摘要:
Described herein are modified gelatins or the pharmaceutically-acceptable salts or esters thereof comprising at least one actinically crosslinkable group covalently bonded to gelatin. The modified gelatins are useful in producing composites that ultimately can be used to produce three-dimensional engineered biological constructs. The composites are the polymerization product between the modified gelatin and at least one actinically crosslinkable macromolecule. Methods for making the modified gelatins are also described herein.
摘要:
Described herein are composites produced by reacting a first thiolated macromolecule with at least one compound having at least one thiol-reactive electrophilic functional group. The methods described herein permit the cross-linking of a variety of different thiolated macromolecules with one another. The composites described herein have a variety of biomedical and pharmaceutical applications, which are also described herein.
摘要:
Described herein are alkylated and semi-synthetic glycosaminoglycosan ethers, referred to herein as “SAGEs.” The synthesis of sulfated and alkylated SAGEs is also described. The compounds described herein are useful in a number of applications including use for ocular or ophthalmic treatment.
摘要:
Described herein is the synthesis of alkylated and semi-synthetic glycosaminoglycosan ethers, referred to herein as “SAGEs.” The synthesis of sulfated alkylated SAGEs is also described. The compounds described herein are useful in a number of applications including wound healing, drug delivery, and the treatment of a number of inflammatory diseases and skin disorders.
摘要:
Described herein is the synthesis of alkylated and semi-synthetic glycosaminoglycosan ethers, referred to herein as “SAGEs.” The synthesis of sulfated alkylated SAGEs is also described. The compounds described herein are useful in a number of applications including wound healing, drug delivery, and the treatment of a number of inflammatory diseases and skin disorders.
摘要:
Described herein are composites useful in tissue and organ engineering. In one aspect, the composite comprises the reaction product between a macromolecule comprising at least one thiol group and a gold nanoparticle. The thiolated macro-molecule crosslinks with the gold nanoparticle to produce a composite that is useful in anchoring cells. The composites can be used to form multi-layer 3-D structures, where the cells in each layer can aggregate and fuse with one another to form tissues and organs.
摘要:
Described herein is the synthesis of alkylated and semi-synthetic glycosaminoglycosan ethers, referred to herein as “SAGEs.” The synthesis of sulfated alkylated SAGEs is also described. The compounds described herein are useful in a number of applications including wound healing, drug delivery, and the treatment of a number of inflammatory diseases and skin disorders.
摘要:
Described herein are alkylated and semi-synthetic glycosaminoglycosan ethers, referred to herein as “SAGEs.” The synthesis of sulfated and alkylated SAGEs is also described. The compounds described herein are useful in a number of applications including use for ocular or ophthalmic treatment.
摘要:
The invention relates to a method for fractionally converting pennisetum hydridum into fuel ethanol with co-production of electricity generation and paper pulp, which comprises subjecting the pennisetum hydridum having been cut into segments to steam explosion treatment by utilizing a steam explosion device to obtain a steam explosion product, and said method is characterized in that it comprises the steps of: washing the steam explosion product with water to obtain fibers and water washing liquid containing a degraded hemicellulose, and separating and purifying the water washing liquid to obtain an xylo-oligosaccharide; fractionally teasing the fibers, and subjecting the obtained long fibers to an ethanol self-catalyzed pulping and then a bleaching treatment to obtain a paper pulp, and after recovering ethanol, obtaining an alcohol-soluble lignin by separation; preparing cellulase by a solid state fermentation, that is, taking the short fibers obtained by fractionally teasing as a fermentation substrate of Trichoderma viride to prepare a solid cellulase; mixing the short fibers, the solid cellulase and yeast to perform a simultaneous saccharification fermentation for obtaining the fuel ethanol and a fermentation residue, and producing CO2 by the fermentation; and drying the fermentation residue to prepare a biomass fuel for electricity generation. The method of the invention can realize a high efficient comprehensive utilization of the pennisetum hydridum resource.