EREIN we present a new green highly branched polymer ….…precursor, namely starch-polyacrylic acid graft copolymer for synthesis of silver nanoparticles (AgNPs) via involvement of the copolymer in dual reduction of Ag + and stabilization of the formed AgNPs.Assessment of the formation of AgNPs was realized through submitting the silver colloidal solution of UV-vis spectral analysis; meanwhile the t...