Power supply for a smart contact lens 1

In recent times, there has been a notable surge in the popularity of smart contact lenses. Regrettably, the matter of power supply for these advanced lenses has been somewhat neglected, consequently raising concerns about potential ocular harm in the event of an accidental rupture or leakage. As a r...

Full description

Saved in:
Bibliographic Details
Main Author: Zhang, Beibei
Other Authors: Lee Seok Woo
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
Subjects:
Online Access:https://hdl.handle.net/10356/172618
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-172618
record_format dspace
spelling sg-ntu-dr.10356-1726182023-12-22T15:44:13Z Power supply for a smart contact lens 1 Zhang, Beibei Lee Seok Woo School of Electrical and Electronic Engineering sw.lee@ntu.edu.sg Engineering::Electrical and electronic engineering In recent times, there has been a notable surge in the popularity of smart contact lenses. Regrettably, the matter of power supply for these advanced lenses has been somewhat neglected, consequently raising concerns about potential ocular harm in the event of an accidental rupture or leakage. As a resolution, our research endeavors focus on the development and assessment of a novel battery type, engineered to provide a secure and user-friendly energy source for smart contact lenses, even permitting surgical procedures in the presence of tears. To address this, we introduce a flexible and biocompatible aqueous battery tailored specifically for smart contact lenses. This innovative design incorporates a series of Prussian blue nanoparticle-shaped flexible electrodes serving as cathodes and anodes, enabling the power supply to operate optimally with sodium ions (Na+) and potassium ions (K+) without necessitating supplementary encapsulation. Moreover, this battery possesses sufficient capacity to sustain the operation of microprocessors in low-power modes, while its flexible composition maintains a consistent charging and discharging performance. The anode of the battery was composed of silver (Ag) and copper hexacyanoferrate (CuHCFe), meticulously chosen for their specific properties conducive to efficient power generation and utilization. The cathode, on the other hand, was seamlessly embedded within a UV light-polymerized hydrogel that forms the soft contact lens, featuring an intercalated lens cleaning paper that serves as an impermeable barrier for ions. Our experimentation protocol included cyclic voltammetry (CV) and galvanostatic cycling (GCPL) electrochemical assessments conducted in a simulated tear fluid environment using 1M sodium chloride. Additionally, to validate the operational efficacy of the battery, we utilized contact lens cleaning fluid, ensuring a secure power supply for forthcoming smart contact lenses while mitigating the potential risks associated with battery leaks or impairment. Bachelor of Engineering (Electrical and Electronic Engineering) 2023-12-18T01:26:46Z 2023-12-18T01:26:46Z 2023 Final Year Project (FYP) Zhang, B. (2023). Power supply for a smart contact lens 1. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/172618 https://hdl.handle.net/10356/172618 en P2017-221 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
spellingShingle Engineering::Electrical and electronic engineering
Zhang, Beibei
Power supply for a smart contact lens 1
description In recent times, there has been a notable surge in the popularity of smart contact lenses. Regrettably, the matter of power supply for these advanced lenses has been somewhat neglected, consequently raising concerns about potential ocular harm in the event of an accidental rupture or leakage. As a resolution, our research endeavors focus on the development and assessment of a novel battery type, engineered to provide a secure and user-friendly energy source for smart contact lenses, even permitting surgical procedures in the presence of tears. To address this, we introduce a flexible and biocompatible aqueous battery tailored specifically for smart contact lenses. This innovative design incorporates a series of Prussian blue nanoparticle-shaped flexible electrodes serving as cathodes and anodes, enabling the power supply to operate optimally with sodium ions (Na+) and potassium ions (K+) without necessitating supplementary encapsulation. Moreover, this battery possesses sufficient capacity to sustain the operation of microprocessors in low-power modes, while its flexible composition maintains a consistent charging and discharging performance. The anode of the battery was composed of silver (Ag) and copper hexacyanoferrate (CuHCFe), meticulously chosen for their specific properties conducive to efficient power generation and utilization. The cathode, on the other hand, was seamlessly embedded within a UV light-polymerized hydrogel that forms the soft contact lens, featuring an intercalated lens cleaning paper that serves as an impermeable barrier for ions. Our experimentation protocol included cyclic voltammetry (CV) and galvanostatic cycling (GCPL) electrochemical assessments conducted in a simulated tear fluid environment using 1M sodium chloride. Additionally, to validate the operational efficacy of the battery, we utilized contact lens cleaning fluid, ensuring a secure power supply for forthcoming smart contact lenses while mitigating the potential risks associated with battery leaks or impairment.
author2 Lee Seok Woo
author_facet Lee Seok Woo
Zhang, Beibei
format Final Year Project
author Zhang, Beibei
author_sort Zhang, Beibei
title Power supply for a smart contact lens 1
title_short Power supply for a smart contact lens 1
title_full Power supply for a smart contact lens 1
title_fullStr Power supply for a smart contact lens 1
title_full_unstemmed Power supply for a smart contact lens 1
title_sort power supply for a smart contact lens 1
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/172618
_version_ 1787136824645255168