Polymer Sensor

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/ 2019-04-15 / News

2016年,东京大学Takao Professor Someya published in the journal Nature, "Plastic sensors will be the next opportunity for the development of polymer electronic materials." In this article, he raised the question “Can health and other physiological functions be monitored like a car self-test to sense human health?” 


Someya refers to the sensor, which is an indispensable sensor in electronic products.As a detection device, sensors are the basic components for automatic detection and automatic control. With the development of technology, sensors are constantly updated. Among them, Affected by emerging areas such as artificial intelligence and smart healthcare,polymer sensors are attracting more and more attention


In a wide variety of polymer sensors, and flexible pressure sensors, it is favored by many companies and research institutes. The market believes that wearable devices for health monitoring will bring development of flexible pressure sensors. Opportunity.


Why are flexible pressure sensors favored by wearable devices?


This is mainly related to the improvement of people's attention to physical health, and began to use wearable devices to monitor various physical health indicators in real time. People hope that wearable devices can be directly Attached to the surface of the skin to obtain a series of health information such as blood pressure, blood sugar, pulse, etc., and collect this information into smart devices, analyze and extract to help doctors diagnose. In the process of achieving this goal, The biggest bottleneck is that traditional rigid inorganic integrated devices cannot be closely adhered to and integrated with human flexible tissue, and thus cannot be accurately monitored.The birth of flexible pressure sensors helps to change this situation.


Professor Someya in 2003 For the first time, semiconductor polymers are used for pressure sensor devices, but at this time, flexible pressure sensors have problems such as low sensitivity, low minimum pressure response threshold, and slow response speed. In order to climb over these three mountains, many teams are following I have been investing in research for several years and have made many breakthroughs in these three areas.


In 2014, Nanjing University controlled the micro-nanostructure of the film through interface doping polymer.Increase the sensitivity of the flexible pressure sensor up to 133  kPa-1, the pressure response threshold as low as 0.8Pa, and the response time to be less than 47 ms. The study was cited and evaluated by the University of Tokyo's Takao Someya in the Nature&Materials paper for the highest sensitivity.

 


At the same time, people need wearable devices to monitor various body metrics in real time.A wearable sensing system is required to not only detect a single sensing signal, but also to measure multiple signals simultaneously. Therefore, multi-mode sensors have emerged.


Return to the question of Someya in the previous article - Can physiologic function monitoring such as health detect human health like a car self-test? The answer is yes. To achieve this goal, we must develop physics, chemistry, biology. Multi-mode flexible sensors and integrated systems, and in this process, polymer sensors play an important role.




Keywords: Polymer sensor
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