title: Electrical detection of metal ions using field-effect transistors based on micropatterned reduced graphene oxide films.
abstract: 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.
authors.affiliation: School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
authors.forename: Herry Gunadi
authors.initials: HG
authors.lastname: Sudibya
authors.forename: Qiyuan
authors.initials: Q
authors.lastname: He
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D007477:Ions / Q000032:analysis; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008567:Membranes, Artificial; D008670:Metals / Q000032:analysis*; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D010316:Particle Size; D013499:Surface Properties; D014173:Transistors, Electronic
chemical_list: D007477:Ions; D046911:Macromolecular Substances; D008567:Membranes, Artificial; D008670:Metals; D010087:Oxides; D006108:Graphite