Flexible and wearable biosensors are the next‐generation healthcare devices that can
efficiently monitor human health conditions in day‐to‐day life. Moreover, the rapid growth …

Photoplethysmography (PPG) is a non-invasive photometric technique that measures the
volume changes in arterial blood. Recent studies have reported limitations in developing …

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 …

Clinical devices play a vital role in diagnosing and monitoring people's health. A pulse
oximeter (PO) is one of the most common clinical devices for critical medical care. In this …

Wearable electronics or epidermal electronics have attracted growing interest for their
expansion into markets as health monitors and for biological applications. However, a key …

Cardiovascular disease is the leading cause of death globally. To provide continuous
monitoring of blood pressure (BP), a parameter which has shown to improve health …

Pulse transit time (PTT) is the time it takes for pressure waves to propagate through the
arterial system. Arterial stiffness assessed via PTT has been extensively examined in the …

Skin consists of epidermis and dermis layers that have distinct optical properties. The
quantification of skin optical properties is commonly achieved by modeling photon …

Objective. Noninvasive measurement of oxygen saturation (SpO 2) using transmissive
photoplethysmography (tPPG) is clinically accepted and widely employed. However …

Currently there exists little knowledge or work in phantoms for the in-vitro evaluation of
photoplethysmography (PPG), and its' relationship with vascular mechanics. Such phantoms …