In particular, the use of a mixture of water and an alcohol under alkaline conditions is promising to simply lead at room temperature (RT) to stable SF colloidal Au NPs . Possible knobs previously reported to achieve size control in this approach are different concentrations of HAuCl4 and/or base, or different alcohols contents . Recently, a comparison of different alcohols as source of reducing agents shined lights on a promising yet scarcely explored alternative options to achieve size control by using different alcohols . An account of the pros and cons of using different alcohols is proposed in Table and detailed below.