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Proceedings Paper

Self-doped polyaniline multifunctional optical probes in confined nanostructure for pH sensing
Author(s): Yoochan Hong; Seungyeon Hwang; Jaemoon Yang
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Paper 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.

Paper Details

Date Published: 12 July 2017
PDF: 7 pages
Proc. SPIE 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 103240D (12 July 2017); doi: 10.1117/12.2270836
Show Author Affiliations
Yoochan Hong, Yonsei Univ. College of Medicine (Korea, Republic of)
Korea Institute of Machinery and Materials (Korea, Republic of)
Seungyeon Hwang, Yonsei Univ. College of Medicine (Korea, Republic of)
Jaemoon Yang, Yonsei Univ. College of Medicine (Korea, Republic of)
Yonsei Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10324:
International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017
Jaebum Choo; Seung-Han Park, Editor(s)

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