Article
Chemistry, Inorganic & Nuclear
Faxue Lu, Yajun Ji, Dong Shi, Junnan Yao, Pengcheng Zhang, Shixiong Zhang
Summary: By utilizing a simple electric field-induced anion exchange process, a novel nanostructured CuCo2Sx(OH)(y) heterostructure was synthesized, which exhibited high area specific capacitance and excellent capacitive performance.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Automation & Control Systems
Li Xinwei, Xiao Yixuan, He Chen, Hu Bingshan, Yu Hongliu
Summary: The article introduces a gait simulation and evaluation system for hip disarticulation prostheses (HDPs) testing, which uses a simulation robot to test HDPs, improving testing efficiency and safety.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Sumaira Manzoor, H. A. Alburaih, Mehar Un Nisa, Salma Aman, Muhammad Abdullah, Abdul Ghafoor Abid
Summary: In this study, a CuS2/NiFe2O4 nanostructure was fabricated using a one-step hydrothermal method. The CuS2/NiFe2O4 nanocomposite exhibited higher capacitance efficiency than individual CuS2 and NiFe2O4 materials, owing to the synergistic effect. The nanocomposite electrode showed a specific capacitance of 1329.54 F g(-1) at 1.0 A g(-1), and retained over 96.21% of its capacitance even after 5000 cycles. This hybrid material has potential applications in water splitting catalysts, Na-ion hybrid capacitors, and other energy storage and conversion devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Heehun Sung, Yunhui Jo, Geon Oh, Yongha Gi, Hyunwoo Kim, Sangmin Park, Jaehyeon Seo, Myonggeun Yoon
Summary: This study evaluated methods of constructing electrode arrays to reduce the risk of skin burns during TTFields therapy, and found that inserting an insulator at the edge of each electrode was the most effective method.
Article
Chemistry, Multidisciplinary
Abdul Rehman Akbar, Gangqiang Peng, Yongyi Li, Rashid Iqbal, Adil Saleem, Guohong Wang, Abdul Sammed Khan, Mumtaz Ali, Muhammad Tahir, Mohammed A. Assiri, Ghaffar Ali, Fude Liu
Summary: The fabrication of low-cost, effective, and highly integrated nanostructured materials for high-energy-density supercapacitors is highly desired. In this study, an activated carbon cloth (ACC) is designed as the functional scaffold for supercapacitors and modified with various nanomaterials. The resulting structured core-shell heterostructure ACC@NiCo@NiOOH@CoMoO4 electrode exhibits exceptional specific areal capacitance and cycling stability. Moreover, this electrode is developed into an asymmetric supercapacitor, demonstrating excellent areal capacitance, energy density, and power density with a high cycling life.
Review
Chemistry, Physical
Stanisa Raspopovic, Giacomo Valle, Francesco Maria Petrini
Summary: Commercial prosthetic devices currently lack natural sensory feedback, leading to unphysiological movement and health issues for users. Restoring natural sensory feedback to amputees is a clinical need that has not been met. Various neurotechnological approaches have been proposed for developing optimal sensory feedback restoration devices for arm and leg amputees.
Article
Chemistry, Multidisciplinary
Zijie Guo, Wutao Wei, Juan Shi, Pengpeng Wang, Zisen Ye, Liwei Mi
Summary: Without adding any additional solvent, the crystal water in the reactant provides a liquid environment directly for the reaction, allowing the whole reaction to be carried out safely and efficiently in a less-liquid reaction system. Furthermore, NiS2 in a cotton-like form was synthesized under the spatial effect of NaCl solution in a confined space. The fabricated material has a tight structure and abundant active sites, which promote rapid charge transport. This study provides a general strategy for preparing metal sulfides and suggests a new direction for improving electrochemical performance in less-liquid reaction systems without additional solvents.
