In order to find a rapid. simple and sensitive method for determination of iodine in food. a gold nanoparticle modified electrode was constructed by cyclic voltammetry (CV) to detect iodine ion (I-). In situ reduction of gold nanoparticles (Mb@AuNPs) using methanobactin (Mb). https://pipingrockers.shop/product-category/brown-seaweed/