Abstract: The present disclosure provides a fire retardant wood, a preparation method thereof, and a use of metal halide. The preparation method of fire retardant wood includes: impregnating a wood with a salt solution. By injecting low-cost metal halide into the interior of wood, the present disclosure obtains wood with natural color and texture and high flame retardant ability, which is very suitable for use in decorative environment and is expected to be applied in many fields such as furniture, architecture, shipbuilding and ancient wood preservation.

Abstract: The present invention, in some aspects, provides compositions including a solution comprising a plurality of exfoliated silk microfibrils and/or exfoliated silk nanofibrils, wherein the micro- or nano-fibrils are characterized as having a substantially nematic structure, as well as methods for making and using the same.

Abstract: The present invention provides, inter alia, compositions including at least one pliable layer comprising a plurality of silk fibroin nanofibrils, and at least one rigid layer comprising a plurality of mineral crystals, wherein each rigid layer is associated with at least one pliable layer, as well as methods for the production and use thereof.

Abstract: The present invention, in some aspects, provides compositions including a solution comprising a plurality of exfoliated silk microfibrils and/or exfoliated silk nanofibrils, wherein the micro- or nano-fibrils are characterized as having a substantially nematic structure, as well as methods for making and using the same.

Abstract: The present invention provides, inter alia, compositions including at least one pliable layer comprising a plurality of silk fibroin nanofibrils, and at least one rigid layer comprising a plurality of mineral crystals, wherein each rigid layer is associated with at least one pliable layer, as well as methods for the production and use thereof.