Abstract:
The present invention provides for vitamin A derivative selected from the group consisting of retinol, retinyl ester and any combination thereof incorporated into liposomes formed with alkylammonium fatty acid salts, and methods for manufacturing same. The liposomes of the invention may deliver vitamin A derivative materials at the occurrence of a preset triggering condition. Preferred liposomes of the invention are cationic liposomes. The preferred liposomes of the invention are formed with alkylammonium fatty acid salts, e.g., trialkylammonium fatty acid salts of long chain amides. The encapsulated vitamin A derivative is thus stabilized by the liposomes. The present invention thus also provides a method of stabilizing vitamin A derivative be encapsulation in such liposomes. The liposomes of the invention are used to provide topical skin treatment formulations useful in the treatment of skin.
Abstract:
The present invention relates to a sunscreen formulation which exhibits superior ultraviolet protection and water resistance than prior art sunscreen compositions. The sunscreen formulation comprises (a) a dispersion comprising a sunscreen active agent and (b) a base composition comprising a rheological modifying agent and water. The sunscreen formulation is substantially free of surfactants. According to a preferred embodiment, the sunscreen active agent is ethylhexylmethoxycinnamate, butylmethoxydibenzoylmethane, or a combination thereof. The sunscreen formulation preferably comprises a phosphorylated starch derivative as a rheological modifying agent. Another embodiment of the present invention is a method of protecting skin or hair from ultraviolet radiation by applying an effective amount of the sunscreen formulation of the present invention to the skin or hair.
Abstract:
The present invention provides for liposomes formed with alkylammonium fatty acid salts, and methods for manufacturing same. The liposomes of the invention may deliver entrapped load material or materials at the occurrence of a preset triggering condition. Preferred liposomes of the invention are cationic liposomes. The preferred liposomes of the invention are formed with alkylammonium fatty acid salts, e.g., trialkylammonium fatty acid salts of long chain amides. The liposomes of the invention are used to encapsulate both hydrophobic and hydrophilic load materials. The liposomes formed accordingly are capable of delivering their loads upon the occurrence of a trigger or control condition.
Abstract:
A method for authenticating and verifying a pharmaceutical item to be genuine is described. The method for authenticating a tablet comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to a tablet or capsule. The method also comprises collecting a sample of the tablet and verifying the tablet is genuine by detecting the particular nucleic acid material.
Abstract:
The present invention relates to a composition comprising a wound dressing device and cholesteryl sulfate and especially to a composition containing cholesteryl sulfate and at least one carrier material for use as a haemostatic agent, as well as to a method for its preparation and use.
Abstract:
A method for authenticating and verifying an item to be genuine is described. The method for authenticating the item comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to ink within an ink cartridge or a toner compound within a toner housing. The method also comprises collecting a sample of either the ink or toner compound and verifying the ink or toner is genuine by detecting the particular nucleic acid material.
Abstract:
A liposome for use in encapsulating both hydrophobic and hydrophilic substances (i.e., a "payload"),is disclosed which is capable of delivering their load upon the occurrence of a trigger or control condition. The liposomes are formed to stably encapsulate a particular active agent to form a delivery vehicle for the agent. The liposomes of the delivery vehicle are stable in a particular environment but become unstable or permeable if passed from the stable environment (e.g., characteristic of a particular pH and/or temperature and/or ionic strength) to a changed or unstable environment, thereby delivering their payload.
Abstract:
This invention pertains to methods for generating large quantities of DNA security markers by combinatorial variation techniques using polymorphic fragment length DNA for unique identification security marker applications such as explosive ink used in dye/smoke pack and cash carrying boxes.
Abstract:
A composition containing a protease and glycosidase is provided for removing nits in the treatment of lice infestation. The protease and glycosidase are separated from each other to prevent the protease from hydrolyzing the glycosidase Separation is accomplished by encapsulating either the protease or glycosidase in a lipidic bilayer vesicle while leaving the other outside the vesicle. The protease and glycosidase destroy complex carbohydrate and protein in nit shells, nit embryos and substances secreted by adult lice. In a method of treatment, an infestation site such as hair is treated with a pediculoside and then with the composition containing a protease and glycosidase, and nits are removed such as by washing.
Abstract:
A cosmetic composition includes (a) ether alcohols conforming to the general formula C.sub.(n) H.sub.(2n+2) O.sub.(n/2), where n is an integer which ranges 4 to 12; (b) a homopolymer of acrylic acid cross-linked with an allyl ether of pentaerythritol or an allyl ether of sucrose, or copolymers of acrylic acid or acrylate derivative/acrylonitrile copolymers, or polyacrylic acid; (c) a fragrance oil or oils, or cosmetically acceptable oils or oily-type materials; and (d) water.