Abstract: This invention provides new, highly conductive materials comprising crystallized electron pairs within an insulating matrix. Crystallized electron pairs can combine with each other to form quasi-one-dimensional structures, quantum nanowires, that have nanoscale diameters and microscale lengths or longer. Quantum nanowires can also be formed as closed loops. Quantum nanowires comprising crystallized electron pairs exhibit very high electrical conductivity over a range of temperatures from 0 Kelvins up to the decomposition temperature of the materials. The quantum nanowires of this invention can be used in a variety of electronic, opto-electronic, electro-optical, motive, sensing and other ways to provide nanoscale structures for manufacturing small devices having low power requirements, low energy dissipation and very rapid responses.

Abstract: Quantum nanowires are produced in a medium comprising ions, dopants and free electrons, wherein the free electrons are solvated by complexes of ions and dopants. Electrical conductivity of the quantum nanowires can be higher than for conventional metal conductors. Quantum nanowires can be prepared in linear or circular form, and can be used to manufacture electrical components including transistors, sensors, motors and other nanoscale passive or active devices. Nanoscale devices can be made in liquid, semisolid, or solid media. Methods are provided for the manufacture of quantum nanowires and devices made therefrom. The devices can be used in the manufacture of computers, electronic circuits, biological implants and other products.

Abstract: There are disclosed compositions and methods for cleaning contact lenses using water soluble enzyme-polymer conjugates. A preferred method includes providing the subject enzyme-polymer conjugates in a tablet form, dissolving the tablet in an aqueous solution and subsequently soaking a contact lens in the resulting solution. Other methods include providing the enzyme-polymer conjugate in a liquid form and contacting a contact lens therewith.

Abstract: An improved method for cast molding RGP contact lenses employs mold sections injection molded from a specific class of thermoplastic, polyolefin resins.

Abstract: Multispheric contact lenses have a posterior surface including a central, concave spherical optical zone and at least two concave spherical curves peripheral to the central concave optical zone. The lens includes a fillet convex curve connecting the central zone and the first peripheral curve, and fillet convex curves connecting adjacent peripheral concave curves, wherein each junction of a fillet convex curve with a concave spherical curve is tangential. The lenses have an anterior surface including one or more convex spherical curves.

Abstract: A composition for cleaning and wetting contact lenses comprising a non-amine polyethylenoxide-containing copolymeric material having a hydrophilic-lipophile balance (HLB) of at least about 18, a surface active agent having cleaning activity for contact lens deposits and having HLB values of less than 18, and a wetting agent. Preferred embodiments of the present invention include those having from about 0.001 to about 10 weight percent of a non-amine polyethyleneoxy-containing materials, particularly those selected from: ethoxylated glucose derivatives, ethoxylated ethers of sorbitol, copolymers comprising ethyleneoxy and propyleneoxy monomeric units, and mixtures thereof. Preferred embodiments further include from about 0.001 to about 5 weight percent of the surface active agent and from about 0.1 to about 10 weight percent of a wetting agent selected from: cellulosic materials, silicone polymers containing an alkyleneoxide side chain, polyvinyl alcohols, polyvinyl pyrrolidones, and mixtures thereof.

Abstract: Compositions for the care of contact lenses include a silicone polymer containing an alkyleneoxide side chain.

Abstract: A preservative system for ophthalmic solutions, particularly contact lens solutions, comprises:(a) chlorhexidine or a water-soluble salt thereof; and(b) polyhexamethylene biguanide or a water-soluble salt thereof.

Abstract: Copolymers useful as contact lens materials are the polymerization product of a mixture comprising:(a) an itaconate;(b) a compound represented by formula (I): ##STR1## wherein: each A is independently an activated unsaturated radical;each R is independently selected from the group consisting of a C.sub.1 -C.sub.12 monovalent hydrocarbon radical, a C.sub.1 -C.sub.12 monovalent hydrocarbon radical containing ether linkages, a halogen-substituted C.sub.1 -C.sub.12 monovalent hydrocarbon radical, and a halogen-substituted C.sub.1 -C.sub.12 monovalent hydrocarbon radical containing ether linkages;each R' is independently a C.sub.1 -C.sub.22 divalent hydrocarbon radical; andn averages about 15 to about 50;(c) an ethylenically unsaturated organosiloxane monomer; and(d) a hydrophilic monomer.

Abstract: Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.

Abstract: A method for improving the antibacterial efficacy of an ophthalmic solution, particularly a solution for the care of contact lenses, comprises providing an article molded from a plastic resin including an inorganic carrier retaining antibacterial metal ions, and placing the ophthalmic solution in contact with the plastic resin.

Abstract: A hard contact lens formed of a polymer having silicon and chlorine incorporated therein is exposed to a solution containing an admixture, an alkylphenyl polyether alcohol surfactant, a second surfactant which is anionic and a third surfactant having a preservative action and the solution is rubbed against the contact lens to remove surface deposits thereon.

Abstract: New contact lens cleaning materials are designed for use in cleaning fluorine and silicon containing hard contact lenses. The contact lens cleaning materials are water based and contain an alkylphenyl polyether alcohol surfactant, an anionic second surfactant selected to have good cleaning action with respect to protein and mucous-like material deposits and a phosphate ester surfactant.

Abstract: A product and method of cleaning or conditioning contact lenses is provided. Lens cleaning or conditioning is accomplished in a pouch having first and second walls between which the contact lens can be inserted along with a cleaning or conditioning solution and gently manipulated to clean or condition the contact lens surface.

Abstract: New contact lens cleaning materials are designed for use in cleaning fluorine and silicon containing hard contact lenses. The contact lens cleaning materials are water based and contain an alkylphenyl polyether alcohol surfactant and an anionic second surfactant selected to have good cleaning action with respect to protein and mucous-like material deposits.

Abstract: Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.

Abstract: Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include components which modify contact lens mechanical, optical and transport properties as well as surface characteristics to achieve at least some compositions having an oxygen permeability of at least DK35 with a refractive index of from 1.35 to 1.5 and a percent hydration below 2 percent of total weight. Contact lenses made of materials of this invention are highly permeable to oxygen and resistant to the deposition of tear components providing extended wear capability through improved biocompatibility.

Abstract: Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include components which modify contact lens mechanical, optical and transport properties as well as surface characteristics to achieve at least some compositions having an oxygen permeability of at least DK35 with a refractive index of from 1.35 to 1.5 and a percent hydration below 2 percent of total weight. Contact lenses made of materials of this invention are highly permeable to oxygen and resistant to the deposition of tear components providing extended wear capability through improved biocompatibility.

Abstract: Multifunctional organopolysiloxane resin systems are provided whose starting materials comprise a reactive vinyl containing silane, a disubstituted silane and a trisubstituted silane hydrolyzed together to form a resin system. The preferred material of the resin system has a viscosity of from 7 to 70 centistokes at 25.degree. C. The preferred material is in the form of a contact lens and also contains an ester and a hydrophilic agent.

Abstract: According to the invention contact lenses are formed of unsaturated, multifunctional, organosiloxanes alone or mixed with monofunctional organosilanes and in some cases a hardening agent such as methyl methacrylate, hydrophilic monomer wetting agents, and itaconate hydrophilic and hardening agents. The multifunctional organosiloxane adds higher impact strength and reduces brittleness, probably due to greater cross-linking density in the final product and retains the desirable properties of silicone-containing materials for use in contact lenses.