| 초록 |
In this work, molybdenum disulfide nanoparticles (MoS2 NP) are enclosed by graphene oxide (GO) to fabricate the hybrid nanostructure for the signal increment of H2O2 biosensor. To fabricate the hybrid nanostructure constituted with MoS2 NP and GO (MoS2/GO), GO is introduced to enclose the MoS2 NP through the electrostatic interaction. To investigate the signal increment, myoglobin (Mb) is chosen as a sensing biomolecule. The fabrication of MoS2/GO is verified by X-ray diffraction and electron microscopy. Immobilization of MoS2/GO and Mb is investigated by scanning tunneling microscopy, energy-dispersive X-ray spectroscopy. Electrochemical potentiostat is used to investigate the properties of samples such as the increased H2O2 sensing property and reproducibility. From results, the proposed hybrid nanostructure can be introduced as the platform of biosensor development with the electrochemical signal increment. Acknowledgments: This research was supported by the Leading Foreign Research Institute Recruitment Program, through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning (MSIP) (2013K1A4A3055268). |
