A cell culture article is provided. The cell culture article includes a substrate of a polygalacturonic acid compound crosslinked with a divalent cation, the polygalacturonic acid compound being selected from at least one of: pectic acid; partially esterified pectic acid, partially amidated pectic acid and salts thereof. The substrate is digestible by digestion reagents into components including of galacturonic acid monomers and the divalent cation. Methods of harvesting cells from the cell culture article are also provided. The methods include performing a series of wash and/or centrifugation cycles to reduce components in the harvest solution.

A cell culture article is provided. The cell culture article includes a substrate of a polygalacturonic acid compound crosslinked with a divalent cation, the polygalacturonic acid compound being selected from at least one of: pectic acid; partially esterified pectic acid, partially amidated pectic acid and salts thereof. The substrate is digestible by digestion reagents into components including of galacturonic acid monomers and the divalent cation. Methods of harvesting cells from the cell culture article are also provided. The methods include performing a series of wash and/or centrifugation cycles to reduce components in the harvest solution.

A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

An aqueous binder composition is provided that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

An aqueous binder composition is provided that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

A composition for providing a barrier between tissues and/or organs during or after a surgical procedure. The composition is a flowable solution of a hydrophobically-modified chitosan, wherein the hydrophobic modifications are selected to allow for adherence to tissue, cohesiveness of the composition upon application to tissue, and degradation over about two weeks after application. A method for providing a barrier between tissues and/or organs during or after a surgical procedure. Applying a hydrophobically-modified polymer to surfaces of tissues or organs in within a surgical site either before, during, and/or after a surgical procedure, wherein the modified polymer reduces adhesion between organs or tissues after surgery.

A composition for providing a barrier between tissues and/or organs during or after a surgical procedure. The composition is a flowable solution of a hydrophobically-modified chitosan, wherein the hydrophobic modifications are selected to allow for adherence to tissue, cohesiveness of the composition upon application to tissue, and degradation over about two weeks after application. A method for providing a barrier between tissues and/or organs during or after a surgical procedure. Applying a hydrophobically-modified polymer to surfaces of tissues or organs in within a surgical site either before, during, and/or after a surgical procedure, wherein the modified polymer reduces adhesion between organs or tissues after surgery.

Fluid contaminants may be prevalent in many industries, such as the mining industry. Functionalized saccharide polymers comprising two or more monosaccharide units linked by glycosidic bonds and having a portion of the monosaccharide units oxidatively opened and functionalized with at least one aminocarboxylic acid covalently bound through nitrogen at a site of oxidative opening may be utilized in conjunction with fluid remediation processes, such as froth flotation. In non-limiting examples, the functionalized saccharide polymers may also be useful for promoting dust control, particulate coating, clay stabilization, and various subterranean treatment operations. Glycine represents one example of an aminocarboxylic acid that may be covalently bonded through nitrogen at a site of oxidative opening.

Disclosed are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer and including a natural hydrogel and a silane coupling agent.