An implantable remote-powered optoelectronic MEMS device for in vivo spectral analysis and biochemical tests

Nicolau, Dan V.; Livingston, Peter; Jahshan, David; Evans, R.J.

doi:10.1117/12.541139

Cited by 3 publications

(2 citation statements)

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“…Manufacturing MEMS colour sensors would not pose challenging problems with present technology. In a recent paper [3], we proposed an optoelectronic MEMS implantable device for spectral analysis of tissue and biological fluids. There is no reason why such devices could not be manufactured in array-like structures, thus creating a "field of view".…”

Section: Resultsmentioning

confidence: 99%

“…In addition, it is not difficult to miniaturise colour sensors. Efforts to build small such devices for aiding colour or vision impaired people, aside from the immediate benefit associated with being able to perform certain routine tasks, also open avenues for building intraocular implants for alleviating blindness and other conditions and spectral analysis devices [3].…”

Section: Introductionmentioning

confidence: 99%

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Toward the development of portable miniature intelligent electronic color identification devices

et al. 2004

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The identification and differentiation of colours is a relatively problematic task for colour -impaired and partially visionimpaired persons and an impossible one for the completely blind. In various contexts, this leads to a loss of independence or an increased risk of harm. The identification of colour using optoelectronic devices, on the other hand, can be done precisely and inexpensively. Additionally, breakthroughs in miniaturising and integrating colour sensors into biological systems may lead to significant advances in electronic implants for alleviating blindness. Here we present a functional handheld device developed for the identification of colour, intended for use by the vision -impaired. We discuss the features and limitations of the device and describe in detail one target application -the identification of different banknote denominations by the blind.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toward the development of portable miniature intelligent electronic color identification devices

et al. 2004

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Critical Review of Recent Advancement in Metamaterial Design for Wireless Power Transfer

Adepoju

Bhattacharya

Sanyaolu³

et al. 2022

IEEE Access

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With increasing penetration of wireless charging technologies comes an ever-rising demand for wireless power transfer (WPT) structures that demonstrate high power transfer and power transfer efficiency (PTE), especially over wide transfer distance. The concern with reliability in adopting wireless charging technologies in consumer and industrial applications (including mobile chargers and dynamic wireless charging of electric vehicles, EVs) stems from fluctuating output power and low power transfer efficiency (PTE). Moreover, the inherently high resonant frequency of existing metamaterial (MM)-based WPT designs imposes a high switching stress on power semiconductors and passive components, resulting in high power dissipation, especially in high power applications. This manuscript presents a critical survey of recent studies and developments in MM-based WPT systems. First, the fundamental concepts and classification of WPT technologies based on magnetic resonant coupling (MRC), inductive coupling etc. are discussed. Going forward, key MM design considerations, including resonance operating frequencies, effective permittivity ( r ), effective permeability (µ r ), numerical modeling, equivalent circuit representations, and 3D fabrication technologies are widely analyzed and critiqued. Additionally, the performance enhancing effect of integrating different MM designs with existing WPT systems are explicitly discussed. Finally, the technical challenges associated with the resonant operating frequencies of MM, miniaturization of MM design footprint, and 3D prototyping are investigated while also presenting potential solutions.INDEX TERMS Wireless power transfer (WPT), metamaterial (MM), power transfer efficiency (PTE), resonant frequency, transmit power, effective permeability, electric vehicle (EV).

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A Review on the Recent Development in the Design and Optimization of Magnetic Coupling Mechanism of Wireless Power Transmission

Dai

Wang

Zhou

et al. 2020

IEEE Systems Journal

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An implantable remote-powered optoelectronic MEMS device for in vivo spectral analysis and biochemical tests

Cited by 3 publications

References 0 publications

Toward the development of portable miniature intelligent electronic color identification devices

Toward the development of portable miniature intelligent electronic color identification devices

Critical Review of Recent Advancement in Metamaterial Design for Wireless Power Transfer

A Review on the Recent Development in the Design and Optimization of Magnetic Coupling Mechanism of Wireless Power Transmission

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