Abstract: There is provided a protein-halide perovskite nanocrystal (p-HPNC) comprising: a crystalline core of halide perovskites and an outer layer made of protein surrounding the crystalline core. The protein has a net positive electric charge at a pH of 3 or less in its free state. The protein is linked to the surface of the crystalline core, and the halide perovskites have a formula ABX3, where A is a monovalent cation, B is a divalent cation, and X is a monovalent halide anion.

Abstract: Biofilm-enhanced textiles and methods of preparing same are disclosed. The biofilm-enhanced textiles include a textile; and a biofilm comprising one or more microorganisms and an extracellular material, the one or more microorganisms being engineered to express one or more proteins on a cell surface to adhere to the textile, and to express one or more genes that produce a response to changes within the textile or to an environment surrounding the textile.