Article
Chemistry, Multidisciplinary
Ruihua Dong, Lulu Wang, Chen Hang, Zhen Chen, Xiaoyan Liu, Leni Zhong, Jie Qi, Yuqing Huang, Shaoqin Liu, Liping Wang, Yi Lu, Xingyu Jiang
Summary: A new fabrication strategy for highly stretchable neural electrode arrays based on screen printing of liquid metal conductors onto polydimethylsiloxane substrates was developed. The electrode arrays show a resolution of 50 μm and high biocompatibility, retaining stable electrical properties and mechanical performance under significant strain.
Article
Engineering, Chemical
Mingxing Shi, Hua Qiang, Chunyu Chen, Zahira Bano, Fengyun Wang, Mingzhu Xia, Wu Lei
Summary: Research shows that utilizing a three-electrode CDI system with flow-through and flow-by electrodes can achieve higher salt adsorption capacity and faster salt adsorption rate. Additionally, this system has higher charge efficiency, lower energy consumption, and shorter desorption time.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Kaiqiang Zhang, Luoya Wang, Changlong Ma, Zijie Yuan, Chao Wu, Jilei Ye, Yuping Wu
Summary: This study provides a comprehensive review of the advancements, challenges, and prospects of aqueous batteries, focusing on energy density compensation and high-energy battery designs. The researchers propose a dual-compatibility battery configuration perspective to achieve high cell-level energy densities.
Article
Energy & Fuels
Dong Liu, Qi Zhang, Haiyan Pei, Wei Pan, Yingliang Liu, Shengang Xu, Shaokui Cao
Summary: A novel PET/CuS/PPy composite electrode was developed for portable flexible solid-state supercapacitors (FSSC), exhibiting high specific capacitance and good cyclic stability, attributed to the dual functions of high electrical conductivity and large capacitance of CuS. The FSSC demonstrated superior specific capacitance and energy density, suitable for various portable devices, with promising practical applications.
Review
Engineering, Biomedical
Han-Sol Lee, Kyeongho Eom, Minju Park, Seung-Beom Ku, Kwonhong Lee, Hyung-Min Lee
Summary: Implantable medical devices for monitoring brain activity have become popular due to their ability to provide better information compared to non-invasive methods. Integrated circuits have been developed to ensure high efficiency and low power operation of these invasive neural recording systems. This paper provides an overview of neural signals, neural recording architectures, and techniques for optimizing the system.
BIOMEDICAL ENGINEERING LETTERS
(2022)
Article
Multidisciplinary Sciences
Simeon Christian Daeschler, Marie-Helene Bourget, Dorsa Derakhshan, Vasudev Sharma, Stoyan Ivaylov Asenov, Tessa Gordon, Julien Cohen-Adad, Gregory Howard Borschel
Summary: This study aimed to develop and validate a deep learning model for automated segmentation and histomorphometry of myelinated peripheral nerve fibers from light microscopic images. The model achieved high accuracy for automated segmentation and morphometry, outperforming manual methods in terms of consistency and analysis time reduction.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Biomedical
Zhengtuo Zhao, Hanlin Zhu, Xue Li, Liuyang Sun, Fei He, Jason E. Chung, Daniel F. Liu, Loren Frank, Lan Luan, Chong Xie
Summary: Penetrating flexible electrode arrays enable long-term stable electrophysiological recordings and inference of patterns of neural information flow.
NATURE BIOMEDICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Rongrong Liu, Xin Gao, Yanqiu Xie, Qinhan Liu, Kai Zhang, Yijia Sun, He Bai, Fei Yao, Hongyan Yue
Summary: In this study, flower-like NiCoZn-carbonate hydroxide hollow nanospheres were prepared as electrode materials, showing improved specific capacitance and cycling stability due to their unique structure and morphology.
