Guest Seminar - Functional carbon nanomaterials for innovative chemical sensors

Selective recognition of various chemical species is important for applications in biology, health, environment, food industry, and military. Among the various sensing types, electrochemical sensors comprising selective receptors have been proposed for fast detection of various analytes with portable sensin module.

In this presentation, chemiresistive-type sensors using functional carbon nanotubes is highlighted for real-time wireless detection of analytes. Single-walled carbon nanotubes (SWCNTs) were patterned on a substrate as an electrical transducer. Non-covalent functionalization techniques were employed by decorating various receptors to induce selectivity and selectivity of the sensors. Real-time electrical signal transduction was achieved using the functionalized SWCNTs upon the exposure to gaseous or solute species facilitating surface chemical interactions. Multiplexed IoT-based wireless sensing properties were demonstrated using a smart card sensor module for rapid screening of various analytes.