Flexible hybrid electronics for digital healthcare

Y Ma, Y Zhang, S Cai, Z Han, X Liu, F Wang… - Advanced …, 2020 - Wiley Online Library
Recent advances in material innovation and structural design provide routes to flexible
hybrid electronics that can combine the high‐performance electrical properties of …

Investigating the origin of photoplethysmography using a multiwavelength Monte Carlo model

S Chatterjee, K Budidha… - Physiological …, 2020 - iopscience.iop.org
Photoplethysmography (PPG) is a photometric technique used for the measurement of
volumetric changes in the blood. The recent interest in new applications of PPG has …

Pulse oximetry based on photoplethysmography imaging with red and green light: Calibratability and challenges

A Moço, W Verkruysse - Journal of clinical monitoring and computing, 2021 - Springer
Remotely measuring the arterial blood oxygen saturation (SpO 2) in visible light (Vis)
involves different probing depths, which may compromise calibratibility. This paper assesses …

Multimodal wrist biosensor for wearable cuff-less blood pressure monitoring system

VP Rachim, WY Chung - Scientific reports, 2019 - nature.com
We propose a multimodal biosensor for use in continuous blood pressure (BP) monitoring
system. Our proposed novel configuration measures photo-plethysmography (PPG) and …

Effects of contact pressure in reflectance photoplethysmography in an in vitro tissue-vessel phantom

JM May, E Mejía-Mejía, M Nomoni, K Budidha, C Choi… - Sensors, 2021 - mdpi.com
With the continued development and rapid growth of wearable technologies, PPG has
become increasingly common in everyday consumer devices such as smartphones and …

STSR: spectro-temporal super-resolution analysis of a reference signal less photoplethysmogram for heart rate estimation during physical activity

A Kumar, M Kumar, R Komaragiri - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The increasing demand for intelligent, wearable health monitoring devices with a
photoplethysmogram (PPG) sensor to monitor real-time heart rate (HR) in a subject attracts …

Derivation and validation of gray-box models to estimate noninvasive in-vivo percentage glycated hemoglobin using digital volume pulse waveform

S Hossain, SS Gupta, TH Kwon, KD Kim - Scientific reports, 2021 - nature.com
Glycated hemoglobin and blood oxygenation are the two most important factors for
monitoring a patient's average blood glucose and blood oxygen levels. Digital volume pulse …

Photoplethysmography for quantitative assessment of sympathetic nerve activity (SNA) during cold stress

K Budidha, PA Kyriacou - Frontiers in Physiology, 2019 - frontiersin.org
The differences in the degree of sympathetic nerve activity (SNA) over cutaneous blood
vessels, although known to be more prominent in the periphery than the core vasculature …

Anti-spoofing study on palm biometric features

H Wang, L Su, H Zeng, P Chen, R Liang… - Expert Systems with …, 2023 - Elsevier
Spoofing attacks severely threaten the security of biometric recognition systems. Two
concerns are raised regarding palm biometrics. First, the anti-spoofing ability of the palm …

In vitro evaluation of a non-invasive photoplethysmography based intracranial pressure sensor

TY Abay, JP Phillips, C Uff, M Roldan, PA Kyriacou - Applied Sciences, 2022 - mdpi.com
Intracranial pressure (ICP) is an important measurement in the treatment of Traumatic Brain
Injury (TBI). Currently, ICP can only be measured invasively, which exposes patients to …