Article
Materials Science, Biomaterials
Md. . Kabir Uddin Sikder, Wei Tong, Hitesh Pingle, Peter Kingshott, Karina Needham, Mohit N. Shivdasani, James B. Fallon, Peter Seligman, Michael R. Ibbotson, Steven Prawer, David J. Garrett
Summary: Coating electrodes with biomolecules like extracellular matrix proteins can suppress adverse biological responses and maintain optimal electrochemical performance for neural stimulation. The method of covalently coupling biomolecules to diamond electrodes enhances cell attachment densities and neurite outgrowth, showing promise in reducing inflammatory responses in vivo.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Engineering, Biomedical
Robert K. Shepherd, Paul M. Carter, Ashley N. Dalrymple, Ya Lang Enke, Andrew K. Wise, Trung Nguyen, James Firth, Alex Thompson, James B. Fallon
Summary: Long-term electrical stimulation of platinum electrodes at charge densities well above existing safety limits does not adversely affect auditory nerve population or reduce neural function. Despite increased tissue response and platinum accumulation, there was no negative impact on neural function.
JOURNAL OF NEURAL ENGINEERING
(2021)
Article
Ophthalmology
Daniel Al Mouiee, Erik Meijering, Michael Kalloniatis, Lisa Nivison-Smith, Richard A. Williams, David A. X. Nayagam, Thomas C. Spencer, Chi D. Luu, Ceara McGowan, Stephanie B. Epp, Mohit N. Shivdasani
Summary: The study explores the use of CNN in classifying retinal degeneration, showing high agreement between the model and observers, with image context restriction affecting model performance.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2021)
Article
Ophthalmology
Matthew A. Petoe, Samuel A. Titchener, Maria Kolic, William G. Kentler, Carla J. Abbott, David A. X. Nayagam, Elizabeth K. Baglin, Jessica Kvansakul, Nick Barnes, Janine G. Walker, Stephanie B. Epp, Kiera A. Young, Lauren N. Ayton, Chi D. Luu, Penelope J. Allen
Summary: The study investigated the safety and efficacy of a second-generation suprachoroidal retinal prosthesis in four subjects with advanced retinitis pigmentosa. The results showed significant improvements in functional vision and quality of life for the subjects after device activation, indicating the potential clinical usefulness of this prosthesis.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Biomedical
Xiaoyu Song, Shirong Qiu, Mohit N. Shivdasani, Feng Zhou, Zhengyang Liu, Saidong Ma, Xinyu Chai, Yao Chen, Xuan Cai, Tianruo Guo, Liming Li
Summary: A computational model was developed to assess neural activity in different eccentricities within the human retina. Simulations showed that midget and parasol retinal ganglion cells (RGCs) have region-specific excitation differences under preferred electrode sizes. Smaller electrodes exhibit a higher range of controllable stimulation parameters. Fine-tuning the stimulation amplitude and electrode size can control retinal outputs.
JOURNAL OF NEURAL ENGINEERING
(2022)
Article
Physiology
Sophie C. Payne, Glenn Ward, James B. Fallon, Tomoko Hyakumura, Johannes B. Prins, Sofianos Andrikopoulos, Richard J. MacIsaac, Joel Villalobos
Summary: Vagus nerve stimulation has shown promise as a treatment for type 2 diabetes. This study demonstrated that stimulation of the abdominal vagus nerve in metabolically compromised rats can effectively decrease glycemia without causing damage to the nerve tissue. The findings suggest that further development of this therapy could lead to a novel treatment for type 2 diabetes.
PHYSIOLOGICAL REPORTS
(2022)
Article
Ophthalmology
Samuel A. Titchener, David A. X. Nayagam, Jessica Kvansakul, Maria Kolic, Elizabeth K. Baglin, Carla J. Abbott, Myra B. McGuinness, Lauren N. Ayton, Chi D. Luu, Steven Greenstein, William G. Kentler, Mohit N. Shivdasani, Penelope J. Allen, Matthew A. Petoe
Summary: This study reports the long-term observations of the electrode-tissue interface and perceptual stability in humans after chronic stimulation with a 44-channel suprachoroidal retinal implant. The results showed stable electrode impedances, small individual changes in perceptual electrical thresholds, and no clinically significant increase in electrode-retina distances after a period of settling after surgery.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Biomedical
Sam E. John, Sam Donegan, Theodore C. Scordas, Weijie Qi, Prayshita Sharma, Kishan Liyanage, Stefan Wilson, Ian Birchall, Andrew Ooi, Thomas J. Oxley, Clive N. May, David B. Grayden, Nicholas L. Opie
Summary: This study assessed vascular remodeling after the placement of an endovascular neural interface (ENI) in sheep's superior sagittal sinus (SSS) and evaluated the efficacy of neural recording using the ENI. The results showed accumulation of extracellular matrix material and narrowing of the blood vessel lumen due to the implanted ENI, but without occlusion of blood flow. The ENI was able to successfully record brain activity.
