Self-doped polyaniline multifunctional optical probes in confined nanostructure for pH sensing

Yoochan Hong; Seungyeon Hwang; Jaemoon Yang

doi:10.1117/12.2270836

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12 July 2017 Self-doped polyaniline multifunctional optical probes in confined nanostructure for pH sensing

Yoochan Hong; Seungyeon Hwang; Jaemoon Yang

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Proceedings Volume 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017; 103240D (2017) https://doi.org/10.1117/12.2270836
Event: International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 2017, Jeju, Korea, Republic of

Abstract

We have successfully fabricated nanocomposite, which is composed of polyaniline (PAni) and pyrene butyric acid (Pyba) via solvent shift method, and the outer layer was enclosed by Tween 80 as a surfactant. First of all, the various ratios between PAni and Pyba were applied for synthesis of polyaniline nanocomposite, and an identical condition for exhibition of proper absorbance and fluorescence properties was found out. The morphology of polyaniline nanocomposite was confirmed via scanning electron microscopic imaging and hydrodynamic size was also confirmed by dynamic light scattering method. We demonstrated that confined self-doped polyaniline nanocomposite as a pH sensing agent are preserved in the doped state even at a neutral pH value. Especially, PAni exhibited strong convertible property at absorbance spectra, on the other hand, Pyba showed changing property at fluorescence spectra at various pH values. In conclude, this polyaniline nanocomposite can accomplish as a fine nanoagent expressing absorbance and fluorescence properties according to surrounding pH values.

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Yoochan Hong, Seungyeon Hwang, and Jaemoon Yang "Self-doped polyaniline multifunctional optical probes in confined nanostructure for pH sensing", Proc. SPIE 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 103240D (12 July 2017); https://doi.org/10.1117/12.2270836

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