1. Real-time 2D pH images by fast scanning light-addressable Potentiometrie sensor system controlled by LabVIEW program
- Author
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Hui-Ling Liu, Chao-Sung Lai, Chengang Lyu, Chia-Ming Yang, Chang Ren, and Yi-Ming Chen
- Subjects
Synchronization (alternating current) ,Engineering ,Sensor array ,business.industry ,Gate array ,Logic gate ,Microfluidics ,Electronic engineering ,Field-programmable gate array ,business ,Signal ,Computer hardware ,DC bias - Abstract
Up to now, real-time two dimensional (2D) chemical images are not available in a simple platform, results from big data with low generating rate by complicated process including movement of light source and ultra-low current measurement. A synchronization of all inputs including coordination of scanning step, ac signal of laser spot, and dc bias of LAPS is achieved by a field-programmable gate array (FPGA)-based system and self-developed LabVIEW program. Photocurrent, pH response, 2D pH images of different resolution of Si3N4/SiO2 LAPS can be easily obtained by this system. It could be integrated with microfluidics for a real-time Lab-on-chip with biomedical sensor array.
- Published
- 2015
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