A three-dimensional network aqueous gel and a manufacturing method thereof are disclosed. A water-soluble polymer is first added into a solvent and uniformly mixed, followed by hydrolysis to form a sol, and vacuum is applied to convert the sol into a gel, followed by a polycondensation reaction to form a three-dimensional network aqueous gel. The three-dimensional network aqueous gel is formed of the water-soluble polymer that includes a group including sodium alginate and sodium carboxymethyl cellulose. The water-soluble polymer is interconnected to form a three-dimensional network structure. The three-dimensional network aqueous gel is of a gel-enclosed form, which uses the three-dimensional network structure formed of a high-molecule polymer to enclose medicine, so as to more effectively protect the active ingredient and provide an effect of controlled released to thereby extend therapeutic period and reduce side effects of irritating skin.

Provided herein are antimicrobial coating compositions and food packaging materials coated therewith. The coating compositions include at least one antimicrobial active agent and a hydrophilic polymer, such that the active agent is immobilized within the composition.

Provided is a method of manufacturing an electrolyte for dye-sensitized solar cells, the method including: preparing a hydrogel membrane; immersing the hydrogel membrane in an electrolyzing solution containing iodine or iodide such that the hydrogel membrane is impregnated with iodide ions; and drying the hydrogel membrane.

Disclosed herein are matrices, compositions and methods of making matrices. The matrix comprises a biomolecule and the matrix is a dried, cross-linked foam. The matrix is not lyophilized. The method comprises foaming the composition, crosslinking the composition and drying the composition. Matrices disclosed herein are useful as wound dressings and treating wounds.

A method and a mineral wool product include a multiple of lamellae, such as a sandwich panel core. The product includes a plurality of lamellae cut from a mineral wool web, and bonded together by applying an adhesive on the surfaces of two adjacent lamellae to form a web-like product, wherein the adhesive comprises at least one hydrocolloid.

Pitch granules including a core made up of a first composition including at least one pitch, the composition having a penetrability at 25° C. of 0 to 45 1/10 mm, a ring-and-ball softening temperature (TBA) of 55° C. to 175° C., understanding the penetrability as measured according to standard EN 1426 and the TBA as measured according to standard EN 1427, and a layer encapsulating at least one portion of the surface of the core, the layer being made up of a coating composition including at least one anti-caking agent.

Provided herein is a method for preparing microcarrier particles, comprising the steps of allowing the dispersed phase liquid flow through a multi-hole plate at a low temperature to form liquid microspheres in a continuous phase, and enabling a synthetic polymer and/or natural biological macromolecules within the liquid microspheres to be subject to a curing reaction at a low temperature to form particles. Further provided herein are the method for preparing an emulsion and an apparatus and process system for preparing microcarrier particles, which can be used for preparing emulsions and microcarrier particles on a large scale.

The present disclosure discloses a preparation method and use of a crosslinked hydrogel for muscle stem cell culture, and belongs to the technical field of biological food materials. Chitosan, alginate, dextran and Ca.sup.2+ are crosslinked through physical crosslinking to form a double-network hydrogel with a high mechanical strength, the hydrogel is coated with heparin and collagen through dip coating, such that the hydrogel can immobilize growth factors and adhere to cells. Meanwhile, extracted primary muscle stem cells are inoculated onto the hydrogel and cultured in a growth medium (79% of DMEM, 10% of FBS and 1% of double antibodies) for 24 h. The cells are cultured in an incubator with a differential medium (97% of DMEM, 2% of horse serum and 1% of double antibodies) for 7 d. The hydrogel can enhance the absorption to nutrient substances by the muscle stem cells and facilitate growth of the muscle stem cells. The double-network hydrogel has the potential to be a scaffold for growth of muscle stem cells for cultured meat from stem cells.

Described is a crosslinked hydrogel for muscle stem cell culture and a preparation method and use thereof. The preparation method includes: dissolving collagen to prepare a solution and adding alginate and heparan sulfate proteoglycan and uniformly mixing with the collagen solution; adding ε-PL and TGase into the solution, uniformly stirring, and putting a slurry into a mold for crosslinking to obtain the hydrogel. The hydrogel is prepared by linking the collagen, the polylysine, and the heparan sulfate proteoglycan using the TGase to form covalent crosslinking, and forming a compact three-dimensional “egg box” network structure through a physical electrostatic interaction between the polylysine and the alginate.

A method for treating biomass to manufacture biomass beads adapted to an implementation in a gasification method, the method comprising the following steps: a) providing a biomass powder, for example a wood bark powder, the particle size of the biomass powder preferably being less than 200 μm, b) providing an alginate solution comprising water and alginate, for example potassium alginate or sodium alginate, c) adding the biomass powder to the alginate solution and mixing, whereby a colloidal suspension is formed, d) dropwise adding the colloidal suspension to an ionotropic coagulation bath comprising multivalent ions, whereby biomass beads are formed.