Results 1 to 10 of about 125,997 (158)

Sensor array design of optically pumped magnetometers for accurately estimating source currents

NeuroImage, 2023
An optically pumped magnetometer (OPM) is a new generation of magnetoencephalography (MEG) devices that is small, light, and works at room temperature. Due to these characteristics, OPMs enable flexible and wearable MEG systems.
Yusuke Takeda, Tomohiro Gomi, Ryu Umebayashi, Sadamu Tomita, Keita Suzuki, Nobuo Hiroe, Jiro Saikawa, Tatsuya Munaka, Okito Yamashita   +8 more
doaj   +1 more source

Performance Analysis of Optically Pumped ⁴He Magnetometers vs. Conventional SQUIDs: From Adult to Infant Head Models

Sensors, 2022
Optically pumped magnetometers (OPMs) are new, room-temperature alternatives to superconducting quantum interference devices (SQUIDs) for measuring the brain’s magnetic fields.
Saeed Zahran, Mahdi Mahmoudzadeh, Fabrice Wallois, Nacim Betrouni, Philippe Derambure, Matthieu Le Prado, Agustin Palacios-Laloy, Etienne Labyt   +7 more
doaj   +1 more source

A lightweight magnetically shielded room with active shielding

Scientific Reports, 2022
Magnetically shielded rooms (MSRs) use multiple layers of materials such as MuMetal to screen external magnetic fields that would otherwise interfere with high precision magnetic field measurements such as magnetoencephalography (MEG).
Niall Holmes, Molly Rea, James Chalmers, James Leggett, Lucy J. Edwards, Paul Nell, Stephen Pink, Prashant Patel, Jack Wood, Nick Murby, David Woolger, Eliot Dawson, Christopher Mariani, Tim M. Tierney, Stephanie Mellor, George C. O’Neill, Elena Boto, Ryan M. Hill, Vishal Shah, James Osborne, Rosemarie Pardington, Peter Fierlinger, Gareth R. Barnes, Paul Glover, Matthew J. Brookes, Richard Bowtell   +25 more
doaj   +1 more source

A comparative study on the detection and localization of interictal epileptiform discharges in magnetoencephalography using optically pumped magnetometers versus superconducting quantum interference devices

NeuroImage
Background: Superconducting quantum interference device (SQUID)-based magnetoencephalography (MEG) holds substantial clinical value in epilepsy examination but is limited by the high costs.
Jiechuan Ren, Ming Ding, Yuming Peng, Chang Sun, Chunqing Yang, Shuxian Zhou, Jiayin Tian, Qun Wang, Zhimei Li   +8 more
doaj   +1 more source

Spatial and Frequency Specific Artifact Reduction in Optically Pumped Magnetometer Recordings

Journal of Integrative Neuroscience, 2022
Background: Magnetoencephalography (MEG) based on optically pumped magnetometers (OPMs) opens up new opportunities for brain research. However, OPM recordings are associated with artifacts.
Jing Xiang, Han Tong, Yang Jiang, Maria E. Barnes-Davis   +3 more
doaj   +1 more source

Inter-Trial Consistency in Sensorimotor Cortex During Finger-Tapping Movements

IEEE Transactions on Neural Systems and Rehabilitation Engineering
Optically-pumped magnetometer magnetoencephalography (OPM-MEG) is a new technology to detect neural electrophysiological signals. Inter-trial consistency (ITC) is an important indicator to characterize functional connectivity. It also provides a reliable
Hao Lu, Yong Li, Min Xiang, Yuyu Ma, Yang Gao, Xiaolin Ning   +5 more
doaj   +1 more source

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

Advanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang, Max Shotbolt, Mostafa Abdel‐Mottaleb, Shawnus Chen, Victoria Andre, Jieyuan Tian, Jonathan Shulgach, Max Murphy, Brian Noga, Ping Liang, Darcy Griffin, Douglas Weber, Marta Pardo, Salvador Pane, Sakhrat Khizroev   +14 more
wiley   +1 more source

Exploring the limits of MEG spatial resolution with multipolar expansions

NeuroImage, 2023
The advent of scalp magnetoencephalography (MEG) based on optically pumped magnetometers (OPMs) may represent a step change in the field of human electrophysiology.
Vincent Wens
doaj   +1 more source

An Engineered HR1‐Stem Helix‐HR2 Trimeric Platform for Developing Broad‐Spectrum Coronavirus Vaccines

Advanced Science, EarlyView.
Sun et al. report a self‐assembling trimeric subunit vaccine platform termed RHS, which integrates the JN.1 receptor‐binding domain (RBD) with the heptad repeat 1 (HR1), stem helix (SH), and heptad repeat 2 (HR2) regions. The SARS‐CoV‐2 RHS vaccine elicits variant‐reactive RBD‐specific antibodies and cross‐reactive SH‐specific antibodies against ...
Xikui Sun, Junhao Fan, Xiaolu Xie, Yuting Shi, Xiaoqing Liu, Tiefeng Xu, Sidi Yang, Keda Shi, Chengshu Xie, Shixiong Li, Siwen Chen, Ruoxi Cai, Ping He, Yuzhen Ye, Tao Chen, Xiancai Ma, Chunmei Li, Jingyou Yu, Deyin Guo   +18 more
wiley   +1 more source

Atomically Dispersed Fe‐Modified SnS for Sn‐Centered Peroxymonosulfate Activation Toward Acetaminophen Degradation

Advanced Science, EarlyView.
Atomically dispersed Fe regulates the local electronic environment and surface properties of SnS, while PMS preferentially coordinates to Sn through Sn–O interaction. Fe incorporation further enhances the Sn–OPMS interfacial interaction, facilitating Sn‐centered PMS activation and the generation of SO4•−/•OH for APAP degradation, thereby clarifying the
Shuhui Liu, Yantao Wang, Ya Liu, Jingkai Lin, Shaobin Wang, Wenjie Tian   +5 more
wiley   +1 more source