Abstract: The present invention provides a process of preparing a novel carboxylic acid derivative of dextran. In particular, in the present invention, carboxylated dextran containing at least one carboxylic acid is reduced to remove all or substantially all reducing groups.
Abstract: The present invention relates to a method of reducing the risk of infections and the risk of conception. In particular, the invention relates to cellulose sulfate having contraceptive and anti-microbial properties. Cellulose sulfate may be administered in appropriate dosage forms to reduce the risk of infections or the risk of conception. It can also be used during sexual contact to concomitantly reduce the risk of conception and the risk of sexually transmitted diseases.
Type:
Grant
Filed:
September 29, 1995
Date of Patent:
May 16, 2000
Assignees:
Polydex Pharmaceuticals Ltd., Rush-Presbyterian-St. Luke's Medical Center
Inventors:
Robert A. Anderson, Lourens J. D. Zaneveld, Thomas C. Usher
Abstract: Cosmetic preparations comprising water soluble fatty acid amide derivatives of hydrolyzed collagen are found to have a substantial degree of permeability to the stratum corneum of human skin and to be effective in improving skin texture, moisture retention and minimizing wrinkles.
Abstract: This invention relates to a cosmetic preparation which comprises novel derivatives of solubilized elastin which are fatty acid amides of elastin, and which have been found to permit deeper penetration and a higher percentage absorption of elastin into the stratum corneum of human skin.
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