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Supported lipid bilayers (SLBs) are ideal platforms for the study of membrane proteins and function. Assembly of functional SLBs in an array format would lead to a breakthrough in high-throughput screening of membrane-associated processes, e.g., drugs binding to transmembrane proteins. We report the formation of SLBs from the rupture of anionic vesicles in the presence of Ca2+ions on ITO-coated surfaces and characterise the assembly and SLB properties. Furthermore, the formation, manipulation and regeneration of SLBs adsorbed on ITO microelectrode array spots using an electric potential switch are demonstrated. This platform enables addressable assembly and the study of electrochemically mediated membrane processes in a microarray format which can be regenerated in situ. [ABSTRACT FROM AUTHOR]

Here we present a protocol for generating Lissajous curves with a trapped ion by engineering Rashba- and the Dresselhaus-type spin-orbit (SO) interactions in a Paul trap. The unique anisotropic Rashba , and Dresselhaus , couplings afforded by our setup also enable us to obtain an “unusual” Zitterbewegung, i.e., the semiconductor analog of the relativistic trembling motion of electrons, with cycloidal trajectories in the absence of magnetic fields. We have also introduced bounded SO interactions, confined to an upper-bound vibrational subspace of the Fock states, as an additional mechanism to manipulate the Lissajous motion of the trapped ion. We have also accounted for dissipative effects on the vibrational degrees of freedom of the ion and find that the Lissajous trajectories are still robust and well defined for realistic parameters. [ABSTRACT FROM AUTHOR]