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Scattering analysis of single polyaniline nanoparticles for acidic environmental sensing

Title
Scattering analysis of single polyaniline nanoparticles for acidic environmental sensing
Authors
Yoochan Hong;Seungyeon Hwang;Jaemoon Yang;Dae Sung Yoon
Issue Date
2015
Journal Title
Sensors and Actuators B-Chemical
ISSN
0925-4005
Citation
Sensors and Actuators B-Chemical, Vol.218(null) : 31~36, 2015
Abstract
Herein, we demonstrate an acidic environmental sensing technique based on polyaniline (PAni) nanoparticles and a nanoscattering spectrum imaging analysis (NSSIA) system. PAni nanoparticles (PNs) were formulated by a homogeneous coating process using Tween® 80 as a surfactant. Subsequently, PNs were immobilized to an aminated glass substrate to sense environmental pH conditions for single PNs, using the NSSIA system. In contrast to dark-field scattering imaging of the PN, the NSSIA system enabled us to obtain scattering spectra for a single PN to specifically identify the environmental pH conditions. Furthermore, the immobilized PN on the substrate exhibited excellent reversibility for the acquisition of the scattering spectra after repeated change of environmental pH.
URI
http://www.sciencedirect.com/science/article/pii/S092540051500550X

http://ir.ymlib.yonsei.ac.kr/handle/22282913/140719
DOI
10.1016/j.snb.2015.04.098
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
Yonsei Authors
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