I am having difficulty doing lift-off of Shipley 1813 resist from glass following electron beam evaporation of Ti/Au. The evaporation follows standard photolithographic UV exposure and developing. The lift-off protocol I am using is sonication in acetone. Out of frustration I have even soaked the sample in nanostrip for an hour to no avail. Any advice would be appreciated. Tim Meehan Superfine Group Department of Chemistry University of North Carolina @ ChapelHill