JOURNAL OF NEURAL ENGINEERING
(2022)
Article
Audiology & Speech-Language Pathology
Andrew K. Wise, Patrick Atkinson, James B. Fallon
Summary: There is a growing trend to provide cochlear implants for individuals with residual hearing. However, a significant problem is the loss of residual hearing following implantation. This study investigates the potential cause of this loss and finds that hair cell overstimulation is not a significant driver of the loss.
Article
Engineering, Biomedical
Keith Ly, Tianruo Guo, David Tsai, Madhuvanthi Muralidharan, Mohit N. Shivdasani, Nigel H. Lovell, Socrates Dokos
Summary: A biophysically detailed neuronal network model of the retina was developed and validated, showing characteristic oscillatory patterns in response to photoreceptor degeneration. The model can guide future stimulation strategies for retinal prostheses and aid in understanding retinal changes with progressive degeneration.
JOURNAL OF NEURAL ENGINEERING
(2022)
Article
Engineering, Biomedical
Elise A. Ajay, Ella P. Trang, Alexander C. Thompson, Andrew K. Wise, David B. Grayden, James B. Fallon, Rachael T. Richardson
Summary: This study compared the temporal precision of auditory nerve responses to optogenetic, electrical, and combined stimulation in acutely and chronically deafened animals. The results showed that electrical stimulation had significantly greater temporal precision than optogenetic stimulation. Chronically deafened animals exhibited poorer temporal fidelity but improved temporal precision with optogenetic and hybrid stimulation compared to acutely deafened animals.
JOURNAL OF NEURAL ENGINEERING
(2023)
Article
Anatomy & Morphology
Hallur Reynisson, Michael Kalloniatis, Erica L. Fletcher, Mohit N. Shivdasani, Lisa Nivison-Smith
Summary: A hallmark of photoreceptor degenerations is progressive, aberrant remodeling of the surviving retinal neurons and glia following photoreceptor loss. This study assessed the relationship between Muller cell dysfunction and retinal neuron subpopulations in late-stage retinal degeneration, finding that glia-neuronal alterations play a significant role. These findings highlight the importance of further research and intervention development in this field.
FRONTIERS IN NEUROANATOMY
(2023)
Article
Ophthalmology
Samuel A. Titchener, Jeroen Goossens, Jessica Kvansakul, David A. X. Nayagam, Maria Kolic, Elizabeth K. Baglin, Lauren N. Ayton, Carla J. Abbott, Chi D. Luu, Nick Barnes, William G. Kentler, Mohit N. Shivdasani, Penelope J. Allen, Matthew A. Petoe
Summary: Gaze-based phosphene mapping is a viable alternative to conventional finger-based mapping, but may not be suitable for all subjects.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Sophie C. Payne, Peregrine B. Osborne, Alex Thompson, Calvin D. Eiber, Janet R. Keast, James B. Fallon
Summary: This study presents a minimally invasive recording and analysis technology that can extract low-to-negative signal to noise ratio neural activity from fragile peripheral visceral nerves. The technology was tested and validated using a rat model, showing its potential in developing closed-loop technology for bladder control.
APL BIOENGINEERING
(2023)
Proceedings Paper
Engineering, Biomedical
Madhuvanthi Muralidharan, Tianruo Guo, Mohit N. Shivdasani, David Tsai, Shelley Fried, Morven Cameron, John W. Morley, Socrates Dokos, Nigel H. Lovell
42ND ANNUAL INTERNATIONAL CONFERENCES OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY: ENABLING INNOVATIVE TECHNOLOGIES FOR GLOBAL HEALTHCARE EMBC'20
(2020)