DNA aerogels and DNA-wrapped CNT aerogels for neuromorphic applications.

Nucleic acids are programmable materials that can self-assemble into defined or stochastic three-dimensional network architectures. Various attributes of self-assembled, cross-linked Deoxyribonucleic acid (DNA) hydrogels have recently been investigated, including their mechanical properties and potential biomedical functions. Herein, for the first time, we describe the successful construction of pure DNA aerogels and DNA-wrapped carbon nanotube (CNT) composite (DNA-CNT) aerogels via a single-step freeze-drying of the respective hydrogels.

Modeling and characterization of stochastic resistive switching in single AgS nanowires.

Chalcogenide resistive switches (RS), such as AgS, change resistance due to the growth of metallic filaments between electrodes along the electric field gradient. Therefore, they are candidates for neuromorphic and volatile memory applications. This work analyzed the RS of individual AgS nanowires (NWs) and extended the basic RS model to reproduce experimental observations.