CdSe quantum dots photoelectric memristors for simulating biological visual system behavior.

This article focuses on the development of a silk fibroin (SF) and cadmium selenide (CdSe) quantum dot-based memristor device designed to simulate biological visual and synaptic pain responses. The device exhibits light-responsive behavior and mimics synaptic functions such as conductance modulation, spike timing-dependent plasticity, and paired-pulse facilitation, while also replicating pain-like inhibitory responses under excessive electrical stimulation. By integrating these memristors with circuits based on the Leaky Integrate-and-Fire (LIF) neuron model, the researchers created an artificial visual perception system that simulates human eye responses to varying light intensities, including visual degradation under intense light stimuli. This work demonstrates the potential of SF/CdSe quantum dot memristors for applications in bio-inspired neuromorphic computing, pain perception simulation, and visual information processing.