Abstract: Disclosed herein compositions of polysaccharides chemically cross-linked by aromatic dialdehydes. The compositions may be in form of polymeric sheets for a variety of applications. Disclosed also nano-sized particles comprising the polysaccharide chemically cross-linked by aromatic dialdehydes. The nano-sized particles may further comprise lipids and surfactants. Intranasal delivery of the nano-sized particles enables delivery of biologically active agents into the brain. Topical and transdermal delivery of the nano-sized particles enables delivery of biologically active agents for treatment of systemic or dermatological disorders. Methods of manufacturing and uses of the compositions are also disclosed.

Abstract: Disclosed herein compositions of polysaccharides chemically cross-linked by aromatic dialdehydes. The compositions may be in form of polymeric sheets for a variety of applications. Disclosed also nano-sized particles comprising the polysaccharide chemically cross-linked by aromatic dialdehydes. The nano-sized particles may further comprise lipids and surfactants. Intranasal delivery of the nano-sized particles enables delivery of biologically active agents into the brain. Topical and transdermal delivery of the nano-sized particles enables delivery of biologically active agents for treatment of systemic or dermatological disorders. Methods of manufacturing and uses of the compositions are also disclosed.

Abstract: The invention provides a nano-sized particle comprising a cross-linked polymer, wherein the polymer is selected from the group consisting of a polyacrylic acid homopolymer; polymethacrylic acid homopolymer; poly(alkylcyanoacrylate) polymer; a copolymer comprising at least two monomers selected from acrylic acid, methacrylic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate, and alkyl cyanoacrylate/cyanoacrylic acid monomers; carboxymethyl cellulose; alginic acid polymer, polylactic-polyglycolic acid (PLGA), and xanthan gum; and wherein said polymer is cross-linked with a metal ion. A process for preparing such particles is also provided.

Abstract: The invention provides a nano-sized particle comprising a cross-linked polymer, wherein the polymer is selected from the group consisting of a polyacrylic acid homopolymer; polymethacrylic acid homopolymer; poly(alkylcyanoacrylate) polymer; a copolymer comprising at least two monomers selected from acrylic acid, methacrylic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate, and alkyl cyanoacrylate/cyanoacrylic acid monomers; carboxymethyl cellulose; alginic acid polymer, polylactic-polyglycolic acid (PLGA), and xanthan gum; and wherein said polymer is cross-linked with a metal ion. A process for preparing such particles is also provided.

Abstract: The invention provides a nano-sized particle comprising a cross-linked polymer, wherein the polymer is selected from the group consisting of a polyacrylic acid homopolymer; polymethacrylic acid homopolymer; poly(alkylcyanoacrylate) polymer; a copolymer comprising at least two monomers selected from acrylic acid, methacrylic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate, and alkyl cyanoacrylate/cyanoacrylic acid monomers; carboxymethyl cellulose; alginic acid polymer, polylactic-polyglycolic acid (PLGA), and xanthan gum; and wherein said polymer is cross-linked with a metal ion. A process for preparing such particles is also provided.

Abstract: The invention provides a transdermal, transmucosal pharmaceutical composition suitable for substantially extra-vascular application of at least one biologically active substance to biological membranes of a mammal, comprising a pharmaceutical or cosmetic composition comprising propylene carbonate at least one oil or source of fatty acid or surfactant; and water; in combination with the at least one biologically active substance wherein the propylene carbonate is adapted to enhance the bioavailability of the at least one biologically active substance.

Abstract: The invention provides a transdermal delivery system for local anesthetic, immunosuppresive and neurologically effective drugs, as well as for polypeptides and protein-based drugs, comprising a local anesthetic, immunosuppresive or neurologically effective drug, as well as a polypeptide or protein-based drug in combination with water-miscible tetraglycol and water for dissolving the drug in hydrogel form.

Abstract: The invention provides a composition of matter comprising molecular iodine and tetraglycol.

Abstract: The invention provides a composition of matter comprising molecular iodine and tetraglycol.

