initiated chemical vapor deposition process, wherein the initiated chemical vapor deposition process is operated under supersaturation conditions during the deposition process.