Patent application number | Description | Published |
20090111162 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 04-30-2009 |
20090233339 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-17-2009 |
20100086678 | BRANCHED END REACTANTS AND POLYMERIC HYDROGEL TISSUE ADHESIVES THEREFROM - Branched end reactants having two or three functional groups at the ends are disclosed. The branched end reactants are used to prepare crosslinked hydrogel tissue adhesives, which have a good balance of mechanical properties in an aqueous environment. Kits comprising the branched end reactants and methods for applying a coating to an anatomical site on tissue of a living organism are also disclosed. | 04-08-2010 |
20100112063 | METHOD FOR PREPARING A HYDROGEL ADHESIVE HAVING EXTENDED GELATION TIME AND DECREASED DEGRADATION TIME - A method for extending the gelation time of an oxidized polysaccharide to react with a water-dispersible, multi-arm amine to form a hydrogel is disclosed. The extension of the gelation time is accomplished by using a chemical additive. The method also extends the time for the hydrogel to become tack-free, and may also be used to decrease the degradation time of the hydrogel. The chemical additive reacts with the functional groups of the oxidized polysaccharide or the water-dispersible, multi-arm amine, thereby reducing the number of groups available for crosslinking. The use of the resulting hydrogel for medical and veterinary applications is described. | 05-06-2010 |
20100125155 | ALDEHYDE-FUNCTIONALIZED POLYETHERS AND METHOD OF MAKING SAME - Aldehyde-functionalized polyethers containing thiomethylaldehyde groups are described. Also described is a method of preparing the aldehyde-functionalized polyethers. These functionalized polyethers may be useful for protein conjugation, surface modification, and for the formation of hydrogel adhesives and sealants which are useful for medical applications. | 05-20-2010 |
20100196975 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 08-05-2010 |
20100196976 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 08-05-2010 |
20100221797 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-02-2010 |
20100240108 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-23-2010 |
20100240109 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-23-2010 |
20100240110 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-23-2010 |
20100240111 | SEQUESTRATION OF FORMALDEHYDE TO STABILIZE NITRILASE SPECIFIC ACTIVITY WHEN CONVERTING GLYCOLONITRILE TO GLYCOLIC ACID - A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst. | 09-23-2010 |
20110250257 | FIBROUS TISSUE SEALANT AND METHOD OF USING SAME - Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds. | 10-13-2011 |
20130189221 | POLYSACCHARIDE-BASED POLYMER TISSUE ADHESIVE FOR MEDICAL USE - Method of forming tissue adhesives by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described. | 07-25-2013 |
20130190267 | POLYSACCHARIDE-BASED POLYMER TISSUE ADHESIVE FOR MEDICAL USE - Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described. | 07-25-2013 |
20130337036 | METHOD OF USING FIBROUS TISSUE SEALANT - Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds. | 12-19-2013 |
20150024268 | HYDROCARBON IONOMER COMPOSITIONS, LAYERINGS, ELECTRODES, METHODS FOR MAKING AND METHODS FOR USING - There is a composition comprising 1 to 17.5 wt. % ionomer composition comprising hydrocarbon ionomer and 50 to 99 wt. % carbon-sulfur composite made from carbon powder having a surface area of about 50 to 4,000 square meters per gram and a pore volume of about 0.5 to 6 cubic centimeters per gram. The composite has 5 to 95 wt. % sulfur compound. There is also a layering comprising a plurality of coatings. Respective coatings in the plurality of coatings comprise respective compositions. The respective coatings comprise at least one ionomer composition comprising hydrocarbon ionomer and at least one carbon-sulfur composite of carbon powder and sulfur compound. There are also electrodes comprising the composition or layering and methods of using such in cells. | 01-22-2015 |