Abstract: This document provides methods and materials for delivering agents to hair, skin, and/or nails using one or more adhesive molecules alone or in combination with one or more interlocking metals, one or more dyes, and/or one or more polypeptides. For example, methods and materials for delivering interlocking metals, dyes, or polypeptides to hair, skin, or nails of a mammal (e.g., a human) are provided.

Abstract: An insulated building structure, in particular an insulated roof structure or a wall structure of a building, comprises at least one thermal insulation layer. At least one moisture-variable protective layer for the thermal insulation layer is provided on an outer side of the thermal insulation layer and on an inner side of the thermal insulation layer facing a building interior of the building. The protective layers each have a water vapor diffusion equivalent air layer thickness Sd. The water vapor diffusion equivalent air layer thicknesses Sd of the two protective layers deviate from each other by less than 20%, preferably less than 10%, in the range of a relative humidity from 0% to 25% and/or in the range of a relative humidity from 80% to 100%.

Abstract: A moisture-variable protective layer is to be used in particular for protecting a thermal insulating layer in insulated building structures, such as roof and/or wall structures of a building. The protective layer has a water vapor diffusion-dependent air layer thickness Sd that is dependent on the ambient humidity. The protective layer at least partly consists of and/or comprises a material that has a water vapor diffusion equivalent air layer thickness Sd of greater than 10 m at a relative humidity of the atmosphere surrounding the protective layer in the range from 0% to 25% and has a water vapor diffusion equivalent air layer thickness Sd of less than 0.4 m at a relative humidity of the atmosphere surrounding the protective layer in the range from 90% to 100%.

Abstract: An insulated building structure, in particular an insulated roof structure or a wall structure of a building, comprises at least one thermal insulation layer. At least one moisture-variable protective layer for the thermal insulation layer is provided on an outer side of the thermal insulation layer and on an inner side of the thermal insulation layer facing a building interior of the building. The protective layers each have a water vapor diffusion equivalent air layer thickness Sd. The water vapor diffusion equivalent air layer thicknesses Sd of the two protective layers deviate from each other by less than 20%, preferably less than 10%, in the range of a relative humidity from 0% to 25% and/or in the range of a relative humidity from 80% to 100%.

Abstract: This document provides methods and materials for delivering compounds to teeth and methods and materials for providing teeth with a whiter appearance. For example, methods and materials are provided for contacting teeth with one or more adhesive molecules (e.g., mussel adhesive polypeptides or polymer containing a plurality of 3,4-dihydroxyphenyl-L-alanine residues) in combination with one or more fluorescence emitting polypeptides (e.g., a blue fluorescent protein (BFP)) and/or whitening particles to provide the teeth with a whiter appearance.

Abstract: This document provides methods and materials for providing teeth with a white appearance. For example, methods and materials are provided for contacting teeth with one or more fluorescence emitting polypeptides (e.g., a blue fluorescent protein (BFP)) and adhesive molecules (e.g., mussel adhesive polypeptides) to provide the teeth with a whiter appearance.