Implantable CMOS biomedical devices

J Ohta, T Tokuda, K Sasagawa, T Noda - Sensors, 2009 - mdpi.com
The results of recent research on our implantable CMOS biomedical devices are reviewed.
Topics include retinal prosthesis devices and deep-brain implantation devices for small …

Implantable microimaging device for observing brain activities of rodents

J Ohta, Y Ohta, H Takehara, T Noda… - Proceedings of the …, 2016 - ieeexplore.ieee.org
In this review, we present an implantable microimaging device to observe brain activities of
small experimental animals such as mice and rats. Three categories of such devices are …

[图书][B] Smart CMOS image sensors and applications

J Ohta - 2020 - taylorfrancis.com
Revised and expanded for this new edition, Smart CMOS Image Sensors and Applications,
Second Edition is the only book available devoted to smart CMOS image sensors and …

Contact imaging: Simulation and experiment

H Ji, D Sander, A Haas… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
We report simulated and experimental image quality for contact imaging, a method for
imaging objects close to the sensor surface without intervening optics. This technique …

[HTML][HTML] Monitoring of the evolution of human chronic wounds using a ninhydrin-based sensory polymer and a smartphone

M Guembe-García, V Santaolalla-García… - Sensors and Actuators B …, 2021 - Elsevier
The healing processes in cutaneous wounds, ie, chronic wounds, represent a health
problem affecting 1–2% of the population. The evaluation of these wounds is mainly based …

Needle-type imager sensor with band-pass composite emission filter and parallel fiber-coupled laser excitation

E Rustami, K Sasagawa, K Sugie… - … on Circuits and …, 2020 - ieeexplore.ieee.org
This paper presents an implantable fluorescence system with a composite emission filter
and fiber-coupled laser excitation. The composite structure of the short-pass interference …

Device for actively removing a target cell from blood or lymph of a vertebrate subject

RA Hyde, MY Ishikawa, EKY Jung, R Langer… - US Patent …, 2012 - Google Patents
Devices, systems, and methods are described herein for con trolling the level of one or more
target cell types in the blood fluid and/or lymph fluid of a vertebrate subject. Devices and …

Optical communication with brain cells by means of an implanted duplex micro-device with optogenetics and Ca2+ fluoroimaging

T Kobayashi, M Haruta, K Sasagawa, M Matsumata… - Scientific reports, 2016 - nature.com
To better understand the brain function based on neural activity, a minimally invasive
analysis technology in a freely moving animal is necessary. Such technology would provide …

A Wireless Fiber Photometry System Based on a High-Precision CMOS Biosensor With Embedded Continuous-Time Modulation

MN Khiarak, E Martianova, C Bories… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Fluorescence biophotometry measurements require wide dynamic range (DR) and high-
sensitivity laboratory apparatus. Indeed, it is often very challenging to accurately resolve the …

Novel implantable imaging system for enabling simultaneous multiplanar and multipoint analysis for fluorescence potentiometry in the visual cortex

T Kobayashi, M Motoyama, H Masuda, Y Ohta… - Biosensors and …, 2012 - Elsevier
Techniques for fast, noninvasive measurement of neuronal excitability within a broad area
will be of major importance for analyzing and understanding neuronal networks and animal …