Title :
Lable-free and real-time DNA detector based on as-grown CVD graphene
Author :
Wang, W.R. ; Gao, A.R. ; Lu, Ning ; Liang, Chulong ; Yang, Hongming ; Li, Tong ; Wang, Y.L.
Author_Institution :
State Key Labs. of Transducer Technol., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
In this paper, we investigated the biosensor based on as-grown chemical vapor deposition (CVD) graphene to detect DNA concentration. By directly measuring the electrical current change of modified graphene, graphene based biosensor was explored for label-free and real-time detection of DNA, which can rapidly detect as low as 0.1 nM DNA sensitively with high specificity. This method without applied gate voltage helps us understand better the influence of DNA on the transport properties of graphene.
Keywords :
DNA; biosensors; chemical vapour deposition; electric current; graphene; C; DNA concentration; as-grown CVD graphene; as-grown chemical vapor deposition graphene; biosensor; electrical current change; lable-free DNA detector; real-time DNA detector; Biomedical optical imaging; Biosensors; DNA; Graphene; Optical device fabrication; Optical films; CVD; DNA; Graphene; biosensor; high sensitive;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6627186
