Extensible Integrated System for Real‐Time Monitoring of Cardiovascular Physiological Signals and Limb Health

Abstract

In recent decades, the rapid growth in flexible materials, new manufacturing technologies, and wearable electronics design techniques has help establish the foundations for noninvasive photoelectric sensing systems with shape‐adaptability and “skin‐like” properties. Physiological sensing includes humidity, mechanical, thermal, photoelectric, and other aspects. Photoplethysmography (PPG), an important non‐invasive method for measuring pulse rate, blood pressure and blood oxygen, uses the attenuated signal obtained by the light absorbed and reflected from living tissue to a light source to realize real‐time monitoring of human health status. Our work illustrates a patch‐type optoelectronic system that integrates a flexible perovskite photodetector and all‐inorganic light‐emitting diodes to realize the real‐time monitoring of human PPG signals. The pulse rate of the human body and the swelling degree of finger joints can be extracted and analyzed using photodetectors, thus monitoring human health for the prevention and early diagnosis of certain diseases. Specifically, we developed a 3D wrinkled‐serpentine interconnection wire that increased the shape adaptability of the device in practical applications. The PPG signal sensor reported in this study has considerable potential for future wearable intelligent medical applications.This article is protected by copyright. All rights reserved

Patterned growth of AgBiS2 nanostructures on arbitrary substrates for broadband and eco-friendly optoelectronic sensing

“…The 3 dB bandwidth of at least 4 kHz was estimated for this photoconductor, which is sufficient for high frame-rate imaging 38 or biological photoplethysmography sensors. 39,40…”

Advanced and personalized healthcare through integrated wearable sensors (versatile)

“…The current wearables are capable of reliable continuous monitoring of an individual's vitals such as temperature, humidity, blood oxygen level, blood pressure, EEG, ECG, and many biomarkers of clinical relevance. 4–9 Apart from the sensing aspect, wearables also play an important role in the thermal management of the human body. 10,11 The electrochemistry-based transducer is the most reliable and flexible option available for the design of wearable sensors because of its sensitivity, ease of fabrication, no moving parts, mechanical robustness, and resistance to other conditions.…”

Industrially Scalable Textile Sensing Interfaces for Extended Artificial Tactile and Human Motion Monitoring without Compromising Comfort

“…Prolonged monitoring of biomechanics across extensive regions of the human body is critical to assess comprehensive physiological performance for early prevention and treatment of diseases and is also essential for customized service by individual behavior patterns. The development of wearable tactile sensors with excellent flexibility and skin-compatibility enables the convenient measurement of human biomechanical signals, showing great application prospects in health care, , biometric monitoring, − and human–machine interactions. , Advances in flexible materials, − structure design, − and layered composites , have paved the way for the evolution and innovation of tactile sensors and flexible electronics. However, current tactile sensors made from flexible membrane materials are confronted with the concurrent challenge of fulfilling the demands for conformability, breathability, and moisture permeability to ensure prolonged wearing comfort.…”