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Liquid Memory and the Future of Data Storage

In this paper, we discuss the status and prospects of liquid memory, aiming at ultra-high-density data storage by manipulation of matter dispersed in liquids. We provide a rationale for this disruptive concept and review the state-of-the-art, which currently has a focus on DNA data storage. Also, we propose two new concepts of liquid memories. The first concept that we propose is based on the manipulation of nanoparticles, which we refer to as colloidal memory. The second concept we propose relies on electrochemistry. We refer to it as electrolithic memory and show experimental data to establish a proof of concept.