Photoplethysmography (PPG) is an affordable and straightforward optical technique used to
detect changes in blood volume within tissue microvascular beds. PPG technology has …

The wide diffusion of wearable sensors and mobile devices encouraged the study of
biometric recognition techniques that require a low level of cooperation from users. Among …

Wearable sensors have demonstrated wide applications from medical treatment, health
monitoring to real-time tracking, human-machine interface, smart home, and motion capture …

Photoplethysmography (PPG) sensors are used to accurately, instantaneously, and
noninvasively measure vital signs to provide a real-time indication of overall physical health …

In this paper, a new RF Energy Harvesting (RF-EH) system for Wireless Sensor Network
(WSN) feeding is proposed. It is based on two different monitored architectures using switch …

An adaptive PPG (Photoplethysmography) readout system for a dual-channel OLED-OPD
flexible sensor is designed and developed with motion artifact (< 1Hz) and ambient lighting …

Here, we presented a novel near-infrared (NIR) photodetectors based on Si micro-holes
array/graphene (SiMHs/Gr) Schottky barrier diode (SBD) for monitoring heart rate. The SBD …

Chronic diseases are the most prevalent and non-communicable health crisis globally. Most
chronic disease patients require continuous physiological monitoring, using wearable …

This paper reports on a novel analog front-end circuit designed to measure light intensity
variations for portable/wearable and implantable sensor applications in different fields …

In the past few years, a tremendous advancement in the outcome of biomedical circuits and
systems has been reported. Unfortunately, at the time of the sudden outbreak of COVID-19 …