Abstract: The invention provides a transdermal delivery system for treating diabetes and other pathologic systemic conditions, comprising an active ingredient selected from the group consisting of peptides and proteins having an S—S bond and mixtures thereof and a pharmaceutically acceptable oxidizing agent selected from the group consisting of iodine, povidine-iodine and sources thereof, said system being essentially free of reducing agents and said oxidizing agent enabling and facilitating the penetration of said active ingredient through the skin layers and into the blood stream.

Abstract: The invention provides a transdermal delivery system for analgesic, anti-pyretic and anti-inflammatory drugs comprising an analgesic, anti-pyretic or anti-inflammatory drug is combination with water-miscible tetraglycol and water for dissolving the drug in hydrogel form.

Abstract: The invention provides a transdermal delivery system for treating diabetes and other pathologic systemic conditions, comprising an active ingredient selected from the group consisting of peptides and proteins having an S-S bond and mixtures thereof and a pharmaceutically acceptable oxidizing agent selected from the group consisting of iodine, povidine-iodine and sources thereof, said system being essentially free of reducing agents and said oxidizing agent enabling and facilitating the penetration of said active ingredient through the skin layers and into the blood stream.

Abstract: A process for treating contaminated liquid, in which the liquid to be treated is contacted with a charged polymeric material and with a second, oppositely charged polymeric material. The polymeric materials are soluble in the liquid, and at least one of the soluble polymeric materials is a branched polymeric material. Floc formation is allowed and the flocs are separated from the liquid. The first and second polymeric materials may be selected from the group consisting of polysaccharides, proteins, lipids and polyhydroxy alcohols.

Abstract: The invention is primarily directed to a mucosal delivery system comprising a porous matrix incorporating an active ingredient, said matrix have a pore size distribution such as to promote adhesion to a mucosal surface, and to permit transfer of said active ingredient toward the mucosal surface.

Abstract: A transdermal delivery system comprising an active ingredient selected from the group consisting of peptides, proteins and mixtures thereof and a pharmaceutically acceptable oxidizing agent. The transdermal delivery system is an easy-to-use topical system that facilitates the penetration of an active ingredient, such as insulin, through the skin layers and into the blood stream. Additionally, the invention includes a method for treating diabetes and other pathologic systemic conditions comprising administering an active ingredient selected from the group consisting of peptides, proteins and mixtures thereof and a pharmaceutically acceptable oxidizing agent.

Abstract: The invention provides a topical pharmaceutical composition for the prevention and treatment of lesions and sores of the skin or mucosa associated with a herpes virus, comprising a salt of an unsaturated C.sub.14-18 fatty acid having 1-2 double bonds as active ingredient therein, in combination with a pharmaceutically or cosmetically acceptable carrier.

Abstract: A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.

Abstract: Bioprosthetic materials, either natural or synthetic, are treated with trivalent iron cations, or salts, to prevent in vivo calcification. Such bioprosthetic materials include porcine aortic valve leaflets, bovine pericardium, aortic homografts, biocompatible elastomers, and the like which are intended for invasive, or in-dwelling use in a human or animal body. Simple incubation of the natural bioprosthetic materials in an iron ion-containing solution, such as aqueous FeCl.sub.3, particularly with the addition of an anticalcification agent, such as a diphosphonate, prior to implantation has been found to inhibit calcification of the biomaterial over a prolonged period, and to do so without adverse side effects. Incorporation of an iron-containing compound, with or without an additional anticalcification agent, into the formulation for polymers, such as polyurethane, has also been found to inhibit calcification with no adverse side effects.

Abstract: The invention relates to methods for the treatment of gingivitis, oral plaque and oral or dermatological fungal infections by the administration of a liquid methacrylic acid copolymer composition that contains a release adjusting agent and a pharmacological agent. The composition forms a solid film upon drying, and is capable of accomplishing the sustained release of the pharmacological agent such as to permit its use in the treatment or prevention of dental or dermatological conditions.

Abstract: An antiviral topical pharmaceutical composition for treating viral diseases of the skin or mucosa comprises a poorly soluble antiviral nucleoside derivative, dispersed in an aqueous gel carrier containing a gelling agent and a water-soluble carboxylic or dicarboxylic acid salt.