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Journal ArticleDOI

Bioinspired Artificial Eyes: Optic Components, Digital Cameras, and Visual Prostheses

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TLDR
In this paper, a review of recent progress and continued efforts in the research and development of bio-inspired artificial eyes is presented, where the configuration of two representative eyes found in nature: a single-chambered eye and a compound eye.
Abstract
The diverse vision systems found in nature can provide interesting design inspiration for imaging devices, ranging from optical subcomponents to digital cameras and visual prostheses, with more desirable optical characteristics compared to conventional imagers. The advantages of natural vision systems include high visual acuity, wide field of view, wavelength-free imaging, improved aberration correction and depth of field, and high motion sensitivity. Recent advances in soft materials, ultrathin electronics, and deformable optoelectronics have facilitated the realization of novel processes and device designs that mimic biological vision systems. This review highlights recent progress and continued efforts in the research and development of bioinspired artificial eyes. At first, the configuration of two representative eyes found in nature: a single-chambered eye and a compound eye, is explained. Then, advances in bioinspired optic components and image sensors are discussed in terms of materials, optical/mechanical designs, and integration schemes. Subsequently, novel visual prostheses as representative application examples of bioinspired artificial eyes are described.

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Citations
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Journal ArticleDOI

Optoelectronic resistive random access memory for neuromorphic vision sensors.

TL;DR: A simple two-terminal optoelectronic resistive random access memory (ORRAM) synaptic devices for an efficient neuromorphic visual system that exhibit non-volatile optical resistive switching and light-tunable synaptic behaviours.
Journal ArticleDOI

High-performance stretchable conductive nanocomposites: materials, processes, and device applications

TL;DR: The recent advances in stretchable conductors based on the percolation networks of nanoscale conductive fillers in elastomeric media are summarized and various techniques that are used to reduce the contact resistance between the conductive filler materials are highlighted.
Journal ArticleDOI

Flexible and Stretchable Smart Display: Materials, Fabrication, Device Design, and System Integration

TL;DR: In this paper, the development of high performance light-emitting devices with flexible and stretchable form factors is described. But the development is mainly achieved by replacing the rigid materials in the device components with flex...
Journal ArticleDOI

An Oxide Schottky Junction Artificial Optoelectronic Synapse

TL;DR: The photoplasticity of the artificial synapse has been modulated by heterosynaptic means with a sub-1 V external voltage, not only enabling an optoelectronic analog of the mechanical aperture device showing adaptive and stable optical perception capability under different illuminating conditions but also making the artificialsynapse suitable for the mimicry of interest-modulated human visual memories.
Journal ArticleDOI

Bioinspired Electronics for Artificial Sensory Systems

TL;DR: Recent progress in bioinspired electronic sensors shows that the five traditional senses are successfully mimicked using novel electronic components and the performance regarding sensitivity, selectivity, and accuracy have improved to levels that outperform human sensory organs.
References
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Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes

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Journal Article

Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes-``Super-Growth''

TL;DR: Water-stimulated enhanced catalytic activity results in massive growth of superdense and vertically aligned nanotube forests with heights up to 2.5 millimeters that can be easily separated from the catalysts, providing nanotubes material with carbon purity above 99.98%.
Journal ArticleDOI

Liquid-Mediated Dense Integration of Graphene Materials for Compact Capacitive Energy Storage

TL;DR: Taking advantage of chemically converted graphene’s intrinsic microcorrugated two-dimensional configuration and self-assembly behavior, it is shown that such materials can be readily formed by capillary compression of adaptive graphene gel films in the presence of a nonvolatile liquid electrolyte.
Journal ArticleDOI

A graphene-based electrochemical device with thermoresponsive microneedles for diabetes monitoring and therapy

TL;DR: G graphene doped with gold and combined with a gold mesh has improved electrochemical activity over bare graphene, sufficient to form a wearable patch for sweat-based diabetes monitoring and feedback therapy and can be thermally actuated to deliver Metformin and reduce blood glucose levels in diabetic mice.
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