Fully organic graphene oxide-based sensor with integrated pump for sodium detection

• Main Authors: Huang, Jingfeng, Harvey, James, Chen, Hu, Faulkner, Steve, King, James, Nimmo, Myra A., Tok, Alfred Iing Yoong
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/107429; http://hdl.handle.net/10220/26008
• Institution: Nanyang Technological University

Sweat is produced by the body naturally during physical activity and this fluid can be analysed in real-time to reflect the body’s hydration and electrolyte status. This paper reports a new type of organic disposable sensor pump that integrates sweat collection and sodium (Na+) ion sensing into cotton threads. This integration allows the sensor platform to be small, portable and wearable; thus allowing potential advantage to interface with the human body during field exercises enabling the provision of real-time data for immediate intervention. The sensor uses a sodium-selective Ion Selective Electrode (ISE) modified graphene oxide transducer intertwined with a thread pump. In this paper, we present the characterisation, synthesis and sensing data of this sensor.