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Int. J. Mol. Sci. 2012, 13(9), 11130-11140; doi:10.3390/ijms130911130
Article

Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfer

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Received: 12 July 2012; in revised form: 24 August 2012 / Accepted: 24 August 2012 / Published: 6 September 2012
(This article belongs to the Special Issue Advances in Single Molecule Spectroscopy)
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Abstract: We present a method to modulate the fluorescence of non-polar single squaraine-derived rotaxanes molecules embedded in a polar poly(methyl methacrylate) (PMMA) matrix under an external electric field. The electron transfer between single molecules and the electron acceptors in a PMMA matrix contributes to the diverse responses of fluorescence intensities to the electric field. The observed instantaneous and non-instantaneous electric field dependence of single-molecule fluorescence reflects the redistribution of electron acceptors in PMMA induced by electronic polarization and orientation polarization of polar polymer chains in an electric field.
Keywords: single-molecule fluorescence; modulation; external electric fields; polarization single-molecule fluorescence; modulation; external electric fields; polarization
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Chen, R.; Gao, Y.; Zhang, G.; Wu, R.; Xiao, L.; Jia, S. Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfer. Int. J. Mol. Sci. 2012, 13, 11130-11140.

AMA Style

Chen R, Gao Y, Zhang G, Wu R, Xiao L, Jia S. Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfer. International Journal of Molecular Sciences. 2012; 13(9):11130-11140.

Chicago/Turabian Style

Chen, Ruiyun; Gao, Yan; Zhang, Guofeng; Wu, Ruixiang; Xiao, Liantuan; Jia, Suotang. 2012. "Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfer." Int. J. Mol. Sci. 13, no. 9: 11130-11140.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert