초록 |
Polyaniline (PAni) as a sensing material have been extensively emerged. Thus, various reports have dealt with the characterization and applications of PAni. However, previously reports about characterizations or applications using PAni have demonstrated by ensemble analysis for multiple PAni nanostructures. Recently, nanobio sensors based on the characterization of a single nanoparticle were continuously reported. Because only a few nanoparticles needed to be monitored at a time, the required sample volume was significantly lower rather than the conventional ensemble method. Herein, PAni nanoparticles (PNs) were preferentially fabricated to construct stable PNs-based nanosubstrates. Moreover, nano-scattering spectrum imaging analysis (NSSIA) system has been developed to monitor the light scattering of single PNs. PNs-immobilized substrate was exposed to various pH conditions, and scattered light from single PNs was detected and analyzed using the NSSIA system. |