Thin-walled graphitic nanocages as a unique platform for amperometric glucose biosensor

• Main Authors: Guo, Chun Xian, Zhao, Min Sheng, Shen, Yiqiang, Dong, Zhili, Li, Chang Ming
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Materials::Nanostructured materials
• Online Access: https://hdl.handle.net/10356/94183; http://hdl.handle.net/10220/7402
• Institution: Nanyang Technological University

A thin-walled graphitic nanocages material with well-developed graphitic structure, large specific surface area and pronounced mesoporosity was synthesized and used to construct a sensing interface for an amperometric glucose biosensor, showing a high and reproducible sensitivity of 13.3 μA mM−1 cm−2, linear dynamic range of 0.02−6.2 mM, and fast response time of 5 s. It was successfully used to accurately detect glucose in human serum with effective discrimination to common interference species such as dopamine, ascorbic acid, acetaminophen, and uric acid.