Physics

Nanotechnology

Pulse wave

Waveform

Wireless

Photoplethysmogram

Wearable computer

Engineering

Jitter

Biomedical engineering

Embedded system

Acoustics

Materials science

Programming language

Sensitivity (control systems)

Electronic engineering

SIGNAL (programming language)

Pulse (music)

Graphene

Computer science

Pulse Wave Analysis

Radar

Medicine

Telecommunications

Linearity

Detector

ACS Sensors

Profuse medical information about cardiovascular properties can be gathered from pulse waveforms. Therefore, it is desirable to design a smart pulse monitoring device to achieve noninvasive and real-time acquisition of cardiovascular parameters. The majority of current pulse sensors are usually bulky or insufficient in sensitivity. In this work, a graphene-based skin-like sensor is explored for pulse wave sensing with features of easy use and wearing comfort. Moreover, the adjustment of the substrate stiffness and interfacial bonding accomplish the optimal balance between sensor linearity and signal sensitivity, as well as measurement of the beat-to-beat radial arterial pulse. Compared with the existing bulky and nonportable clinical instruments, this highly sensitive and soft sensing patch not only provides primary sensor interface to human skin, but also can objectively and accurately detect the subtle pulse signal variations in a real-time fashion, such as pulse waveforms with different ages, pre- and post-exercise, thus presenting a promising solution to home-based pulse monitoring.

A Wearable and Highly Sensitive Graphene Strain Sensor for Precise Home-Based Pulse Wave Monitoring