Wet etching of gold on graphene is challenging due to the weak adhesion of the resist mask to graphene. We report an operating procedure for alkali ion-free wet etching of gold on graphene using a mixture of hydrochloric and nitric acids (aqua regia) with a high lateral resolution down to 100 nm. We investigate the role of positive and negative resists. electron beam lithography (EBL)... https://www.getpureroutine.com/hot-save-color-touch-77-45-cheap-limited-grab/