nn6b04440_si_001.pdf (2.53 MB)
Self-Powered Triboelectric Micro Liquid/Gas Flow Sensor for Microfluidics
journal contribution
posted on 2016-08-04, 00:00 authored by Jie Chen, Hengyu Guo, Jiangeng Zheng, Yingzhou Huang, Guanlin Liu, Chenguo Hu, Zhong Lin WangLiquid
and gas flow sensors are important components of the micro
total analysis systems (μTAS) for modern analytical sciences.
In this paper, we proposed a self-powered triboelectric microfluidic
sensor (TMS) by utilizing the signals produced from the droplet/bubble via the capillary and the triboelectrification effects on
the liquid/solid interface for real-time liquid and gas flow detection.
By alternating capillary with different diameters, the sensor’s
detecting range and sensitivity can be adjusted. Both the relationship
between the droplet/bubble and capillary size, and the output signal
of the sensor are systematically studied. By demonstrating the monitoring
of the transfusion process for a patient and the gas flow produced
from an injector, it shows that TMS has a great potential in building
a self-powered micro total analysis system.