Virtual cathode display for biomolecular control: Towards the ultimate mixed reality

Abstract

An interactive interface between computational data and real biomolecules, such as a mixed reality technology, can potentially contribute to the next generation of nanomolecular machines and computing. Herein, we develop a virtual cathode display as a molecular-resolution mixed reality interface, which can exhibit electric field phenomena in a dynamical nanopattern. A thin membrane window of SiN is employed as a display surface for the presentation of electric field. Backside projection of a scanning focused electron beam generates nanoscale electric, chemical, and mechanical phenomena on the SiN surface. This projection pattern can be instantly refreshed in response to changes in target biomolecules and living cells in an aqueous solution.