Simple fabrication of morphology-tunable Ag2S and Ag architectures assisted by denatured bovine serum albumin

► Aggregated forms of dBSA control the morphologies of Ag2S and Ag nanostructures. ► Ag microplates are produced from Ag2S precursor without additional reductants. ► Ag2S nanochains and raspberry-like nanostructures are obtained in aqueous solution.