| 초록 |
On the surface of silver nanoparticle embedded silica coated graphene oxide (GO@SiO2@Ag NPs@MPBA), 4-mercaptophenyl boronic acid (4-MPBA) were self-assembled to detect glucose by surface enhanced Raman scattering (SERS). The SERS intensity of 4-MPBA on the GO@SiO2@Ag was 2.2-fold higher than GO@Ag. The pH-dependent behavior of 4-MPBA was investigated with GO@SiO2@Ag NPs, and the highest SERS signal intensity was detected at pH 3. Glucose binding to 4-MPBA integrated GO@SiO2@Ag NPs increased the SERS signal at both 1,072 and 1,588 cm-1. In this results, the development of SERS-based biosensors could be used for glucose detection and graphene oxide. |
