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In this paper we propose a new hardware architecture for the implementation of an artificial neuron based on organic memristive elements and operational amplifiers. This architecture is proposed as a possible solution for the integration and deployment of the cluster based bio- realistic simulation of a mammalian brain into a robotic system. Originally, this simulation has been developed through a...
We report results regarding the possibility of driving an organic memristive device as a transistor, so applying a modulatory gate voltage. Even if transistors and organic memristive device have different working principles, they share the same electrode structure (e.g. gate, source and drain electrode). For memristive standard operational mode, the gate electrode must be used just as reference electrode,...
In this present work, initial results of the growing of neuronal like cells on the memristive substrate are going to be presented. SH-SY5Y line cells where chosen for this test, thanks to their features similar to neurons and they were grown on Polyaniline (PANI) multilayer. PANI is a well known conductive polymer and it's also the active layer of a special class of device, the organic memristors...
The paper is dedicated to the hardware realization neuromorphic networks mimicking some properties of the nervous system. In particular, we will consider memristive devices-based logic gates with memory, elementary perceptron, and deterministic and stochastic networks, where memristive devices are used as electronic analogs of biological synapses.
The main charter of this work is the organism Physarum polycephalum, in particular plasmodium, Physarum's vegetative phase. During this latter form, the organism is more active and moves searching for food. Plasmodium behaves like a giant amoeba, and more interestingly, its way of foraging can be interpreted as a computation. By comparing the reaction of this organism with attractors and repellents,...
The paper reports the temporal dependence of the pore formation in polymeric capsules. The results are important for the drug design and programming of biochemical computers.
The comparison of properties of organic memristive devices with active channels fabricated by Langmuir-Blodgett and Layer-by-Layer techniques is presented. Advantages and drawbacks of each method are discussed.
A memristor is often identified by showing its distinctive pinched hysteresis curve and testing for the effect of frequency. The hysteresis size should relate to frequency and shrink to zero as the frequency approaches infinity. Although mathematically understood, the material causes for this are not well known. The d.c. response of the memristor is a decaying curve with its own timescale. We show...
Organic memristive device is an element specially constructed for mimicking synapse properties. Its working principle is based on the significant difference of conducting polymers properties (polyaniline, in particular) when they are in the reduced and oxidized states. Initially, it will be described the architecture and properties of organic memristor. Then, the logic elements with memory will be...
We discuss here a construction and properties of organic memristive device - artificial synapse mimicking system. Second part of the paper describe deterministic and statistical adaptive networks showing learning capabilities.
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