Overview of Preparation, Properties, and Applications of Advanced Materials in Wearable PPG Sensors 1

Wearable PPG sensor is a sensor technology that monitors human physiological parameters through optical principles. PPG stands for Optical Heart Rate Sensing, diode  which is a non-invasive physiological signal detection technology based on photoelectric detection technology. PPG sensors are usually composed of LED light sources and CD14538BF3A photosensitive elements. After the LED emits light that shines on the surface of the skin, some of it is absorbed, and the other part is reflected back to the sensor through the skin. Changes in blood flow velocity will affect the intensity of the reflected light, thereby achieving functions such as heart rate monitoring and blood oxygen saturation monitoring. This type of sensor is widely used in wearable devices such as smart bracelets, smartwatches, and sports bracelets due to its small size, portability, and low power consumption, providing users with functions such as physical health monitoring and sports data analysis.diode

Wearable PPG sensors are important technological tools for monitoring heart rate and blood oxygen saturation. The application of advanced materials in PPG sensors is crucial for their performance. The following is a review of the preparation, properties, and applications of advanced materials in wearable PPG sensors:diode

1、 Preparation of advanced materials:

1. Choose appropriate materials: Common advanced materials include optoelectronic materials, flexible substrate materials, conductive materials, etc. Choosing appropriate materials is crucial for improving the performance of sensors.diode