Provided are gelatin powders and gels derived from marine sources of collagen such as jellyfish. Also provided are methods for producing marine-derived gelatin powders. The marine-derived collagen source is hydrolyzed then dialyzed to at least partially demineralize the marine-derived collagen source.

The present invention discloses a partially crosslinked hydrogels blended composition with enhanced viscosity and yield stress, which is formed by the polymerization of one or more colloid monomers through crosslinking. The polymerization is initiated by a photoinitiator under irradiation of the light of a specific wavelength, which promotes crosslinking of the one or more colloid monomers. The hydrogels blended composition can be further crosslinked with one or more other colloid monomers through repeated excitation of the photoinitiator. The hydrogels blended composition can be polymerized into a gel upon re-irradiation, and can also be used as a biomaterial for wound repair, three-dimensional cell culture, personal nursing care, health care, medical and pharmaceutical applications.

Compositions useful as dermal fillers and methods using such compositions to treat various skin and soft tissue conditions. The dermal fillers can comprise silk attached to hyaluronic acid using for example two cross linkers and can be used to treat of facial imperfections, facial defects, facial augmentations, breast imperfections, breast augmentations or breast reconstructions.

Provided is a recycling method of polyester wool blended fabric, which includes the following. A polyester wool blended fabric containing a dye is put into an acidic aqueous solution containing an oxidizing agent for heating and soaking, so as to degrade a wool in the polyester wool blended fabric, and perform decolorization at the same time to remove the dye. After that, a polyester fabric is obtained by filtration.

The invention relates to a gel comprising a first gelatin component and a second gelatin component in an aqueous medium, wherein the first gelatin component comprises gelatin particles comprising chemical cross-links and dehydrothermal cross-links; and the second gelatin component comprises a dissolved gelatin comprising chemical cross-links and at least one polysaccharide.

The present invention relates to a process for the surface treatment of poly(aryl ether ketone)s (PAEKs) comprising the following steps: Providing an article comprising one or more poly(aryl ether ketone)s (PAEKs); contacting at least one portion of the surface of the article containing one or more poly(aryl ether ketone)s (PAEKs) with an aldehyde,
wherein the aldehyde reacts with the poly(aryl ether ketone)(s) (PAEKs) on the at least one portion of the surface of the article to form a hydroxyalkyl and/or hydroxyaryl group,
a process for functionalizing surface-treated poly(aryl ether ketone)s (PAEKs) comprising the steps of: a) Treating at least one portion of the surface of an article containing one or more poly(aryl ether ketone)s (PAEKs) with the surface treatment process for poly(aryl ether ketone)s (PAEKs) described herein; b) Coating the treated at least one portion of the surface of the article with a composition comprising a chemical compound having chemical groups capable of forming a covalent bond with hydroxyalkyl and/or hydroxyaryl groups formed on the surface of the article,
an article comprising one or more poly(aryl ether ketone)s (PAEKs) and a coating on at least one surface of the article, wherein on the coated at least one portion of the surface of the article the poly(aryl ether ketone)(s) (PAEKs) contains hydroxyalkyl and/or hydroxyaryl groups; and at least one portion of the hydroxyalkyl and/or hydroxyaryl groups of the poly(aryl ether ketone)(s) (PAEKs) has formed covalent bonds with chemical groups of at least one chemical compound in the coating, and
the use of the article of the invention as described herein as a medical device and/or biotechnological applications, preferably as an implant, scaffold structure for in vitro applications and/or scaffold structure for cell culture applications.

A composite material includes a polymer matrix with a polymer having D-glucosamine monomer units and 50% or fewer N-acetyl-D-glucosamine monomer units. A salt can be disposed in the polymer matrix. A dispersed phase is disposed in the polymer matrix with the salt, and the dispersed phase and the polymer matrix form a porous composite foam. The porous composite foam includes, by weight, 0.5-3 times the dispersed phase to the polymer matrix, and the porous composite foam has a density of less than 1 g/cm.sup.3.

Disclosed is a method for producing a nanofibrous non-woven material and a nanofibrous non-woven material with cross-linked gelatin nanofibers. The method includes producing gelatin nanofibers; producing a nanofibrous material using the produced gelatin nanofibers; and treating the nanofibrous material by a crosslinking agent for forming adhesion bonds in the nanofibrous material and to obtain the nanofibrous non-woven material.

A composite hydrogel for light-cured 3D cell-laden printing and a preparation method and application thereof. The composite hydrogel of the present disclosure combines advantages of gelatin methacryloyl, sodium carboxymethylcellulose, hyaluronic acid-glutamic acid polymer, and the like. The provided composite hydrogel for 3D printing has the characteristics of low toxicity, good biocompatibility and adjustable mechanical properties, can provide cells with a three-dimensional living environment, promotes cell adhesion and migration on gradient scaffolds, and is suitable for tissue engineering scaffolds and cell-laden printing of tissues. The printing process of a scaffold is simple and can be completed within a short time, and the porosity and mechanical properties of the 3D printed hydrogel scaffold can be adjusted by adjusting the proportion of HA-Glu and Col in the hydrogel system.

Compositions useful as dermal fillers and methods using such compositions to treat various skin and soft tissue conditions. The dermal fillers can comprise silk attached to hyaluronic acid using for example two cross linkers and can be used to treat of facial imperfections, facial defects, facial augmentations, breast imperfections, breast augmentations or breast reconstructions.