[HTML][HTML] Integrated Sensors for Electric Stimulation of Stem Cells: A Review on MicroElectrode Arrays (MEAs) Based Systems

A Algarín, D Martín, P Daza, G Huertas… - Sensors and Actuators …, 2024 - Elsevier
This paper provides an update on the sensors and actuators involved in Stem Cells (SC)
differentiation processes based on electric stimulation (STI), including both current and …

A multi-channel neural recording system with neural spike scan and adaptive electrode selection for high-density neural interface

HS Lee, K Eom, M Park, SB Ku, K Lee… - … on Circuits and …, 2023 - ieeexplore.ieee.org
There is an increasing demand for real-time neural signal monitoring from a large number of
electrodes to provide adequate spatial and temporal resolution for high-density brain neural …

A load-insensitive hybrid LSK back telemetry system with slope-based demodulation for inductively powered biomedical devices

HS Lee, J Ahn, M Kang, HM Lee - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper presents a hybrid load-shift keying (LSK) modulation for a load-insensitive back
telemetry system to realize near-constant voltage changes in a primary coil (L 1) against a …

A low-stimulus-scattering pixel-sharing sub-retinal prosthesis SoC with time-based photodiode sensing and per-pixel dynamic voltage scaling

K Eom, M Park, HS Lee, SB Ku, N Kim… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article proposes a 505-channel pixel-sharing sub-retinal prosthesis (PSRP) system-on-
chip (SoC) that aims to effectively restore patients' visual acuity using the modular …

A 9V-Tolerant 71.4%-Efficiency Stacked-Switched-Capacitor Stimulation System with Level-Adaptive Switching Control and Rapid Stimulus-Synchronized Charge …

M Park, K Eom, HS Lee, SB Ku… - 2023 IEEE Custom …, 2023 - ieeexplore.ieee.org
A neural stimulation system-on-chip (SoC) plays an essential role to modulate neural
activities, while requiring effective schemes to inject a desired amount of charge efficiently …

A 13.56-MHz 93.5%-Efficiency Optimal On/Off Timing Tracking Active Rectifier with Digital Feedback-Based Adaptive Delay Control

J Ahn, HS Lee, K Eom, W Jung… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This paper presents an adaptive active rectifier with digital feedback delay controllers
(DFDC) which quickly tracks optimal on/off timing against input voltage and load variations …

Development of Ocular Muscle Stimulation Systems and Optimization of Electrical Stimulus Parameters for Paralytic Strabismus Treatment

K Eom, HS Lee, M Park, SM Yang… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Paralysis of the extraocular muscles can lead to complications such as strabismus, diplopia,
and loss of stereopsis. Current surgical treatments aim to mitigate these issues by resecting …

A 9-V-Tolerant Stacked-Switched-Capacitor Stimulation System With Level-Adaptive Switch Control and Rapid Stimulus-Synchronized Charge Balancing for …

M Park, K Eom, HS Lee, SB Ku… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article proposes a stacked-switched-capacitor stimulation (SSCS) system that can
provide up to 9-V stimulation without using an external high-voltage (HV) supply or HV …

A 14-Bit, 12 V-to-100 V Voltage Compliance Electrical Stimulator with Redundant Digital Calibration

K Su, Z Qiu, J Xu - Micromachines, 2023 - mdpi.com
Electrical stimulation is an important technique for modulating the functions of the nervous
system through electrical stimulus. To implement a more competitive prototype that can …