School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
ACS Nano. 2011 Mar 22;5(3):1990-4. doi: 10.1021/nn103043v. Epub 2011 Feb 21.
The electrical property of graphene is highly sensitive to its local environment, which makes graphene an ideal channel material in electronic sensors. Reduced graphene oxide (rGO) has been used as the desirable alternative to the pristine graphene due to its low-cost, solution-processable, and scalable production. In this paper, we present a field-effect transistor sensor using micropatterned, protein-functionalized rGO film as the conducting or sensing channel. Such a nanoelectronic sensor is able to detect various metal ions in real-time with high sensitivity.
石墨烯的电学性质对其局部环境高度敏感，这使其成为电子传感器中理想的沟道材料。由于成本低、溶液可加工和可扩展生产，还原氧化石墨烯 (rGO) 已被用作原始石墨烯的理想替代品。在本文中，我们提出了一种场效应晶体管传感器，该传感器使用微图案化、蛋白质功能化的 rGO 薄膜作为导电或传感通道。这种纳米电子传感器能够实时高灵敏度地检测各种金属离子。
