Some mosquitoes can ignore DEET

Steven Lenhert now at The Florida State University, working with colleagues at Germany's University of Muenster and the Karlsruhe Institute of Technology, have extended so-called dip-pen nanolithography to use an atomic force microscope to lay down precise patterns of biofunctional lipid multilayers of defined height between 5 and 100 nanometres. The multilayers applied to a pre-prepared surface lead to readily characterized nano metamaterials with a wide range of applications in lab-on-a-chip science, including the possibility of developing consumer diagnostics devices that could be built into smart phones.