Online dynamical learning and sequence memory with neuromorphic nanowire networks.

Nanowire Networks (NWNs) belong to an emerging class of neuromorphic systems that exploit the unique physical properties of nanostructured materials. In addition to their neural network-like physical structure, NWNs also exhibit resistive memory switching in response to electrical inputs due to synapse-like changes in conductance at nanowire-nanowire cross-point junctions. Previous studies have demonstrated how the neuromorphic dynamics generated by NWNs can be harnessed for temporal learning tasks.

Metal doped polyaniline as neuromorphic circuit elements for in-materia computing.

Polyaniline-based atomic switches are material building blocks whose nanoscale structure and resultant neuromorphic character provide a new physical substrate for the development next-generation, nanoarchitectonic-enabled computing systems. Metal ion-doped devices consisting of a Ag/metal ion doped polyaniline/Pt sandwich structure were fabricated using an wet process. The devices exhibited repeatable resistive switching between high (ON) and low (OFF) conductance states in both Ag and Cu ion-doped devices.

Enhanced synergetic antibacterial activity by a reduce graphene oxide/Ag nanocomposite through the photothermal effect.

Multidrug-resistant (MDR) bacterial strains have led to notable heathy threats to human beings. The demand for the development of effective antibacterial materials is increasing. Silver nanoparticles (AgNPs) and graphene-based nanomaterials are two major types of nanomaterials that are studied to inhibit and/or kill bacteria.

Size exclusion chromatography of lignin: The mechanistic aspects and elimination of undesired secondary interactions.

Characterization of lignin and its degradation products, more specifically determination of their molecular weight (MW) distribution, is essential for assessment and applications of these potentially renewable phenolics. Several representative gel filtration and gel permeation systems were evaluated in this work focusing on understanding of undesired secondary non-SEC interactions while utilizing four sets of commercially available polymeric standards as well as low-MW lignin model compounds including diarene standards synthesized in-house. The gel permeation column with a nonpolar highly cross-linked porous polystyrene/divinylbenzene-based stationary phase provided the most effective separation by MW for both low and high MW model compounds.