Title Green synthesis of self-oriented flower-like Ag@Ag2O nanostructures functionalized with L-Tryptophan for colorimetric simultaneous determination of ultra-trace level of thiamin and riboflavin Type Article Keywords Hierarchical flower-like Ag@Ag2O · Colorimetric simultaneous determination · LSPR · Thiamin · Riboflavin · Padina extract Abstract Hierarchical flower-like Ag@Ag2O · Colorimetric simultaneous determination · LSPR · Thiamin · Riboflavin · Padina extract Researchers Maryam Abbasi Tarighat (First researcher) , zahra khosravani (Second researcher) , gholamreza Abdi (Third researcher)