| Gold nanoparticles have been widely applied in many fields, such as biological sensors, tumour treatments, analysis of heavy metals and catalytic reactions, due to their unique optional, electronic and catalytic properties. The biological synthesis method has many advantages, such as biocompatibility of products, mild reaction conditions, more green and sustainable. Gold nanoparticles were prepared by saccharomyces in this paper. The UV-Vis was used to study the reaction conditions, FESEM, EDS and TEM have been employed to determine the shape and content of gold nanoparticles. FT-IR was used to analysis the change of saccharomyces before and after reduction. It shows that when the reaction time was 60 min, the concentration of precursor was 1.0 g/L, the obtained gold particles were uniform, and their mean size was 8.69 nm. It is inferred that multiple-hydroxyl compound, proteins were involved in the reduction reaction from FT-IR results. |
