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- W4387308145 abstract "Abstract Neuromorphic electronics, inspired by the functions of neurons, have the potential to enable biomimetic communication with cells. Such systems require operation in aqueous environments, generation of sufficient levels of ionic currents for neurostimulation, and plasticity. However, their implementation requires a combination of separate devices, such as sensors, organic synaptic transistors, and stimulation electrodes. Here, we present a compact neuromorphic synapse that combines photodetection, memory, and neurostimulation functionalities all-in-one. The artificial photoreception is facilitated by a photovoltaic device based on cell-interfacing InP/ZnS quantum dots, which induces photo-faradaic charge-transfer mediated plasticity. The device sends excitatory post-synaptic currents exhibiting paired-pulse facilitation and post-tetanic potentiation to the hippocampal neurons via the biohybrid synapse. The electrophysiological recordings indicate modulation of the probability of action potential firing due to biomimetic temporal summation of excitatory post-synaptic currents. Our results pave the way for the development of novel bioinspired neuroprosthetics and soft robotics and highlight the potential of quantum dots for achieving versatile neuromorphic functionality in aqueous environments." @default.
- W4387308145 created "2023-10-04" @default.
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- W4387308145 date "2023-10-02" @default.
- W4387308145 modified "2023-10-10" @default.
- W4387308145 title "A Retina-inspired Optoelectronic Synapse Using Quantum Dots for Neuromorphic Photostimulation of Neurons" @default.
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- W4387308145 doi "https://doi.org/10.1101/2023.09.30.560306" @default.
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