Sources of inaccuracy in photoplethysmography for continuous cardiovascular monitoring

J Fine, KL Branan, AJ Rodriguez, T Boonya-Ananta… - Biosensors, 2021 - mdpi.com
Photoplethysmography (PPG) is a low-cost, noninvasive optical technique that uses change
in light transmission with changes in blood volume within tissue to provide information for …

Wearable and flexible electronics for continuous molecular monitoring

Y Yang, W Gao - Chemical Society Reviews, 2019 - pubs.rsc.org
Wearable biosensors have received tremendous attention over the past decade owing to
their great potential in predictive analytics and treatment toward personalized medicine …

Label-free plasmonic immunosensor for cortisol detection in a D-shaped optical fiber

MS Soares, LCB Silva, M Vidal, M Loyez… - Biomedical optics …, 2022 - opg.optica.org
Measuring cortisol levels as a stress biomarker is essential in many medical conditions
associated with a high risk of metabolic syndromes such as anxiety and cardiovascular …

Emerging technologies of flexible pressure sensors: materials, modeling, devices, and manufacturing

Y Huang, X Fan, SC Chen… - Advanced functional …, 2019 - Wiley Online Library
As an important branch of wearable electronics, flexible pressure sensors have attracted
extensive research owing to their wide range of applications, such as human–machine …

Photoplethysmography revisited: from contact to noncontact, from point to imaging

Y Sun, N Thakor - IEEE transactions on biomedical engineering, 2015 - ieeexplore.ieee.org
Photoplethysmography (PPG) is a noninvasive optical technique for detecting microvascular
blood volume changes in tissues. Its ease of use, low cost and convenience make it an …

Wearable photoplethysmographic sensors—past and present

T Tamura, Y Maeda, M Sekine, M Yoshida - Electronics, 2014 - mdpi.com
Photoplethysmography (PPG) technology has been used to develop small, wearable, pulse
rate sensors. These devices, consisting of infrared light-emitting diodes (LEDs) and …

All-organic optoelectronic sensor for pulse oximetry

CM Lochner, Y Khan, A Pierre, AC Arias - Nature communications, 2014 - nature.com
Pulse oximetry is a ubiquitous non-invasive medical sensing method for measuring pulse
rate and arterial blood oxygenation. Conventional pulse oximeters use expensive …

TROIKA: A general framework for heart rate monitoring using wrist-type photoplethysmographic signals during intensive physical exercise

Z Zhang, Z Pi, B Liu - IEEE Transactions on biomedical …, 2014 - ieeexplore.ieee.org
Heart rate monitoring using wrist-type photoplethysmographic signals during subjects'
intensive exercise is a difficult problem, since the signals are contaminated by extremely …

Current progress of photoplethysmography and SPO2 for health monitoring

T Tamura - Biomedical engineering letters, 2019 - Springer
A photoplethysmograph (PPG) is a simple medical device for monitoring blood flow and
transportation of substances in the blood. It consists of a light source and a photodetector for …

Heart rate estimation from wrist-worn photoplethysmography: A review

D Biswas, N Simões-Capela, C Van Hoof… - IEEE Sensors …, 2019 - ieeexplore.ieee.org
Photoplethysmography (PPG) is a low-cost, non-invasive, and optical technique used to
detect blood volume changes in the microvascular tissue bed, measured from the skin …