Results 71 to 80 of about 9,659 (210)

Photovoltaic restoration of sight with high visual acuity [PDF]

, 2015
Patients with retinal degeneration lose sight due to the gradual demise of photoreceptors. Electrical stimulation of surviving retinal neurons provides an alternative route for the delivery of visual information.
A Anishchenko, A Santos, Alexander Sher, AM Litke, BW Jones, C Enroth-Cugell, C Harnois, D Boinagrov, D Nanduri, D Petrusca, D Vollrath, Daniel Palanker, E Whitley, E Zrenner, E Zrenner, EA Rossi, EJ Chichilnisky, FC Delori, GA Goetz, GD Field, Georges Goetz, GT Prusky, H Lorach, H Wässle, Henri Lorach, James Harris, JB Demb, JD Loudin, JD Loudin, JD Victor, JD Victor, JW Fransen, JW Pillow, K Mathieson, K Stingl, Keith Mathieson, L Wang, LCL Silveira, MM LaVail, MR Behrend, MS Humayun, MS Humayun, O Strauss, P Dean, Philip Huie, RE Marc, Richard Smith, RJ Jensen, S Joucla, S Martinez-Conde, SH Devries, T Gollisch, Theodore Kamins, WF Heine, Xin Lei, Y Mandel, Y You, Yossi Mandel   +57 more
core   +2 more sources

Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors

Advanced Science, EarlyView.
 . ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton, Tuan Sang Tran, Duc Khanh Tran, Van Thanh Dau, Dzung Viet Dao   +4 more
wiley   +1 more source

Flexible Parylene-based Microelectrode Technology for Intraocular Retinal Prostheses [PDF]

, 2006
We present the first single metal layer flexible microelectrode arrays designed for intraocular implantation that utilize parylene C as their primary structural and insulating material. These electrodes are fabricated as a key component of an intraocular
Ameri, Hossein, Humayun, Mark S., Li, Wen, Ray, Aditi, Rodger, Damien C., Tai, Yu-Chong, Weiland, James D.   +6 more
core   +1 more source

Explainable AI‐Driven Optimization of Electrode Activation Reduces Power Consumption While Preserving Object Recognition in Retinal Prostheses

Advanced Intelligent Systems, EarlyView.
Explainable artificial intelligence (XAI) guides selective electrode activation in retinal prostheses by emphasizing visually informative regions. XAI‐assisted phosphene generation maintains object recognition performance while significantly reducing stimulation power.
Sein Kim, Hamin Shim, Maesoon Im
wiley   +1 more source

Noninvasive imaging-guided ultrasonic neurostimulation with arbitrary 2D patterns and its application for high-quality vision restoration

Nature Communications
Retinal degeneration, a leading cause of irreversible low vision and blindness globally, can be partially addressed by retina prostheses which stimulate remaining neurons in the retina.
Gengxi Lu, Chen Gong, Yizhe Sun, Xuejun Qian, Deepthi S. Rajendran Nair, Runze Li, Yushun Zeng, Jie Ji, Junhang Zhang, Haochen Kang, Laiming Jiang, Jiawen Chen, Chi-Feng Chang, Biju B. Thomas, Mark S. Humayun, Qifa Zhou   +15 more
doaj   +1 more source

Non-fullerene acceptor based photoelectric material for retinal prosthesis

Micro and Nano Systems Letters, 2023
Microelectronic retinal implants can restore a useful level of artificial vision in photoreceptor-damaged retina. Previously commercialized retinal prostheses require transocular connection lines to an external power supply and/or for data transmission ...
Hyunsun Song, Hyeonhee Roh, Jae Young Kim, Byung Chul Lee, Bright Walker, Maesoon Im   +5 more
doaj   +1 more source

Lead‐free inorganic halide perovskite‐based synaptic memory for next generation neuromorphic computing

InfoMat, EarlyView.
Lead‐free inorganic halide perovskites enable resistive switching synaptic devices capable of mimicking biological learning and multimodal information processing, offering a promising platform for next‐generation neuromorphic computing and artificial intelligence hardware. Abstract Inorganic halide perovskites (IHPs) have emerged as promising materials
Subhasish Chanda, Deepak Kumar, Iman Biswas, Manisha Sharma, Youngmin Lee, Sejoon Lee, Sanjeev Kumar Sharma, Aniruddha Mondal   +7 more
wiley   +1 more source

First-in-human trial of a novel suprachoroidal retinal prosthesis. [PDF]

PLoS ONE, 2014
Retinal visual prostheses ("bionic eyes") have the potential to restore vision to blind or profoundly vision-impaired patients. The medical bionic technology used to design, manufacture and implant such prostheses is still in its relative infancy, with ...
Lauren N Ayton, Peter J Blamey, Robyn H Guymer, Chi D Luu, David A X Nayagam, Nicholas C Sinclair, Mohit N Shivdasani, Jonathan Yeoh, Mark F McCombe, Robert J Briggs, Nicholas L Opie, Joel Villalobos, Peter N Dimitrov, Mary Varsamidis, Matthew A Petoe, Chris D McCarthy, Janine G Walker, Nick Barnes, Anthony N Burkitt, Chris E Williams, Robert K Shepherd, Penelope J Allen, Bionic Vision Australia Research Consortium   +22 more
doaj   +1 more source

Microelectromechanical system‐based devices for the diagnosis, treatment, and monitoring of ophthalmic diseases

Interdisciplinary Medicine, EarlyView.
Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng, Xiaoming Huang, Xueyuan Zhang, Yiling Jiang, Xin Zhang, Xueying Zeng, Fengyuan Sun, Peng Liu, Jin Zhou, Zewei Luo, Tong Wu   +10 more
wiley   +1 more source

Modeling and Experimental Validation of a Butterfly-Shaped Wireless Power Transfer in Biomedical Implants

IEEE Access, 2019
Wireless power transfer (WPT) presents a safe and robust method for powering biomedical implants. The range and misalignment tolerance restrictions of the WPT system are the main factors, conducive to the transfer efficiency degradation.
Nam Ha-Van, Chulhun Seo
doaj   +1 more source